Rm110man - Power · The RM-RPP Remote Portable Printer is used for ... The RM-1H Infrared Optical...

RM-110 Operations ManualRM-110 Operations Manual Revision 003-2/98

RM -110Automated Comparator

RM-110 Operations ManualRM-110 Operations Manual2

25.0 Warranty ServiceRadian Research warrants each of our products to be free from defects in materialand workmanship. Our obligation under this warranty is to repair or replace anyinstrument or component therein which, within two years after shipment, proves tobe defective upon examination. Radian will pay local domestic surface freightcosts for return of product from Radian to the customer.

If warranty service is required, write or call you local Radian Researchrepresentative or contact our headquarters in Lafayette, Indiana and ask for anRMA (Return Materials Authorization) number. You will be given promptassistance and shipping instructions.

This warranty is voided by disassembly of the unit.

Our mailing address is:

RADIAN RESEARCH

3852 Fortune Drive

Lafayette, IN 47905 USA

Attn: RM-110 Service

The RM-110 is 100% digital and will remain within 0.0001% transfer error forlife. It never needs to be calibrated.

* SC-10, SC-30, and SC-60 are trademarks of the Scientific Columbus Company.

IB-10 is a trademark of the General Electric Company.

A7, J44 are trademarks of the Sangamo Company.

Warranty Service

91

RM-110 Operations ManualRM-110 Operations Manual

Contents

iii

1.0 Product Introduction ............................................ 61.1 Features .................................................................................................................... 7

2.0 Specifications ................................................... 92.1 Physical .................................................................................................................... 92.2 Electrical ................................................................................................................... 92.3 Environmental ......................................................................................................... 102.4 Accuracy ................................................................................................................. 102.5 Inputs ......................................................................................................................102.6 Output .....................................................................................................................112.7 Output Accessories ................................................................................................. 11

3.0 Keypad Conventions............................................ 13

4.0 Menu Structure ................................................. 164.1 Main Menu ............................................................................................................. 164.2 Detailed Description of Menu Items ........................................................................ 19

5.0 Data Management .............................................. 22Figure 2.0 PCA-LINK .............................................................................................. 23Figure 4.0 PCA-Lab ................................................................................................ 24

6.0 Inputs ............................................................. 256.1 Reference Standards (Open Collector) .................................................................... 256.2 Device Under Test (D.U.T.)...................................................................................... 256.3 RM-1S ................................................................................................................... 25

7.0 Output (Port D Only) ............................................ 267.1 RM-1P .................................................................................................................... 267.2 Open Collector ........................................................................................................ 267.3 RM-1R, Electronic/Mechanical Potential Relay ....................................................... 26

The RM-1R Electronic/Mechanical Potential Relay houses two independentrelays necessary for the electronic and mechanical Potential gating optionssupported by the RM-110. The relay used is determined by the RM-1R BNCconnection used. The electronic relay is a mercury wetted reed relay used fortesting *SC-10's, *SC-10/r's and *A-7's.. The mechanical relay is a coin silver drycontact relay used on induction standards like the *1B-10 and *J-44.

90

* See page 91

Test Accessories


Contents

iv

8.0 Testing a Standard using the Average of One to Three

Reference Watthour Standards ............................... 27

9.0 Testing a Polyphase Standard True Three

Phase Testing ................................................... 33

10.0 Testing a Radian Standard (Display Gating)................. 38

11.0 Testing an Electromechanical

Standard (Potential Gating)....................................43

12.0 Testing an Electronic Standard (Potential Gating) ........47

13.0 Testing an Electronic Standard (Electronic Gating) ....... 50

14.0 Testing an Induction or Solid State Meter via KYZ ........ 54

15.0 Testing a Solid State Meter Using Calibration LED

Output or Induction Meter Using an Edge Test .............60

16.0 True Three Phase Meter Testing ............................. 66

The RM-RPP Remote Portable Printer is used for printing results from the RM-110 Automated Comparator. The RM-RPP has an abundance of beneficialfeatures in one of the smallest, lightest printer packages available. Offeringfeatures such as bi-directional printing, logic-seeking print and a variety ofcharacter formats including condensed and enhanced print fonts. The RM-RPPhas full battery operation or the included AC adapter. The RM-RPP is the idealtool in the field for maintaining records and addressing billing complaints.

Test Accessories

89

RM-110 Operations ManualRM-110 Operations Manual 5

Contents

v

17.0 Demand Testing .................................................70

18.0 Testing the Accuracy of a Test Board

(RM-1P Electronic Light Valve Option) ...................... 75


(Open Collector Option) ........................................77

20.0 Interfacing a Solid State Meter to a Test Board

(Open Collector Option) ........................................79


(RM-1P Electronic Light Valve Option) ...................... 81

22.0 Pulse Constants ................................................ 83

23.0 Calculations ......................................................84

24.0 Test Accessories ............................................... 86

25.0 Warranty Service ............................................... 91

The RM-DS Meter Disk Sensor is a reflective pickup assembly used to sense thedisk rotation of an induction type meter. The pulses generated by the RM-DS arefed into input port A of the RM-110 Automated Comparator. With the RM-DS andthe RM-110 testing of induction type meters is done automatically and with a highdegree of accuracy compared to using a conventional push button or snap switch.

The RM-1P Electronic Light Valve is used to interface the output of the RM-110Automated Comparator with the optics of a calibration test board. The RM-1Poperates with both incandescent and infrared optic assemblies. To triggerincandescent source optics, the RM-1P uses a super luminous LED. This red visibleLED must be aligned with the sensing assembly of the test board’s optics. Totrigger infrared (modulated or non-modulated) source optics, the RM-1P uses aninfrared sensor and emitter combination. Using the RM-1P with the RM-110, solidstate meters can effectively be interfaced to older test board designs. The RM-1Pconnects to port D on the RM-110.

EL

EC

TR

ON

IC L

IGH

TVA

LVE

RM

-1P

88

Test Accessories


Product Introduction

1.0 Product Introduction

The RM-110 Automated Comparator is a compact, easy to use, hand-heldinstrument that allows for digitally comparing a Primary reference standard(usually one, two or three Radian RM-11 Primary standards) to any standard, testboard, solid state or induction meter. The RM-110 uses precise digital counters tocount and compare calibration pulses from either reference standards or billingmeters. The RM-110, after programmed with specific test parameters,automatically calculates and displays results in a user defined display of eitherpercent registration or percent error.

For field use, the RM-110 provides the user with an efficient means of testing bothsolid state and induction meters. The RM-110 tests true three phase, series singlephase and provides calculations for full load, power factor, light load anddemand.With capabilities to store up to 100 sets of test results, the RM-110 is acost efficient alternative to carrying expensive notebook computers in the field.For further test enhancement, the RM-110 can upload the test results to anycomputer running PCA-Link™ software. In addition to saving and uploading testresults the RM-110 can print the results using the RM-RPP Portable Printer.

In the meter shop, the RM-110 automates testing of any electronic orelectromechanical watthour reference standard. Up to three Reference standardscan be averaged together to provide a more precise and repeatable reference. TheRM-110 can also sum up to three Reference standards for the testing of bothpolyphase standards and meters. In the laboratory, test automation is achieved byusing existing voltage and current sources with the RM-110 and the PCA-Lab™software. This combination provides result calculation, data management anduploading options.

6

Spec

ificat

ions

RM-OA

OP TICAL ADAPTER

The RM-OA Optical Adapter is used with solid state meters whose infraredcalibration pulses are emitted from the optical communications port. The RM-OAmagnetically couples to the communications port of solid state meters. The suctioncup of the RM-1H is attached to the clear polycarbonate cover of the RM-OA. TheRM-OA incorporates a rare earth permanent magnet for exceptional holding powerover the life of the product.

The RM-KYZ Pulse Input Adapter is used to sense the KYZ output pulses of aninduction type or solid state meters. The pulses received from the meter’s KYZoutput are conditioned and fed into input port A of the RM-110 AutomatedComparator. With the RM-KYZ and the RM-110 the testing of KYZ equippedmeters is done automatically.

Test Accessories

87


Product Intoduction

1.1 Features

• Tests any electronic or mechanical standard

• Tests any test board

• Tests any solid state meter or induction meter

• Operates as a pulse divider for interfacing with other products

• Ability to average or sum up to three reference standards

• Does singlephase or polyphase testing

• Environment resistant

• Powered from a 9 volt battery or AC adapter

• Optional on-site printing capabilities

• Optional potential gating capabilities

• Compatible with PCA-Link™ software for field applications

• Compatible with PCA-Lab™ software for laboratory applications

• Stores up to 100 sets of meter test results

• Utilizes Pulse Counting as the preferred testing method

• Low battery indication

7

24.0 Test AccessoriesThe RM-1S Remote Reset Switch is a normally closed push button switch. TheRM-1S connects directly to port A of the RM-110 Automated Comparator. Theswitch of the RM-1S is hermetically sealed to provide increased reliability duringfield use. The push-button has tactile feel to provide instantaneous feedback ofswitch actuation.

The RM-1H Infrared Optical Pickup is used to sense the infrared pulses fromthe calibration LED of solid state meters. The pulses from the RM-1H are fedinto the input of the RM-110 into port A. When the RM-1H is used with theRM-110 Automated Comparator the testing of solid state meters is doneautomatically. The wide angular displacement of this sensor allows for fast, non-critical alignment. Also, automatic gain control circuitry of the RM-1H assuresoperation in all ambient sunlight conditions. The RM-1H/v is also available forthose solid state meters that have a visible calibration LED.

86

Test Accessories


Product Introduction

8

SERIES SINGLE-PHASE METER TESTING

% Registration = 100% * Meter Kh * Pulses per Rev. * #Revs. * #REF Current Inputs

Reference pulses B * Reference Standard Pulse * # of Elements

NOTE #2:

Number of elements corresponds to the number of meter elements in series.

TRUE THREE PHASE METER TESTING (USING CUSTOMER LOAD)

% Registration = 100% *Meter Kh * Pulses per Rev. * #Revs.

Reference Standard pulses B+C+D * Reference Standard Pulse Constant

NOTE #3:

If testing 3-phase, then 3 reference standards must be connected into ports B, Cand D. If testing 2-phase, then 2 reference standards must be connected to ports Band C, B and D or C and D. If two or three current inputs on the referencestandards are connected in series, then the reference pulse constant must beadjusted by the number of current inputs in series. See NOTE#1 for standardtesting.

Calculations

85


Specifications

2.0 Specifications

2.1 PhysicalLength: 190mm (7.5")

Width: 105mm (4.0")

Height: 33mm (1.25") approx.

Weight: .75 lbs approx.

Case Construction: Flame resistant ABS plastic withPolycarbonate label / keypad.Keypad good for 1 million cycles

2.2 Electrical

Power: 9 volt battery or 9-12 AC adapter

Power Consumption: 150 mW typical, 350 mW maximum

2.3 EnvironmentalTemperature: -20º to 70º C (-4º to 158º F) Normal

Operating conditions

Relative Humidity: 0 - 95%

Shock and Vibration: Any which is nondestructive

Water Resistance: Unit is splash proof, but it is not airtight

Orientation: Any, unless using the RM-1RElectronic/Mechanical relayaccessory. When using the Electronicoption, the arrow on the relay boxmust remain in the upward positionwith respect to the horizon.

9

23.0 CALCULATIONSThe following are calculations used for percent registration by the RM-110. Forpercent error, just take the percent registration minus 100%. For example, ifpercent registration is 99%, then percent error is 99% - 100% = -1.0%. Notethat the negative percent error indicates that the meter is running slow.

TESTING STANDARDS: COUNTING PULSES

% Registration = 100% * DUT pulses * DUT pulse constant

Reference Standard Pulses * Reference Standard Pulse Constant

TESTING STANDARDS: POTENTIAL GATING THE STANDARD UNDER TEST

% Registration = 100% * DUT display * DUT Display Kh

Reference Standard Pulses * Reference Standard Pulse Constant

For the above applications the RM-110 divides the reference standard pulseconstants by the number of reference standards used if averaging is specified.

NOTE #1:

If more than one current input is used, and the inputs are in series on thereference standards, then, the user must enter the pulse constant multipliedby the number of current inputs in series.

For example, in the reference pulse constant is 0.00001 and 3 inputs are inseries then the reference standard's pulse constant = 3 * 0.00001 = 0.0003.

84

Calculations


Specifications

2.4 Accuracy

Digital Gating

Total % Error: Open Collector less than: .0001

Potential Gating

Total % Error: Electronic Output

less than: (.0005 sec / T) + (Ipot * .02 ohms /Vpot) * 100

Potential Gating

Total % Error: Mechanical Output

less than: (.002 sec / T) + (Ipot * .004 ohms /Vpot) * 100

(T: Length of test in seconds)

(Ipot: Current draw of potential)

(Vpot: Potential test voltage)

2.5 Inputs (Ports A, B, C and D)

Pull-Up: 150 ohm / 1000 ohm, user defined, 5 voltsclamped at 5.7 volts

Frequency: 2.1 MHz maximum per port, 200nS pulsewidth minimum

10

RM 150A 0.00001 1.0

RM 200A 0.00002 2.0

SC-30 HI 0.00001 1.0

SC-30LO 0.0001 1.0

NON-AUTORANGING STANDARDS

22.0 Pulse Constants and Kh values for the RM-110(*SC-10, *SC-10v, *SC-30, A-7, *IB-10 and the RM-16)

Note: When using an RM-16 the position of the Pulse Constant switch located on the frontpanel, will be the multiplier for the following pulse constants and Kh values. The chartbelow is applicable for the 1,000 switch setting.

AUTORANGING STANDARDSDEVICE PULSE Kh& TAPS CONSTANTS VALUE

(SC-10,RM-16)

DEVICE PULSE Kh& TAPS CONSTANTS VALUE

1A 120V 0.00012 0.12

5A 120V 0.0006 0.60

12.5A 120V 0.0015 1.50

15A 120V 0.0018 1.80

50A 120V 0.006 6.00

1A 240V 0.00024 0.24

5A 240V 0.0012 1.20

12.5 240V 0.003 3.00

15A 240V 0.0036 3.60

50A 240V 0.012 12.00

1A 480V 0.00048 0.48

5A 480V 0.0024 2.40

12.5A 480V 0.006 6.00

15A 480V 0.0072 7.20

50A 480V 0.024 24.00

* See page 91 83

Pulse Constants


2.6 Outputs (Port D Only)

Type: Open collector with 1000 ohm pull-up

Imax Pull Down: 120 mA (If using RM-10-01's with serialnumbers below 501000 the maximum numberof Standards the RM-110 will support is 6. TheRM-110 will support more of the newergeneration standards).

Vmax Pull Up: 25 volts clamped at 27 volts

Typical State: Pulled down

Trigger: Leading edge of 10 mS pulse (pulled up)

2.7 Output Accessories (Port D Only)RM-1R Electronic/Mechanical Potential Relay

Mechanical Relay Specifications

Type: Coin silver dry contact relay

Resistance: .004 ohms typical, .005ohms maximum

Imax: 5 amps AC RMS

Vmax: 630 volts AC RMS

(relay clamped at 680V)

VA max Switch: 125 VA inductive

Operate Time: 8 mS maximum

Release Time: 8 mS maximum

Offset Time: 2 mS maximum

Dielectric Withstand: 2.5kV to any other part of the unit

Specifications

11

Figure 19.0 Interfacing a Solid State Meter to a Test Board

(RM-1P Electronic Light Valve Option)

8. Start the test on the test board. The RM-110 starts receiving pulses. Afterthe specified number of input pulses have been counted the RM-110outputs one pulse. This will continue until the RM-110’s CANCEL key ispressed.

9. The RM-110’s display shows the pulses in per the pulses out for as long asthe test is ran. For this application there are no test results and therefore nosave option.

82

Application 14


Electronic Relay Specification

Type: Mercury wetted reed relay

Resistance: .020 ohms typical, .050 ohms maximum

Imax: 1 amp AC RMS

Vmax: 630 volt AC RMS

(relay clamped at 680V)

VA max Switch: 10 VA inductive

Operate Time: 2 mS maximum

Release Time: 2 mS maximum

Offset Time: 0.5 mS maximum

Dielectric Withstand: 2.5 kV to any other part of the unit

Specifications

12 81

Application 14



Equipment Needed:

• RM-110 Automated Comparator

• Meter Test Board with Open Collector Input

• Solid State Meter Programmed with a known number of infrared LED calibration pulses per Kh.

• RM-1P Electronic Light Valve

• RM-1H Optical Pick-Up

Test Steps:

1. Install the meter to be tested into the test board socket fixture.

2. Position the RM-1P between the test board’s light emitter and detector.

Note:

• The RM-1P will function with both visible or infrared light.

3. Turn on RM-110 and select RUN TEST.

4. SELECT PULSE DIVIDER and enter the number of pulses IN for one pulseOUT.

5. Select PULSE OUTPUT TYPE. For this application choose the RM-1P.

6. Make proper connections to the RM-110, see Figure 19.0. Pulse IN to port Aand pulse OUT to port D.

7. Set up the test board to test the solid state meter. Include all variablessuch as: Form number, volts, current, and number of pulses per revolution. Ifnecessary, specify that a through-hole test will be conducted.


Keypad Conventions

3.0 RM-110 Keypad Conventions

15

13

12

11

10

9

8

7

6

5

4321

14

1. Input

2. Input

3. Input

4. Input/Output

5. Printer/PCA Interface Port

6. 9-12V DC Input Jack

7. Cancel

8. Enter

9. Up/Down Arrow Keys

10. Left/Right Arrows keys, Yes/No

11. Shift

12. Alphanumeric Keypad

13. On/Off

14. LCD Intensity

15. 4 Line 16 Character per Line LCD

13

8. The RM-110’s display shows the pulses IN per the pulses OUT for as long asthe test is ran. For this application there are no test results and therefore nosave option.

Figure 18.0 Interfacing a Solid State Meter to a Test Board

(Open Collector Option)

80

Application 13


Main Menu

1 Port A: Input

2 Port B: Input

3 Port C: Input

4 Port D: Input/Output

5 Printer and PCA Interface: Interface for either the RM-RPP PortablePrinter or the RM-PCA cable.

6 9V DC Input: 9-12V DC adapter

7 Cancel: When traversing menus on the RM-110 the CANCEL key performssimilar functionality to the ESCAPE key on most software applications.

Specifically, it should back the user out of the displayed menu leaving anyparameters unchanged.

8 Enter: This key serves as the primary selection key in the menu structureand as the Start/Stop Test key for running a test. It serves the same functionas the Start button on the RM-109 but can also stop the test at anytime and geta result calculated from the comparison of the pulse count between a standardand a device under test when running a manual length test. ENTER movesthe user into or down the menu structure while the CANCEL moves the userout of or up the menu structure.

9 Up and Down Arrow Keys: These keys control vertical cursor movementfor scrolling through menu items and results. If there are more than fourmenu items or four lines of result data an up or down movement is requiredfor viewing purposes. An up or down arrow icon will appear in the upperright or lower right corner of the LCD. These icons direct the user to scrollin the appropriate direction.

10Left/Right and Yes/No Keys: These keys control horizontal cursormovement within a keypad entry field and enables the user to scroll throughmultiple test result files. When viewing results, either a left or right arrowwill be present on their respective upper corners of the LCD indicating thedirection the user needs to move to see all of the results. Test parameters ofthe RM-110 can often be answered/set with the YES/NO keys. Direct keypadentry of the YES/NO key will satisfy those parameters.

14



Equipment Needed:



• Solid State Meter Programmed with a known number of infrared LED calibration pulses per Kh.

• RM-1H Optical Pickup

Test Steps:

1. Install the meter to be tested into the test board socket fixture.


3. Select PULSE DIVIDER and enter the number of pulses IN for one pulseOUT.

4. Select PULSE OUTPUT TYPE. For this application choose OPENCOLLECTOR.

5. Make proper connections to the RM-110, see Figure 18.0. Pulse IN to port Aand pulse OUT to port D.

6. Set up the test board to test the solid state meter. Include all variablessuch as: Form number, volts, current, and number of pulses per revolution.

7. Start the test on the test board The RM-110 starts receiving pulses. After thespecified number of input pulses has been counted the RM-110 outputs onepulse. This continues until the RM-110’s CANCEL key is pressed.

79

Application 13


11. Shift: The SHIFT key puts the keypad in TXT mode activating the letters onthe keypad as the user input mode. Pressing SHIFT again returns the keypadto the default mode (normal operating mode) of NUM where the normal inputis once again numbers.

12. Alphanumeric Keypad: Numeric keypad entry is direct when the RM-110 isin the NUM input mode. Character input is achieved via the keypad when theSHIFT key is pressed as described above. Once in the TXT input mode,keypad entry scrolls through the letters on the selected key with every press ofthat key. For example, there are either two or three letters assigned to everynumber key. Moving among characters on the LCD is done with the LEFT/RIGHT ARROW keys. Moving between lines is done with the UP/DOWNARROW keys.

13. On/Off: Turns the RM-110 power ON. OFF key turns the RM-110 poweroff. Note that the RM-110 boasts a time out feature and will shut itself offafter 5 minutes of sitting idle. However, it will not time out during a test orPCA-Mode.

14. LCD: Allows the contrast to be adjusted by pressing and holding down theLCD key and using the UP/DOWN ARROWS for increasing and decreasingcontrast level, respectively. Releasing the LCD key returns the RM-110 tonormal operating mode.

15. LCD Display: 16 character 4 line liquid crystal display.

Main Menu

15

7. Start the test on the test board. The RM-11 is running on and the test boardstarts receiving pulses from the RM-110. After the RM-110 sends the specifiednumber of pulses (based on the Kh value) to the test board the test will stop.

8. The RM-110’s displays show the Kh value entered earlier in the test and theend count of the standards. The test board itself shows the percent error,which is the percent error of the test board.

Figure 17.0 Testing the Accuracy of a Test Board (Open Collector Option)

78

Application 12


4.0 Menu Structure

All menu items should be selected one of two methods. First, by direct keypadentry of the number to the left of the desired menu option. Second, by moving thecursor using the up and down arrow keys to the desired selection and pressingEnter. A maximum of 8 menu items are allowed. Four menu items are visible atone time on the LCD. A down arrow icon is placed in the lower right corner ofdisplay for menus containing additional menu items. The unseen menu items canthen be viewed by using the RM-110’s down arrow key to move down the menu.When the user is at the bottom of the menu an up arrow icon will appear in theupper right corner of the display. This indicates that the user must move up themenu structure for previous items. The up arrow key is used to move back up themenu structure.

4.1 Main Menu1 RUN TEST

2 RESULTS

3 PREFERENCES

Main Menu and Sub- Menus

1 RUN TEST

1 Test Standard

2 Test Meter

3 Test Board

4 Pulse Divider

Main Menu

16 77

Application 12



Equipment Needed:


• RM-11 Primary Reference Watthour Standard (RM-10, RM-12 or RM-15 could also be used)


• Commercial adapter or a modified meter baseplate with the proper leads to bring voltage and current from the test board to the reference standard.

Test Steps:

1. Make connections between the test board and the RM standards as per Figure17.0 The standard must get both current and potential from the test board.


3. Select TEST BOARD and ENTER THE Kh.

4. Select the PULSE OUTPUT TYPE of the test board. For this application selectOPEN COLLECTOR.

Note:

• The Kh value will appear truncated in the LCD. However, all six places to the right of the decimal point are used in the calculation.

5. Make proper connections to the RM-110 Standards to ports A, B and/or C.Test board to port D (refer to Figure 17.0 for details).

6. Set up the test board as if testing a meter. For this example, thevariables are set for a Form 2S meter: Kh=7.2, 240v, 30 amps, and onerevolution.


Main Menu

17

2 RESULTS

1 View Result

2 Print Result

3 Delete Result

4 Delete All

3 PREFERENCES

1 PCA Mode

2 Reference Standards

1 Number of Reference Standards

Select Mode

2 Input Type

Reference Standards Current Inputs Used

3 Pulse Constant

Autoranging

4 Serial Numbers

3 Test Points

Full Load Revolutions

Power Factor Revolutions

Light Load Revolutions

7. Set up the test board as if testing a meter. For this example, thevariables will be set for a Form 2S meter: Kh=7.2, 240v, 30 amps, and onerevolution.

8. Start the test on the test board, the RM-11 must be on and the test board’s lightdetector should now be waiting for the first pulse to start the test.

9. After the test board’s counter has counted the specified number of pulses or diskrevolutions it stops the test.

10.The RM-110’s display shows the Kh value entered earlier in the test and theend count of the standards. The test board itself shows the percent error,which is the percent error of the test board.

Figure 16.0 Testing the Accuracy of a Test Board


76

Application 11


Main Menu

18

Preferences (cont.)

4 Demand Mins.

5 Results Desplay

% Registration

% Error

6 Results Digits

1 One Digit

2 Two Digit

3 Three Digit

7 User Prompts

Enter Voltage

Enter TA

Enter Meter Form

Enter Tester ID

Enter Manufacturer ID

Enter Meter ID

8 Time/Date

Time: HH:MM:SS

Date: MM:DD:YY

9 About

RM-110

S/N: XXXXXX

Rev: 1.00.00

75

Application 11



Equipment Needed:


• RM-11 Primary Reference Watthour Standard (RM-10, RM-12 or RM-15 could also be used)

• RM-1P Electronic Light Valve

Test Steps:

1. Make connections between the test board and the RM standards as per Figure16.0. The standard must get both current and potential from the test board.

2. Position the RM-1P between the test board’s light emitter and the light detector.

Note:

• The RM-1P will function with both visible or infrared light.


4. Select TEST BOARD and ENTER THE Kh.

Note:

• The Kh value will appear truncated in the LCD. However, all six places to the right of the decimal point are used in the calculation.

• There is no need to put a meter on the test board The RM-1P will simulate a meter for testing purposes.

5. Select the PULSE OUTPUT TYPE of the test board For this application selectRM-1P.

6. Make proper connections to the RM-110 Reference standards to ports A, B and/orC. The RM-1P to port D. Refer to Figure 16.0 for connection details.


Main Menu

4.2 Detailed Description of Menu Items

RUN TEST

Test Standard - Mode used for testing all standards.

Test Meter - Mode used for testing all meters and testing mechanical Standardsby pulse counting.

Test Board - Mode used for testing the accuracy of test boards.

Pulse Divider - Mode used for interfacing solid state meters with test boards.Also provides basic pulse dividing.

RESULTS

View Results - Allows user to view test results. Up to 100 sets of field testresults can be stored and viewed from RM-110. The left and right arrow keysmove among the different sets of results. The up and down arrow keys movewithin one result field to allow all of the result data to be seen.

Print Results - When used in conjunction with the optional RM-RPP PortableThermal Printer, the RM-110 prints on site

Delete Results - Allows for deleting the test results one set at a time. Use thearrow keys to select the results to be deleted.

Delete All Results - Allows for deleting all test results in one step.

PREFERENCES

PCA Mode - Puts the RM-110 in either PCA-Link or PCA-Lab mode, allowingeither software program to completely take control of the RM-110. It is

necessary to be in this mode to either upload or download test information and results.

19

Figure 15.0 Testing a Solid State Demand Meter (Demand Testing)

Application 10

74


Preferences (cont.)

Reference Standards - Defines the number of reference standards used aswell as: input type, number of current inputs used, pulse constants,autoranging and serial numbers.

Number of Reference - Enter 1, 2 or 3 reference standards.

Input Type - Select either Radian or Other Standard, the input type refersto the pull-up resistor value of the reference output. After defining the inputtype, the number of reference standards current inputs is defined.

Pulse Constant - Enter the pulse constant of the reference standard(s).The default setting here is the Radian pulse constant 0.00001. Define ifreference standard is autoranging. (See page 83 for other applicable pulseconstants.)

Note: If using more than one reference standard, each one must have the same pulse constant and pull-up resistor value.

Serial Numbers - List the serial numbers for up to 3 reference standards.Accommodates an eight digit alphanumeric entry.

Test Points - The number of revolutions or equivalent revolutions (1-99)per test point are defined.

Main Menu Application 10

20 73

16. To Show Results, select SHOW RESULTS from menu and the displaymoves back to the last set of results the RM-110 ran. The down arrow icon inthe lower right corner refers to additional information. Use the DOWNARROW key to scroll down the LCD to view that data. The results includethe time and date stamp, the calculated % registration (or % error), andthe kW value entered.

17. To Print Results, connect the RM-RPP portable printer to the printer port.Turn the RM-RPP to the ON 1 position and select PRINT. The same resultsthat can be viewed from the RM-110 are printed in a more detailed format.

18. To Save Results, select SAVE RESULTS from the menu and follow the RM-110 prompts by entering the following data: Tester Identification Number,Meter Identification Number, Manufacturer Identification Number, MeterVoltage Ratings, Meter TA and Meter Form. The saved results also includethe time and date stamp, and both the calculated results and the kW value of thedemand register.

19. Once the test results are saved they can be viewed or printed at a later date byselecting RESULTS from the Main Menu. If there are multiple results storedin the RM-110 then right/left and up/down arrow icons will appear in theirrespective corners of the LCD. The UP and DOWN ARROW keys and theLEFT and RIGHT ARROW keys are used to move between the results in thedirection indicated by the icons.


Results Display - Select either percent registration or percent error.

Results Digits - Select results resolution. Either one, two or three placesto the right of the decimal point.

User Prompts - Specific meter and tester information is entered toenhance the test results. These entries will also be store with the results.All User Prompts can be enabled or disabled directly from the RM-110YES/NO keys. PCA-Link can also disable this feature.

Enter Test Voltage - The service voltage of the meter under test.

Enter Enter TA - The test amps of the meter under test.

Enter Meter Form - The form number of the meter under test.

Tester ID - The tester’s identification number if applicable.

Enter Manufacturer ID - The manufacturer’s identification number ifapplicable.

Enter Meter ID - The meters serial number

Time/Date - View and set the time and date. The time and date isstamped on all results.

About - This provides an information line specific to the RM-110; it alsoshows the RM-110 serial number and the lateset software/firmwarerevision.

Main MenuApplication 10

11. Select DEMAND TEST and make the voltage and current adjustmentsnecessary.

Note:

Before starting the test locate the small indicator on the face of the demandregister. This indicates when a demand interval ends and starts. On some demandregisters it is a small dial pointer and others it is a small circular pie shaped wedge.When testing mechanical demand registers, it is best to let the register run throughwhatever part of the interval it is in when the voltage and current is applied. Thedemand test should be started at the precise instant when the second interval isinitiated. This allows the backlash in the gears in the register to be eliminated.

12. Reset the demand register. Press ENTER on the RM-110 and the meter resetswitch simultaneously to start the test.

13. While the test is in progress, the RM-110 display will show the demandinterval counting down and the standards counting up. Note that the demandtime interval was determined in the PREFERENCE menu.

14. When the demand time interval reaches 0 the RM-110 prompts the user tomanually enter the kW reading from the demand register. After the kW valueis entered the RM-110 goes to the TEST RESULTS menu. To return to theMain Menu at this time press Cancel. To process the results continue on inthis application.

15. The Test Results Menu allows the user to Re-Run the test, Show Results, PrintResults and Save Results. To re-run the test select RE-RUN and the RM-110will return to the test screen with the option to run any of the test points again.To run another test point, make the appropriate voltage and currentadjustments necessary and select the new test point. The results are combinedin the same set of results that included the last test point ran. To re-run a testpoint, the results write over the previous result data for that point. When thattest point is complete the RM-110 once again displays the TEST RESULTSMENU.

72 21


5.0 Data Management

The RM-110 when used with the RM-PCA cable and either PCA-Link™ or PCA-Lab™ software, provides complete data management and supervisory control forfield testing and laboratory applications. With either of these Windows™ basedsoftware applications the test results can be saved and later uploaded into ASCIIflat file format or (Open Data Base Compliant) formatted database.

PCA-Link™ SoftwareThe benefit of using the RM-110 with the RM-PCA cable and PCA-Link™software is twofold.

When the RM-110 is used in the field to test watthour billing meters, testingbecomes state of the art with automatic calculations and optional storagecapabilities. RM-110 has the means to store up to 100 sets of meter test resultsas well as critical test information such as test voltage, test current and phaseangle. All of this information is then easily uploaded back at the meter shop intoexisting databases via the RM-PCA Computer Interface Cable. This givesutilities an alternative to carrying costly notebook computers out in the field whileincreasing the accuracy and maximizing the efficiency of meter testing byeliminating manual data entry.

The second benefit of using the RM-110 with the RM-PCA Computer InterfaceCable and PCA-Link software is for the supervisory control. RM-110 menu itemscan be enabled or disabled through PCA-Link. This is done by configuring thetest parameters in the PCA-Link software and downloading with the RM-PCAInterface Cable to the RM-110. This provides a means of controlled testing foraccurate, repeatable results.

Another advantage is the RM-PCA interfacing directly to the RM-110. Thiseliminates the need for field standards to have the communications port.

Data Management Application 10

22 71

5. From the Main Menu select RUN TEST. For this application select TESTMETER.

6. Enter the METER Kh and press ENTER.

If testing a mechanical demand meter proceed to Mechanical Demand Testing.

Electronic Meter Demand TElectronic Meter Demand TElectronic Meter Demand TElectronic Meter Demand TElectronic Meter Demand TestingestingestingestingestingNote: For ease and simplicity it is recommended to program the meter's test

mode so that the "Time In the Interval" and the "Present KW Demand" are displayed.

7. Enter the PULSES PER Kh REVOLUTION and press ENTER. For SolidState Meters this is the Kh per equivalent revolution.

8. Select number of elements.

9. Select Meter Pulse Sensor as MANUAL.

10. Follow the display on the RM-110 and make the proper connections. Thereference standards to ports B, C or D. Press ENTER when connections arecomplete.

11. Select DEMAND TEST and make the voltage and current adjustmentsnecessary.

12. Place the meter in "Test Mode" and reset the demand register. Press ENTERon the RM-110 and the meter reset switch simultaneously to start the test.

Proceed to step 13.

Mechanical Demand TestingMechanical Demand TestingMechanical Demand TestingMechanical Demand TestingMechanical Demand Testing

7. Enter the PULSES PER Kh REVOLUTION and press ENTER.

8. Select the number of elements for the meter under test.

9. Select Meter Pulse Sensor as MANUAL.

10. Follow the display on the RM-110 and make the proper connections. Thereference standards to ports B, C or D. Press ENTER when connections arecomplete.


Data Management

Figure 1.0 PCA-Link and PCA-Lab Software provide complete datamanagement and supervisory control.

Application 10

17.0 Demand Testing: Electronic and Mechanical

Equipment Needed:


• RM-10 Portable Watthour Standard (RM-11, RM-12 or RM- 15 could also be used)

• Solid state demand meter programmed with a known number of infrared calibration pulses per Kh. Or a mechanical demand meter.

• RM-OA Optical Adapter

• RM 1H Infrared Optical Pickup

• Universal Test Jack

Test Steps:

1. Make the appropriate connections so that the meter under test (Device UnderTest, D.U.T) and the RM-10 Portable Standard(s) are powered from the samevoltage and current source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-10standard(s) should be counting.

Note:

• The RM-10 Portable Watthour Standard will output pulses continuously once auxiliary power, voltage and current have been applied.

3. Turn on the RM-110. From the Main Menu select PREFERENCES.

4. Select DEMAND MINUTES. Enter the demand test time interval in minutes.Intervals can range from 1-60 minutes. Press ENTER to save the change andreturn to the PREFERENCE menu. Press CANCEL to return to the MainMenu.

2370


Data Management Application 9

Figure 14.0 True Three Phase Meter Testing(Using Customer Load)

6924

PCA-Lab™ SoftwareThe RM-110 when used with the RM-PCA cable and the PCA-Lab™ softwareprovides automated testing and allows for the storing of result data for laboratorytesting of field and secondary reference standards. The RM-110 essentially servesas a Data Collection Module for the reference standards and the devices undertest. The RM-110 uses the input of one to three reference standards. This input istreated as the reference measurement. The remaining port(s) on the RM-110 arethen connected to the standards under test output. The software then comparesboth inputs. When the test is complete the results are calculated and displayed inthe appropriate cell of the test sheet. Device and test parameters are all userdefined with the option to save the setup. The testing process becomes semi-automated with the user changing voltage, current and phase angle settings (whichare from an independent power source). Once the PCA-Lab™ test and deviceconfigurations are saved they can be recalled at a later date. This to reduces timeand allows for repeatable test results which is a must in creating and maintainingan accurate meter test history. Results are easily uploaded into either an ODBCdatabase or an ASCII flat file format. Figure 4.0 shows a test sheet from PCA-Lab™.

Figure 2.0 PCA-Lab Test Sheet.


Inputs

The results are combined in the same set of results that included thelast test point ran. When a test point is re-run, the results will write over theprevious result data for that point. When that test point is complete the RM-110 once again displays the TEST RESULTS MENU.

15.To Show Results, select SHOW RESULTS from menu and the display movesback to the last set of results the RM-110 ran. The DOWN ARROW icon inthe lower right corner refers to additional information. Use the down arrow keyto scroll down the LCD to view that data. The results include the time anddate stamp, the calculated % registration (or % error), and the accumulatedwatthours during the test.

16.To PRINT RESULTS, connect the RM-RPP portable printer to the printer port. Turn the RM-RPP to the ON 1 position and select PRINT. The same resultsthat can be viewed from the RM-110 will be printed in a more detailed format.

17.To Save Results, select SAVE RESULTS from the menu and follow the RM- 110 prompts by entering the following data: Tester Identification Number, Meter Identification Number, Manufacturer Identification Number, Meter Voltage Ratings, Meter TA and Meter Form. The saved results include the time and date stamp, and both the calculated results and the accumulatedwatthours during the test.

18.Once the test results are saved they can be viewed or printed at a later date byselecting RESULTS from the Main Menu. If there are multiple results storedin the RM-110 then right/left and up/down arrow icons will appear in theirrespective corners of the LCD. The UP and DOWN ARROW keys and theLEFT and RIGHT ARROW keys are used to move between the results inthe direction indicated by the icons.

Application 99Application 8

68 25

6.0 Inputs

6.1 Reference Standards (Open Collector) Port A, B,C and D may be configured as inputs for the reference standards thatserve as the reference for the test. The RM-110 knows how many referencestandards due to the number defined in the Preference menu. The referencestandard may be autoranging or a device with taps. The RM-110 will prompt theuser to make the appropriate connections based on that number. For example, ifthere are three reference standards listed in the Preference menu the RM-110prompts the user to connect the reference standards to port A/B/C. If there wasonly one reference standard defined then the user would be prompted to connectreference standards to port A.

When using multiple reference standards the RM-110 determines the appropriatecalculation based the single-phase (Average) or polyphase (Sum) selection madein the preferance menu.. If single-phase is selected, the inputs (ReferenceStandards output) will be averaged. If polyphase is selected the inputs will besummed. Selecting polyphase is necessary for testing both polyphase standardsand meters.

6.2 Device Under Test (D.U.T)For testing solid state meters, induction meters or standards the input ports on theRM-110 are defined as D.U.T. inputs. These inputs can be the output of thestandard. Or in the case of meter testing, any Radian accessory emitting someform of calibration pulse such as the RM-1H, RM-1H/v, RM-DS and the RM-KYZ. Input pulses are acceptable from other open collector style pulse outputinterfaces, such as *SC-10’s and *SC-60’s.

6.3 RM-1SThe RM-1S Remote Reset Switch, when connected to port A, replaces theENTER and CANCEL keys. This allows for the start, stop and reset cycling ofany Radian standard connected to the RM-110 output port. The cycling sequencecontinues until the user presses the Cancel key to stop the test cycle. This inputoption should only be used when the user wants to manually control the testingprocess by counting disk revolutions.

* See page 90


Output

7.0 Outputs (Port D Only)

7.1 RM-1PWith the RM-110’s output defined as the RM-1P Electronic Light Valve,applications such as interfacing with a test board and testing a test board arepossible. In this mode the RM-110 produces a continuous pulse train that mimicsthe hole in the rotating disk of a meter and therefore trips the photo pickup. TheRM-1P interfaces with the output of the RM-110, or to the optics of the calibrationtest board.

7.2 Open CollectorWhen the Open Collector option is selected as the Pulse Output type, the RM-110will output pulses every time a set number of pulses or watthours are counted by theRM-110’s internal counter. This pulse output stream will continue until the ENTERkey is pressed on the RM-110 to stop the pulse output. This output is desired fortesting test boards using their open collector inputs.

7.3 RM-1R, Electronic/Mechanical Potential RelayThe RM-1R is an external adapter housing both a high current dry contact relay anda mercury wetted relay. Physical connection to the RM-110 determines which relayis used. The Mechanical relay's output has been optimized for potential gatingmechanical standards. The Electronic relay's output potential gates electronicstandards. Due to the mercury wetted relay, orientation of the RM-1R when usingthe Electronic relay option is critical. The RM-110 prompts the operator when toconnect the RM-1R to port D.

7. Enter the PULSES PER Kh and press ENTER.

8. Select METER PULSE SENSOR, this allows the use of the RM-1H, RM-DSor RM-KYZ.

9. Follow the display on the RM-110 and make the proper connections. ThePulse Sensor to port A, and the Standards to ports B, C or D. Press ENTERwhen connections are complete. Refer to diagram 14.0 for wiring details.

10.The RM-110 displays a pulse pickup test to allow for the pulse sensor to beproperly aligned. When the sensor is properly aligned the LCD will showflashing segments that are synchronous with the flag on the disk. If the RM-1His being used the LCD segments will coincide with an output calibration pulse.Note that if time was defined as test duration, the RM-110 skips the pulsepickup test. Press ENTER when alignment is achieved.

11.Select a TEST POINT, make the voltage and current adjustments necessary.Enter the number to the left of the desired test point. Test points can be run inany order. The number of revolutions are defined in the Main Menu in thePREFERENCE menu under TEST POINTS. Note the down arrow icon atthe lower right of the LCD. This refers to more menu choices. To view theadditional menu choices use the DOWN ARROW on the keypad.

12.The RM-110 LCD displays “PICKUP SENSING.” The RM-110 iswaiting for the flag or calibration pulse to trigger the sensor to start the test.

13.While the test is in progress, the RM-110 display shows the meterregistration as it accrues and shows the standards counting. When using aPulse Sensor, the test automatically stops when the pulse sensor senses thelast pulse. When the test has stopped the RM-110 automatically displaysthe test result screen. To return to the Main Menu at this time press CANCEL.To process the results continue on in this application.

14.The TEST RESULTS MENU allows the user to Re-Run the test, ShowResults, Print Results and Save Results. To re-run the test select Re-Run andthe RM-110 will return to the TEST POINT menu. This provides the optionto run any of the test points again. To run a different test point make theappropriate voltage and current adjustments and select the new test point.

Application 9

26 67


8.0 Testing a Standard using the Average of One to Three

Reference Watthour Standards. (Counting Pulses)

Equipment Needed:


• One, Two or Three Radian RM-11 Primary Reference Watthour Standards

• One, Two or Three Standards to be Tested (Device Under Test, D.U.T’s)

Important:

The *J-44 and *IB-10 can not be tested using pulse counting unless thestandards are tested under the Test Meter option of the RM-110 Main Menu.This is due to the pulses per equivalent revolution of the induction standards.A test of 1000 revolutions would be necessary for one pulse per equivalentrevolution if the Test Standard option was used. When the J-44 and IB-10 aretested under the Test Meter option test times are greatly decreased while theaccuracy is maintained. Test duration is determined by the user definednumber of revolutions. The RM-110 then compares and calculates the results.Please note that the J-44 and IB-10 can be tested using any of the TestStandard Gating options.

Test Steps:

1. Make the appropriate connections so that the standard(s) under test (D.U.T’s)and the RM-11 Primary Reference Standard(s) are powered from the samevoltage and current source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Reference Standard(s) should be counting.

Application 1

16.0 True Three Phase Meter Testing Using Customer Load

Equipment Needed:


• Three RM-10 Reference Standards (RM-11, RM-12 or RM-15 could also be used)

• Polyphase Solid State or Induction Meter

• RM-1H Optical Pickup or RM-DS Disk Sensor

• Universal Test Jack or Test Switch Connection

Test Steps:

1. Make the appropriate connections either with a universal socket adapter orconnections made from the meter test switch at the installation so that eachreference standard is powered from one of the voltage and current sources ineach phase. Refer to Fig. 14. Auxilliary power for each standard can be wiredin parallel and sourced from any convenient 120/240 volt singlephase supply.

2. Apply test voltage, current and auxiliary power.

3. Turn the power to the RM-110 on . From the Main Menu selectPREFERENCES. Go to the REFERENCE STANDARDS menu and enterthe number of reference standards that will be used, and enter 3. SelectPOLYPHASE as the mode of calculation. SINGLE-PHASE allows testingpolyphase meters as series single-phase. Polyphase provides summingcapabilities for true three phase testing of both polyphase standards and meters.Select the INPUT TYPE as RADIAN. Enter the number of current inputs usedon the reference standards. Enter the PULSE CONSTANT of the referencestandard. Answer YES for the reference standard AUTORANGING.CANCEL out to the Main Menu and select Run Test.

5. Select TEST METER.



2766 * See page 90


Application 1 Application 8

Figure 13.0 Testing an Induction Meter Using an Edge Test

6528

Note:

• Connect all standard pulse outputs to the RM-110.

• The RM-11 Primary Reference Watthour Standard will output pulses continuously once auxiliary power, voltage and current have been applied.

• The Kh of all Radian 150 amp standards is 1.0000. The Kh of all Radian 200 amp standards is 2.0000.

3. Turn on the RM-110. Go to the PREFERENCE menu and selectREFERENCE STANDARDS. Enter the number of reference standards thatwill be used. In this application one through three reference standards can bedefined. Select one reference standard press ENTER to continue. If more thanone reference standard is used the user must choose between single-phase orpolyphase modes of operation. Select RM-110 INPUT TYPE. This defines thereference standard output pull-up value. Select RADIAN (150 ohm). OTHERSTANDARD is 1000 ohm, press ENTER. Enter the number of current inputsused on the reference standard as one, two or three. Enter the pulse constant ofthe reference standard. Answer YES, that reference standard is Autoranging.Enter reference standard serial number. Press CANCEL to return to MainMenu. CANCEL out to the Main Menu.

4. From the Main Menu select RUN TEST.

5. Select TEST STANDARD.

6. Select the TEST DURATION, Select PULSES.

7. Enter in the number of pulses for the reference standard(s) to output beforestopping the test.

Note:

• The output pulse rate of the Radian 150 amp standard is 100,000 pulses per watthour or 0.00001 watthours per pulse. The output pulse rate of the Radian 200 amp standard is 0.00002.

8. Select COUNT PULSES for the Gating method.


Application 1

9. Select standard under test’s (D.U.T) OUTPUT TYPE. For this applicationselect RADIAN. The choice of OTHER STANDARD refers to anything notRadian.

10. Enter the PULSE CONSTANT of the (D.U.T.). If it is a Radianstandard the value is 0.00001. See page 83 for other applicable pulseconstants.

11. Follow the prompts on the RM-110 to make the appropriate connections. Ifusing three inputs, see diagram 1.0 “Testing a Radian Standard Using theAverage of Three Inputs.” Or see diagram 2.0 “Testing a Radian Standard” fortesting with only one reference standard. The number of reference standardsdefined in the Preference menu determine how the ports are configured. Ifthree reference standards are used then ports A, B and C will be configuredand their results averaged. This configuration will allow only one standardunder test which will connect to port D. For one reference standard only portA will be configured. This option will allow for up to three standards to betested. Once connections are complete press ENTER to start the test.

12. The RM-110 counts the number of pulses from both the referencestandard(s) and the standard(s) under test. The watthour count will bedisplayed when the specified number of pulses have been counted. The RM-110 averages the multiple reference standards internally then calculates theaveraged value in the results.

Note:

• The average of A (A AVG .99999) is hidden under the Enter to Cont. prompt.

13. The test is now complete. To process the results press ENTER. To move to the Main Menu press CANCEL.

Figure 12.0 Testing a Solid State Meter Using Calibration LED Output

Application 8

2964

Enter to Cont.

B AVG .99999

C AVG .99999

D DUT 1.00000


Processing Standard Test Results

14. To re-run a test select RE-RUN TEST. The pulses will be counted again andthe new count will be displayed on the RM-110. Press ENTER to continue orCANCEL to return to the Main Menu.

15. To show the calculated results select SHOW RESULTS. The end count isdisplayed along with a down arrow icon in the lower right corner.This icon references the down arrow key on the RM-110 hand controller. Bypressing the DOWN ARROW KEY the RM-110 displays the calculated results.Using the UP/DOWN ARROW keys the user can move between the watthourcount and the calculated results.

16. To print results connect the RM-RPP Remote Portable Printer to the Printerport on the RM-110. Turn the RM-RPP to the ON 1 position. Select PRINTRESULTS and press ENTER to start the printing process. The printout istime/date stamped and includes both the watthour count and the calculated %Registration or % Error.

17. Press CANCEL to return to the Main Menu.

Application 1

A AVG .99999

B AVG .99999

C AVG .99999

D DUT .99999

D DUT 99.999%

17. To Print Results, connect the RM-RPP portable printer to the printer port.Turn the RM-RPP to the ON 1 position and select PRINT. The same resultsthat can be viewed from the RM-110 are printed in a more detailed format.

18. To Save Results, select SAVE RESULTS from the menu and follow the RM-110 prompts by entering the following data: Tester Identification Number,Meter Identification Number, Manufacturer Identification Number, MeterVoltage Ratings, Meter TA and Meter Form. The saved results also includethe time and date stamp, and both the calculated results and the accumulatedwatthours during the test.

19. Once the test results are saved they can be viewed or printed at a later date byselecting RESULTS from the Main Menu. If there are multiple results storedin the RM-110 then right/left and up/down arrow icons will appear in theirrespective corners of the LCD. The UP and DOWN ARROW keys and theLEFT and RIGHT ARROW keys are used to move between the results inthe direction indicated by the icons.

Application 8

6330


15. The TEST RESULTS MENU allows the user to Re-Run the test, ShowResults, Print Results and Save Results. To re-run the test select RE-RUNand the RM-110 returns to the TEST POINT menu. This provides theoption to run any of the test points again. To run a different test point makethe appropriate voltage and current adjustments and select the new test point.The results are combined in the same set of results that included the last testpoint ran. To re-run the same test point the results will write over theprevious result data . Test point is complete the RM-110 displays the TESTRESULTS menu.

The RM-110 uses the following equation for calculating percent registration.

16. To Show Results, select SHOW RESULTS. The display will moveback to the last set of results the RM-110 ran. The DOWN ARROW icon inthe lower right corner refers to additional information. Use the down arrowkey to scroll down the LCD to view that data. The results include the Timeand Date Stamp, the calculated % registration (or % error), and theaccumulated watthours during the test.

Figure 3.0Figure 3.0Figure 3.0Figure 3.0Figure 3.0 Testing a Radian Standard Using the Average of Three Inputs (Counting Pulses)

Application 1

% Registration = K * (# of pulses) * (# of standard current inputs)

* 100

Display of * # of Meter

Ref. Standard Elements

Where:

100 = used to convert to a percentage

K = pulse constant from meter

# of pulses = calibration pulses per equivalent Kh

# number of standard inputs = how many current inputs are being used on the reference standard.

display of standard = the reading of the reference standard display

# of meter elements = the number of elements used on the meter under test

Application 8

3162


Figure 4.0Figure 4.0Figure 4.0Figure 4.0Figure 4.0 Testing a Radian Standard (Counting Pulses)

Application 1

9. Select METER PULSE SENSOR, this allows the use of the RM-1H orRM-DS. Manual will allow for the ENTER key or RM-1S to be used.

10. Follow the display on the RM-110 and make the proper connections. The RM-1H or RM-DS to port A, and the standards to ports B, C or D. Press ENTERwhen connections are complete. Refer to diagrams 12.0 and 13.0 for wiringdetails.

11. The RM-110 starts a PULSE PICKUP TEST to allow for the pulse sensorto be aligned. During this time the disk rotates at full load current. When thesensor is properly aligned the LCD shows flashing segments that aresynchronous with the flag on the disk. If the RM-1H is being used the LCDsegments will coincide with an output calibration pulse. Press ENTER whenalignment is achieved.

Note:

• If a pulse sensor was not defined, the RM-110 skips the pulse pickup test.

12. Select a TEST POINT, make the voltage and current adjustments necessary.Enter the number to the left of the desired test point . Test points can be run inany order. The number of revolutions are defined in the Main Menu in thePREFERENCE menu under TEST POINTS. Note the down arrow icon atthe lower right of the LCD. This refers to more menu choices. To view theadditional menu choices use the DOWN ARROW on the keypad.

13. The RM-110 LCD displays “PICKUP SENSING.” The RM-110 is waitingfor the flag or calibration pulse to trigger the sensor to start the test. Ifusing the RM-1S the display reads "PICKUP START". Depress RM-1S switchto start the test.

14. While the test is in progress, the RM-110 display shows the meterregistration as it accrues and shows the standards counting. When using aPulse Sensor, the test automatically stops when the pulse sensor senses thelast pulse. When the test has stopped the RM-110 automatically displays thetest result screen. To return to the Main Menu at this time press CANCEL. Toprocess the results continue on in this application.

Application 8

32 61


9.0 True Three Phase Standard Testing

Equipment Needed:


• Three Reference Watthour Standards (RM-11’s)

• One Polyphase Standard to be Tested (Device Under Test, D.U.T)

Test Steps:

1. Connect the DUT as follows:

• Each phase input in series with the current input of each reference standard.

• All potential neutrals connected to the neutral input of each reference standard.

• Each positive (+) voltage source (A,B,C) connected to the corresponding potenialinput of the D.U.T.

Note:

• See Figure 5.0

• Auxiliary power can be paralleled on all three of the reference standards.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Reference Standard(s) should be counting. Reset the standard under test.

Note:

• The RM-11 Primary Reference Watthour Standard outputs pulses continuously once auxiliary power, voltage and current have been applied.



15.0 Testing a Solid State Meter Using Calibration LED

Output or Induction Meter Using an Edge Test

Equipment Needed:


• RM-10 Portable Watthour Standard (RM-11, RM-12 or RM-15 could also be used)

• Solid state meter programmed with a known number of infrared calibration pulses per Kh, or induction meter

• RM-DS Disk Sensor or the RM-1H Optical Pickup

• Universal Test Jack

Test Steps:

1. Make the appropriate connections so that the meter under test (Device UnderTest, D.U.T) and the RM-10 standard(s) are powered from the samevoltage and current source.

2. Apply test voltage, current and auxiliary power.

3. Turn on the RM-110 and select PREFERENCES.

4. SELECT REFERENCE STANDARD set parameters up for an RM-10, RM-11, RM-12 or RM-15. See application 1 step 3 for details.

5. Select RUN TEST.


7. Enter the PULSES PER Kh and press ENTER. For solid state meters this isthe Kh per equivalent revolution.

8. Select the NUMBER OF ELEMENTS.

3360


Application 2

Figure 11.0 Testing an Induction or Solid State Meter via KYZ Output

Application 7

5934

3. Turn on the RM-110. Go to the PREFERENCE menu and selectREFERENCE STANDARDS. Enter the number of reference standards thatwill be used. For this application enter 3. Select reference standard INPUTTYPE as RADIAN, press ENTER. Enter reference standard's PULSECONSTANT. Is the reference standard AUTORANGING? Answer YES.Enter REFERENCE STANDARD SERIAL NUMBERS. Press ENTER tocontinue. Select the MODE OF CALCULATION. POLYPHASE providessumming capabilities for true three phase testing of both polyphase standardsand meters. Select POLYPHASE and press ENTER. CANCEL out to theMain Menu.

4. From the MAIN MENU select RUN TEST.


6. Select the TEST DURATION, select PULSES.

7. Enter in the number of pulses for the reference standard(s) to output beforestopping the test.

Note:


8. Select COUNT PULSES for the Gating method.

9. Select standard under test’s (D.U.T) OUTPUT TYPE. For this applicationselect OTHER STANDARD. Radian refers only to Radian products.

10.Enter the PULSE CONSTANT OF THE D.U.T. Use the YES / NO keysto answer if the D.U.T. is AUTORANGING, Select YES.

11.Follow the prompts on the RM-110 to make the appropriate connections. Seediagram 3.0 for "Testing a Polyphase Standard True Three Phase." Thisapplication uses the outputs of three Reference Standards that are powered offof independent voltage and current sources. Ports A, B and C will beconfigured for the reference standards. Port D is for the polyphase standard.Press ENTER to start the test.


12. The RM-110 counts the number of pulses from both the referencestandard(s) and the standard(s) under test. The watthour count isdisplayed when the specified number of pulses have been counted. TheRM-110 will sum the multiple reference standards internally then calculatethe summed value in the results.

13.The test is now complete. To process the results press ENTER. To moveto the Main Menu press CANCEL.

Processing Standard Test Results

14.To re-run a test select RE-RUN TEST. The pulses will be counted againand the new count is displayed on the RM-110. Press ENTER to continueor CANCEL to return to the Main Menu.

Enter to Cont.

B SUM .33333

C SUM .33333

D DUT .99999

Application 2

18. To Print Results, connect the RM-RPP portable printer to the printer port.Turn the RM-RPP to the ON 1 position and select PRINT. The same resultsthat can be viewed from the RM-110 are printed in a more detailedformat.

19. To Save Results, select SAVE RESULTS from the menu and follow theRM-110 prompts by entering the following data: Tester IdentificationNumber, Meter Identification Number, Manufacturer Identification Number,Meter Voltage Ratings, Meter TA and Meter Form. The saved results alsoinclude time and date stamp, and both the calculated results and theaccumulated watthours during the test.

Note:

• Tester ID#, meter ID#, manufacture ID#, meter voltage rating, meter TA, and meterform may all be disabled in the RM-110 Preference menu.

• The standard serial number(s) is listed in the Main Menu under Preferences.

20. Once the test results are saved they can be viewed or printed at a later dateby selecting RESULTS from the Main Menu. If there are multiple resultsstored in the RM-110 then right/left and up/down arrow icons will appear intheir respective corners of the LCD. The UP and DOWN ARROW keys andthe LEFT and RIGHT ARROW keys are used to move between the results inthe direction indicated by the icons.

Application 7

58 35


15. To show the calculated results select SHOW RESULTS. The end count isdisplayed along with a down arrow icon in the lower rightcorner. This icon references the DOWN ARROW key on the RM-110 handcontroller. By pressing the DOWN ARROW key the RM-110 displays thecalculated results. Using the UP/DOWN keys the user can toggle between thewatthour count and the calculated results.

16.To print results connect the RM-RPP Remote Portable Printer to the Printerport on the RM-110. Turn the RM-RPP to the ON 1 position. SelectPRINT RESULTS and press ENTER to start the printing process. Theprintout is time/date stamped and includes both the watthour count and thecalculated % Registration or % Error.

17. Press CANCEL to return to the Main Menu.

A SUM 3.33332

B SUM 3.33334

C SUM 3.33334

D DUT 3.33327

D DUT 100.000%

Application 2

13. Select a TEST POINT, make the voltage and current adjustments necessary.Enter the number to the left of the desired test point. Test points can be run inany order. The number of revolutions are defined in the Main Menu inthe Preference menu under Test Points.

14. The RM-110 LCD will display “PICKUP SENSING.” The RM-110 iswaiting for the first KYZ pulse to trigger the sensor to start the test.

15. While the test is in progress, the RM-110 display shows the meterregistration as it accrues and also shows the standards counting. When using aPulse Sensor, the test automatically stops when the pulse sensor senses thelast pulse. When the test has stopped the RM-110 automatically displaysthe test result screen. To return to the Main Menu at this time press CANCEL.To process the results continue on in this application.

16. The Test Results Menu allows the user to Re-Run the test, Show Results,Print Results and Save Results. To re-run the test select Re-Run and the RM-110 returns to the TEST POINT menu. This provides the option to run anyof the test points again. To run a different test point make the appropriatevoltage and current adjustments and select the new test point. The results arecombined in the same set of results that included the last test point ran. Tore-run the same test point, the new results write over the previous results.When that test point is complete the RM-110 once again displaysthe TEST RESULTS Menu.

17. To Show Results, select SHOW RESULTS from menu and the displaymoves back to the last set of results on the RM-110. The down arrow icon inthe lower right corner refers to additional information. Use the DOWNARROW key to scroll down the LCD to view that data. The results includethe time and date stamp, the calculated % registration (or % error), and theaccumulated watthours during the test.

Application 7

36 57



The formula that the RM-110 uses to calculate percent registration is as follows:

% Registration = Ke * (# KYZ pulses) * (# of standard current inputs)

* 100

Display of * # of Meter

Ref. Standard Elements

Where:

100 = used to convert to a percentage

K = pulse constant from meter

# of KYZ pulses = calibration pulses per equivalent Kh

# number of standard inputs = how many current inputs are being used on thereference standard.

display of standard = the reading of the reference standard display

# of meter elements = the number of elements used on the meter under test

9. Enter the number of elements of the D.U.T.

10. Select METER PULSE SENSOR. The RM-KYZ is the pulse sensor requiredfor this application.

11. Follow the display on the RM-110 and make the proper connections. The RM-KYZ to port A and the standards to ports B, C and/or D. Refer to diagram 11.0for details. Press ENTER when connections are complete.

12.The RM-110 starts an ALIGN PULSE SENSOR TEST to allow for the pulsesensor to be checked. During this time the disk rotates at full load current. Whenthe KYZ sensor is properly connected the LCD will show flashing segments thatare synchronous with the KYZ output. Press ENTER when alignment isachieved.

Figure 5.0 Testing a Polyphase Standard True Three Phase

3756



5538

10.0 Testing a Radian Standard (Display Gating)Equipment Needed:


• One, Two or Three Radian RM-11 Primary Reference WatthourStandards

• One, Two or Three Radian Standards to be Tested (Device Under Test, D.U.T’s)

Test Steps:

1. Make the appropriate connections so that the standard(s) under test (D.U.T’s)and the RM-11 Reference Standard(s) are powered from the same voltage andcurrent source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Reference Standard(s) should be counting. Reset the standard(s) under test’sdisplay. If this applies there should be zero’s across the entire display ifcorrectly reset.

Note:

• The RM-11 Reference Watthour Standard outputs pulses continuously once auxiliary power, voltage and current have been applied.


3. Turn on the RM-110. Select PREFERENCES. Select REFERENCESTANDARDS. ENTER the number of reference standards used. Press Enter. Ifmultiple reference standards are used Select either SINGLE-PHASE orPOLYPHASE for a mode of operation. Press ENTER. Select INPUT TYPE ofreference standard. Enter NUMBER OF CURRENT INPUTS used on thereference standard. Press ENTER. Enter the reference standards pulseconstant and select "Autoranging," yes or no. Press Enter. Enter the referencestandards SERIAL NUMBERS. Press Enter. Go to Main Menu.

4. Select RUN TEST.

Ke = 14.4 Wh

Ke = 0.15 Wh

7. The RM-110 prompts for the METER Kh. Enter the Ke factor, aftermaking the appropriate calculations on the following page.

Note:

• The Ke factor of any meter can be calculated by manipulating thefollowing constants:

Ke = The watthour pulse constant of each pulse from the pulse initiator(KYZ). The value of the Ke depends upon the meter Kh and the type oftest conducted.

Mp = Number of revolutions per pulse.

Examples:

For a mechanical meter:

Ke = (Kh) (Mp) = Kh = 7.2 Wh * Mp = 2 Revs = Ke = 14.4 Wh 1 Rev 1 Pulse 1 Pulse

where:

Mp = 2/1 = 2 revolutions per 1 pulseKh = 7.2 watthours per 1 revolution

For a solid state meter:

Ke = (Kh) (Mp) = Kh = 1.8 Wh * Mp = 1 Rev = Ke = 1.8 Wh 1 Rev 12 Pulses 12 Pulses

where:

Mp = 1/12 = 1 revolution per 12 pulsesKh = 1.8 = watthours per 1 revolution

8. Enter one pulse per Ke value.



14.0 Testing an Induction or Solid State Meter via KYZEquipment Needed:


• RM-10 Portable Watthour Standard (RM-11, RM-12 or RM-15 could also be used)

• Induction or solid state meter with a KYZ and a known Mp ratio (revs per pulse)

• RM-KYZ Pulse Input Adapter

• Universal Test Jack and a source of voltage and current such as a watthour test board.

Test Steps:

1. Make the appropriate connections so that the meter under test (Device UnderTest, D.U.T) and the RM-10 standard(s) are powered from the samevoltage and current source.

2. Apply test voltage, current and auxiliary power. At this point, both the D.U.Tand the RM-10 standard(s) will be running.

Note:

• The RM-10 Portable Watthour Standard outputs pulses continuously once auxiliary power, voltage and current have been applied.

3. Turn on the RM-110 and start PREFERENCES.

4. Select REFERENCE STANDARDS.Set the parameters for the referencestandard to be either a RM-10, RM-12 or RM-15. See Application 1, step 3 fordetails.

5. Select RUN TEST.

6. Select TEST METER.

54 39


6. Select the TEST DURATION, Select PULSES.

7. Enter in the number of pulses for the reference standard to output beforestopping the test.

Note:


8. Select DISPLAY GATING for the Gating method.

9. Enter the D.U.T. KH CONSTANT. See chart on page 82. Press ENTER

10. Follow the prompts on the RM-110 and make the appropriate connections. SeeFigures 6.0 and 7.0 for the applicable wiring diagrams. The selections made inthe preference settings will determine how the connections are made. In thisapplication onle one RM-11 Primary Watthour Standard is used and only oneD.U.T. Follow the RM-110's displayed instructions pressing ENTER to continue.

11. When the test is complete the RM-110 prompts the user to press ENTER tocontinue. The options to RE-RUN TEST, SHOW RESULTS, PRINTRESULTS are now available. Re-running the test will repeat the same test.

RM-110 Operations ManualRM-110 Operations Manualplication

12. Showing the results will display the result screen with a down arrow icon in thelower right corner. This icon references the DOWN ARROW/ KEY on theRM-110. Pressing the DOWN ARROW prompts the user to enter the D.U.T'sdisplay reading. Enter that value directly into the keypad and press ENTER.The calculated % registration or % error will appear at the bottom of the screen.For multiple D.U.T's enter their respective display reading directly over theprevious display reading. Press ENTER for the calculated result. Use the LEFTand RIGHT ARROW keys to move the cursor through the display's digits. TheD.U.T. number increases numerically as multiple entries are made. Repeat thisprocess for all additional D.U.T.'s. Press CANCEL when finished to return toMain Menu.

13. To Print Results connect the RM-RPP Portable Printer to the Printer port on theRM-110. Turn the RM-RPP to the ON 1 position. By selecting PRINTRESULTS the result screen appears and the printer will immediately beginprinting that screen. Once it starts printing the RM-110 asks for the D.U.T.'sdisplay to be entered. Enter the display reading and press ENTER to continuethe printing. The RM-110 will immediately ask for additional D.U.T. displayreadings. The printout has the readings listed in order starting at D.U.T. 1and continuing numerically upwards. Repeat this process for all additional testdevices. Press CANCEL when finished to return to Main Menu.

Application 3

Figure 10.0 Testing an Electronic Standard (Electronic Gating)

Application 6

5340


Figure 6.0Figure 6.0Figure 6.0Figure 6.0Figure 6.0 Testing a Radian Standard (Display Gating)


4152

12. Reset the electronic standard using it’s reset button, press ENTER to start test.

13. When the test is complete the RM-110 will prompt the user to Enter toContinue. The options to RE-RUN TEST, SHOW RESULTS, PRINTRESULTS or CHANGE TAPS are now available. Re-running the test willrepeat the same test.

14. Showing the results will display the results screen with a down arrow icon inthe lower right corner. The icon references the DOWN ARROW key icon theRM-110 keypad. Pressing the DOWN ARROW will prompt the user to enterthe D.U.T.'s display reading. The calculated % registration or % error willappear at the bottom of the screen. For multiple D.U.T.'s, enter theirrespective display readings directly over the previous display reading. PressENTER for the calculated result. Use the LEFT and RIGHT ARROW keys tomove the cursor through the display's digits. The D.U.T. number will increasenumerically as multiple entries are made. Repeat his process for all additionaltest devices.

15. To Print Results connect the RM-RPP Portable Printer to the Printer port onthe RM-110. Turn the RM-RPP to the ON 1 position. By selecting PRINTRESULTS the result screen will appear and the printer will immediately beginprinting that screen. Once it is printed the RM-110 will ask for the D.U.T.'sdisplay entered. This is made directly into the RM-110 Keypad. Press ENTERto begin the printing. The RM-110 will immediately ask for additional D.U.T.display readings. The printout will have the readings listed in order starting atD.U.T. 1 and continuing numerically upwards. Repeat this process for alladditional test devices.


Figure 7.0Figure 7.0Figure 7.0Figure 7.0Figure 7.0 Testing a Radian Standard Using the Average of Three Inputs (Display Gating)


5142

Note:

• There are several Electronic Standards that can be tested by electronicallygating the display. For testing an SC-10V, A-7 or SC-30, follow the guidebelow for each when using a Radian RM-10 or RM-11 as the referencestandard.

• SC-10 & A-7: The number of standard pulses for the reference standard tocount when testing the D.U.T. at 120 volts and 5 amps at Unity Power Factoron the 5 amp Tap= 60,000. See the NOTE under paragraph 8 of ApplicationNo. 5 for testing other current taps and other voltages.

• SC-30: The number of standard pulses for the reference standard to count willbe 100,000 for all currents and voltages.

9. Select ELECTRONIC GATING.

Note:

• To properly Electronic Gate any of the above standards with the RM-1R, acoax cable (RG-58U or similar) about 36" long with a BNC connector on oneend and the cable shield and center conductor on the other end to each beterminated with either a spade lug of proper size to fit the connectors on theRM-1R or banana plugs.

10. Enter the D.U.T. Kh CONSTANT. See chart on page 83 for commonly usedKh pulse constants.

11. Follow the prompts on the RM-110 to make the appropriate connections. Seediagram 10.0 for the applicable wiring diagram. The selections made in thePreference settings will determine how the ports are configured. In thisapplication there is one reference standard that will be connected into port A.The RM-1R Electronic relay will go to port D, press ENTER.

Note:

• Maintain the relationship of the RM-1R Electronic relay indicatorarrow to the horizon. With the RM-110 laying flat the arrow shouldpoint up. This is a wetted relay and must stay within 30o of the horizon.


Application 4

11.0 Testing an Electromechanical Standard

(Potential Gating)Equipment Needed:


• RM-11 Primary Reference Watthour Standard

• Electromechanical Standard to be Tested

• RM-1R Electronic/Mechanical Potential Relay

Test Steps:

1. Make the appropriate connections so that the standard(s) under test andthe RM-11 Primary Reference Watthour Standard(s) are powered from thesame voltage and current source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Primary Standard(s) should be counting but the electromechanical standardwill not be rotating.

Note:


3. Reset the electromechanical standard using it’s reset lever on the instrumentface.

4. Turn on the RM-110 From the Main Menu and select PREFERENCES.

5. Select REFERENCE STANDARDS from the Reference Menu. Set thereference standard parameters for an RM-11. See application 1 step 3 fordetails.

6. Select RUN TEST.


Application 6

4350

13.0 Testing an Electronic Standard (Electronic Gating)

Equipment Needed:



• Electronic standard with a Gate Input


Test Steps:

1. Make the appropriate connections so that the Electronic standard(s) under testand the RM-11 Primary Reference Standard(s) are powered from the samevoltage and current source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Primary Reference Standard(s) should be counting.

Note:


3. Turn the power to the RM-110 on and let the device time out to the Main Menuand select PREFERENCES.

4. Select REFERENCE STANDARDS. Set the reference standard parameters foran RM-11. See application 1 step 3 for details.

5. Select RUN TEST.


7. Select the means of the TEST DURATION, select PULSES.

8. Enter in the number of pulses you want the reference standard to output beforeremoving potential with the RM-1R.


8. Select the TEST DURATION, PULSES.

9. Enter in the number of pulses for the reference standard to output beforeremoving potential with the RM-1R.

Note:

• Older generation induction and electronic standards display "EquivalentRevolutions" instead of "Watthours". The Kh of these older standards isusually 0.6 watthours per equivalent revolution when tested at 120 volts, 5.0amps at 1.0 power factor. To determine the proper number of output pulsesfrom the reference standard, use the following as a guide. If the referencestandard for this test is a Radian Standard that outputs 100,000 pulses perwatthour, multiply 100,000 times the Kh of 0.6 the results in 60,000. Enterthis value as the "number of reference standard pulses to count" for a onerevolution test of the D.U.T. To select the number of pulses to count for the1.0; 12.5; 15.0 and 50.0 amp taps, refer to page 83 of this manual for the Khat each of these taps and multiply that figure by 100,000. Example: for the12.5 amp tap. 100,000 x 1.5 = 150,000.

10. Select MECHANICAL GATING.

11. Follow the prompts on the RM-110 to make the appropriate connections. SeeFigure 8.0 for the applicable wiring diagram. The selections made in thePreference settings will determine how the connections are made. In thisapplication there is one RM-11 Primary Reference Watthour Standard that isconnected to port A. The RM-1R Mechanical Relay will go to port D. PressENTER and verify that the electromechanical standards display has been reset.Once the display is at zero, press ENTER again to start the test.

12. When the test is complete the RM-110 prompts the user to ENTER tocontinue. The options to RE-RUN TEST, SHOW RESULTS PRINTRESULTS or CHANGE TAPS are now available. Re-running the test willrepeat the same test.

Application 4

Figure 9.0 Testing an Electronic Standard (Potential Gating)

Application 5

4944

through the display's digits. The D.U.T. number increases numerically asmultiple entries are made. Repeat this process for all additional testdevices.

14. To Print Results connect the RM-RPP Portable Printer to the Printerport on the RM-110. Turn the RM-RPP to the ON 1 position. By selectingPRINT RESULTS the result screen will appear and the printer immediatelybegins printing that screen. Once it is printed the RM-110 asks for theD.U.T.'s display to be entered. Press ENTER to begin the printing. The RM-110 will immediately ask for additional D.U.T. display readings. The printoutwill have the readings listed in order starting at D.U.T. 1 and continuingnumerically upward. Repeat this process for all additional test devices. PressCANCEL when finished to return to Main Menu.


Figure 8.0 Testing an Electromechanical Standard (Potential Gating)


45plication248

Note:

• Older generation induction and electronic standards display "EquivalentRevolutions" instead of "Watthours". The Kh of these older standards isusually 0.6 watthours per equivalent revolution when tested at 120 volts, 5.0amps at 1.0 power factor. To determine the proper number of output pulsesfrom the reference standard, use the following as a guide. If the referencestandard for this test is a Radian Standard that outputs 100,000 pulses perwatthour, multiply 100,000 times the Kh of 0.6. the results in 60,000. Enterthis value as the "number of reference standard pulses to count" for a onerevolution test of the D.U.T. To select the number of pulses to count for the1.0; 12.5; 15.0 and 50.0 amp taps, refer to page 83 of this manual for the Khat each of these taps and multiply that figure by 100,000. Example: for the12.5 amp tap. 100,000 x 1.5 = 150,000.

9. Select MECHANICAL GATING.

10. Follow the prompts on the RM-110 to make the appropriate connections. SeeFigure 9.0 for the applicable wiring diagram. The selections made in thePreference settings will determine how the ports are configured.This application uses one RM-11 Primary Reference Watthour Standardconnected to port A. The RM-1R Mechanical Relay will go to port D, pressENTER when connections are complete.

11. Reset the electronic standard using it’s reset button on the instrument face,press ENTER.

12. When the test is complete the RM-110 prompts the user to Enter to Continue.The options to RE-RUN TEST, SHOW RESULTS, PRINT RESULTS orCHANGING TAPS are not available. Re-running the test will repeat thesame test.

13. Showing the results will display the results screen with a down arrow icon inthe lower right corner. The icon references the DOWN ARROW key on theRM-110 keypad. Pressing the DOWN ARROW will prompt the user to enterthe D.U.T.'s display reading. Enter that value directly into the keypad andpress ENTER. The calculated % registration or % error will appear at thebottom of the screen. For multiple D.U.T.'s, enter their respective displayreadings directly over the previous display reading. Press ENTER for thecalculated result. Use the LEFT and RIGHT ARROW keys to move the cursor


Application 5

13. Showing the results displays the results screen with a down arrow icon inthe lower right corner. The icon references the DOWN ARROW key icon theRM-110 keypad. Pressing the DOWN ARROW will prompt the user to enterthe D.U.T.'s display reading. enter that value directly into the keypad and pressENTER. The calculated % registration or % error will appear at the bottom ofthe screen. For multiple D.U.T.'s, enter their respective display readingsdirectly over the previous display reading. Press ENTER for the calculatedresult. Use the left and RIGHT ARROW keys to move the cursor through thedisplay's digits. The D.U.T. number increases numerically as multiple entriesare made. Repeat this process for all additional test devices.

14. To Print Results connect the RM-RPP Portable Printer to the Printer port on theRM-110. Turn the RM-RPP to the ON 1 position. By selecting PRINTRESULTS the result screen appears and the printer immediately begins printingthat screen. Once it is printed the RM-110 will ask for the D.U.T.'s display tobe entered. This is made directly into the RM-110 Keypad. Press ENTER tobegin the printing. The RM-110 immediately asks for additional D.U.T. displayreadings. The printout has the readings listed in order starting at D.U.T. 1and continuing numerically upwards. Repeat this process for all additional testdevices.

Application 4

4746

12.0 Testing an Electronic Standard with Taps (Potential

Gating)Equipment Needed:



• Electronic Standard to be Tested


Test Steps:

1. Make the appropriate connections so that the Electronic standard(s) under test andthe RM-11 Primary Reference Standard(s) are powered from the same voltageand current source.

2. Apply test voltage, current and auxiliary power. At this point, the RM-11Primary Reference Standard(s) should be counting.

Note:

• The RM-11 Primary Watthour Standard outputs pulses continuously once auxiliary power, voltage and current have been applied.

3. Turn on the RM-110. From the Main Menu and select PREFERENCES.

4. Select REFERENCE STANDARDS. Set the reference standard's parameters for aRM-11. See application 1 step 3 for details.

5. Select RUN TEST.


7. Select the TEST DURATION, select PULSES.

8. Enter in the number of pulses for the reference standard to output beforeremoving potential with the RM-1R.

Rm110man - Power · The RM-RPP Remote Portable Printer is used for ... The RM-1H Infrared Optical...

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