PM-3514 Manual 2 - Logika...
Transcript of PM-3514 Manual 2 - Logika...
Model PM-3514 Two-Color Pyrometer
Operator’s Manual
Revision 2.1
Logika Technologies Inc.
2-2857 Sherwood Heights Dr.
Oakville ON, CanadaL6J 7J9
Tel: 905-829-5841
www.logikatech.com
Web: www.logikatech.com Phone: 905-829-5841 Fax: 905-829-8787 Email: [email protected]
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev 2.1
November 13
1 INTRODUCTION .................................................................................................. 2
2 DESCRIPTION ...................................................................................................... 2
2.1 MODEL NOMENCLATURE ................................................................................................................. 2
2.2 OPERATING PRINCIPLE ..................................................................................................................... 2
2.3 SPECIFICATIONS.............................................................................................................................. 3
3 LOCATION AND MOUNTING ............................................................................... 5
3.1 PYROMETER LOCATION .................................................................................................................... 5
3.2 PYROMETER MOUNTING .................................................................................................................. 7
4 UTILITY CONNECTIONS ....................................................................................... 7
4.1 ELECTRICAL CONNECTIONS ............................................................................................................... 7
4.2 WATER COOLING CONNECTIONS ....................................................................................................... 9
4.3 AIR PURGE CONNECTION ............................................................................................................... 10
5 OPERATION ...................................................................................................... 10
5.1 CONTROLS .................................................................................................................................. 10
5.2 SET MENU FUNCTIONS AND PROGRAMMING ..................................................................................... 10
Set Menu 1- Emissivity/Slope Adjustment ................................................................................ 11
Set Menu 2- Display Mode: ....................................................................................................... 16
Set Menu 3– Output Signal Integration Time: .......................................................................... 18
Set Menu 4-, 5-, 6- Process Alarm Settings: .............................................................................. 19
Set Menu 7-, 8- Current/Voltage Analog Output Span Settings: .............................................. 19
Set Menu 9- Aiming Laser Setup: .............................................................................................. 20
Display Menu 10- Enclosure Temperature: .............................................................................. 20
Display Menu 11- Two Color Ratio ............................................................................................. 21
Set Menu 12- Zero Compensation Gain ................................................................................... 21
Set Menu 13- Two-color mode signal attenuation ratio ........................................................... 21
5.3 DEBUGGING ................................................................................................................................ 27
6 MAINTENANCE ................................................................................................. 29
6.1 REGULAR MAINTENANCE ............................................................................................................... 29
6.2 INSTRUMENT RETURN ................................................................................................................... 29
7 APPENDIX ......................................................................................................... 30
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
1 Introduction
PM-3514 two-color infrared pyrometer is primarily used in the metallurgical industry to
measure temperature of steel or molten iron, wire rod, hot rolled steel, as well as cement kilns.
The pyrometer can “look” into a process and measure the target temperature from a distance,
providing an accurate reading while eliminating problems associated with contact measuring
devices. Dual infrared wavelengths input signals overcome application challenges such as
small targets, variable emissivity, dust, water or other interfering media between the target
and the pyrometer. Accurate temperatures are obtained even when the target is 95%
obstructed.
2 Description
2.1 Model Nomenclature
PM- 3514 - 024
Logika two color infrared pyrometer
Lower limit temperature 350°C
Upper limit temperature 1400°C
Input power supply 24VDC
Figure 2.1 PM-3514 Model Nomenclature
2.2 Operating Principle
Logika PM-3514 pyrometer uses a state-of-the-art photodiode to sense the infrared energy
from the target. Our pyrometer measures infrared energy emitted by a target at two
wavelengths and calculates the ratio of these measurements to determine the target
temperature. Since the emissivity of the two wavelengths is identical in same environment, it
does not influence the accuracy of the temperature measurement.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
The primary advantage of PM-3514 over thermocouple temperature measurement is that the
pyrometer accurately measures the target temperature by way of non contact means and
responses much faster.
Compared with single wavelength pyrometers, the advantages of the Logika PM-3514 two-
color pyrometer are:
1. Overcomes optical fouling or interfering media between the target and the pyrometer,
such as dust, dirt, smoke, and water vapor, to yield accurate temperatures.
2. Automatically compensates for changes in target emissivity or varying distances between
the target and pyrometer.
3. Almost no restrictions to pyrometer’s field of view, leaving more flexibility for pyrometer
mounting. The PM-3514 can accurately measure the target temperature even with as little
as 5% of the field of view.
4. PM-3514 can also switch to single color mode for special field applications.
The PM-3514 also has built-in temperature slope adjustment for calibrating the pyrometer
to the specific characteristics of the target metallurgy, and a visible target aiming laser for easy
installation. See Section 5.2.
2.3 Specifications
Power Input 24 VDC ±20% @ 210 mA
Power loss
protection
Reinstates all previous setup parameters when power is restored
Wavelength
One-color mode: 0.9-1.7μm
Two-color mode: 0.9-1.7μm and 1.7μm
Response time Adjustable – the fastest response time is 20 ms
Accuracy 0.5%
Repeatability ±2°C
Operating
temperature
No water cooling: -20˚C to +55˚C (-4˚F to +130˚F).
With water cooling: -20˚ C to 120˚C (-4˚F to 250˚F)
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Humidity Relative humidity range: 10-95%
Measuring Range
Single color mode:350-1400˚C (662˚F to 2552˚F)
Two color mode:350-1400˚C (662˚F to 2552˚F)
Field of View
One-color mode: D/S=50.
*D/S = 100 is available as special order
D is the distance between the infrared pyrometer and the target
S is the target diameter. See Figure 3.1 for more details.
Two-color mode: The target size can be much smaller. If
temperature is greater than 600°C, the maximum signal
attenuation ratio can be 95%.
Display mode: 4 digital LEDs. Display peak, valley, average or real time options
Focus range 0.5m- ∞
Calibration
coefficient
Two color mode: Temperature slope, 0.850 - 1.150. Adjustable in
0.001 increments (0.001↑results in 1.4°C ↓).
One color mode: Emissivity rate, 0.100-1.000 adjustable in 0.001
increments (0.01↑ results in 1-2.0°C ↓).
Alarms output:
High or low process temperature alarm, rated 0.2A at 220 VAC,
0.5A at 30 VDC, MOS relay output.
Ambient temperature high or low alarm
Analog output
Linear 4-20 mA (or 0-20mA) proportional to temperature
Linear 0-10VDC proportional to temperature
Aiming method
Visible aiming laser
wavelength 630nm±10%, Power≤3mW, safety rating IIa
Warm up time 10 minutes
Housing
Hermetically sealed stainless steel enclosure rated IP66, includes
purge air and cooling water connections.
Optional fiber optic lens assembly includes air purge fitting.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Size 370mm L X 100mm W X 190mm H (14.5” L X 4” W X 7.5” H)
Weight 4 kg (8.8 Lbs)
3 Location and Mounting
3.1 Pyrometer Location
Basic installation considerations:
• Pyrometer should not be installed above heat sources, also avoid directly exposure to
water vapor, excessive dust or smoke. If harsh ambient environment is unavoidable,
connect clean, dry air to the air purge fitting on the pyrometer enclosure. Heat
shielding or fan can also be applied to dissipate water vapor or smoke.
• If conditions allow, mount the pyrometer as close to the target as possible. This will
supply enough infrared energy for the pyrometer provides strong signal. At the same
time, the pyrometer must be kept far away enough to protect the electronics inside the
enclosure from excessive heat.
• Installation distance: dependent on one-color or two-color mode.
o One-color mode: target should be covered by the pyrometer’s field of view.
Check Figure 3.1 and Figure 3.2 for reference.
o Two-color mode: target can be 95% obstructed. See Figure 5.7 for reference.
For example:
If the target diameter is 20mm, pyrometer Displacement Coefficient is 50:1
(D/S=50:1).
In one-color mode, according to Figure3.1 and Figure3.2, the pyrometer has to be
installed less than 1 meter away from the target.
In two-color mode, it is not necessary for the target to be totally covered by the field
of view; the pyrometer can be installed more than 1 meter away from the target.
• Maximum ambient temperature for the pyrometer
o 50oC (122
oF) without water cooling
o 120oC (250
oF) with water cooling connected. See Figure 4.2
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Note: If target to pyrometer distance is less than 1000mm, Pyrometer field of view is more than
calculation value.
Note: If target to pyrometer distance is less than 1500mm, Pyrometer field of view is more than
calculation value.
Figure 3.1: One color mode Pyrometer Field of View
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Target is larger Target is equal Target is smaller
Ideal Acceptable Not Acceptable
PM Series
Field ofView
Figure 3.2 One-Color Mode Pyrometer Ideal Target Size
3.2 Pyrometer Mounting
Installation – PM-3514 has an adjustable mounting foot which is secured using a M10 bolt.
Aiming - Use the aiming laser to properly align the pyrometer with target.
4 Utility Connections
4.1 Electrical Connections
All electrical connections (power and signal) are made via a 12-pin connector and mating cable
for the junction box connections.
Cable Specification
Standard cable length is 2.0 meters; minimum bent radius for cable is 30mm. Other cable
lengths are available from Logika Technologies Inc. upon request.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Figure 4.1 Pyrometer connector and Cable assignment
Junction Box Wiring
Please see the Table 4.1, Appendix Figure 7.4 and Figure 7.5 for pyrometer wiring terminal
description. The supplied cable should be connected directly to the terminals of a junction box.
Junction box is shielded and connected to ground to eliminate electrical noise, preventing
triggering false detection. Any unused output wires must have insulation protection or be
connected to a free terminal in junction box.
For Junction Box with AC-DC converter: AC Input 85V-265VAC, connect to L, N, E
Cable No. Color Function Junction Box
Number
Junction Box
Name
1 Brown +24VDC 1 +24V
2 Red 0V 2 0V
3 Orange Analog 0-10V Output 3 0-10V
4 Yellow Analog 4-20mA Output 4 mA
5 Green Analog Output Ground 5 AGND
6 Blue PNP output (Upper limit )alarm) 6 PNP
7 Purple Upper limit alarm closed=Alarm 7 UPPER1
8 Gray Upper limit alarm Common 8 UPPER2
9 White Lower limit alarm closed=Alarm 9 LOWER1
10 Black Lower limit alarm Common 10 LOWER2
11 Pink RS485 A 11
12 Sky blue RS485 B 12
Table 4.1 Cable Terminal Wiring Description
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
4.2 Water Cooling Connections
General description
Water cooling is required when the ambient temperature is higher than 50oC (122
oF) to
protect electronics inside pyrometer tube from overheating, the connectors are two Φ10mm
OD barbed fittings on the enclosure. Stainless steel heat exchanger tubing is embedded in
the housing for efficient heat removal using circulating water.
Cooling Water Requirements
• Clean industrial water
• Maximum water inlet temperature 25oC (77
oF)
• Maximum water pressure of 4 bars (60 PSI).
• Water flow rate - 1 to 2 L/min (0.26 to 0.53 gal/min)
Connections
• Use Φ10mm ID or 3/8” ID hose for connections
• One fitting is connected to plant’s water supply
• The other one is connected to drain
• Both fittings should be secured with hose clamps
• Setup the cooling water flow rate by Figure 4.2
Am
bie
nt
Te
mp
era
atu
re
60
80
100
120
140
160
°C
Water0.3 0.5 1.0 1.5 2.0 L/M
8 °C
20 °C
25°C
Figure 4.2 Ambient Temperature vs. Water Flow Rate
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
▲
4.3 Air Purge Connection
Description- Compressed plant air can be used to protect the lens from dust and vapor. Purge
air cleans the lens, reduces maintenance times, and prolongs sensor life where dust or
corrosive vapor is present.
Purge Air Requirements
• Must be clean, dry instrument air no oil, dust and contaminants included. Poor air quality
will result in dirty lens and decrease detector performance. If the quality of compressed air
can’t guaranteed, it is better not connect it to the sensor to avoid the lens contaminated
and affect the sensor’s performance.
• Air filtration prior to the inlet fitting is recommended to improve the quality of purge air
• Air Pressure range from 50 to 200 g/cm2
(0.7 psi to 2.8 psi)
• Air Flow rate from 4 to 16 L/min (0.14 to 0.56 ft3/min)
Connection- Connect the plant air source to the purge air barbed fitting on the sensor’s lens
shroud with Φ10mm ID or 3/8” ID hose. Purge air flows out of the sensor shroud and
dissipates into the ambient environment.
5 Operation
5.1 Controls
The PM-3514 pyrometer’s control panel is located at the rear of the enclosure. The various
functions are described in greater detail below.
To view and adjust pyrometer menus:
• Use M3 Allen key to remove the back cover from unit
• Unthread the glass cover on the pyrometer body by turning it counterclockwise.
!!!!Note:
o The pyrometer tube may slide out of water jacket if angled downwards. Keep unit level
when disassembling for menu adjustment.
o The pyrometer tube is sealed during manufacturing to retain accuracy and quality.
Warranty is void if pyrometer tube is dismantled for any reason.
5.2 Set Menu Functions and Programming
In display mode:
Press to switch between one-color and two-color mode
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Press ▲ to switch temperature display between °F and °C
1 2 3 4 5 6 7
89101112131415
Figure5.1 Keypad setup sequence
Press SET repeatedly to choose setup parameters
Press ENTER to display current value
Use the arrow key to change the value
Press ENTER again to save the new value and EXIT setup
Set Menu 1- Emissivity/Slope Adjustment
One-color mode: Emissivity setup value
Emissivity: The relative ability of target measured surface to emit energy by radiation. It is the
ratio of energy radiated by a particular material to energy radiated by a black body at the same
temperature. A true black body would have an emissivity = 1 while any real object would have
emissivity < 1.
By adjusting the emissivity, the pyrometer can accurately measure target temperatures. If the
target’s emissivity is setup higher than its true value, the measured temperature by pyrometer
will be lower than the actual temperature.
The emissivity data in the table below is for reference only. Material surface finish can cause
varying emissivity. If the metal surface is slightly oxidized and dirty, its emissivity will drop
significantly.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Table 5.1 One-color emissivity table for different materials
Material and status
Emissivity
(wavelength 1.6ìm)
Aluminum
Not oxidized
Oxidized
Aluminum Alloy A3003, Oxidized
Rough surface
Grinded surface
0.02-0.2
0.4
0.4
0.2-0.6
0.02-0.1
Brass
Grinded surface
Polished surface
Oxidized
0.01-0.05
0.6
Chromium 0.4
Copper
Grinded surface
Rough surface
Oxidized
0.03
0.05-0.2
0.2-0.9
Gold
Hastelloy
Inconel Alloy
Oxidized
Sandblast
0.6-0.9
0.6-0.9
0.3-0.6
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Electro-polished 0.25
Iron
Not Oxidized
Oxidized
Rusted
Molten
0.1-0.3
0.5-0.8
0.6-0.9
0.4-0.6
Cast iron
Not Oxidized
Oxidized
Molten
0.3
0.7-0.9
0.3-0.4
Wrought iron
Dark color
0.9
Lead
Grinded surface
Rough surface
Oxidized
0.05-0.2
0.6
0.3-0.7
Magnesium 0.05-0.3
Mercury 0.05-0.15
Molybdenum
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Oxidized
Not Oxidized
0.4-0.9
0.1-0.35
The Monel Copper-Nickel Alloy 0.2-0.6
Nickel
Oxidized
Electrolysis
0.4-0.7
0.1-0.3
Platinum black 0.95
Silver 0.02
Steel
Cold-rolled steel Coil
Polished steel plate
Molten Steel
Oxidized
Stainless Steel
0.8-0.9
0.25
0.25-0.4
0.8-0.9
0.2-0.9
Tin (Not oxidized) 0.1-0.3
Titanium
Grinded surface
Oxidized
0.3-0.5
0.6-0.8
Wolfram
Grinded surface
0.1-0.3
Zinc
Oxidized
Grinded surface
0.15
0.05
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Procedure to adjust the emissivity in one-color mode:
1. Set the pyrometer to work in one-color mode (Mode LED off).
2. Determine actual target temperature with a contact RTD, thermocouple or other
appropriate instrument.
3. Press SET button until the display shows “1-“(flashing), then press ENTER to adjust
the emissivity.
4. Use the “up” and “right” arrow buttons to adjust the value.
5. The emissivity adjustment range is from 0.100 to 1.000; in 0.01 increments. For
0.01↑, results in 1-2.0°C ↓, factory default value is 0.99.
6. Press ENTER to save the adjustment and return to the temperature display mode.
Two-color mode: Temperature Slope Adjustment (Calibration)
Temperature slope is a coefficient to compensate for the two wavelengths emissivity
difference.
Note: The listed ratios are approximate values and can change with alloy surface condition and
oxidization.
For these oxide metals, the temperature slope setup value is 1.000
Cobalt Nickel Iron Stainless steel Steel
For these metals, the temperature slope value is 1.030
Cobalt Iron Stainless Steel
Rhodium Tungsten Molybdenum
Platinum Steel Nickel
Tantalum Cast Iron
Slope adjustment allows the user to refine the accuracy of the pyrometer for specific
applications. This feature can be used to calibrate the pyrometer.
1. Use a reliable thermometer to measure the surface temperature of the target. If
temperature readings vary in different measured areas, use the average reading.
2. Set the pyrometer to work in two-color mode (Mode LED ON)
3. Press SET button until the display shows “1-“(flashing), then press ENTER to adjust the
temperature slope.
4. Use the “up” and “right” arrow buttons to adjust the value.
5. The temperature slope adjustment range is 0.850 to 1.150 in 0.001 increments. For
0.001↑, results in 1.4°C ↓. Factory default setup value is 1.000.
6. Press ENTER to accept the slope adjustment and return to the temperature display mode.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Set Menu 2- Sample Mode:
This feature allows the user to select different temperature sample modes; Peak temperature;
Valley temperature; or Average temperature values.
Peak: Response time setup range from 0-999.9s. If response time is set greater than 999.9
seconds, the current sample mode will remain unchanged.
Applications: Best for moving target temperature measurement (steel plate, sheet). This
function can also be used for measuring surface temperature of liquid metal when highest
temperature measurement is required.
Valley: Response time setup range from 0-999.9s. If response time is set greater than 999.9
seconds, the current sample mode will remain unchanged.
Applications: Best for measuring surface temperature of liquid metals when lowest
temperature measurement is required.
Average: Response time setup range from 0-60.0 seconds.
Applications: Most field applications. For example, if there is scale on steel plate or bar,
average temperature sample mode should be selected.
Real time sample: Set response time to 0.0s. In this mode, the sampling time is set 20ms by
pyrometer and display changes each time new data is collected.
1. Press SET button until the display shows “2-“(flashing).
2. Press ENTER button and use the “up” arrow button to select sample mode. Select (1) for
Peak, (2) for Valley or (3) for Average. The factory default value is Average value (indicated
by the number 3).
3. Press ENTER to return to the temperature display mode.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Temperature
TimeΔt 2Δt 3Δt 4Δt0
Peak Display
Actual Temperature
Figure 5.2 Peak Sample Mode
Temperature
TimeΔt 2Δt 3Δt 4Δt0
Valley Display
Actual Temperature
Figure 5.3 Valley Sample Mode
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Temperature
TimeΔt 2Δt 3Δt 4Δt0
Average display
Actual temperature
Figure 5.4 Average Sample Mode
Temperature
Time(ms)20ms 40ms 60ms 80ms0
Real timedisplay
Actualtemperature
Figure 5.5 Real Time Sample Mode
Set Menu 3– Output Signal Integration Time:
This feature allows the user to average (integrate) the output signal over a set time for
control purposes and to avoid wide temperature signal swings.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Press SET until the display shows “3“ (flashing), then press ENTER to adjust the signal
integration time. Use the “up” and “right” arrow buttons to adjust the integration time.
The time adjustment range is 0 to 999 seconds. The factory default setting is 0 seconds.
Press ENTER to return to the temperature display mode.
For peak and valley temperature detection, the time adjustment range is 0-999s. For
average temperature detection, the time adjustment range is 0-60s.
Set Menu 4-, 5-, 6- Process Alarm Settings:
Use these menus to set the upper and lower alarms and the alarm deadband (to prevent
alarm relay contacts “chatter”, this is the temperature range in which the alarm turns off
after being triggered).
Menu “-4”: Upper Limit Alarm, default 1400°C
Menu “-5”: Lower Limit Alarm, default 350°C
Menu “-6”: Alarm Deadband coefficient, default 0.001
If temperature is lower than 350°C, lower alarm relay is triggered, “Lower” alarm LED
indicator turns ON
If temperature is higher than 1400°C, upper alarm relay is triggered. PNP output high
(24VDC) “upper” alarm LED indicator turns ON.
Note: Lower alarm may be set higher than the upper alarm
Deadband coefficient range 0 - 0.500
Lower alarm deadband= ±deadband coefficient*lower alarm setting
Upper alarm deadband= ±deadband coefficient*upper alarm setting
1. Use the “up” and “right” arrow buttons to adjust the alarm settings. Alarm settings are °C
(or °F).
2. Press ENTER to return to the temperature display mode.
Set Menu 7-, 8- Current/Voltage Analog Output Span Settings:
Set the linear temperature span to correspond with the current or voltage output of the
pyrometer.
Menu 7- : Lower Temperature for the output span, default 350°C
Menu 8- : Upper Temperature for the output span, default 1400°C
1. Use the “up” and “right” arrow buttons to adjust the span settings
2. Press ENTER to return to the temperature display mode.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Use the following guidelines to calculate the current/voltage output that corresponds
to temperature:
Voltage output (0-10 V) Current output (4-20mA)
T= present measured target temperature
TL = output span lower limit temperature
TH = output span upper limit temperature
Example:
Measured temperature is 943oC; output span is 4 to 20 mADC proportional to 700 to 1400
oC.
Calculated current output at measured temperature is
Set Menu 9- Aiming Laser Setup:
Aiming laser will shut off when the internal sensor tip temperature is more than 70 o
C.
Four setups available: OFFd, OFFn, ON d and ON n. See below for details. This function selects
whether the laser switch function is open or closed when the temperature limit is exceeded.
OFFd: Turns the aiming laser off. It will automatically turn back on when the target
temperature is greater than the lower limit setup value.
OFFn: Turns aiming laser off.
ON d: Turns aiming laser on. After 30 minutes, the laser will turn off if the target temperature
is below the lower limit setup value.
ON n: Turns aiming laser on. After 30 minutes, laser will turn off.
1. Use SET and ENTER buttons to select the Aiming Laser Switch (Menu “9-“).
2. Use the “up” and “right” arrow buttons to change the setting. The factory default is “OFFd”.
3. Press ENTER to return to the temperature display mode.
Display Menu 10- Enclosure Temperature:
This feature only displays the current enclosure temperature for diagnostic purpose.
If the enclosure temperature is more than 70 oC, the display shows “EEE1”.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
If the enclosure temperature is lower than -10 oC, the display shows “EEE2”.
Either of these conditions exists, steps must be taken to adjust the ambient temperature.
Display Menu 11- Two Color Ratio
This function only displays the ratio of the current two wavelength signals for service
diagnostic purposes.
Set Menu 12- Zero Compensation Gain
This feature is used to adjust the detector gain to compensate for targets with a starting
temperature below the specified measurement limits of the Logika PM-3514 pyrometer.
Use SET and ENTER buttons to select the Zero Compensation Coefficient (“Menu 12-“)
The four digit number shows the coefficient; the first number represents the coefficient
polarity (1 = positive and 0 = negative). The remaining three numbers show the coefficient
value.
Use the “up” and “right” arrow buttons to change the Zero Compensation Coefficient. This
value is always set below 1.00. The factory default for the Zero Compensation Coefficient code
is 10.10 which equals +0.10.
Press ENTER to return to the temperature detection mode.
No UsePolarity1: Positive0:Negative
Coefficient
Value X.XX
Figure 5.6 Zero Coefficient Gain setup
Set Menu 13- Two-color mode signal attenuation ratio
Attenuation ratio is a threshold for verifying the validation of the measured temperature.
Check Figure 5.7 for the term of attenuation ratio in this section. After the target temperature
is calculated by the pyrometer, it calculates each wavelength’s emissivity at this temperature.
For each wavelength, the attenuation ratio (100% – Emissivity value) should not be greater
than the setup value. If either calculated attenuation ratio is higher than the setup value,
means the pyrometer sensor didn’t receive enough radiation energy at this wavelength and
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
results final temperature not accurate, the LEDs display the lower limit temperature of the
pyrometer.
This function is only used in two-color mode. The setup range is 20%-100% and the default
setup value is 95%. If the attenuation ratio is set greater than 95%, this function will shut
down; and again, the lower limit temperature will be displayed. Next table gives reference for
different attenuation ratio setup values vs. different sizes of target.
Target size(Diameter) Accurate measurement
attenuation ratio
Simplified measurement
attenuation ratio
2mm-10mm 95% 95%
10mm-30mm 90% 95%
30mm-100mm 80% 95%
>100 mm 70% 70%
Table 5.2 Attenuation Ratio Setup Value
The values above are for reference only when setting up the attenuation ratio. The value
should be adjusted depending on application environment and target size.
1. Use SET and ENTER buttons to select the signal attenuation ratio setup (“Menu 13-“)
2. Use the “up” and “right” arrow buttons to change the value.
3. Press ENTER to return to the temperature display mode.
6001112
8001472
9001652
10001832
11002012
12002192
13002372
14002552
10
20
30
40
50
60
70
80
90
100
Attenuation ratio can beset at 95% (target can beobstructed to 95%)
Ma
x a
llo
we
d a
tte
nu
ati
on
ra
tio
(%
)
°C°F
7001292
350-400662-752
1
2
5
10
20 Attenuation FactorAttenuation FactorAttenuation FactorAttenuation Factor
500932
Target Temperature
Figure 5.7 Two-color mode signal attenuation ratio
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
In Figure 5.7
Attenuation Ratio=1-Emissivity Attenuation Factor= �
��������
Check the term Emissivity in Chapter 5.2 Set Menu 1 Emissivity/Slope adjustment
Set Menu 14- RS485 COM Port Address
1. Use SET and ENTER buttons to select the Menu “14-“
2. The pyrometer RS485 COM port address is displayed from 0-25.
3. Use the “up” and “right” arrow buttons to change the setting.
4. Press ENTER to return to the temperature display mode.
5.
Set Menu 15- RS485 COM Port Baud Rate
1. Use SET and ENTER buttons to select the Menu “15-“
2. The pyrometer RS485 COM port Baud Rate is displayed.
0-4800
1-9600
2-19200
3-38400
4-57600
5-115200
3. Use the “up” and “right” arrow buttons to change the setting.
4. Press ENTER to return to the temperature display mode.
5.3 RS485 Command and Protocol
Send Command: Sent from Computer or other control units, 10 ASCII bytes.
<Start byte> <Address bytes> <Command 2 bytes> <Data 5bytes> <CR>
Byte 1 Byte 2 Byte 3,4 Byte 5-9 Byte 10
* A-Z
Start Address Command Data 1-5 CR
Note: For the Address 0-25 displayed on pyrometer, uses capital letter A-Z to represent the
address instead for easy command input, see the next table for details.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Pyrometer Address 00 01 02 03 04 05 06 07 08 09 10 11 12
Command Address A B C D E F G H I J K L M
Pyrometer Address 13 14 15 16 17 18 19 20 21 22 23 24 25
Command Address N O P Q R S T U V W X Y Z
CR is verifying code:
CR=byte2^ byte3^ byte4^ byte5^ byte6^ byte7^ byte8^ byte9
For example:
If send *ADT00000<CR>, answer is *ADT0350C<CR>
<CR>= 0x41^ 0x44^0x54 ^ 0x30^0x30 ^0x30 ^0x30 ^ 0x30=0x61,
<CR>=a。
In the next table, the COM port address is 0 (A).
Command Description
SD One/two color selection
*ASDx0000<CR>
x=1 One color; x=2 Two Color
SL Two color Slope
*ASLxxxxx<CR> xxxxx: 0.850~1.150
SE One color Emissivity
*ASExxxxx<CR> xxxxx: 0.100~1.000
SM Sample mode setup
*ASMA0000<CR> ;Average sample mode
*ASMP0000<CR> ;Peak sample mode
*ASMV0000<CR> ;Valley sample mode
RT Output signal integration time setup
*ARTxxxxx<CR>
xxxxx: For peak and valley range 000.0-999.0;
Average:000.0-060.0;
DM Temperature Unit Display Mode
*ADMC0000<CR> ;Display Celsius
*ADMF0000<CR> ;Display Farhenheit
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
LU Upper Limit Alarm Temperature
*ALUxxxxx<CR>
xxxxx: 0350C(0662F)-1400C(2552F);
LD Lower Limit Alarm Temperature
*ALDxxxxx<CR>
xxxxx: 0350C(0662F)-1400C(2552F);
AS Analog span start temperature
*AASxxxxx<CR>
xxxxx: 0350C(0662F)-1400C(2552F);
AE Analog span end temperature
*AAExxxxx<CR>
xxxxx: 0350C(0662F)-1400C(2552F);
LS Aiming laser state setup
*ALS10000<CR> ;ON d
*ALS20000<CR> ;ON n
*ALS30000<CR> ;OFF d
*ALS40000<CR> ;OFF n
For ON d, ON n, OFF d, OFF n see 5.2 set menu 9 for details.
DB Alarm Deadband setup
*ADBxxxxx<CR>
xxxxx: 0.000-0.500;
SF One color full scale adjustment
*ASF0xxxx<CR>
xxxx: 0.30-3.00;
SO
One color zero point compensation adjustment
*ASOxxxxx<CR>
xxxxx: -1.00-+1.00;
DF Two color full scale adjustment
*ADFxxxxx<CR>
xxxxx: 0.990-1.010;
DT Display current measured temperature
*ADT00000<CR>
Answer
*ADTxxxxC(F)
xxxx: 0350-1400(0662-2512)
DA Display current ambient temperature
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
*ADA00000<CR>
Answer
ADAxxxxC(F)
xxxx: -100----+100
VR Display current software version
*AVR00000<CR>
Answer
AVRxxx00
xxx: 1.0
BR
Baud Rate setup
*ABRx0000<CR>
x=0-5
0---4800;
1---9600;
2---19200;
3---38400;
4---57600;
5---115200;
RS485 Com protocol: 8 bit, 1 stop, no parity
PA Display setup parameter
*APA00000<CR>
Answer:
*ASDx0000<CR>
*ASEX.XXX<CR>
*ASLX.XXX<CR>
*ASMX0000<CR>
*ART00X.X<CR>
*AMC0000<CR>
*ALU1400C<CR>
*ALD0350C<CR>
*ADB0.001h<CR>
*AAS0350C<CR>
*AAE1400C<CR>
*ALSX0000<CR>
*ASF0X.XX<CR>
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
*ASO-X.XX<CR>
*ADF1.000<CR>
*ABRX0000<CR>
*AVR1.000j
5.4 Debugging
Adjust emissivity according to material properties
(a) Use a thermocouple to measure the real temperature of the object, and then adjust
the slope until the test result is the same as the thermocouple.
(b) If the object is painted black, the emissivity can reach 0.98. Test the adjacent area,
and adjust the slope until the test result is the same as the thermocouple. Now the
slope has been properly adjusted.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Table 5.2 PM-3514 Keypad Operation
Function Description Default Key
SET Setup Parameters Display parameters from 1- to 13- each time button is pressed.
Press ENTER to Exit N/A SETUP
1- Slope/Emissivity
Adjustment
Single Color: Emissivity Rate, Range 0.10-1.00
Two Color: Temperature Slope: 0.850-1.150
0.95
1.000
2- Display/Sample
Mode
1 = Peak 2 = Valley 3 = Average 3
3- Response Time 0.0-999.9s adjustable. 0s=20ms, internal setup value, real time
display 0.5
4- Upper Limit Alarm Modify the Upper limit alarm temperature value 1400°C
5- Lower Limit Alarm Modify the Lower limit alarm temperature value 350°C
6- Alarm Deadband Modify alarm deadband value 0.001(0.1%)
7- Analog Output
Span Lower Limit
Temperature corresponds to linear analog current/voltage
output span lower value 350°C
8- Analog Output
Span Upper Limit
Temperature corresponds to linear analog current/voltage
output span upper value 1400°C
9- Aiming Laser 4 setups available: OFFd, OFFn, ONd, ONn. See setup menu 9-
for details. OFFd
10- Enclosure
Temperature
Setup constant at 40°C. If display is higher than 50°C, the
pyrometer should be cooled down N/A
Display
only
11- Two Color Signal
Ratio
Only used for pyrometer diagnostic purposes. In two color
mode, select 3(average) in setup 3-, the display value is the
ratio of the two wavelength signals
N/A Display
only
12- Zero
compensation
gain
Adjusts the pyrometer gain to compensate for targets with a
starting temperature below specified measurement limits. First
digit on left 1=positive, 0=negative. The remaining 3 numbers
are the coefficient value. The value should always be set below
0.30
10.10 (+0.1)
13- Two Color Signal
Attenuation Ratio
Only used in two color mode. If setup value is greater than
95%, this function is off. See setup menu 13- for details. 95%
14- RS485 COM
Address
Used for pyrometer communicates by RS485 0
15- Baud Rate 0-4800; 1-9600; 2-19200; 3-38400; 4-57600; 5-115200 1
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
6 Maintenance
6.1 Regular Maintenance
Regular attention to the following will ensure accurate and prolonged operation of the
pyrometer:
Lens Cleaning - Routinely check the lens glass for dust or oil residue. If necessary, clean glass
with alcohol and lens paper or soft cloth.
Calibration - Occasional calibration using the temperature slope adjustment (see “Set Menu 1“)
will ensure that maximum accuracy is maintained.
6.2 Instrument Return
Contact us at 1-888-856-4452 (1-888-8LOGIKA) with the Serial Number of your pyrometer
before you return our product. If the problem cannot be resolved by telephone or email, we
will provide you with a return authorization number.
Please return to: Logika Technologies Inc.
2-2857 Sherwood Heights Drive,
Oakville, ON, L6J 7J9
Canada
Do not return the pyrometer without a return authorization number. If the product is out of
warranty, we will provide a repair estimate and then complete the repairs upon your approval.
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
7 Appendix
Figure7.1 PM-3514-024 Dimension
Figure7.2 Junction Box Mechanical Dimension
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
+24V OUT
0V OUT
0-10V
mA
GND
PNP
LOWER
LOWER
UPPER
UPPER
J1
J2
J3
Filter
RS485 A
RS485 B
0-10V
mA
GND
PNP
LOWER
LOWER
UPPER
UPPER
+
-
E
+24V IN
EARTH
0V IN
RS485 A
RS485 B
Figure7.3 24V DC-DC Junction Box
J3
L
EARTH
N
J1
+24V OUT
0V OUT
0-10V
mA
GND
PNP
LOWER
LOWER
UPPER
UPPER
J2
+24V OUT
0V OUT
0-10V
mA
GND
PNP
LOWER
LOWER
UPPER
UPPER
RS485 B
RS485 A
85-260VAC
24VDCConverter
DC Filter
RS485 B
RS485 A
Figure7.4 AC-24VDC Junction Box with
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Logika Technologies PM-3514 Two-color Pyrometer Operator’s Manual Rev. November 13
Figure7.5 PM-3514 control panel layout
LOGIKAUpper LimitAlarmLower LimitAlarm △ △TechnologiesFront
Rear Pin Connection
1
2
3
4
5
6
7
8
9
10
11
12
13
Voltage In
Current In +
-
+
Signal Ground
L
E
N
DC +24V Out
0V Out
Figure7.6 Universal Temperature Display mechanical dimension