C O N T E N T S Current Sensors - Coulton · C O N T E N T S ATR 0, 1 & 2 Series True RMS AC...

C O N T E N T SATR 0, 1 & 2 Series

True RMSAC Current Transducers 2–3

AT 0, 1 & 2 SeriesAC Current Transducers 4–5

ATR 3 & 4 SeriesHigh Current Transducers 6–7

DT 1, 2, 3 & 4 SeriesDC Current Transducers 8–9

AS1 Series Current Operated Switches 10–11ASM Series Self Calibrating

Current Switches 12–13AS3 Series Current Operated Switches 14–15AS3M Series Multi-pole

Current Operated Switches 16AG 1, 2 & 3 Series

Ground Fault Sensors 17–19DS3 Series DC Current Switches 20–21Accessories ■ PBR Series

PowerBASE™ Relays 22■ Power Supply 23■ DIN Universal Rail Clips 23■ Instrument Tags 23

know your power . . .because with knowledge comes control.

For expert technical help, contact your localAuthorized Representative or Authorized Distributor


PAGE

849 Independence Avenue ■ Mountain View, CA 94043 ■ Toll Free: 800/959-4014Phone: 650/940-7878 ■ Fax: 650/940-7880 ■ e-mail: [email protected] ■ www.NKtechnologies.com

IndustrialCurrentSensors

Do you have other needs?

Contact us for:■ Product Guide

■ Application Guide■ Power Transducers, CTs and PTs■ Current Transducers and Transmitters

■ Current Switches■ Current Fault Sensors

Do you have other needs?

IndustrialCurrentSensors

NK Technologies ■ 800/959-4014NK Technologies ■ 800/959-4014



ApplicationsVFD Controlled Loads

VFD output indicates how the motor and attached load are operating.

SCR Controlled LoadsAccurate measurement of phase angle fired or burst fired (time proportioned)SCRs. Current measurement gives faster response than temperaturemeasurement.

Switching Power Supplies and Electronic BallastsTrue RMS sensing is the most accurate way to measure power supply or ballastinput power.

True RMS AC Current Transducers

Features■ True RMS Output

True RMS technology is accurate ondistorted waveforms like VFD or SCRoutputs.

■ Jumper Selectable Ranges— Reduces inventory.— Eliminates zero and span pots.

■ Isolation— Output is magnetically isolated

from the input for safety.— Eliminates insertion loss

(voltage drop).

■ UL, CUL and CE ApprovalAccepted worldwide.

137.2A

Controller

Two Wire Installation is Fast and Easy

FieldSelectableRanges

True RMS Outputeven on VFDs or SCRs

LINE VFD

54.7Hz

M


ATR SeriesSelecting the right transducer:

VFD and SCR output waveforms arerough approximations of a sine wave.There are numerous spikes and dips ineach cycle. ATR transducers use amathematical algorithm called “TrueRMS,” which integrates the actualwaveform over time. The output is theamperage component of the true power(heating value) of the AC currentwaveform. True RMS is the only way toaccurately measure distorted ACwaveforms. Select ATR transducers fornonlinear loads or in “noisy” powerenvironments.

The current waveform of a typical linearload is a pure sine wave. AT transducersmeasure the peaks of these sine waves,then calculate the average amperage.This works well on constant speedlinear loads in a “clean” powerenvironment. Select AT transducers forstrictly linear loads on “clean” power.

‘ATR’ transducers from NK Technologies combine a currenttransformer and a True RMS signal conditioner into a single package.The ATR Series provides True RMS output on distorted waveformsfound on VFD or SCR outputs and on linear loads in “noisy” powerenvironments. Available in a solid or split core case.

ATR SeriesATR Series

Power SupplyDIN Rail AdapterInstrument Tags

AccessoriesPAGE 23

Accessories

DIN-2 adapters allow NK Technologiesswitches, transducers and ground faultsensors to be mounted on DIN rail.

SpecificationsCompatibility ■ “Top Hat” Type: 35mm x 15mm,

35mm x 7.5mm■ “G” Type: 32mm x 15mm

Material UL 94V-2 Rated thermoplasticTemp Range –40 to 212°F (–40 to 100°C)

Instrument Tags allow users to individually identify eachNK Technologies sensor in their system. IT Tags arepermanent and non conductive. Traditional stampedstainless steel tags present a safety hazard and are notrecommended for electrical sensors. Please provide a list oftag numbers with your Purchase Order.

SpecificationsDimensions 0.5" x 1.125"Characters 2 lines of 18 characters (8 point).

Spaces and dashes count as characters.

PAGE 2


Power SupplyPower Supply

SpecificationsInput 85–264VAC, 47-400HzDC Output 24VDC, 25W (1.05A)DC Regulation +/–0.2% (0.048VDC)DC Ripple 100mV (Peak-Peak)EMF Meets FCC Part 15J, Class BDimensions 5.1" x 3.85" x 1.5", 1.5 lb.

(13 x 9.8 x 3.8 cm, 700 gm)

Environmental 14 to 140°F (–10 to +60°C), 20–90% RHSafety UL Recognized, CE

PS series switchingpower suppliesprovide highlyregulated 24VDC forNK Technologiestransmitters and switches.

DIN Rail AdapterDIN Rail AdapterSensor and DINrail not includedin DIN-2 kit.

Instrument TagsInstrument Tags

ATR Series AccessoriesAccessories




2(+)1(–)Output

Range Jumper

(+)(–)24 VDC Power

(+)

(–)

Load(Controller, Meter, etc.)

2(+)1(–)Output

Range Jumper

4–20mA Option

0–5/10 VDC Option 1mΩ Recommended100kΩ Acceptable

PBR Series PowerBASE™ RelaysPBR Series PowerBASE™ Relays


SpecificationsOutput Signal 4–20mA, Loop-powered, True RMSOutput Limit 23mAAccuracy 0.8% FSResponse Time 600mS (to 90% step change)Frequency Range 10–400HzPower Supply 24VDC Nominal, 40VDC MaximumIsolation Voltage UL listed to 1,270VAC, tested to 5KVInput Ranges Field selectable from 0–200A (see Ordering

Information). Consult factory for custom ranges.Sensing Aperture ■ –FT Models: 0.75" (19mm) dia.

■ –SP Models: 0.85" (21.5mm) sq.Case UL 94V-0 Flammability ratedEnvironmental –4 to 122°F (–20 to 50°C),

0–95% RH, non-condensingListings UL 508 Industrial Control Equipment

(USA & Canada), CE

0 500250 1000750Total Loop Impedance (Ohms)

32

27

22

17

12Loop

Pow

er (

VDC)

Operating Range

Notes:■ Deadfront captive screw

terminals (–SP case).■ 12–22 AWG solid or stranded.■ Observe polarity.

Input Ranges MAXIMUMModel Range Continuous 6 Sec. 1 Sec. ATR0 2A 80A 125A 250A

5A 100A 125A 250A ATR1 10A 80A 125A 250A

20A 110A 150A 300A50A 175A 215A 400A

ATR2 100A 200A 300A 600A150A 300A 450A 800A200A 400A 500A 1,000A

Power Supply (4–20mA output only)VL = 12VDC + (RL × 0.020A)

where VL = Minimum Loop SupplyRL = Total Loop Resistance (Ohms)

ATR SeriesPAGE 3

ATR Series

1.93"49mm

2.18"55.4mm

0.6"15mm

0.931"23.7mm

2.433"61.8mm

3.53"89.7mm

1.506"38.3mm

3.08"78mm

1.5"39mm

0.125"3.2mm

0.75"19mm

dia.

0.967"24.56mm

0.17"4.5mm int. dia.Typical of 2

LEDPOT

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.72"18.3mm

0.52"13mm

0.19"4.5mm dia.Typical of 2

0.36"9.1mm

0.52"13mm

2.4"61mm

3.53"89.7mm

3.044"77.3mm

1.18"30mm

0.125"3.2mm


Example: ATR1-420-24L-SPTrue RMS AC current transducer, 10/20/50A ranges, 4–20mA output,24VDC loop-powered in a split core case.

Full ScaleRanges0 2 & 5A1 10, 20, 50A2 100, 150, 200A

Output Signal420 4–20mA

CaseFT Fixed Core, Top Term.SP Split Core

ATR

Ordering Information

Power Supply24L 24VDC

Loop-powered

PBR “PowerBASE™” Series are industrial-graderelays in a specially designed package. PBR relaysquick connect to NK Technologies top terminal ASand AT series current switches and transducers.This compact combination provides for addedfunction and flexibility.

PowerBASE™ Command Relays

AccessoriesPAGE 22

ApplicationsMotor Control

— Switches up to NEMA Size 5 starter (200HP motor).— Directly controls fractional HP loads.

Heaters and Lamp ControlEliminates contactors for loads to 10A.

Contact Rating10C 10A Form C

Coil Voltage (see Specifications)12U 12VAC/DC, Low Current24U 24VAC/DC, Low Current

Example: PBR-10C-24LPowerBASE™ Relay with 10A contacts and universal 24-volt coil.

Ordering InformationPBR

LINE

ControllerDO

Digital Out

FAN ON

Starter

DIDigital

In

AS Current Switch orAT Current Transducer

PowerBase™Relay10 amp Form C (SPDT)

Eliminates Relay PanelSaves Labor and Materials

M

Accessories

1 0 C

Connections

4 2 0 2 4 L

FT Case

SP Case

SpecificationsContacts ■ 10A Resistive, 7.2A Inductive @ 240VAC

■ 1/3HP @ 240VAC■ 10A @ 30VDC

Coils ■ 12L: 12VAC/DC +/–30%, 18.5mA■ 24L: 24VAC/DC+/–30%, 10mA

Dimensions 2.65"W x 1.5"D x 0.9"H, 4.5" BaseCase UL 94 Flammability ratedCompatibility ■ Solid Core Sensors: All “FT” case models

■ Split Core Sensors: All “SP” case models

Environmental –4 to 122°F (20 to 60°C), 0-95% RH, non-condensingListings UL 508 Industrial Control Equipment

(USA & Canada), CE

Features■ PowerBASE™ Relay and Current Sensor combo

— Acts as an ‘Interposing Relay’.—␣I solates controller from line voltage.

■ Cuts Installation Costs— Installs as one item.—␣Cuts electri cian’s labor.— Eliminates need for relay panel.

■ Assembly Options— Factory assembled for convenience.— Field assembled for flexibility.


AccessoriesAccessories




Connections

Notes:■ Pressure plate screw terminals.■ 12–22 AWG solid or stranded.■ Field adjustable setpoint.

Example: DS1-SDT-24UDS current switch, low range with SPDT relay contacts and 24VAC/DCpower supply.

Ordering Information543

Setpoint

21Power

Power Supply24 VAC/DC

Isolated Relay Output(Shown De-Energized)

Isolated Solid State Output(Shown De-Energized)

43

SetpointG R R

SpecificationsOutput Isolated dry contactOutput Rating ■ Solid State: 0.2A @ 240VAC/DC

(N.O. Only)■ Relay: 5.0A @ 240VAC, 5.0A @ 30VDC (SPDT)

Off State Leakage NoneResponse Time ■ 100mS (10% above Setpoint)

■ 20mS (100% above Setpoint)Setpoint Range 4–20, 10–50 and 15–100A (DC)

Jumper select (derate by √2 for AC)Hysteresis 5% of SetpointOverload ■ 1,000% of range for 5 seconds

■ 200% of range indefinitelyIsolation Voltage 3kVFrequency Range DC to 400HzSensing Aperture 0.75" (19mm) dia.Power Supply 20–28VDC or VACPower Consumption 10VACase UL 94V-0 Flammability ratedEnvironmental ■ –4 to 122°F (–20 to 50°C),

0–95% RH, non-condensing■ –40 to 140°F (–40 to 60°C) (Solid State Output Only)

Setpoint Range3 4–20, 10–50 and

15–100A, Jumper SelectC Custom (consult factory)

Ouput TypeSDT SPDT Relay (Form C)NOU Solid State N.O. AC/DC

DS

Power Supply24U +24VAC/DC

DC Current Switches

DS3 SeriesPAGE 21

DS3 Series

2.5"63.5mm

0.75"19mm

1.5"38.1mm

1.01"25.5mm

1.510"38.4mm

1.055"27mm

LED

LED

Range Jumper

POT

3.375"85.7mm

0.75"19mmdia.

0.5"12.7mm

3.875"98.4mm


0.125"3.2mm

TIME

AMPS

100%

0%

ContactDe-energized

ContactEnergized

FIELD ADJUSTABLE SETPOINT

Adaptive Hysteresis:5% of Setpoint

Output Operation

‘AT’ Current Transducers from NK Technologies combinea current transformer and signal conditioner into a single

package. The AT Series has jumper selected currentinput ranges and industry standard

4–20mA, 0–5VDC or 0-10VDCoutputs. The AT Series isdesigned for application on‘linear’ or sinusoidal AC loads.Available in a split core case ortwo types of solid core cases.

ApplicationsAutomation Systems

Analog current reading for remote monitoring and software alarms.

Data LoggersSelf-powered transducer does not drain data logger batteries.

Panel MetersSimple connection displays power consumption.

AT Series

LINE

M

137.2A

ControllerFieldSelectableRanges

Two Wire Installation is Fast and Easy

Safer than Shunts

AC Current Transducers0–5/10VDC or 4–20mA Output

AT Series

AT Current Transducers0–5/10VDC or 4–20mA Output

AT SeriesPAGE 4AT Series

AT Current Transducers0–5/10VDC or 4–20mA Output Features

■ AccurateFactory matched and calibratedsingle piece transducer is moreaccurate than traditional two-piecefield installed solutions.

■ Average Responding“Average Responding” algorithmgives a RMS output on pure sinewaves. Perfect for constant speed(linear) loads.

■ Jumper Selectable Ranges— Reduces inventory.— Eliminates zero and span pots.



(voltage drop).


Input Ranges MAXIMUMModel Range Continuous 6 Sec. 1 Sec. AT0 2A 80A 60A 100A

5A 100A 124A 250A AT1 10A 80A 125A 250A

20A 110A 150A 300A50A 175A 215A 400A

AT2 100A 200A 300A 600A150A 300A 450A 800A200A 400A 500A 1,000A

2 4 U




2(+)1(–)Output

Range Jumper


(+)

(–)


2(+)1(–)Output

Range Jumper

4–20mA Option

0–5/10 VDC Option 1mΩ Recommended100kΩ Acceptable

Connections

Notes: ■ Captive screw terminals.■ 12–22 AWG solid or stranded.■ Observe polarity.

LEDPOT

0.47"12mm


1.650"27mm

0.125"3.2mm

0.55"14mm dia.

3.3"83.8mm

2.75"69.9mm

0.92"23.4mm

1.2"31mm

Jumper

1.75"45mm

0.95"24.1mm

2.18"55.4mm

1.93"49mm

2.18"55.4mm

0.6"15mm

0.931"23.7mm

2.433"61.8mm

3.53"89.7mm

1.506"38.3mm

3.08"78mm

1.5"39mm

0.125"3.2mm

0.75"19mm

dia.

0.967"24.56mm


LEDPOT

AT SeriesPAGE 5

AT Series

AC Current Transducers0–5/10VDC or 4–20mA Output

ApplicationsElectric Heating Elements

Instant indication of heater status.

Power SuppliesSignals over-current before equipment fails.

Machine OperationInstant status of motors, lamps and other loads.

Telecom SitesMonitors battery output.

‘DS3’ Current Switches from NK Technologies combine aHall effect sensor, signal conditioner and a limit alarm into asingle package. The DS3 Series has three jumper selectedcurrent input ranges and frequency response from DC to400Hz. Available in a top terminal solid core case witheither a relay output or a universal solid state output.

Features■ Compact, One-piece Design

Fits in crowded motor starters, power supplies and controlpanels.

■ Input IsolationMuch safer than shunt/relay combinations.

■ Output InstallationIsolated output greatly simplifies wiring.

■ ToughDesigned to handle harsh industrial environments.

■ Adaptive Hysteresis— Hysteresis is 5% of setpoint.— Allows closer control than fixed hysteresis.

■ ReliableSolid state design.

■ Built-in Mounting BracketSolid, secure mounting that inspectors want to see.

DC Current Switches

DS3 Series

DC Current Switches

Load ON

Controller

Isolated output simplifies wiring.

24VAC or VDC

Isolated input is safe.

FieldAdjustableSetpoint

To1,200VDC

DC Current Switches

DS3 SeriesPAGE 20

DS3 Series

DS3 Series

Specifications–005 Models –010 Models –420 Models

Output Signal 0–5VDC 0–10VDC 4–20mAOutput Limit 10VDC 15VDC 40mAAccuracy 1.0% FS 1.0% FS 0.5% FSResponse Time 100mS 100mS 300mS(10–90% step change)Frequency Range 50–60Hz 50–60Hz 20–100Hz*Other Frequencies Special calibration available for any frequency from 10–400Hz*Power Supply Self-powered Self-powered 12–40VDC,

Loop-poweredLoading 1mΩ minimum for rated accuracy See “Power Supply”

100KΩ add 1.3% error belowIsolation Voltage UL listed to 1,270VAC, tested to 5KVInput Ranges Field Selectable Ranges from 0–200A (see Ordering

Information). Custom ranges available, consult factory.Sensing Aperture ■ –FF Case : 0.55" (14mm) dia.

■ –FT Case : 0.75" (19mm) dia.■ –SP Case: 0.85" (21.5mm) sq.

Case UL 94V-0 flammability ratedEnvironmental –4 to 122°F (–20 to 50°C), 0–95% RH, non-condensingListings UL 508 Industrial Control Equipment (USA & Canada), CE*For sinusoidal waveforms only. Select ATR Transducersfor distorted waveforms.

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.52"13mm

0.22"5.7mm

0.52"13mm

3.53"89.7mm


1.190"30.2mm

0.125"3.2mm

2.4"61mm

3.044"77.3mm

Ordering InformationExample: AT1-005-000-SPAC current transducer, 10/20/50A range, self-powered with a 0–5VDCoutput in a split core case.

Full ScaleRanges0 2 & 5A1 10, 20, 50A2 100, 150, 200A

Output Signal420 4–20mA005 0-5VDC010 0-10VDC

Power Supply24L 24VDC Loop-powered

(4–20mA output ONLY)000 Self-powered (0–5/

0–10VDC output ONLY)

AT

CaseFF Fixed Core,

Front Term.FT Fixed Core,

Top Term.SP Split Core

FT Case

SP Case

FF Case

Power Supply (4–20mA output only)


25

20

15

10

5Loop

Pow

er (

VDC)

Operating Range

VL = 12VDC + (RL × 0.020A)where VL = Minimum Loop Supply

RL = Total Loop Resistance (Ohms)




Normally Energized Models (–FS Option)Protection from faultsand loss ofcontrol power. No Power No Fault Fault

N.C. Normally Closed Closed OPEN Closed

N.O. Normally Open Open CLOSED Open

Normally Deenergized Models (–NF Option)Protection from faultsonly when control poweris applied. No Power No Fault Fault

N.C. Normally Closed Closed CLOSED Open

N.O. Normally Open Open OPEN Closed

Latching (–LA Option)Latching models initially power up in the Reset position.If there is a fault or the test button is pressed, theoutput switches and is latched. The output will remainlatched after the fault is cleared, even if control power isremoved. To reset the output, apply a momentary contactacross the “Reset” terminals (6–7).

Output TableControl Power Applied

Control Power Applied

SpecificationsSetpoint Range■ “Single-Set” Models Factory adjusted and sealed

(field adjustment possible)■ AG1: 5–100mA, specify when ordering■ AG2: 80–950mA, specify when ordering

■ “Tri-Set” Models 5, 10 & 30mA jumper selectOutput Isolated dry contact (solid state or relay,

see Ordering Information)Output Rating ■ Solid State AC Switch: 1A @ 240VAC

■ Solid State DC Switch: 0.15A 30VDC■ Relay: 0.5A @ 125VAC, 2A @VDC

Off State Leakage NoneResponse Time ■ 200mS @ 5% above setpoint

■ 60mS @ 50% above setpoint■ 15mS @ 500% above setpoint

Isolation Voltage Up to 1,250VAC (monitored circuit)Frequency Range 50–400Hz (monitored circuit)Sensing Aperture 0.75" (19mm) dia., up to 4" (100mm) dia.

available, consult factory.Power Supply ■ 120, 200, 208, 220, 240VAC, 50-400Hz,

operates from 55–110% of nominal voltage■ 24VAC & 24VDC, operates +/–10%■ Green LED = power (all models)

Case UL 94V-O Flammability ratedEnvironmental 5 to 158°F (–15 to 70°C),

0-95% RH, non-condensingSafety UL 1053, Class 1 Recognized, CE**Most option combinations are UL recognized.

Ground Fault Sensors

AG SeriesPAGE 19

AG Series

‘AT/ATR 3 & 4’ transducers from NK Technologiescombine a high capacity current transformer and asignal conditioner into a single package. The ATversion is Average Responding for use on linear(sinusoidal) loads. The ATR version is True RMS for useon distorted waveforms found in VFD or SCR outputs.Available in a solid or split core case.

ApplicationsLarge Pumps

Detect dry run electronically.

GenerationMeasure the output of generators.

Electric Heating Elements— Monitors heater load.— Faster response than

temperature sensors.

High Current Transducers


Features■ Large Aperture

Accommodates large conductors orwire bundles.

■ Select the Right OutputTrue RMS technology is accurate ondistorted waveforms like VFD or SCRoutputs.Average Responding—for linear,sinusoidal waveforms

■ Three Jumper Selectable Ranges— Reduces inventory.— Eliminates zero and span pots.

■ IsolationMagnetic isolation protects installersand systems.

■ Easy InstallationSingle piece with integral mountingbrackets makes for a simple, solidinstallation.


ATR 3 & 4 SeriesPAGE 6

Selecting the right transducer:The current waveform of a typical linearload is a pure sine wave. AT transducersmeasure the peaks of these sine waves,then calculate the average amperage.This works well on constant speedlinear loads in a “clean” powerenvironment. Select AT transducers forstrictly linear loads on “clean” power.

VFD and SCR output waveforms arerough approximations of a sine wave.There are numerous spikes and dips ineach cycle. ATR Transducers use amathematical algorithm called “TrueRMS,” which integrates the actualwaveform over time. The output is theamperage component of the true power(heating value) of the AC currentwaveform. True RMS is the only way toaccurately measure distorted ACwaveforms. Select ATR transducers fornonlinear loads on “noisy” power.


ATR 3 & 4 Series

1837.2A

Controller

Single Piece DesignCuts Panel Labor

FieldSelectableRangesTrue RMS Output

works on VFDs

LINE

M

AT/ATR 3 & 4 SeriesAT/ATR 3 & 4 Series

Shown withsolid core case.

Example: AG1-NOAC-120-005-FSGround fault sensor with normally open solid state output, 120VAC power supply, 5mA setpoint, fail safe version.

Power Supply24U 24VAC/DC120 120VAC200 200VAC208 208VAC240 240VAC

Output TypeNCAC Normally Closed 1A @ 240VACNOAC Normally Open 1 A @ 240VACNCDC Normally Closed 0.15A @ 30VDCNODC Normally Open 0.15A @ 30VDCNCR1 Normally Closed Relay,

0.5A @ 125VAC, 2A @ 30VDCNOR1 Normally Open Relay,

0.5A @ 125VAC, 2A @ 30VDCCR1 Form C Relay (SPDT) 0.5A @ 125VAC, 2A @ 30VDC

(available only with LA Latching Option)

SetpointTR3 Tri-Set Models005 Factory Adjusted

Setpoint in mA950

AG


Setpoint Range1 5–100mA, Adjustable2 80–950mA, Adjustable3 5, 10 & 30mA, Jumper Select

OptionsFS Normally EnergizedNF Normally DeenergizedLA Latching (available only

with CR1 Output Option)




2(+)1(–)OutputRange Switch

MidLow High


(+)

(–)



SpecificationsOutput Signal 4–20mA, Loop-poweredOutput Limit 23mAAccuracy 1.0% FS accuracy, True RMSMeasurement True RMS or Average Responding

(see Ordering Information)Response Time 500mS (to 90% of step change)Frequency Range ■ ATR: 10–400Hz

■ AT: 50–60Hz, SinusoidalPower Supply 24VDC Nominal; 40VDC MaximumIsolation Voltage 600VACInput Ranges ■ AT/ATR3: 375, 500, 750A

■ AT/ATR4: 1000, 1333, 2000ASensing Aperture 3.0" (76mm) dia.Case UL 94 Flammability ratedEnvironmental –4 to 122°F (–20 to 50°C),


(USA & Canada), CE

Connections


terminals.■ 12–22 AWG solid or stranded.■ Observe polarity.

ATR 3 & 4 SeriesHigh Current Transducers

Example: ATR4-420-24L-FLTrue RMS AC current transducer, 24VDC powered with a 4–20mAoutput, 375, 500 and 750 amp range in a fixed core case.*

MeasurementR True RMS— Average

Responding(Blank)

Output Signal420 4–20mA

Case*FL Fixed Core

AT


Power Supply24L 24VDC

Loop-powered

ATR 3 & 4 SeriesPAGE 7

2.5"63mm

2.75"70mm

0.75"19mm

1.5"38mm

3.4"86mm

1.0"25mm 3.85"

98mm

0.75"19mm

dia.

1.1"28mm


TESTFaultFault

Setpoint

Setpoint Jumper Location for Tri-Set Models

0.125"3.2mm

2.5"63.5mm

0.11"2.8mm

0.75"19mm

1.5"38.1mm

1.510"38.4mm

3.375"85.7mm

3.875"98.4mm

0.75"19mmdia.

1.055"27mm

0.177"4.5mm int. dia.Typical of 2LED LED

POT

2.895"73.5mm

TEST

Setpoint Jumper Location for Tri-Set Models

0.125"3.2mm

AG Series continuedPAGE 18

AG Series continued


ConnectionsOutputPower

Jumper Location for Tri-Set Models

TESTG R


TEST

G RPower Status

Setpoint

1 2 3 54

Power Output Reset

6 7 Typical of Latching Version

Typical of Auto-reset Version

Notes:■ Terminals are #6 screws.■ Connections are polarity sensitive.■ Adjustable Setpoint version has setpoint adjust

but no jumper.

4.215"107mm

0.75"19mm

3.375"85.7mm

3.375"85.7mm

1.463"37.2mm

0.825"20.95mm

3.0"76mmdia.


32

27

22

17

12Loop

Pow

er (

VDC)

Operating Range

Power SupplyVL = 12VDC + (RL × 0.020A)

where VL = Minimum Loop SupplyRL = Total Loop Resistance (Ohms)

FL Case

Full ScaleRanges3 375, 500,

750A4 1000, 1333,

2000A*Split core version available in the Spring of 2000.

F L2 4 L4 2 0

OutputPower


TESTG R


TEST

G RPower Status

Setpoint

1 2 3 54

Power Output Reset

6 7 Typical of Latching Version

Typical of Auto-reset Version

Notes:■ Dead front terminals.■ Connections are not polarity sensitive.

Latching

FS/NF Option

AG Series continued

AG Series continued

Latching versionshown.




DT Series

DC Current Transducers0–3/5/10VDC or 4–20mA Output

DT SeriesDT Series

ApplicationsBattery Banks

— Monitors load current.— Monitors charging current.— Verifies operation.

TransportationMeasures traction power orauxiliary loads.

Electric Heating ElementsFaster response thantemperature sensors.

137.2A

Controller

Industry Standard Outputs

FieldSelectableRanges

AC or DC Power

To1,200VDC

Split Core Cuts Labor

DC Current Transducers0–3/5/10VDC and 4–20mA Output

DT Series

PAGE 8

ApplicationsPersonnel Protection (typically 5mA)

Senses low fault currents and alarms to shut power before injury occurs.

Equipment Protection (typically 30mA)When personal protection is not an issue, select a higher setpoint to protectequipment or product

Regulatory ApprovalMeet requirements by industry groups and governments for Ground FaultProtection.

Operating Principal: Under normalconditions, the current in the hot legof a two-wire load is equal in strengthbut opposite in sign to the current inthe neutral leg. These two currentscreate magnetic fields that are alsoequal but opposite. When the wires arenext to each other, the fields cancel,producing a “Zero Sum Current”. If anycurrent leaks to ground from one wire(Ground Fault), the two currentsbecome imbalanced and the result is anet magnetic flux or field. AG Seriesground fault sensors monitor this fieldand alarm when leakage rises abovesetpoint. This concept applies togrounded 3-phase delta and wye systems.




AG Series

Features■ Operation to Match Your

Application:Latching—For controllingcontactors.Auto-Reset—For controllingshunt trip breakers.

■ Setpoint Options to Match YourNeeds:Tri-Set—Field select 5, 10 or 30mA.Fast and convenient. (AG3 only)Single-Set—Factory adjustedsetpoint. Specify 5–100mA (AG1) or80–950mA (AG2) when ordering.

■ Compatible with StandardEquipmentWorks on 1φ or 3φ power. Controlsstandard shunt trip breakers orcontactors. Tie into EmergencyCircuits (EMO/EPO).

■ IsolatedMagnetically isolated from themonitored circuit and control power

■ UL and CE ApprovalAccepted worldwide.

Power

LINE

LOAD

Output

Power Interrupt

Easy to Apply on 1φ or 3φ Circuits to 1,250 VAC Protects your people,

products and processes.

AG SeriesPAGE 17

AG Series‘AG’ Series sensors fromNK Technologies protectpeople, products andprocesses from groundfaults by monitoring allcurrent-carrying wires ingrounded single or 3-phase systems.

AG Series

DC Current Transducers0–3/5/10VDC or 4–20mA Output

‘DT’ Current Transducers from NK Technologies combine aHall effect sensor and signal conditioner into a single package. TheDT Series has jumper selectable current input ranges and industrystandard 0–20mA, 4–20mA, 0–3VDC, 0–5VDC or 0–10VDC outputs.Available in a split core package.

Features■ Three Jumper Selectable Ranges

— Reduces inventory.— Eliminates zero and span pots.



(voltage drop).

■ Internal Power Regulation— Works well, even with unregulated

power.— Cuts installation costs.

■ Easy InstallationSplit core design with built-inmounting brackets makes installationa snap.

Auto-reset versionshown.




Multi-pole Current Operated Switches

ApplicationsPump Control

Individually adjustable indication of overload (jam) and underload (suction loss).Dual Alarm

Easy setup for dual level alarms.

Features■ Multi-pole Output

Monitor two setpoints with onesensor.

■ Self-poweredCuts installation and operating costs.

■ Easily Adjustable SetpointSpeeds startup.

■ Solid or Split Core CaseChoose the right version for eachinstallation.

■ Built-in Mounting BracketProvides the solid installationinspectors want.


PAGE 16AS3M SeriesAS3M Series

AS3M-CCDC-FTLINE

1 C 2

Over/Under Current Alarm with Two Inputs

Over/Under Current Alarm with One Input (Jumper Provides Hard-Wired"OR" Function)

+ +

156.2A

Controller

LINE

1 C 2Multi-pole Current Switch

AC Power Leg to Motor

+ +

156.2A

Controller

MotorCurrent

HighSetpoint

Low Setpoint

AMPS

TIME

Starting Inrush Current Normal Operation

UnderCurrent Alarm

OverCurrentAlarm

Contact Truth

80% 120% Setpoint, % FLA

Over Amps

Normal AmpsWindow

Under Amps

Power OFF

#1(N.C.)

#2(N.O.)

CONTACT

DESCRIPTION

AS3M-CCDC-FT

Example: AS3M-CCDC-FFAdjustable multipole current switch, “Super”Form C output, fixed core with front terminals.

Output RatingAADC Dual Normally Open,

Individually Adjustable,0.15A @ 30VDC

CCDC “Super” Form C SPDT,Individually Adjustable,0.15A @ 30VDC

Case StyleFF Fixed Core,

Front Term.

AS3M


AS3M Series


AS3M Series‘AS3M’ Current Switches are a multi-pole version of the popularAS3 Series. The AS3M Series combines a current transformer, signalconditioner and two limit alarms into a single package. The AS3Series has three jumper-selected current input ranges, solid-stateDC output and a wide frequency range. Available in a front terminalsolid core case.

SpecificationsSee page 15, “AS3 Series” specificationsand dimensional drawings.


Connections

Output Polarity

DT SeriesPAGE 9

DT Series

DC Current Transducers0–3/5/10VDC and 4–20mA Output

SpecificationsOutput Signal 0-20mA, 4-20mA, 0-3VDC, 0-5VDC or 0-10VDCOutput Limit ■ 0–20mA, 4–20mA: 44mA

■ 0–3VDC: 6.5VDC■ 0–5VDC: 13VDC■ 0–10VDC: 26VDC

Accuracy 1.0% FSRepeatability 1.0% FSResponse Time 100mS (to 90% of step change)Frequency Range DCPower Supply 20–50VDC, 22–38VAC. Power input and

output signal are not isolated.Power Consumption 2VALoading ■ 0–20mA, 4–20mA: 650Ω max.

■ 0–3/5/10VDC: 250kΩ for rated accuracy; 25kΩ, add 1% error.

Isolation Voltage 3kV (monitored line to output)Linearity 0.75% FSCurrent Ranges Field Selectable Ranges from 0–400A

(see Ordering Information)Sensing Aperture 0.85" (21.5mm) sq.Case UL 94V-0 Flammability ratedEnvironmental –4 to 122°F (–20 to 50°C),

0–95% RH, non-condensing

100

50

0

– Amps + Amps0

Output (%)

Unipolar (Magnitiude

Only)

4(+)3(–)2(+)1(–)Power Output

20–50 VDC or 22–38 VAC

Output loop is powered byDT Transducer. No loop power supply required.

Range Jumper


terminals.■ 12–22 AWG solid or stranded.■ Observe polarity.

F F Output Polarity*U Unipolar

Example: DT2-420-24U-USplit core DC/DC current switch, mid range, 24VAC/DC powered with a4–20mA output that is unipolar.


Full Scale Range1 50, 75, 100A2 100, 150, 200A3 150, 225, 300A4 200, 300, 400AC Custom Range

Output Signal020 0–20mA420 4–20mA003 0–3VDC005 0–5VDC010 0–10VDC

DT

Power Supply24U +24VAC/DC

U2 4 U

*Bipolar version available in mid 2000.

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.72"18.3mm

0.52"13mm

0.19"4.5mm dia.Typical of 2

0.36"9.1mm

0.52"13mm

2.4"61mm

3.53"89.7mm

3.044"77.3mm

1.18"30mm

0.125"3.2mm




Output

Setpoint

Range JumperNoneLOW MID HIGH

Typical of NOAC and NOAC-15

NCAC and NCAC-15 Similar

Typical of AS3M-CCDC (See page 16)

Typical of AS3M-AADC (See page 16)

SmartLEDR

Output

Setpoint

Range JumperNoneLOW MID HIGH SmartLED

R

Output

Setpoint

Range JumperNoneLOW MID HIGH SmartLED

R

SpecificationsPower Supply None — Self-poweredOutput Isolated Solid State SwitchOutput Rating 1.0A @ 240VAC (Standard Units),

15A @ 120VAC, 10A @ 240VAC (–15 Option)Off State Leakage ■ NOAC: NONE,

■ NCAC: 2.5mAResponse Time 0.04 to 0.120 SecondSetpoint Range ■ Fixed Core: 1–6, 6–40 & 40–175A

■ Split Core: 1.5–6, 6–40 & 40–200AHysteresis 5% of SetpointOverload ■ MODEL CONTINUOUS 6 SEC 1 SEC

■ 1–6A 150A 400A 600A■ 6–40A 150A 500A 800A■ 40–175A 210A 800A 1,200A

Isolation Voltage UL listed to 1,270VAC, tested to 5,000VACFrequency Range 6–100Hz, works on VFDsSensing Aperture ■ –FF Case: 0.55" (14mm) dia.

■ –SP Case: 0.85" (21.5mm) sq.Case UL 94V-O Flammability RatedEnvironmental –58 to 149°F (–50 to 65°C),


(USA & Canada), CE

MULTI-POLE VERSION (SEE PAGE 16 FOR DESCRIPTION):Switch Rating 0.15A @ 30VDCOff State Leakage ■ AADC: NONE

■ CCDC: 0.3mA (NC terminal only)

Connections

Example: AS3-NOAC-SP-NLAdjustable AC current switch, split core without indicating LED.

Output RatingNCAC Normally Closed, 1A @ 240VACNOAC Normally Open, 1A @ 240VAC

Case StyleFF Fixed Core,

Front Term.SP Split Core

AS3


OptionsNL No LED15 15A @ 120VAC

outputNotes:■ Terminals are #6 screws.■ DC contacts are polarity sensitive.

LEDPOT

0.47"12mm


1.650"27mm

0.125"3.2mm

0.55"14mm dia.

3.3"83.8mm

2.75"69.9mm

0.92"23.4mm

1.2"31mm

AS3M Only

1.75"45mm

0.95"24.1mm

2.18"55.4mm

AS3 SeriesPAGE 15

AS3 SeriesCurrent Operated Switches

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.52"13mm

0.22"5.7mm

0.52"13mm

3.53"89.7mm


1.190"30.2mm

0.125"3.2mm

2.4"61mm

3.044"77.3mm

ApplicationsElectronic Proof Of Flow

—␣No need f or pipe or duct penetrations.— More reliable than electromechanical pressure or flow switches.

Conveyors— Detects jams and overloads— Interlocks multiple conveyor sections

Lighting CircuitsEasier to install and more accurate than photocells.

Electric HeatersFaster response than temperature sensors.

‘AS1’ Current Switches fromNK Technologies combine acurrent transformer, signalconditioner and limit alarm intoa single package. The AS1 serieshas an extended current inputrange, universal solid-stateoutputs and a wide frequencyresponse. Available in a splitcore case or two styles of solidcore cases.

Features■ Universal Output

—Solid state switch N.C. or N.O.works on AC or DC to 240VAC.

—Compatible with any automationsystem.

—Reduces inventory, installationand engineering costs.


■ Easily Adjustable SetpointSpeeds startup




Current Operated SwitchesCurrent Operated Switches

Current Operated Switches

AS1 SeriesAS1 Series

AS1 SeriesAS1 SeriesPAGE 10

LINE

Controller

Starter

DODigital

Out

DIDigital

In

FAN ON

NOT REQUIRED!

2nd Conduit, Wire, DP Switch, Pressure Tubing, Pipe Fitter, etc.

M

PerfectMatch for

AutomationSystems

AMPS

TIME

StartupInrush

Normal Operation Belt or Coupling Breaks

AMPS

TIME

StartupInrush

Normal Operation

Jam

MOTOR OFF

Overload or JamUnderload or Status

FF Case

SP Case




Current Operated SwitchesCurrent Operated Switches

ApplicationsElectronic Proof of Flow

— No need for pipe or duct penetrations.— More reliable than electro-mechanical pressure or flow switches.

Conveyors— Detects jams and overloads.— Interlocks multiple conveyor sections.

Lighting CircuitsEasier to install and more accurate than photocells.

Electric HeatersFaster response than temperature sensors.

AS3 Series ‘AS3’ Current Switches fromNK Technologies combine acurrent transformer, signalconditioner and a limit alarminto a single package.The AS3 Series has three jumperselected current input ranges,solid-state AC output and a widefrequency range. Available in asplit core or front terminal solidcore case.

AS3 SeriesAS3 SeriesPAGE 14AS3 SeriesCurrent Operated Switches

Greatwith

Relay LogicControl

LINE

Controller

Starter

DODigital

Out

DIDigital

In

FAN ON

M

Features■ Choice of Outputs

— Solid state switch N.C. or N.O.— 1A @ 240VAC.— 15A @ 120VAC.


■ Adjustable SetpointSpeeds startup.




AS3 Series

Example: AS1-NOU-SPAdjustable AC current switch, split core, with indicating LED.

Output RatingNOU Normally

OpenNCU Normally

Closed

Case StyleFF Fixed Core, Front Term.FT Fixed Core, Top Term.SP Split Core

AS1


Connections

Notes:■ Terminals are #6 screws.■ Normally open contacts shown (NOU).■ Normally closed contacts similar (NCU).

2Output1Setpoint

Typical ofModels with LED

SmartLED

2Output1

Typical ofGo/No-Go Models

R

Current Operated Switches

SpecificationsPower Supply None — Self-poweredOutput Magnetically Isolated Solid-State SwitchOutput Rating ■ N.O. Version: 0.2A @ 240VAC or VDC

■ N.C. Version: 0.2A @ 130VAC or VDC■ Not polarity sensitive

Off State Leakage NoneResponse Time 0.120 SecondSetpoint Range ■ Fixed Core: 1–150A

■ Split Core: 1.5–150AHysteresis 5% of SetpointOverload ■ MODEL CONTINUOUS 6 SEC 1 SEC

■ –GO 250A 500A 1,000A (NOU)■ –GO 150A 400A 1,000A (NCU)■ All Other 150A 400A 1,000A

Isolation Voltage UL Listed to 1,270VAC, tested to 5,000VACFrequency Range 6–100HzSensing Aperture ■ –FF Case : 0.55" (14mm) dia.

■ –FT Case : 0.75" (19mm) dia.■ –SP Case: 0.85" (21.5mm) sq.

Case UL 94V-O Flammability ratedEnvironmental –58 to 149°F (–50 to 65°C),


(USA & Canada), CE

1.93"49mm

2.18"55.4mm

0.6"15mm

0.931"23.7mm

2.433"61.8mm

3.53"89.7mm

1.506"38.3mm

3.08"78mm

1.5"39mm

0.125"3.2mm

0.75"19mm

dia.

0.967"24.56mm


LEDPOT

OptionsGO Go/No-Go Version

(Fixed Setpoint)NL No LED— With LED (Blank)

LEDPOT

0.47"12mm


1.650"27mm

0.125"3.2mm

0.55"14mm dia.

3.3"83.8mm

2.75"69.9mm

0.92"23.4mm

1.2"31mm

Jumper

1.75"45mm

0.95"24.1mm

2.18"55.4mm

AS1 SeriesAS1 SeriesPAGE 11

FT Case

FF Case

AMPS

TIME

StartupInrush

Normal Operation Belt or Coupling Breaks

AMPS

TIME

StartupInrush

Normal Operation

Jam

MOTOR OFF

Overload or JamUnderload or Status

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.52"13mm

0.22"5.7mm

0.52"13mm

3.53"89.7mm


1.190"30.2mm

0.125"3.2mm

2.4"61mm

3.044"77.3mm SP Case




ASM Series

ApplicationsConveyors (–OL option)

— Detects jams and overloads.— Interlocks multiple conveyor

sections.

Electronic Proof of Flow (–UL option)— No need for pipe or duct

penetrations.— More reliable than electro-

mechanical pressure or flow switches

Lighting or Heating Circuits(–UL option)Fast and easy installation.

Pump Protection (–OU option)Provides overload (jams) andunderload (suction loss) indication.

Self-Calibrating Current Switches

‘ASM’ Current Switches fromNK Technologies combine acurrent transformer, signalconditioner and self-calibratinglimit alarm into a single package.The ASM Series has an extendedcurrent input range, universalsolid-state outputs and a widefrequency response. Available ina split core or top terminal solidcore case.

OperationChoose the right operating type foryour application:

Features■ Self Calibrating Switch

Speeds startup.

■ Self-poweredCuts installation costs.

■ Choose the Operating Style thatMatches your Application— Status alarms on underload,

proving that equipment isrunning properly.

— Overload protects against jamsand blockages.

— Operating window provides bothstatus and overload in a singledevice.

■ Universal OutputAC or DC switching meanscompatibility with any automationsystem.

■ CompactFits in starters and panels.


TIME

AMPS

Overload Trip

Jam or Blockage

Broken Belt or Coupling

Operating Load

Underload Trip

+15%

–15%

TIME

AMPS

Overload Trip

Jam or Blockage

Operating Load+15%

TIME

AMPS

Broken Belt or Coupling

Operating Load

Underload Trip–15%


ASM SeriesASM Series

ASM Series


Status Monitoring (–UL option)proves operation.

Overload Monitoring (–OL option)protects equipment from jams and stalls.

Operating Window (–OU option)combines Status Monitoring andOverload Monitoring in one device.

SpecificationsPower Supply None — Self-poweredOutput Magnetically Isolated Solid-State SwitchOutput Rating ■ N.O. Version: 0.2 A @ 240VAC or VDC

■ N.C. Version: 0.2 A @ 130VAC or VDC■ Not polarity sensitive

Off State Leakage NoneResponse Time 0.2 SecondSetpoint Range ■ 1.5–150A (Fixed Core)

■ 2.8–150A (Split Core)Setpoint ■ Overload: +15% of Load (–OL)

■ Underload: –15% of Load (–UL)■ Operating Window: +/–15% of Setpoint

Hysteresis 5% of SetpointOverload MODEL CONTINUOUS 6 SEC 1 SEC

All 150A 500A 1,000AIsolation Voltage UL Listed to 1,270VAC, tested to 5,000VACFrequency Range 6–100HzSensing Aperture ■ –FT Case: 0.75" (19 mm) dia.

■ –SP Case: 0.85" (21.5mm) sq.Case UL 94V-O Flammability ratedEnvironmental –58 to 149°F (–50 to 65°C),


(USA & Canada), CE

Connections

1.93"49mm

2.18"55.4mm

0.6"15mm

0.931"23.7mm

2.433"61.8mm

3.53"89.7mm

1.506"38.3mm

3.08"78mm

1.5"39mm

0.125"3.2mm

0.75"19mm

dia.

0.967"24.56mm


LEDPOT

OutputCLR RUN Calib/

Alarm

R

ContactR

Notes:■ Terminals are #6 screws.■ Smart LED standard.■ NOU shown, NCU similar.

Example: ASM-NOU-OL-SPAdjustable universal AC current switch, normally open,self-calibrating overload operation in a split core case.

Output RatingNOU Normally OpenNCU Normally Closed

OperationOL OverloadUL Underload (Status)OU Over/Underload

(Operating Window)

ASM



ASM SeriesPAGE 13

ASM Series

Case StyleFT Fixed Core, Top Term.SP Split Core

PAGE 12

FT Case

2.25"57.2mm

2.4"61mm

0.854"21.7mm

0.857"21.7mm

0.52"13mm

0.22"5.7mm

0.52"13mm

3.53"89.7mm


1.190"30.2mm

0.125"3.2mm

2.4"61mm

3.044"77.3mm SP Case

C O N T E N T S Current Sensors - Coulton · C O N T E N T S ATR 0, 1 & 2 Series True RMS AC...

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Transcript of C O N T E N T S Current Sensors - Coulton · C O N T E N T S ATR 0, 1 & 2 Series True RMS AC...