User Manual

ManualsBrandsLEM ManualsCurrent SensorsCurrent Sensor 1.5 ... 2.5 kA Analog

AHR SERIESAHR SERIES

AC/DC Current TransducersAC/DC Current Transducers

Ranges 500 to 2000ARanges 500 to 2000A

4-20mA, 0-5 or 0-10 VDC Outputs4-20mA, 0-5 or 0-10 VDC Outputs

True RMSTrue RMS

Installation guideInstallation guide

Manuel d’installationManuel d’installation

Installation handleitungInstallation handleitung

Output SignalOutput Signal 0-5VDC or 0-10VDC0-5VDC or 0-10VDC

or 4-20mAor 4-20mA

Output LimitOutput Limit

B5/10 B5/10 7VDC for 5V output7VDC for 5V output

and and 14VDC for 10V output14VDC for 10V output

B420 B420 25mA25mA

Frequency RangeFrequency Range (+/- 1%) DC &(+/- 1%) DC &

20-6000 Hz 20-6000 Hz (All(All

Waveforms)Waveforms)

Response TimeResponse Time To 90% of step change.To 90% of step change.

150ms150ms

AccuracyAccuracy 1% FS1% FS

Power SupplyPower Supply 20-50VDC Nominal20-50VDC Nominal

Output Load for voltage outputOutput Load for voltage output

10 k10 kΩΩ min recommended. min recommended.

Output Load for current outputOutput Load for current output

300 300 ΩΩ max recommended. max recommended.

Isolation VoltageIsolation Voltage 5 kV5 kV

EnvironmentalEnvironmental -40 to 70 Deg. C-40 to 70 Deg. C

-40 to158 Deg. F-40 to158 Deg. F

0-95% RH, non-0-95% RH, non-

condensingcondensing

SpecificationsSpecifications

LEM is a Swiss company serving marketsLEM is a Swiss company serving markets

connected with the transformation and useconnected with the transformation and use

of electricity. It designs, develops andof electricity. It designs, develops and

manufactures high-performance solutions,manufactures high-performance solutions,

ranging from active components to theranging from active components to the

most complex measuring systems.most complex measuring systems.

Diagram 1Diagram 1

Made to MeasureMade to Measure

•• This product is not intended for life or safety applications. This product is not intended forThis product is not intended for life or safety applications. This product is not intended for

installation in hazardous or classified locations.installation in hazardous or classified locations.

•• Potential electrocution hazard exists. Installing sensors in an energized motor control cenPotential electrocution hazard exists. Installing sensors in an energized motor control cen

ter or on any energized conductor can be hazardous.ter or on any energized conductor can be hazardous.

•• Read instructions thoroughly prior to installation.Read instructions thoroughly prior to installation.

•• This transducer shall be used in accordance with manufacturer instruction.This transducer shall be used in accordance with manufacturer instruction.

•• Power supply shall be a low voltage source and shall have an efficient protective systemPower supply shall be a low voltage source and shall have an efficient protective system

against over current.against over current.

•• The temperature of the primary conductor shall not exceed 100°CThe temperature of the primary conductor shall not exceed 100°C

•• This transducer shall be used in an electric/electronic equipment in respect of standardsThis transducer shall be used in an electric/electronic equipment in respect of standards

rules and applicable safety requirements.rules and applicable safety requirements.

•• When operating the transducer, certain parts of the module can carry dangerous hazardousWhen operating the transducer, certain parts of the module can carry dangerous hazardous

voltage. Ignoring the warning can lead to serious injury and/or cause damage.voltage. Ignoring the warning can lead to serious injury and/or cause damage.

•• This transducer is a built in device, of which conducting parts must be inaccessible byThis transducer is a built in device, of which conducting parts must be inaccessible by

installation.installation.

••

The operator must have accrediation to install this material.The operator must have accrediation to install this material.

1.1. Mount the transducer to a surface ifMount the transducer to a surface if

needed.needed.

2.2. Connect output wiring.Connect output wiring.

- - 0-5/10 VDC Model0-5/10 VDC Model: Make sure output: Make sure output

load is at least 10 kload is at least 10 kΩΩ..

- - 4-20mA Models4-20mA Models: Make sure: Make sure

connection is correct (see diagram 1).connection is correct (see diagram 1).

3.3. Insert the wire in the transducer’s hole.Insert the wire in the transducer’s hole.

InstallationInstallationIMPORTANTIMPORTANT

DiagramsDiagrams

AHR-B420AHR-B420

AHR-B5/10AHR-B5/10

8, chemin des Aulx8, chemin des Aulx

1228 Plan-les-Ouates1228 Plan-les-Ouates

Geneva, SwitzerlandGeneva, Switzerland

www.lem.comwww.lem.com

(+)

(-)

24 VDC Power

(Controller, meter etc)

Load

(-)

(+)

10k

Output Connector

1(+) 2(out) 3(none) 4(GND)

AHR

Output Connector

1(+) 2(out) 3(none) 4(GND)

(+)

(-)

24 VDC Power

AHR

(Controller, meter etc)

Load

(-) (+)

Summary of content (2 pages)

PAGE 1
Diagrams Diagram 1 AHR-B5/10 Specifications AHR-B420 Output Signal Output Connector 1(+) 2(out) 3(none) 4(GND) Output Connector 1(+) 2(out) 3(none) 4(GND) AHR AHR Output Limit B5/10 and B420 (+) (+) (-) (-) 10k (-) (+) (-) (+) Load Load (Controller, meter etc) (Controller, meter etc) IMPORTANT • This product is not intended for life or safety applications. This product is not intended for installation in hazardous or classified locations. • Potential electrocution hazard exists.
PAGE 2
ENGLISH Description AHR Series transducers combine a Hall effect technology and a signal conditioner into a single package. This provides higher accuracy and save valuable panel space. AHR Series feature a True RMS output. They are designed for application on DC currents as well as on distorted current waveforms such as VFD (variable frequency drive) outputs.