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+44 (0) 191 387 1923


Map replacement


Peak Test Services Ltd

152a Front Street
Co. Durham
United Kingdom
+44 (0) 191 387 1923

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About Peak Test

Founded in 1986, Peak Test is the UK leader in the distribution of test probes and receptacles, it carries the most comprehensive range of probes, many of which are available ex-stock for next day delivery.

Peak Test are the UK distributor for Virginia Panel Corporation (VPC) Mass Interconnect, Optomistic LED Test and Voltera Prototype PCB Printer.

Peak Test Services is an ISO accredited Company.

The leading UK distributor of Spring Contact Test Probes and Test Accessories

System Modules

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Signal Conditioners

Voltage and Current Isolation Amplifiers

Peak Test - DRA Signal Conditioner 

The DRA range are DIN Rail mounting 2 or 3 channel isolation amplifiers that can be configured during manufacture. Standard options are offered with 3 types of inputs, External Current Shunt, Internal Current Shunt and Internal Voltage Divider. It can also be offered as a customised unit with the input scaling and configuration defined by the user.

Isolation amplifiers provides a means to measure signals without the signal ground and measurement ground being directly connected. This is desirable in a number of instances in industrial applications:

  • The signal is referenced to a ground at a different potential to the measurement system ground.
  • The signal has a large common mode swing relative to the measurement system, for example a current sense resistor in an electrical phase.
  • Break ground loops so that leakage currents cannot flow in either direction between the signal and the measurement.

The DRA isolation amplifiers have been designed to measure voltage or current. They have 3 channels that can be configured to measure anything from millivolts full scale up to ±1000V full scale. The signal may be voltage from an electrical supply, the phase of a motor, a solenoid drive, or it may be a voltage derived from a sensor such as a current sense resistor.

Click here to view Datasheet

Application Notes


Current Measurement

THD Measurement

Part Number Description Price
610268 DRA005 - 3 channel external current shunt £495.00
610269 DRA006 - 3 channel internal current shunt £495.00
610270 DRA007 - 3 channel voltage £495.00
610271 DRA008 - Single phase voltage and external current shunt £345.00
610272 DRA009 - Single phase voltage and internal current shunt £345.00
620176 DRA004 - Generic Isolation Amplifier RFQ only