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Documentation · CMM IV

CMM IV

The current measurement module CMM-IV can be used to measure, evaluate and check current consumption of a dynamic DC load, typically an automotive electronic control unit. It can measure currents from 1µA to 100ADC (190A range) with automatic range selection that switches within microseconds. The current range from 1µA to 190A is split into 7 ranges, i.e. seven decades.

RangeNominal Range minNominal Range maxLower Range is selected atHigher Range is selected at
01 µA100 µA-110 µA
1100 µA1 mA90 µA1.1 mA
21 mA10 mA0.9 mA11 mA
310 mA100 mA9 mA110 mA
4100 mA1 A90 mA1.1 A
51 A10 A0.9 A11 A
610 A190 A9 A-

Intended use

This module is designed to be used as a current measurement device in an industrial environment. It is not designed to be used as a power switch.

Purpose of this document

The purpose of this document is to describe how to integrate the module in a test system and how to access it from the software point of view. Limits of application are shown in the technical data section.

This document is addressed to system integrators and the users, who are applying the module.

Document overview

This document contains 3 sections.

  • The first section includes an introduction to this manual
  • The second section includes description of the hardware
  • The third section includes accessing the module from the software point of view.

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