# Current Measurement Module CMM – Operating & Quiescent Current

Category: Hardware · Product page: https://irs.systems/en/products/hardware/current-measurement-module

High-precision current measurement modules (CMM) for operating and quiescent current, e.g. in automotive testing: Eurocard for 19-inch racks or standalone.

The current measurement modules from IRS enable high-precision monitoring of operating and quiescent current, especially for industrial applications such as the automotive sector.

The CMM modules in Eurocard format plug into a standard 19" rack. They can also be integrated as a standalone device with one or more channels, for example in a benchtop housing.

Thanks to DAkkS calibration including an adjustment option and their high reliability, the modules deliver very accurate long-term results.

Recalibration can be integrated simply and is maintenance-friendly.

All modules offered have two communication interfaces for configuration and data acquisition:

- CAN/ CAN FD
- Ethernet

## Key facts

- Current measurement from 1 µA up to 190 A (depending on the module)
- Automatic, uninterrupted switching between measuring ranges
- Monitoring of min, max and average values over any time period
- Continuous measurement with sampling rates up to 125 kSa/s
- Integration into test environments via C# DLL or LabVIEW library

## Comparison and prices

| Module | CMM-IV | CMM-2CH | CMM-3CH |
| --- | --- | --- | --- |
| Measuring range | 1 µA – 190 A | 1 µA – 15 A | 1 µA – 15 A |
| Max. continuous load | 100 A | 10 A | 5 A |
| Measurement deviation (typ., calibrated) | ±0.2 % of range | ±0.2 % of range | ±0.2 % of range |
| Channels per module | 1 | 2 | 3 |
| Sampling rate (max.) | 125 kSa/s | 1 kSa/s | 1 kSa/s |
| Interfaces | CAN (Classic), CAN-FD, Ethernet | CAN (Classic), CAN-FD, Ethernet | CAN (Classic), CAN-FD, Ethernet |

## List prices per unit

- CMM-IV: €1,520
- CMM-2CH: €2,500
- CMM-3CH: €3,000

Quotes and project inquiries: https://irs.systems/en/contact

## Accessories

## Mating connectors

Mating connectors for all modules

## Backplanes

For easy connection of our CMM, we offer various backplanes:

- CMM IV backplane CAN incl. VG24+8 connector + 8 high-current contacts
- CMM 2CH backplane rack
- CMM 3CH backplane rack

Do you need a customized measurement solution?

Our high-precision current measurement modules are also available as a custom-configured version in a rugged laboratory housing – perfect for research, development and special applications.

## Documentation and downloads

- [Online documentation CMM 2CH / 3CH](https://irs.systems/en/docs/cmm-2ch-3ch)
- [Online documentation CMM IV](https://irs.systems/en/docs/cmm-iv)
- [Online documentation CMM III](https://irs.systems/en/docs/cmm-iii)