The CVM is a high-precision 1 channel voltage measurement module and the base module for various expansion boards. Communication and power supply via USB. Furthermore, the PC ground is galvanically isolated from the analog ground.

Voltages in the range 0 V to + 26 V with 4 mV resolution with a typical accuracy of +/- 0.02 % at 23°C can be measured.

There are 2 operation modes: 1st query voltage, 2nd cyclic auto transmit voltage. Other operation modes, such as voltage monitoring (error on request) and a master-slave mode for multiple modules to synchronize mode 1+2, are available as optional modes.

The CVM can be equipped with up to 4 expansion modules.

Additional Info

1x voltage measurement


Expansion board (up to 4x)


Resolution: 16 Bit
Insulation voltage: 500 V

The “Compact Module Series” is a low-cost solution. The modules are mounted on a 35mm DIN rail and offer various possibilities, from simple relay boards to current and voltage measuring cards with integrated multiplexers. These modules are also used in our load modules for example.

The modules are connected to the PC via USB and can be controlled via simple low-level commands, making them very easy to integrate into any type of software.

New modules are constantly being developed to cover the widest possible range of applications. Please contact our sales department if you have an application that is not already covered.

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