Cell voltage monitoring

Solutions for cell voltage monitoring of fuel-cells, batteries and electrolyzers

Solution details

Cell voltage monitoring is crucial in many electrochemical and research applications to prevent damage of individual cells of fuel-cell stack or battery, to monitor lifetime conditions and ensure optimal working conditions.

Kolibrik.net provides solutions for a wide range of laboratory, industrial, and transport applications.

Our product portfolio starts with low-cost CVM32A, 32-channel cell-voltage monitor optimized for 1 V cells.

For applications requiring a wider voltage range, higher precision, or more we provide CVM24P, 24-channel cell voltage monitor with measuring range ± 5 V.

Both CVM32A and CVM24P are compact credit-card size modules which can be combined with other modules of the modular KMS system or even customer's rapid development modules such as Raspberry Pi to build complex control and monitoring solutions.

For high-precision and customer configurable applications you can choose TEVOMET - stand-alone device with 16 completely independent channels, each capable of measurement from microvolts up to ±150 V.

Product comparison

	CVM32A	CVM24P	TEVOMET

Number of channels	32	24	16
ADC resolution	12 bits	24 bits	16 bits
RMS noise	1 mV	10 - 100 μV	up to 1 μV
Galvanic insulation	500 V bus to channels	2.5 kV bus to channels	500 V bus to channels and between channels
Communication	RS485/Modbus USB with KMS-PWR module	RS-485/Modbus, CAN USB with KMS-PWR module	RS-485 / Modbus, USB, Ethernet
Voltage measurement range	± 1.5 V	± 5 V	each channel configurable, from millivolts (thermocouples) to ± 150 V
Whole battery/stack voltage measurement	With external KMS module	With external KMS module	Yes
Automotive option	No	Yes	No
Chaining of multiple modules	Yes - up to 10 modules	Yes - up to 20 modules	Yes - up to 10 devices
Enclosure	Optional, plastic	Optional, plastic	Aluminium