We use cookies on our website.
Some of them are necessary for the functioning of the site, but you can decide about others.
Cell Voltage Monitoring
CVM-32A
CVM-32A
Essential performance for budget-sensitive applications.
A cell voltage monitoring (CVM) system tailored for research, testing and practical application of H2 fuel cells. The CVM system protects the integrity of individual cells and provides valuable data for predictive maintenance planning and performance optimization.
CVM-32A modules and sets are designed as a cost-effective solution mainly for hydrogen fuel cells applications with limited voltage range. These ready-to-use cell voltage monitor sets are easily integrated into specialized applications and allow direct connection to a PC via USBor to a PLC via RS-485 bus.
Explore our precision 2.5 V solutions with the CVM-64H module and sets, or 5 V solution with CVM-24P module and sets. For broader temperature and voltage monitoring requirements, consider our TEVOMET solutions.
Product Introduction Video
See introduction to CVM features and practical live measurement demonstration of Kolibrik Cell Voltage Monitoring Sets.
Key Features
- Modular and scalable design – 32 channels per module, up to 20 modules per system, supporting 640 channels
- The best precision and resolution – 12-bit resolution (1 mV), up to 100 sps @ ± 2.5 V
- Galvanic isolation – safe operation and signal integrity (< 500 V, optionally additional up to 1 kV isolation)
- 34-pin IDC connector (automotive-grade connectors on request)
- Multiple communication options – USB, RS‑485
- Standalone operation or software integration – with Kolibrik software or custom TCP/IP control
Sample Variant – Available on E-shop
| CVM-S32A | 1× CVM-32A: 24 channels total, RS-485/USB, 1× output, 1× input; Out of Box Solution |
| CVM-S64A | 2× CVM-32A: 32 channels total, RS-485/USB, 2× output, 2× input; Out of Box Solution |
| CVM-S96A | 3× CVM-32A: 64 channels total, RS-485/USB, 3× output, 3× input; Out of Box Solution |
| CVM-S128A | 4× CVM-32A: 96 channels total, RS485/USB, 4× output, 4× input; Out of Box Solution |
| CVM-S160A | 5× CVM-32A: 128 channels total, RS-485/USB, 5× output, 5× input; Out of Box Solution |
| CVM-E32A | 1× CVM-32A: 32 additional channels, 1× output, 1× input; Extension for set |
Technical Parameters
| Channel count | 32 channels per one CVM-24P module | |
| Channel voltage range | ± 1.5 V | |
| Input impedance | ≥ 100 MΩ | |
| Isolation | < 500 V between channels and XC2 bus
Additional up to 1 kV isolation can be provided by adding of controller modules |
|
| Sampling | Channel multiplexing in selected range of used channels
12-bit ADC with up to 1 Msps internal sampling All-channel sample rate up to 100 sps |
|
| Accuracy | 0.1% of range + 0.1% of reading | |
| Cell connection | 34-pin IDC connector (automotive-grade connectors on request) | |
| Communication bus | RS-485: XC2 / Modbus RTU
Optional CAN bus and Modbus TCP communication with additional gateways Compatible with other Kolibrik modules |
|
| Inputs / outputs | Opto-isolated I/O with serial communication capability | |
| Power supply | 5 V DC / < 100 mA fom XC2 bus
8 … 30 V DC with Power supply module KMS-PWR |
|
| Application examples | H2 fuel-cell tests stands
H2 fuel-cell application monitoring Electrolyzers monitoring Control systems |
|
| Dimensions | CVM-32A module without enclosure
CVM-32A … CVM-S640A CVM-E32A |
85 × 58 × 13.5 mm
90 × 61 × (n*) × 16 + 24) mm 90 × 61 × 16 mm *) n - number of 32-channel modules |
| Mounting | DIN-rail and wall-mount holders for set enclosures
Single module without enclosure: 4× mounting hole 2.7 mm, hex spacers with M2.5 thread |
|
| Channel count examples | Single CVM-32A module
CVM-S32A CVM-S64A CVM-S160A CVM-E32A |
32 channels
32channels 64channels 160 channels additional 32 channels |
|
|
Multiple modules can be daisy-chained to measure up to 640 channels, custom sets for more channels available. | |
| Ambient operating temperature | -40 °C to +85 °C
+85 °C to +125 °C module can be powered, measurement inactive |
|
*) Channels are organized by groups of 4 channels. Channels in one group can measure up to ±20 V if the sum of group channels does not exceed 20 V. So, one channel can measure up to ±20 V, if other channels in group are short-circuited. Note that adjacent channels and groups are chained together and are not independent.
If these variants do not suit you, never mind! Tell us, what you exactly need – we offer customized solutions!
Documentation
Software
To run your experiments, you’ll use the application CVM Manager – our measurement and control app that manages everything from workstation setup to real-time data acquisition and visualization. Just connect the Cell Voltage Monitoring system, and let the science begin.
Gallery
Custom Design
We offer customization of model parameters, tailored mechanical and electrical setups, or as part of complete development services for custom projects and series production. Need something specific? Just tell us your key requirements — number of channels, interfaces or custom cables needs, custom enclosures, software functions, communication protocols, and any other application-specific constraints — we offer customized solutions!
Ensure Longevity and Safety.
Talk to Our Experts About Your CVM Needs.
Help me choose
Pricing & Orders
All CVM Models
More About Fuel Cell & Electrolyzer Health & Safety Monitoring