CVM32A

Features:

• 32 channels per one CVM32A module
• Basic channel voltage range ±1.5 V
• Maximum voltage span of channels on one module is 34 V
• Multiple modules can be chained to get more channels
• Resolution 1 mV (12-bit)
• Input impedance > 100 MΩ
• Sample rate 100 sps
• Cell connection via 34-pin IDC connectors
• IO (1x digital output, 1x digital input)

Applications:

• H2 fuel-cell tests stands
• H2 fuel-cell application monitoring
• Control systems

System Modularity:

Cell voltage monitoring system consists of:

• One power and communication module KMS-PWR
• Number of 32-channel modules CVM32A, depending on number of channels needed

There are kits available with 64, or 160 channels, which can be extended by an extension kit with 32 channels. Maximum length after extension for those kits is 10 modules with total of 320 channels.

Cell Voltage Monitor CVM-Ext32A Includes:

• 1x CVM32A (1x KMS-PWR integrated)
• 2x XC2 bus plug
• 2x IDC plug for channels
• 4x spacers
• 1x enclosure extension

Cell Voltage Monitor CVM-Kit64A Includes:

• 1x KMS-PWR
• 2x CVM32A
• 1x Power supply 110-230V/24V
• 1x USB cable
• 1x XC2 bus cable
• 4x IDC plug for channels
• 8x spacers
• 1x enclosure
• DIN holder

Cell Voltage Monitor CVM-Kit160A Includes:

• 1x KMS-PWR
• 5x CVM32A
• 1x Power supply 110-230V/24V
• 1x USB cable
• 1x XC2 bus cable
• 10x IDC plug for channels
• 20x spacers
• 1x enclosure
• DIN holder

Technical Specifications of CVM32A module:

• Power supply: 5 V DC / <100 mA from XC2 bus.8...30 V DC with Power supply module KMS-PWR
• Dimensions: 85 x 58 x 13.5 mm one module (without enclosure & connector plugs). 89 x 60 x 16 mm one module (with enclosure, without plugs)
• Mounting: 4x mounting hole 2.7mm, hex spacers with M2.5 thread
• Channel count (User configurable): 1 – 32 channels with single module. 18 – 32 channels per module when more modules are chained
• Channel voltage range: ±1.5 V
• Input voltage span: Max. 34 V per one module
• Average usable symmetrical voltage range:
  • 32 channels, ±1.06 V
  • 30 channels, ±1.13 V
  • 28 channels, ±1.21 V
  • 25 channels, ±1.36 V
  • 22 channels, ±1.50 V
  • 18 channels, ±1.50 V
• Input impedance: > 100 MΩ
• Isolation: < 500 V between channels and XC2 bus. Additional up to 2 kV isolation can be provided by adding of a controller module
• 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
• Measurement resolution: 1 mV (for channel voltage range of ±1.5 V)
• Accuracy: 0.1 % of range + 0.1 % of reading (at 25°C)
• Connection XC2 bus (5V power + RS485 communication)
• Isolated IOs:
  • Input: Voltage range: 0…30 V (5 V…0.85 mA; 24 V…4.90 mA). Max. low-level threshold: < 3 V. Min. high-level threshold: > 4 V
  • o Output: Nominal output voltage: 24 V. Max. output current: 3 mA
  • Isolation Min. 500 V

Example of connection:

CVM-Ext32A: Diagram of connection to the stack.

CVM-Kit64A: Diagram of connection to the stack.

CVM-Kit160A: Diagram of connection to the stack.

Warranty:

24 months limited hardware warranty