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Product Details
Introducing Cell Guard, a cutting-edge CAN-based sensor designed to revolutionise battery system monitoring. This versatile device measures absolute pressure, air temperature, Volatile Organic Compounds (VOCs), absolute air water content, relative humidity, dew point temperature, and acceleration. With configurable CAN bus speed and address, and an included CAN DBC file, Cell Guard integrates seamlessly into virtually any battery system, providing early detection of cell venting and moisture formation.
Cell Guard features a low power mode that continuously monitors the environment, transmitting data only when a set threshold is exceeded, thereby conserving energy. Additionally, its low side drive function pin, capable of 500mA, can be triggered when programmable thresholds are met, ensuring prompt response to critical conditions.
Equipped with a 5-pin automotive-rated Molex Nano-Fit Power connector, Cell Guard’s compact size and lightweight design allow for easy installation in most vehicles and energy storage systems. Developed in accordance with ISO26262 and rigorously tested to meet automotive standards, including ISO7637-2 2011, ISO 17650-2 2012, and ISO 17650-4 2010, Cell Guard ensures reliability and performance. Enhance your battery system’s safety and efficiency with the state-of-the-art Cell Guard sensor.
Product Features
- Absolute Pressure: 0.3 to 1.2 Bar
- Air Temperature: -40°C to +125°C
- Volatile Organic Compounds (VOCs): 0 to 6553.5 ppm
- Absolute Humidity: 0 to 35000mg/m3
- Relative Humidity: 0 to 100%
- Dew Point Temperature: 0 to 100°C
- Shock load and duration up to ±24G
For quick desktop analysis, use alongside the Cell Guard Development Kit.
Typical applications for the Cell Guard
- Battery Packs in Energy Storage Systems
- Battery Packs in Electric Vehicles
Unit Specifications
| Sensor | Attribute | Value |
|---|---|---|
| Pressure Sensor | Range | 0.3 Bar to 1.2 Bar |
| Pressure Sensor | Resolution | 0.0001 Bar |
| Pressure Sensor | Accuracy (0.3 to 1.1 Bar) | 0.0005 Bar |
| Pressure Sensor | Max Update Rate | 50Hz |
| Air Temperature [1] | Range | -40°C to 125°C |
| Air Temperature [1] | Resolution | 1°C |
| Air Temperature [1] | Accuracy (@ 24VDC) | ±1°C |
| Air Temperature [1] | Max Update Rate | 5Hz |
| Volatile Organic Compounds (VOC's) | Range | 0 to 65535 Raw |
| Volatile Organic Compounds (VOC's) | Range | 0 to 6553.5 ppm |
| Volatile Organic Compounds (VOC's) | Accuracy (Worse Case) | 15% [2] |
| Volatile Organic Compounds (VOC's) | Max Update Rate | 1Hz |
| Absolute Humidity [3] | Range | 0 to 35000mg/m3 |
| Absolute Humidity [3] | Resolution | 70mg/m3 |
| Absolute Humidity [3] | Accuracy (Worse Case) | 3% FSS |
| Absolute Humidity [3] | Max Update Rate | 5Hz |
| Dew Point | Range | 0°C to 100°C |
| Dew Point | Resolution | 0.5°C |
| Dew Point | Accuracy (Worse Case) | -2°C |
| Dew Point | Max Update Rate | 5Hz |
| Relative Humidity | Range | 0% to 100% |
| Relative Humidity | Resolution | 0.5% |
| Relative Humidity | Accuracy (Worse Case) | -2% |
| Relative Humidity | Max Update Rate | 5Hz |
| Accelerometer [4] | Range | -24g to +24g |
| Accelerometer [4] | Resolution | 0.01g |
| Accelerometer [4] | Accuracy (Worse Case) | 0.1g |
| Accelerometer [4] | Max Update Rate | 200Hz |
| Environment | [5] Operating temperature | -20°C to +70°C |
| CAN | Baud Rates [6] | 1000, 500, 250 & 125kbps |
| CAN | Address Range [7] | 1 (0x01) to 2042 (0x7FA). Default = 0x30A decimal (Hex) |
| Power | Voltage Range | 9V to 16V (18V to 32V for 24V Version) |
| Power | Current (silent mode/low power @12V) | 35mA (7.5 mA) |
| Output Pin | Voltage Range [8] | 9V to 32V |
| Output Pin | Current | 500mA |
| Output Pin | Type | Low Side Drive |
[1] Air Temperature accuracy is dependent on installation, heat from the sensor itself can affect this.
[2] % of meas. value, sensor drift is 1.3% of measured value per year of operation, 90% of the sensors will be within the typical accuracy tolerance.
[3] Humidity accuracy valid from 0 to 80 deg C IC temperature.
[4] Not normally fitted, only on variant with accelerometer option selected.
[5] For the VOC the stated accuracy is achievable between -10 and 50 deg C. Nominal max temperature range is -20 to 55degC for maximum life, absolute max for sensor die temperature is 70 deg C (air temp can be greater).
[6] The default settings are 500kbps and start address 778 (0x30A), the unit has no CAN termination.
[7] The unit uses 4 CAN address which are in consecutive order from address that the unit is set to.
[8] the function pin is protected to transients up to 40VDC but is not current limited, please ensure load is not above 500mA.
[9] The function of this pin is assigned when configuring the unit please refer to the manual.
