Gas Detectors & Sensors
Replacement Sensors for cGas Detectors
Replacement Plug & Play Smart Sensor Boards for CGAS-A, CGAS-D, CGAS-AP and CGAS-DP models.
Gas sensors have a lifespan and need to be replaced when they are no longer responding as expected.
Description
All cGas Detector models have Plug & Play Smart Sensor Technology which makes the sensor replacement process quick and easy. The sensor is installed on a smart board, configured and calibrated before it is shipped from the factory. To replace the old smart sensor board, it is removed in the field and the new smart sensor board is installed. A bump test should be done to make sure the unit responds as expected.
WARNING: It is important to replace the entire Plug & Play Smart Board, not just the sensor by itself. The smart board contains information that tells the cGas Detector how to operate properly with the new sensor.
Sensors have an operational life expectancy and will need to be replaced when they no longer perform or respond as expected. Environmental factors like temperature, humidity, dirt, dust and exposure to repetitive or high concentrations of the target gas all play a part in how long the sensor will last in the field. Regular maintenance along with monthly bump tests and calibrations as recommended by the manufacturer (and applicable regulations) will help keep you informed about the operation of your gas detector. If you suspect something may be affecting its performance or the unit is not responding as it should, you need to test the unit with a bump test to make sure the sensor is capable of measuring gas and if that fails, do a full calibration. If the calibration fails, you need to replace the sensor.
The typical lifespans:
- Electrochemical sensor typically last 2 to 3 years however more exotic echem gas sensors degrade faster and may only last 12 - 18 months
- Catalytic sensors and solid state refrigerant sensors typically last 5 years
- Non-dispersive infrared (NDIR) sensors typically last 7 to 10 years
- PID sensors are affected by how dirty the environment is and how often the sensor is exposed to the target gas
Sensors also have a shelf life for storage. When storing sensors, package them securely so no dust or dirt will settle in or on them, especially for NDIR and PID sensors where dirt can cause operational problems. Electrochemical sensors have a shelf life of 6 months and should be stored in the fridge, otherwise their shelf life may decrease to 3 - 4 months.