Dräger SensorAlive is a self-testing H₂S sensor compatible with the Polytron 8100 transmitter and the PointGard 3100 with EC Sensing Remote standalone gas detection system running the latest firmware.

SensorAlive performs a LifeTest on a daily basis to check the function and sensitivity of the integrated electrochemical sensor. The LifeTest consists of two sequential activations of the gas generator, a sensitivity test, and an obstruction test of the sensor using 2 internal nozzles. A single test takes about 8 minutes to complete. The complete LifeTest process, including the conditioning of the gas generator, performing two sequential tests, and evaluating the sensor data, extends over a period of approximately 8 hours. During this time, the sensor retains its ability to detect gas.

Calibration of the electrochemical sensor is still required at regular intervals. During a calibration, the gas generator is also calibrated by SensorAlive at the same time.

The calibration interval of electrochemical sensors can be extended when using SensorAlive. The calibration interval can be determined and adjusted according to application requirements as SensorAlive performs a daily check and issues a warning or error message if there is a deviation.

As with all DrägerSensor^® electrochemical sensors, the Dräger SensorAlive offers fast response, high accuracy and stability, long service life, and established principles of intrinsic safety for electrical explosion protection.

Coupled with the Dräger Polytron 8100 transmitter, Dräger SensorAlive provides access to proven measurement technology, permitting usage in Zone 1 / Div 1 rated hazardous atmospheres. Remote sensor installations up to 30 meters (100 feet) away from Polytron 8100 transmitters are supported.

The Dräger SensorAlive is also plug-and-play ready thanks to built-in electronic intelligence and pre-calibration.