MODEL TOX-HCN/ANA HYDROGEN CYANIDE SENSOR GUIDE SPECIFICATION

Provide a Toxalert Model Tox-HCN/ANA Hydrogen Cyanide (HCN) sensor(s) with a range of 0 to 20 ppm (parts per million) and an analog output of 4 to 20mA over its range. The sensor shall be housed in an explosive proof housing. The sensing element shall be electrochemical and have a life of one to three years. The sensor response time shall reach 90% of level being sensed in 70 seconds. The sensor shall be powered by low voltage and have a self check capability and an LED to indicate sensor "okay". If the sensor fails its output shall drop to zero to signal the controller of the failed condition. The sensor shall be as manufactured by Toxalert International, Inc.