Gas sensors series 400, 500, 600, 700 and 800.
Series 400 (semiconductor), 500 (heat tone), 600 (electrochemical), 700 (infrared) and 800 (zirconium dioxide) for connection to gas alarm systems (evaluation units) types GW-S, GW-S4 and GWSK. The gas sensors are connected to the corresponding units. The sensors are suitable for dusty and dirty environments. Depending on the version (measuring principle), they are used to detect inflammable and explosive or toxic gases. All sensors of this series feature a 4–20 mA output signal. The gases and vapours which can be detected comprise: methane, propane, butane, hydrogen, acetylene, ammonia, acetone, alcohol and fuel vapours, CO, CO2, O2, etc. Please enquire for calibration for other gases.