Semiconductor gas sensor GS 400 ST

For the detection of flammable, explosive gases. Can also be used in dusty and dirty environments. Description For connection to the gas alarm units GW-S, GW-S4 and GW-SK. Aluminium wall mounting design. Connection cable (shielded) 3 x 1.5 mm2 Cu+ protective conductor, supply and return conductor (max. 100 Ohm line resistance). Technical data Measuring range 0/50 % Measuring principle Semiconductor Service life: Approx. 5 Jahre Supply voltage DC 24 V ± 5 % Operating temperature range Ambient: -10/+50 °C Humidity/moisture 40/50 % rH Housing W x H x D: 90 x 85 x 65 mm Weight: Approx. 0.5 kg Degree of protection: IP 54 (EN 60529) Output signal 4–20 mA