Building technology/industry For the detection of inflammable, explosive, toxic gases or oxygen. Can also be used in dusty and dirty environments. 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, signal and return conductor (max. 100 Ohm line resistance). Measuring range Technical Measuring range 0/99 % LEL specifications 0–100 % LEL (measurement signal is only linear Measuring principle in the range of 0–50 % LEL) Heat tone (service life approx. 3 years) Measuring principle Semiconductor Supply voltage (service life approx. 5 years) DC 18–28 V Supply voltage Ambient temperature: DC 18–28 V -20/+40 °C Ambient temperature Humidity -10/+40 °C 15/95 % rH Humidity Atmospheric pressure 40/50 % rH 900/1100 hPa Housing Housing W x H x D: 90 x 85 x 65 mm W x H x D: 90 x 85 x 65 mm Weight: approx. 0.4 kg Weight: Approx. 0.4 kg Degree of protection: Degree of protection: IP 40 (EN 60529) IP 40 (EN 60529) Output: 4–20 mA Output: 4–20 mA Measuring range 0/99 % LEL Measuring principle Heat tone (service life approx. 3 years) Supply voltage DC 18–28 V Ambient temperature: -20/+40 °C Humidity: 15/95 % rH Atmospheric pressure 700/1300 hPa Housing Ø x H: 108 x 100 mm Weight: Approx. 0.4 kg Degree of protection: IP 40 (EN 60529) Output: 4–20 mA Option: RS 232 interface EC Type Exam. Certificate As per directive 94/9/EU (ATEX 100a) with certificate TPS 09 ATEX 1 421 X Ex IIG Ex d II C T6 Price € DG: H Gas sensor 400 ST for detecting explosive gases and vapours, semiconductor Gas sensor 400 ST for special gases, semiconductor Gas sensor 510 Ex-2 (MF420-Ex-2) with digital display, for detecting special gases Calibration calibration/programming costs for the alarm thresholds for standard gases (methane, propane/butane, O2, Co, Co2, hydrogen) per sensor Calibration calibration/programming costs for the alarm thresholds for special gases per sensor Gas sensor 500 ST for detecting explosive gases and vapours, heat tone principle Gas sensor 500 ST for special gases, heat tone principle Gas sensor 510 Ex-2 (MF420-Ex-2) with digital display, for detecting explosive gases and vapours, heat tone principle, Ex version

Building technology/industry For monitoring the oxygen concentration. Can also be used in dusty and dirty environments. 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, signal and return conductor (max. 100 Ohm line resistance). 700 ST Measuring ranges 700 ST-CO2: 0/5 % by volume 700 ST-CO2 LG: 0/3000 ppm Measuring ranges 0/21 % O2 by volume Measuring ranges 0.1/21 % O2 by volume Measuring principle Electrochemical, service life 1–2 years Measuring principle Zirconium dioxide Housing...