GSE 307- Gas Sensor Datasheet

Gas sensor GSE 307 for detection of Hydrogen H2 Mode of operation The principle of the measurement cell used is based on the electro-chemical oxidation of hydrogen H2 on the working electrode. The H2 in the measurement air reaches the working electrode via a gas-permeable diaphragm, and is oxidised. The oxygen molecule used for this is replaced from the ambient air. This results in the very long service life of the measurement cell, which, from experience, can operate for several years. The measured gas concentration is linear to the electrical output signal of the gas measurement probe. The potentiometers and the 3.5 mm jack connection for the calibration are accessible from the outside, and permits a “one-man” calibration. When used in a pump system, the service life can be heavily reduced, as the electrolyte evaporates more quickly through the porous diaphragm. The measurement cell is sensitive to solvent vapours. The calibration gas should be 75% of the measurement range, and must contain synthetic air as the carrier gas. Data and design subject to change without notice GSE307 230305mb Performance Characteristics Sensitivity: 10 ppm Measuring range: max. 40’000 ppm / linear Standard calibration: 0...10’000 ppm/ 0...4 Vol. % Response time t 90: = 110 sec Operating temperature: -20 °C ... +50 °C Start up after reconditioning: max. 1 h Pressure range: atmospheric ± 10% Air humidity: 15...90% non condensing Position sensitivity: none Long term output drift: < 2% / month Life span at 20 °C: at least 2 years depends on the application Cross sensitivity to other gases Test gas concentration display on the of the test gas CO-Sensor Chlorine Cl2 1 ppm 0 ppm Hydrogen Chloride HCl 5 ppm 0 ppm Hydrogen Cyanide HCN 10 ppm ~ 10 ppm Ethylene C2H4 100 ppm ~ 40 ppm Carbon Monoxide CO 300 ppm < 120 ppm Sulphur Dioxide SO2 5 ppm 0 ppm Hydrogen Sulphide H2S 15 ppm ~ 10 ppm Nitric Dioxide NO2 5 ppm 0 ppm Nitric Oxide NO 35 ppm < 10 ppm Hydrogen H2 20’000 ppm 20’000 ppm Sensor electronic specification Cable: 2-core cable, shielded Power supply: 13.5...30 VDC Sensor current: max. 60 mA Output signal: 4...20 mA/max. 60 mA Operating temperature: -40 °C ... +85 °C Inspection (Maintenance) The sensor and the electronic require an inspection. Routine calibration is recommended once or twice a year. Electronic Dimensions 0-Punkt/Zero 4 mAVerstärkung/Gain 20 mA4..20 mAKlinker 3,5 mm3 4 connector formeasuring cellgas sensor serie GSEMesszellen-AnschlussGasmessfühler Serie GSE24 VDC4-20 mA Signal 748065