Gas Sensor for Detection of Carbon Monoxide CO-GSE 507

Gas sensor GSE 507 for detection of Carbon Monoxide CO Mode of operation The principle of the measurement cell used is based on the electro-chemical oxidation of carbon monoxide CO to carbon dioxide CO2. The CO 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 GSE507 230305mb Performance Characteristics Sensitivity: at least 1 ppm Measuring range: max. 1000 ppm / linear Standard calibration: 0...100 / 0...250 ppm Response time t 90: = 30 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: < 5% / year Life span at 20 °C: at least 3 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 < 2 ppm Ethylene C2H4 100 ppm = 100 ppm Ethanol C2H5OH 200 ppm 0 ppm Carbon Monoxide CO 250 ppm 250 ppm Sulphur Dioxide SO2 5 ppm 0 ppm Hydrogen Sulphide H2S 15 ppm < 0.3 ppm Nitric Oxide NO 35 ppm = 7 ppm Hydrogen H2 100 ppm < 60 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