GTR210 Datasheet | ADOS

e s t . 1 9 0 0 Instrumentation and Control Gastransmitter GTR 210 ADOS Gmb H Instrumentation and Control P.O. Box 500 444 - 52088 Aachen - FRG Trierer Strasse 23 - 25 - 52078 Aachen - FRG Tel: +49 (0) 2 41 / 97 69 - 0 Fax: +49 (0) 2 41 / 97 69 - 16 info@ados.de .ados.de Gastransmitter Application The gas transmitter ADOS GTR 210 is suitable for continuous measurement of gases in normal areas and areas where there are risks of explosion. By employing 6 different types of sensor, noxious, explosive and non-bustible gases and vapours can be measured. Display of the measured gas concentration and the adjustable alarm thresholds, are shown on a multicolour graphic display. The keyboard input is by way of a touchpad. A current signal is generated that is proportional to the measured concentration of gas, which is transmitted to an evaluation unit placed in a safe area, away from any dangers of explosion. The type test of the explosion-protected gas transmitter, is pleted by the KEMA. KEMA test certificate: No.: KEMA Type of protection: Ex d e ia mb IIC T4 Gb GTR 210 e s t . 1 9 0 0 Fields of Application - - - - - - - - - - - - Chemical industry Manufacture of paints and varnishes Plastic processing plants Sewage works Gas-fired boiler systems Liquid gas storage houses Laboratories Oxygen concentration measurement Refineries Cold-storage houses (Ammonia monitoring) Paint spraying booths and many more The TGS sensor The TGS sensor contains a semiconductor sensor, which is ­ constructed on Sn O2-sintered N-substrate. When bustible or reducing gases are absorbed by the surface of the sensor, the concentration of the test gas is determined by the change in conductivity. 1 = Circuit voltage 2 = Heating voltage 3 = Load resistor The VQ sensor The head of the VQ sensor functions on the principle of heat ­ reaction. When bustible or reducing gases or ­ vapours e in contact with the measuring element, they are subjected to catalytic ­ bustion, which causes...