Compur Monitors developed a detector for extremely toxic gases with an integrated pump and a flow chamber optimized for leak detection. It is available for COCl2, HCN, Cl2, NO2, ClO2 and H2S. The Tracer has its strength where other methods of leak detection would fail because of their cross sensitivities to other gases. It is capable to detect even traces of toxic gases. The detection limit is in the low ppb range depending on the substance to be detected. The Tracer protects itself from being poisoned. If the measured value goes out of range the pump will turn off and will not start again until the concentration falls below 95 % of the range. As a leak detector might be exposed to very high concentrations, it must not be used as a personal monitor. To prevent the Tracer from being used as such it does not display an actual concentration. The display shows only a numerical value or bar graph proportional to the amount of source gas detected. A control tone and LED will increase their alarm frequency in ratio to the measured value. For the use in areas with high background concentration as it might occur for instance in analyser cabinets, the Tracer can easily be converted to a high range leak detector. This is done by just replacing the low range sensor by a high range sensor.
Hall 4.1, Booth O15
cpp 440
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