| 摘要 |
FIELD: inspection of hazardous matters content. ^ SUBSTANCE: gas analyzer can be used for inspecting presence of ammonia. Gas analyzer has measurement component content detector made in form of electro-chemical sensor provided with electrolyte consumed ding exploitation and device for detector signal processing and controlling which has in turn microcontroller with central processing unit and program memory unit. Memory element is fastened to case of detector which element is connected with central processing unit of microcontroller through interface. Processor unit provides integration of detector signal value and periodical recording of integral signal value to detector memory unit as well as reading of this value out of memory unit. Limit value of integral signal of the detector is introduced into program memory unit of microcontroller which value corresponds to service life of the detector. This value is periodically compared with current value of integral signal. Analyzer is provided with signaling unit which operates at the moment if current value of integral signal gets equal to limit value of integral signal of the detector. ^ EFFECT: higher quality inspection of value of integral signal. ^ 2 dwg |
