GAS ANALYZER OF HYDROGEN CHLORIDE Russian patent published in 2003 - IPC

FIELD: measurement technology, determination of composition of gas mixtures. SUBSTANCE: proposed gas analyzer is intended for control over atmosphere of production shops and environment. Gas analyzer includes micropump, first and second chokes controlling flow rate of air, first and second filters, first and second indicators of flow rate of air, first and second tee-joints, information processing unit, analog-to- digital converter, digital indicator, light double-level signaling system, relay element, first and second sensors of gaseous chlorine. First sensor measure gaseous chlorine in ambient air and second sensor measure gaseous chlorine produced in decomposition facility. Flows are choked, cleaned and filtered to produce chlorine from mixture of air and hydrogen chloride contained in environment. Information processing unit subtracts, compares and converts signals from first and second chlorine sensors to content of hydrogen chloride in environment which is presented via analog-to-digital converter, digital indicator and indicating lamps of excess of lower and upper limits and buzzer. EFFECT: increased functional stability and provision for independence of measurement despite presence of hampering components in ambient air. 1 dwg