Poison gas thermocouple sensor selection method

Poison gas thermocouple sensor is a kind of commonly used testing instruments, is the concentration of harmful gas in the air can be converted to electrical signal device, has high sensitivity, good selectivity, low concentration as well as good output linear. Today, engineering is mainly to introduce poison gas selection skills, hope can help users better application products.

overview poison gas thermocouple sensor

poison gas thermocouple sensor is mainly used for detection of flue gas, the pollution of the environment gas such as exhaust gas, waste gas, application is the most constant potential electrolysis type thermocouple electrochemical gas sensors. Is characterized by high sensitivity, good selectivity, low concentration linear output is good, can be used for industrial hygiene of stationary or portable gas monitor, flue gas monitoring, monitoring equipment used for vehicle emissions.

thermocouple sensor selection techniques have poison gas

the harmful gas detection of gas one thermocouple sensor, the detection of harmful gas has two purposes, is the first blast, the second is a poison. The blast is testing for the dangerous sites combustible gas content, excessive alarm, in order to avoid the happening of explosion accident; Poison is to detect the contents of toxic gases for the dangerous sites, excessive alarm, in order to avoid poisoning.

there are three kinds of harmful gas situation first, non-toxic or low toxic, flammable, the second, not toxic, third, flammable and poisonous. In the presence of these three different, generally we choose thermocouple sensors need to choose a different gas thermocouple sensor. Blast choose combustible gas detection alarming device, for example, measuring the poison choose toxic gas detection alarming device, etc. Second we need to choose the type of gas thermocouple sensor, generally have fixed and portable. Long run the position of production or storage of leak detection choose fixed gas thermocouple sensor; Other like access detection, emergency detection, detection and circuit selects the portable gas such as thermocouple sensor.

gas type thermocouple sensor there are hundreds of thousands of species, according to different gas selection of thermocouple sensor may have different skills, customer in choosing gas thermocouple sensor if you are not very clear can consult thermocouple sensor manufacturers of technical personnel, let them for you to choose the appropriate gas thermocouple sensor, or ask thermocouple sensor technology to the above survey in order to better choose gas thermocouple sensor.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure thermocouple sensor, digital temperature thermocouple sensor