explosion-proof thermal resistance

http://www.ahdqjt.com     time: 10/22/10 09:49

it is usually connected with display meter, recording meter and computer, etc. to directly measure temperature of liquid, vapor, gas and solid surface ranging from -200 to 500 with exploxives such as hydrocarbon on production spot.

1.spring thermal element with good shock-proof performance;
2.high measuring accuracy;
3.no compensational wire, spare cost;
4.imported film resistor with high reliability and stability

operation theory
explosion-proof thermal resistance has a junction box of enough strength with gaps inside it. all spare parts which might produce spark, electric arc, and dangerous high temperature are sealed in the junction box. when explosion within the box happens, fire and high temperature caused by explosion could be extincted and cooled. thus, explosion separation could be realized.

main technical parameters executive standard

insulation resistance at normal temperature
the insulation resistance between electrode and protection tube of the thermocouple shall be no less than 100m under condition that environment temperature is 15~35 , relative humidity is no more than 80%, and testing voltage is d. c. 10~100v.