explosion-proof thermal resistance
http://www.ahdqjt.com time: 10/22/10 09:49application
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.
features
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
iec751
jb/t8622-1997
jb/t8623-1997
jb/t5518-1991
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.
meters
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