Detail:
Summary
Industrial explosion proof thermocouple, thermal resistance as temperature measurement and control of the sensor and display instrument supporting, in order to directly measure and control the production process of gas, liquid and steam temperature.
I plant the production of chemical special explosion-proof thermocouple, thermal resistance products explosion-proof performance in accordance with the state promulgated the "explosive environment with explosion-proof electrical equipment" standard design and manufacturing, thermal characteristics in line with the international IEC standards, and by the national instrument and meter explosion-proof safety supervision station testing qualified.
The structure, principle and assembly mode of the thermocouple, thermal resistance of the structure, principle and assembly mode are basically the same, the main difference is that the insulation product wiring box (shell) in the design of high strength aluminum alloy, and has enough internal space, wall thickness and mechanical strength, rubber sealing ring thermal stability are in line with national standards. So when the explosive gas explosion in the junction box, the internal pressure will not destroy the junction box, and the resulting heat can not spread out from the outside. As long as the user strictly comply with the rules of the product, the product will be able to achieve a reliable explosion-proof effect.
Characteristic
Many kinds of explosion-proof, explosion-proof performance is good;
Pressure spring type temperature sensing element, anti vibration performance is good;
Temperature measurement range;
High mechanical strength, good performance;
Working principle
Explosion-proof thermocouple is the use of the gap between the principle, design of a sufficient strength of the box and other components, will be all will produce sparks, arc and dangerous temperature parts are sealed in the junction box cavity, when the cavity occurs through the joint surface gap and cooling, so that after the explosion of flame and temperature is not outside the cavity, so as to carry out.
Main technical parameters
Product implementation standard
IEC584
IEC1515
GB/T16839-1997
JB/T5582-91
GB3836
Insulation resistance at room temperature
Thermocouple at ambient temperature of 20 + 15 C, relative humidity of not more than 80%, the test voltage of 500 + 50V (DC) electrode and the insulation resistance between the jacket tube.M >1000
Measurement range and tolerance
Type number index number
I II
Allows differential temperature measurement range of C
Temperature measurement range of C
K C 1.5 -40 C ~ +375 2.5 -40 +333 ~ WRN
0.004ltl 375 ~ 0.0075 LTL
333~1200
N C 1.5 -40 C ~ +375 2.5 -40 +333 ~ WRM
0.004 LTL 375 ~ 0.0075 LTL 1200 ~ 333
E C 1.5 -40 C ~ +375 1.5 -40 +333 ~ WRE
0.004 LTL 375 ~ 0.004 LTL 900 ~ 333
J C 1.5 -40 C ~ +375 1.5 -40 +333 ~ WRF
0.004 LTL 375 ~ 0.004 LTL 750 ~ 333
T C 1.5 -40 C ~ +125 1 -40 +133 ~ WRC
0.004 LTL 125 ~ 0.0075 LTL 350 ~ 133
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