WRN-640A WRN2-640A Explosion proof thermocouple

WRN-640A WRN2-640A Explosion Proof thermocouple

Overview

WRN-640A WRN2-640A Explosion Proof thermocouple is usually used with display instrument, recording instrument, electronic computer, etc. It is often used to directly measure the surface temperature of liquid, steam, gas medium and solid in the range of 0 ℃ ~ 1300C when there are explosives such as hydrocarbons in the production site.

Working principle

WRN-640A WRN2-640A Explosion Proof thermocouple uses the principle of gap explosion-proof to design the junction box and other components with sufficient strength. Seal all parts that can produce sparks, arcs and dangerous temperatures in the junction box. When explosion occurs in the cavity, it can be flamed out and cooled through the gap of the joint surface, so that the flame and temperature after explosion cannot be transmitted outside the cavity, so as to conduct explosion-proof.

Features

Good explosion-proof performance and various explosion-proof forms

Temperature sensing element is spring loaded, with good vibration resistance

The temperature range is large

High mechanical strength, good pressure resistance

Main tech data

Product implementation standard

IEC584, GB/T16839-1997, GB26786-2011, GB3836

Insulation resistance in normal temperature

For thermocouple, the environment temperature is 20 + 15 , the relative humidity is not more than 80%, the test voltage is 500 + 50V(DC), the insulation resistance between electrode and outer sleeve≥1000MΩ.m.

Temperature groups of explosion-proof thermocouple is divided into 85-450℃ according to maximum surface temperature of the exposed part

Explosion-proof gradedⅡBT4 ,dⅡCT5 , iaⅡCT6

Protection level: Ip65

Humidity: No more than 85%

Note: Any special design or question of WRN-640A WRN2-640A Explosion Proof thermocouple, kindly contact the manufacturer for more details.