Explosion-proof Thermocouple

Explosion proof thermocouple thermometer

Explosion proof thermocouple thermometer
Explosion proof thermocouple
Product description: Explosion proof thermocouple thermometer is a kind of temperature sensor, which is widely used in chemical industry automatic control system. Through the temperature sensor
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Explosion proof thermocouple thermometer is a kind of temperature sensor, which is widely used in chemical industry automatic control system. Through the temperature sensor, the temperature parameter of the controlled object can be turned into an electrical signal, which can be transmitted to the display, record and regulator to perform detection, Regulation and control. In chemical plants, the production site is often accompanied by various flammable and explosive chemical gases and steam. It is very unsafe to use ordinary thermocouples, and it is very easy to cause environmental gas explosions.
Explosion proof thermocouple thermometer working principle
If a closed loop is composed of two homogeneous conductors (thermoelectrodes) of different components, when there is a temperature gradient at both ends, there is a current passing through the loop, and then there is a thermoelectric potential between the two ends. Explosion-proof uses the principle of clearance and explosion-proof, designing junction boxes and other components with sufficient strength to seal all parts that generate sparks, arcs and dangerous temperatures in the junction box. When an explosion occurs in the cavity, it can pass through the gap of the joint surface. Extinguish and cooling, so that the flame and temperature after the explosion will not be transmitted to the outside of the cavity.
Explosion proof thermocouple thermometer Feature
A variety of explosion-proof forms, good explosion-proof performance; pressure spring type temperature sensing element, good vibration resistance; large temperature measurement range; high mechanical strength, good pressure resistance; designed according to the latest explosion-proof regulation GB3838 that meets the international IEC standard; adopts two chambers Type explosion-proof structure, easy to replace the temperature measuring element, safe and reliable to use

Explosion-proof mark dⅡCT6, suitable for temperature measurement below ⅡC level, ignition temperature above T6, and explosive gas.

Explosion proof thermocouple thermometer Evidence list

防爆级别 Explosion-proof grade	防爆证号 Number of explosion-proof	认证机构 Certification body
dⅡBT4	GYB997151	NEPSI
dⅡCT5	GYB02475	NEPSI
iaⅡCT6	GYB05363X	NEPSI

Note: NEPSI explosion-proof certification department certified the national instruments and meters

型号 Model	分度号 Graduation	允差等级 Tolerance level
		I		II
		允差值 Tolerance value	测温范围 ℃ Range of temperature measurement ℃	允差值 Tolerance value	测温范围 ℃ Range of temperature measurement ℃
WRN	K	±1.5℃	- 40~+375	±2.5℃	- 40~+333
WRN	K	±0.004ltl	375~1000	±0.0075ltl	333~1200
WRM	N	±1.5℃	- 40~+375	±2.5℃	- 40~+333
WRM	N	±0.004ltl	375~1000	±0.0075ltl	333~1200
WRE	E	±1.5℃	- 40~+375	±2.5℃	- 40~+333
WRE	E	±0.004ltl	375~800	±0.0075ltl	333~900
WRF	J	±1.5℃	- 40~+375	±2.5℃	- 40~+333
WRF	J	±0.004ltl	375~750	±0.0075ltl	333~750
WRC	T	±0.5℃	- 40~+125	±1.0℃	- 40~+133
WRC	T	±0.004ltl	125~350	±0.0075ltl	133~350