Thermocouple and resistor for oil & chemical industry-Huadong instrument

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Thermocouple and resistor for oil & chemical industry

Flameproof thermocouple, thermal resistance, explosion-proof

所属分类：Thermocouple and resistor for oil & chemical industry

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产品概述

In the production of oil, gas, chemical and other industries, inflammable, explosive, corrosive chemical gas, steam and liquid is very common. In order to achieve industrial production automation, workers need a temperature sensor to automatically measure and control the process, while the use of aluminum alloy explosion-proof junction box can no longer meet the safety requirements for flame-proof .

Flameproof thermocouple, thermal resistance, explosion-proof by the National Safety Supervision and Inspection Station test qualified and issued an explosion-proof series of product certification. It uses all stainless steel junction box and could be applied in ExdⅡBT4～5, ExdⅡCT1～6 which demands the highest level of protection---IP65, where corrosion and explosive atmosphere is around.

技术参数

1) temperature and tolerance

Type	Graduation	Tolerance level
		levelⅠ		level Ⅱ
		Temperature range	Tolerance	Temperature range	Tolerance
Nicrsi-Nisimg	N	0～1000℃	±1.5℃ or ±0.4%∣t∣	0～1200℃	±2.5℃ or ±0.75%∣t∣
Ni-Cr – Ni-Si	K
Ni-Cr – Cu-Ni	E	0～800℃	±1.5℃ or ±0.4%∣t∣	0～900℃	±2.5℃ or ±0.75%∣t∣
Type	Graduation	Temperature range		Tolerance level
Pt Resistor	Pt100	-200～500℃		level A：±（0.15+0.002∣t∣）℃
				level B：±（0.30+0.005∣t∣）℃
Cu Resistor	Cu50	-50～100℃		±（0.30+0.006∣t∣）℃
	Cu100

2) models and specifications

Type	Graduation	Temperature range/℃	Thermal response time/s	Long-term use of temperature and material	specification Total length × insertion depth	Note
WRNK-240-dcP2	N	0～1200	τ_0.5≤90	0～1200 K1230、GH1230	300×150 350×200 450×300 500×350 550×400 600×450 750×600 900×750 1150×1000 1250×1100 1400×1250 1500×1350 1650×1500 1750×1600 2000×1850 2150×2000	1, junction box: small stainless steel junction box (P2); 2, protection tube: thermocouple type 0,1 corresponding to φ16, φ20, thermal resistance model 0,1 corresponding to φ16, φ12; 3, the process connection: fixed thread connection, commonly used M27 × 2, optional M33 × 2, NPT1 / 2 ", NPT3 / 4", NPT1 " 4, temperature measurement components: single, double armored components φ3, φ4, φ5, φ6, φ8 or assembly components.
WRNK₂-240-dcP2
WRNK-241-dcP2				0～1100 GH30
WRNK2-241-dcP2
WRKK-240-dcP2	K			0～1000（φ8） 1Cr25Ni20、Cr25Ti
WRKK₂-240-dcP2
WRKK-241-dcP2				0～800 06Cr18Ni11Ti
WRKK₂-241-dcP2
WREK-240-dcP2	E	0～800		0～800 06Cr18Ni11Ti
WREK₂-240-dcP2
WREK-241-dcP2
WREK₂-241-dcP2
WZPK-240-dcP2	Pt100	-200～500		-200～500 06Cr18Ni11Ti
WZPK₂-240-dcP2
WZPK-241-dcP2
WZPK₂-241-dcP2
WZCK-241-dcP2	Cu50 Cu100	-50～100		-50～100 06Cr18Ni11Ti