wq-flowmeter | Beijing WANQUN automation control equipment Co., Ltd.

Thermocouple/Thermal resistance

1 Overview

Thermocouple and thermal resistance are usually used to set and display instrumentand computer, direct measurement of the production of -200 ~ +1800 �� within the scope of liquid, steam and gas solids and surface temperature, because of its simple structure, low price, convenient repair and widely used in petroleum, chemical,metallurgy, electric power, machinery, food, plastics, thermal processing and other industrial sectors, is a common contact type temperature sensor is the most simple and reliable. Thermal resistance, thermocouple temperature sensor produced by our company, using the international standard IEC standards and the Ministry of machinery and electronics industry design, with full specifications, high precision,good stability, long service life, temperature measurement used in petroleum,chemical, machinery, metallurgy, electric power, textile, food, atomic energy,aerospace, and provide special design for many occasions.

Fabricated Thermocouple :

Be measured from 0 to 1800 in the process of all kinds of production within the scope of the liquid, steam, gas medium and solid surface temperature .

Thermocouple Technical Parameters:

Category	Code	Graduation	Temperature range°c	Allowable deviationΔt °c
PtRh₃₀ - PtRh₄	WRR	B	0~1800	±0.15 °c or ± 0.0025 \|t\|
PtRh₁₀ - Pt	WRP	S	0~1600	±0.15 °c or ± 0.0025 \|t\|
NiCr - NiSi	WRN	K	0~1300	±0.25 °c or ± 0.0075 \|t\|
NiCr - CuNi	WRE	E	0~800	±0.25 °c or ± 0.0075 \|t\|

Thermal resistance Technical Parameters:

Type	Detection Range(ºC)	Graduation	Deviation Permit tºC
WZP, Pt	-200~600	Pt100	Grade B(-200~600ºC) DP±(0.30+0.005\|t\|)
WZP, Pt	-200~600	Pt100	Grade A(-200~205ºC) DP±(0.15+0.002\|t\|)
WZC, Cu	-50~100	Cu50 Cu100	-50~100ºC DP±(0.3+0.006\|t\|)

Selection table

W-	Temperature instrument
Type	Z	Thermal resistance
	R	Thermocouple
Graduation mark .		P	Platinum resistance
		C	Copper resistance
		N	The K
		E	The E
		F	The J
		C	The T
		S	The S
		R	The B
Fixed mode			1	No fixed form
			2	Fixed thread (the order stated specification) standard M272/M201.5
			3	Movable flange (HG20592-20635-97 Chang Ya)
			4	Fixed flange (pressure 2.5Mpa) HG20592-20635-97 standard
			5	Taper pipe thread (fixed pressure 20Mpa M33*2)
			6	The movable clamping sleeve thread (atmospheric situations)
Connection box				H3	Waterproof
				H4	Explosion
Length specification					L1	Total length (junction box below) unit: mm
					L2	The insertion depth (thread, not including should indicate the unit: mm)
The insert rod specifications						0	Φ12mm stainless steel (low temperature)
						1	Φ16mm stainless steel (low temperature)
						2	Φ16mm ceramics (high temperature, corrosion)
						3	Φ20mm ceramics (high temperature, corrosion)
						4	Φ25mm ceramics (high temperature, corrosion)
						5	Φ4mm armored (bending)
						6	Φ6mm armored (bending)
						7	Φ18mm wear (typically used in power plant fluidized bed technology) Φ 18*3 specification
Sensor							G1	Single
							G2	Double branch
Accuracy grade								B	Class B
								A	Grade A

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