WRF thermocouple

NegotiableUpdate on 12/15

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Nature of the Manufacturer: Producers

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Overview

WRF thermocouple $r $n is an industrial thermocouple used as a temperature sensor, usually used in conjunction with display instruments, recording instruments, and electronic regulators. It can directly measure the surface temperature of liquid vapor and gas media, as well as solids, ranging from 0 ℃ to 1800 ℃ in various production processes.

Product Details

WRF thermocouple

Overview

industrial usethermocoupleAs a temperature sensor, it is usually used in conjunction with display instruments, recording instruments, and electronic regulators. It can directly measure the surface temperature of liquid vapor and gas media, as well as solids, ranging from 0 ℃ to 1800 ℃ in various production processes.

According to national regulations, our company

thermocoupleAssembly type of platinum rhodium 30-platinum rhodium 6, platinum rhodium 10 platinum, nickel chromium nickel silicon, nickel chromium constantan, etc. that comply with IEC international standard division numbersthermocouple.thermocoupleIt usually consists of main components such as temperature sensing elements, installation and fixing devices, and junction boxes.

Measurement range and allowable error range

model	graduation mark	Tolerance level
		Grade I		Level II
		Allowable deviation	Temperature measurement range℃	Allowable deviation	Temperature measurement range℃
WRN	K	±1.5℃	-40~+375	±2.5℃	-40~+333
WRN	K	±0.004（t）	375~1000	±0.0075（t）	333~1200
WRM	N	±1.5℃	-40~+375	±2.5℃	-40~+333
WRM	N	±0.004（t）	375~1000	±0.0075（t）	333~1200
WRE	E	±1.5℃	-40~+375	±2.5℃	-40~+333
WRE	E	±0.004（t）	375~800	±0.004（t）	333~900
WRF	J	±1.5℃	-40~+375	±2.5℃	-40~+333
WRF	J	±0.004（t）	375~750	±0.004（t）	333~750
WRC	T	±0.5℃	-40~+125	±1℃	-40~+133
WRC	T	±0.004（t）	125~350	±0.0075（t）	133~350

WRP	S	±2.5℃	0~+600
WRP	S	±0.0025（t）	600~1300
WRQ	R	±2.5℃	0~+600
WRQ	R	±0.0025（t）	600~1300
WRR	B	±2.5℃	0~+600
WRR	B	±0.0025（t）	600~1600

Note:t Measure the temperature value of the temperature sensing element（℃）

WRF thermocouple

thermocoupletime constant

Thermal inertia level	Time constant (seconds)	Thermal inertia level	Time constant (seconds)
Ⅰ	90－180	Ⅲ	10－30
Ⅱ	30－90	Ⅳ	＜10

thermocoupleNominal pressure: generally refers to the static external pressure that the protective tube can withstand and rupture at working temperature. thermocoupleMinimum insertion depth: should not be less than the outer diameter of its protective sleeve 8－10 Double (except for special products)

Insulation resistance: When the ambient air temperature is 15－35℃, relative humidity<80%Time insulation resistance≥5 Megaohm (voltage) 100V）. Equipped with splash proof junction box thermocoupleWhen the relative temperature is 93± 3℃ When, insulation resistance≥0.5 Megaohm (voltage) 100V）

thermocoupleInstallation and fixing method

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Selection Table

1 2 3 4 5 6 7 8

WR□□-□□□-□/□-□

WR□	thermocouple standard form
1	mark	thermocouplecategory		graduation mark
	N	nickel-chromium-Nickel silicon		K
	M	Nickel chromium silicon-Nickel silicon		N
	E	nickel-chromium-Copper nickel		E
	F	iron-Copper nickel		J
	C	copper-Copper nickel		T
	P	platinum-rhodium 10-platinum		S
	Q	platinum-rhodium 13-platinum		R
	R	platinum-rhodium 30-platinum-rhodium 6		B
	W	Tungsten rhenium 3-Tungsten rhenium 25		WRe3/25
		mark	thermocouplelogarithm

2	1	Single support type (can be unmarked)
	2	Double branch type
	3	mark	Install fixed devices
		1	No fixed device
		2	Fixed thread
		3	flange
		4	Fixed flange
		5	Flexible tube connector type
		6	Fixed thread cone form
		7	Straight pipe joint type
		8	Fixed threaded pipe joint type
		9	Active threaded pipe joint type
		4	mark	Form of junction box
			2	Splash proof type
			3	waterproof type
			4	Explosion proof type
			5	mark	Diameter of protective tube（mm）
				0	F16
				1	F20（S/R/B typethermocoupleforF25 Double layered tube
				2	F16(High aluminum tube, limited for use only) KTheN typethermocouple）
				3	F25(High aluminum tube, limited for use only) KTheN typethermocouple）
					Special instructions (diameter indicated)Size (in inches)
				6	Chief of Staff L/	mm
					7	Insert length l	mm
					8	mark	Explosion proof level
						BT4	ExdIIBT4
						CT4	ExdIICT4