Movable Adjustable Flange Armored Thermocouple WRCK-501,WRCK-521,WRCK-531

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Description

Product Detail

WRCK series armoured type thermocouple

Brief Description

WRCK series armoured type thermocouple has advantages of being able to bend, high temp resistance, quick thermal response time and being sturdy and durable etc. Like industrial assembly-type thermocouple, as sensor of temp measurement, it is usually used with display, recorder and electronic regulator. Moreover, it can also be the temp sensor element of assembly-type thermocouple. It can measure temp of liquid, stream, gas and surface of solid range 0?~400? in all production processes. It is as per GB/T18404-2001 standard.

Working principle

Thermocouple working principle: two conductors with different components are welded at both ends to form a loop, measuring temperature directly side is called measurement side, terminal side is called reference side. When the temperature between measurement side and reference side has a difference, it will generate heat in the loop current, then connected to the display instrument, And the instrument indicates the corresponding temperature value of the thermal electromotive force generated by the thermocouple. Thermocouple thermoelectric EMF will grow with the measurement temperature ’s growth, The size of the thermal electromotive force is related to the temperature of both ends. It has nothing to do with the length, diameter of the thermode. Armoured thermocouple structure is made of conductor, insulation magnesia and 1Cr18Ni9Ti stainless steel protection tube after many times drawing. Junction box, protective tube, insulated casing, terminals and armoured thermocouple form a basic structure of assembly-type thermocouple, with a variety of installation of fixtures. Armoured thermocouple has two kinds: insulation type and shell connecting type.

Main technical parameter

Temperature measurement range and tolerance

Category	Code	Graduation	Outer diameter of well mm	Temperature?	Max temp?	Allowed error ?t
						Measuring range?	Allowed error value
Cu-CuNi	WRCK	T	=F3	350	400	<-200	Not provided
						-40~350	±0.75%t

Note:1)t is the absolute value of measuring temperature.

Thermal response time
When the temperature appear step change, the thermocouple output variation is to the equivalent of 50% of the change, The time required is called the thermal response time “T0.5”

Thermal response time of armoured thermocouple should not be more than requirements of the following table:

Thermal response time T0.5S	Shell connecting type	Insulation type
Well diameter(min)	Shell connecting type	Insulation type
2.0	0.4	0.5
3.0	0.6	1.2
4.0	0.8	2.5
5.0	1.2	4.0
6.0	2.0	6.0
8.0	4.0	8.0

Insulation resistance
When the ambient temp is 20±15?, and relative humidity is not more than 80?, the insulation resistance value between insulation armoured thermocouple wires and outer tube should be as per the following table.

Well diameter mm	Test voltage V-D.C	Insulation resistance MO.m
0.5~1.5	50±5	=1000
>1.5	500±50	=1000

Model

W	R	Spec
		N	NiCr-NiSi
		E	NiCr-CuNi
		C	Cu-CuNi
		Material of thermometric element	K
			Armoured type	-	1	No fixed device
					2	Fixed adjustable thread joint
					3	Flexible adjustable thread joint
					4	Fixed adjustable thread flange
					5	Flexible adjustable thread flange
					Mounting fixed type	0	No junction box
						2	Splash-proof
						3	Water-proof
						8	Hand lever
						8	Little junction box
						9	With compensating lead wire
						Junction box type	1	Insulation
							2	Shell connecting
							7	Insulation(Hand lever)
							8	Shell connecting(Hand lever)
							Working end type	3	3-couples
								4	4-couples
								5	5-couples
								6	6-couples
								Multi-couples
W	R	?	K	-	?	?	?	?

If the movable adjustable flange armored thermocouple wrck-501,wrck-521,wrck-531 for sale caters to your requirement, welcome to buy with us. As one of the leading such manufacturers and suppliers in China, we will offer you cheap price and excellent services.

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