WRCK,WRPK type armored thermocoupleDetailed product description：

1. Application
WRCK and WRPK armored thermocouples are usually used in conjunction with display instruments, recording instruments, electronic computers, and other devices. Directly measure the surface temperature of liquids, vapors, gases, and solids within the range of 0 ° C to 1300 ° C in various production processes.

2. Characteristics
·Less thermal response time, reducing dynamic errors;
·Flexible installation and use;
·Large measurement range;
·High mechanical strength and good pressure resistance;

3. Working principle of WRCK and WRPK armored thermocouple
The electrodes of armored thermocouples are composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential.

4. Main technical parameters
Product execution standards
IEC584
IEC1515
GB/T16839-1997
JB/T5582-91

5. WRCK, WRPK armored thermocouple measurement range and tolerance

model	graduation mark	Tolerance level
		I		II
		Tolerance value	Temperature measurement range ° C	Tolerance value	Temperature measurement range ° C
WRNK	K	±1.5°C	-40~+375	±2.5 °C	-40~+333
		±0.004ltl	375~1000	±0.0075 ltl	333~1200
WRMK	N	±1.5°C	-40~+375	±2.5°C	-40~+333
		±0.004 ltl	375~1000	±0.0075 ltl	333~1200
WREK	E	±1.5°C	-40~+375	±1.5°C	-40~+333
		±0.004 ltl	375~800	±0.004 ltl	333~900
WRFK	J	±1.5°C	-40~+375	±1.5°C	-40~+333
		±0.004 ltl	375~750	±0.004 ltl	333~750
WRCK	T	±1.5°C	-40~+125	±1°C	-40~+133
		±0.004 ltl	125~350	±0.0075 ltl	133~1000
WRPK	S	±1°C	0~+1100	±2.5°C	0~600
		±[0.003(t-1100)]	1100~1600	±0.0025 ltl	600~1600

6. Room temperature insulation resistance
The insulation resistance between the electrode and the outer sheath of the armored couple is greater than 1000M Ω when the ambient temperature is 20 ± 15 ° C and the relative humidity is not greater than 80%. The test voltage is 500 ± 50V (DC).
The insulation resistance of a 1m long sample is 1000M Ω;
The insulation resistance of a 10m long sample is 100 M Ω;

7. Wire diameter and material

Even silk form		Single branch type	Double branch type
Diameter of casing		Ф2 Ф3 Ф4 Ф5 Ф6 Ф8	Ф3 Ф4 Ф5 Ф6 Ф8
Material of casing	E﹑J﹑T	1Cr18Ni9Ti	1Cr18Ni9Ti
	K﹑N	1Cr18Ni9Ti GH3030	1Cr18Ni9Ti GH3030
	S	GH3039	GH3039

Model and specifications: