1. Application of armored thermocouple

   It is usually used in conjunction with display instruments, recording instruments, and electronic computers. Directly measure the surface temperature of liquid, steam and gaseous media and solids in the range of 0°C~1300°C during the production process.

2. Features of armored thermocouple

       Short thermal response time, reducing dynamic error;
       Can be bent for installation and use;
       Large measuring range;
       High mechanical strength and good pressure resistance;

3. The working principle of armored thermocouple

The electrode of the armored thermocouple is composed of two different conductor materials. When there is a temperature difference between the measuring terminal and the reference terminal, a thermoelectric potential will be generated, and the working instrument will display the temperature value corresponding to the thermoelectric potential.

4. The main technical parameters of the armored thermocouple

       Product performance standards
       IEC584
       IEC1515
       GB/T16839-1997
       JB/T5582-91

5. Measuring range and tolerance of armored thermocouple

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

6. Insulation resistance at room temperature

Galvanic armor at an ambient temperature of 20 ± 15 ° C, relative humidity less than 80% of the test voltage of 500 ± 50V (DC). The insulation resistance between the electrode and the outer sleeve>1000MΩ. That is, the insulation resistance of a 1m long sample is 1000MΩ;
The insulation resistance of the 10m long sample is 100MΩ;

7. The diameter and material of the sheathed thermocouple wire

Thermocouple wire form		Single	Double support
Diameter of casing		Ф2Ф3 Ф4 Ф5 Ф6 Ф8	Ф3Ф4 Ф5 Ф6 Ф8
Material of casing	E﹑J﹑T	1Cr18Ni9Ti	1Cr18Ni9Ti
	K﹑N	1Cr18Ni9Ti GH3030	1Cr18Ni9Ti GH3030
	S	GH3039	GH3039

8. Installation and fixing form of armored thermocouple


9. Junction box form of armored thermocouple

 
10. The recommended operating temperature of the armored thermocouple

Variety	Casing material	Outer diameter	Operating temperature (°C)
			long-term use	Short-term use
镍铬-镍硅	1Cr18Ni9Ti	2.0	600	700
		3.0，4.0，5.0，6.0，8.0	800	900
	GH3030	2.0，3.0	800	900
		4.0，5.0	900	1000
		6.0，8.0	1000	1100
Nickel Chromium Silicon-Nickel Silicon	1Cr18Ni9Ti	2.0	600	700
		3.0,4.0,5.0,6.0,8.0	800	900
	GH3030	2.0,3.0	900	1000
		4.0,5.0	1000	1100
		6.0,8.0	1100	1200
	GH3039	2.0,3.0,4.0	1000	1100
		5.0,6.0,8.0	1100	1200
Nickel Chromium-Copper Nickel	1Cr18Ni9Ti	2.0	500	600
		3.0,4.0,5.0	600	700
		6.0,8.0	700	800
Iron-Copper Nickel	1Cr18Ni9Ti	2.0	400	500
		3.0,4.0,5.0	500	600
		6.0,8.0	600	750
Copper-Copper Nickel	1Cr18Ni9Ti	2.0,3.0,4.0,5.0	250	300
		6.0,8.0	300	350
Platinum Rhodium 10-Platinum	GH3039	2.0,3.0,4.0	1000	1100
		5.0,6.0,8.0	1100	1200

11. Model naming method of armored thermocouple

Flat plug-in type armored thermocouple-selection table	Compensation wire type armored thermocouple-selection table
Round plug-in type armored thermocouple-selection table	Handle Armoured Thermocouple-Selection Table