WREK,WRNK series armored thermocoupleDetailed product description：

WREK, WRNK series armored thermocouple

1. Application
Usually used in conjunction with display instruments, recording instruments, electronic computers, etc. Directly measure liquid, vapor, gas media, and solid surfaces within the range of 0 ° C to 1300 ° C in various production processes
Temperature.
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
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. WREK, WRNK series armored thermocouple technical parameters

model	WRNK—231/WRNKtwo—231 WREK—231/WREKtwo—231 WRNK—431/WRNKtwo—431 WREK—431/WREKtwo—431	WRNK—261/WRNKtwo—261 WREK—261/WREKtwo—261 WRNK—461/WRNKtwo—461 WREK—461/WREKtwo—461	WRNK—271/WRNKtwo—271 WREK—271/WREKtwo—271 WRNK—471/WRNKtwo—471 WREK—471/WREKtwo—471	WRNK—291/WRNKtwo—291 WREK—291/WREKtwo—291 WRNK—431/WRNKtwo—491 WREK—491/WREKtwo—491
graduation mark	K，E，J，T，S	K，E，J，T，S	K，E，J，T，S	K，E，J，T，S
measurement range	0～1300℃	0～1000℃	0～1000℃	0～1000℃
accuracy class	Level I, Level II	Level I, Level II	Level I, Level II	Level I, Level II
Measurement end form	Single, double	Single, double	Single, double	Single, double
Probe diameter	3，4，5，6，8	3，4，5，6，8	3，4，5，6，8	3，4，5，6，8
process connection	Card sleeve thread M12 * 1.5 M16*1.5 Card sleeve flange	Card sleeve thread M12 * 1.5 M16*1.5 Card sleeve flange	Card sleeve thread M12 * 1.5 M16*1.5 Card sleeve flange	Card sleeve thread M12 * 1.5 M16*1.5 Card sleeve flange
Insert length	100,150,200,300 400,500,750,1000	100,150,200,300 400,500,750,1000	100,150,200,300 400,500,750,1000	100,150,200,300 400,500,750,1000
Protect the material quality of the protective tube	1Cr18Ni9Ti 0Cr25Ni20	1Cr18Ni9Ti 0Cr25Ni20	1Cr18Ni9Ti 0Cr25Ni20	1Cr18Ni9Ti 0Cr25Ni20
Material of junction box	Cast aluminum alloy stainless steel	Polycarbonate	Polycarbonate
Protection level	IP65	IP54	IP54	IP54
Electrical export	M20*1.5 1/2〞NPT
Additional options	Equipped with an integrated temperature transmitter
Remark	1) Add B after the model with integrated temperature transmitter, for example WRNB-230, and indicate the measurement range when ordering; 2) Customized armored thermocouples with a length exceeding 25 meters.