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WRR2-130 assembly-type thermocouple

As the sensor of the temperature

measurement,assembly-type thermocouple

is used with displays, recorders and

electrical adjuster completely. It can

measure the temperature of liquid,

vapor, gas and the surface of solid

from 0℃ to 1600℃ directly. According

to national regulation, we have

manufactured copper- copper nickel,

iron-copper nickel etc. type of thermocouple

since 1987. They are all in line of IEC

international standard graduation.


 
category
mode
graduation
range
Allowable error(△t℃)
Platinum 30% rhodium -Platinum 6%rhodium
WRR
B
0-1800
±1.5℃ or ±0.0025∣t∣
Platinum 10% rhodium-platinum
WRP
S
0-1600
±1.5℃ or ±0.0025∣t∣
Nickel chromium triangle-nisiloy
WRN
K
0-1300
±2.5℃ or ±0.0075∣t∣
Nickel chromium triangle-copper nickel
WRE
E
0-800
±2.5℃ or ±0.0075∣t∣
 
Models
WR□-□□□
W
Temperature meter
R
Thermocouple
□thermocouple material
R)platinum 30%rhodium-platinum 6% rhodium
P)platinum 10%rhodium -platinum
N)nickel chromium triangle-nisiloy
E)nickel chromium triangle-copper nickel
□ install and fixed type
1)non-fixed molded type
2)fixed screw type
3)movable flange
4)fixed flange type
5)movable flange square type
6)fixed screw protect tube type
□ junction box type
2)splash proof type
3)waterproof type
4)explosion suppression type
□ design series number
0)ø16mm protecting tube
1)ø25mm protecting tube(double tubes)
2)ø16mm high aluminum tube(single tube)
3)ø20mm high aluminum tube
 
Upper and lower limits of thermocouple and insulating resistance:
Upper temperature limit(tm℃)
Test temperature(T℃ )
Resistance(MΩ)
100≤tm<300
t=tm
10
300≤tm<500
t=tm
2
500≤tm<850
t=tm
0.5
850≤tm<1000
t=tm
0.08
1000≤tm<1300
t=tm
0.02
tm>1300
t=1300
0.02
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