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 |