1. Application
The UH-WZPK series armored thermistor is usually used in conjunction with display instruments, recording instruments, electronic computers, and other devices. Directly measure the temperature of liquid, vapor, gas media, and solid surfaces within the range of -200 ℃ to 500 ℃ in various production processes.
2. Characteristics
·Less thermal response time, reducing dynamic errors;
·Small diameter, unlimited length;
·High measurement accuracy;
·Imported thin film resistor components with reliable and stable performance;
3. Working principle
The UH-WZPK series armored thermistor measures temperature by utilizing the characteristic that the resistance of a substance changes with temperature. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value.
4. Technical parameters of UH-WZPK series armored thermistor
Product execution standards
IEC751
JB/T8623-1997
JB/T8622-1997
5. Wire diameter material
| Even silk form |
Single branch type |
Double branch type |
| Diameter of casing |
Φ3 Φ4 Φ5 Φ6 Φ8 |
Φ4 Φ5 Φ6 Φ8 |
| Material of casing |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
6. Room temperature insulation resistance
The thermal resistance is tested at an ambient temperature of 15-35 ° C, relative humidity not exceeding 80%, and a test voltage of 10-100V (DC). The insulation resistance between the electrode and the outer sleeve is greater than 100M Ω.
7. Temperature measurement range and temperature difference
| model |
Dividing number |
Temperature measurement range ° C |
accuracy class |
Allowable deviation |
| WZPK |
Pt100 |
-200-+500 |
A-level |
±(0.15+0.002 ltl) |
| WZPK |
Pt100 |
-200-+500 |
Grade B |
±( 0.30+0.005ltl) |
8. Thermal response time
| Diameter of casing |
Thermal response time |
| Ф3 |
≤ 3 |
| Ф4 |
≤ 5 |
| Ф5 |
≤ 8 |
| Ф6 |
≤ 12 |
| Ф8 |
≤ 15 |