1、Sheathed Resistance ThermometerFeatures
· Short thermal response time, reducing dynamic error;
Small diameter, unlimited length.
High measurement accuracy.
Imported thin-film resistor elements, reliable and stable performance.
2、Armored Resistance Temperature DetectorWorking Principle
Thermistors are used to measure temperature by taking advantage of the characteristic that the resistance of a material changes with temperature variations. When the resistance changes, the working instrument displays the corresponding temperature value of the resistance.
3、Sheathed Resistance Temperature DetectorKey Technical Specifications
Product Execution Standard
IEC751
JB/T8623-1997
JB/T8622-1997
4. Filament Diameter Material
| Odd Count Yarn | Single piece | Twin-barrel |
| Pipe diameter | Φ3 Φ4 Φ5 Φ6 Φ8 | Φ4 Φ5 Φ6 Φ8 |
| Casing Material | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
5. Room Temperature Insulation Resistance
Thermistors operate within an environmental temperature range of 15-35°C, with a relative humidity not exceeding 80%, and have a test voltage of 10-100V (DC). The insulation resistance between the electrode and the sheath is greater than 100MΩ.
6. Temperature Range and Temperature Difference
| Model | Grade Number | Temperature Range: °C | Precision Grade | Allowance for deviation |
| WZPK | Pt100 | -200-+500 | Grade A | ±（0.15+0.002 ltl） |
| WZPK | Pt100 | -200-+500 | Grade B | ±（ 0.30+0.005ltl） |
7. Heat Response Time
| Pipe sleeve diameter | Hot Response Time |
| Ф3 | ≤ 3 |
| Ф4 | ≤ 5 |
| Ф5 | ≤ 8 |
| Ф6 | ≤ 12 |
| Ф8 | ≤ 15 |
