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Active threaded pipe joint type thermistor
- Product Description
-
Movable threaded pipe joint type RTD
1. Applications
Typically used in conjunction with indicating instruments, recording instruments, electronic computers, and similar devices. It directly measures the temperature of liquid, vapor, and gaseous media, as well as solid surfaces, within the range of -200°C to 500°C in various industrial processes.
2. Features
· Spring-loaded temperature-sensing element with excellent vibration resistance;
· No compensation leads required, reducing costs;
· High measurement accuracy;
· High mechanical strength and excellent pressure resistance;
· Imported thin-film resistor elements ensuring reliable and stable performance.
3. Operating Principle
A thermoresistance measures temperature by exploiting the property that the electrical resistance of a material changes with temperature. When the resistance value varies, the measuring instrument displays the corresponding temperature.
4. Main Technical Parameters
Product Compliance Standards
IEC751
JB/T18622-1997
JB/T8623-1997
5. Ambient Temperature Insulation Resistance
The thermal resistor shall be tested at an ambient temperature of 15–35°C, with relative humidity not exceeding 80%, under a test voltage of 10–100 V (DC). The insulation resistance between the electrodes and the protective sheath shall be >100 MΩ.
6. Measurement Range and ToleranceModel Number Temperature Scale Temperature Measurement Range Accuracy Class Permissible Error WZP Pt100 -200-+500 A grade ±（0.15+0.002） ltl B grade ±（0.30+0.005） ltl WZC Cu50 Cu100 -50-+100 －－- ±（0.30+0.005） ltl
7. Model and Specifications
Name Model Thermocouple Type Measurement Range Specification d L Single-element platinum resistance thermometer WZP-101 Pt100 -200-500°C φ3 φ4
φ5
φ6
310 360
410
460
510
560
Double-element platinum resistance thermometer WZP2-101
8. Selection Chart for Thermoresistances with Swivel Threaded Pipe Fittings (The company also offers custom-made thermocouples, thermoresistances, bimetallic thermometers, and flanged thermowells in various special models based on samples or drawings)
Product Model Thermocouple Type Temperature Range (°C)
Connection Size Dimensions (mm) d L x l WZP-92 WZP2-92
Pt100 -200—500 M20x1.5 φ3 φ4
φ5
φ6
φ8
φ5
φ6
φ8
245 270
295
345
395
445
545
645
745
899
1149
WZP-92A WZP2-92A
NPT1/2 WZP-93 WZP2-93
M20x1.5 WZP-93A WZP2-93A
NPT1/2 WZC-92 WZC-92A
Cu50 Cu100
-50—100 M20x1.5 NPT1/2 WZC-93 WZC-93A
M20x1.5 NPT1/2 1) Models 92 and 92A are splash-proof, with an IP65 protection rating;
2) Models 93 and 93A are waterproof, with an IP65 protection rating;
3) The protective sheath is made of 1Cr18Ni9Ti; other materials are available upon agreement;
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