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Direct-Connection Tubular Thermoresistor WZP-72
- Product Description
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Direct‑type tubular‑joint resistance thermometer
1. Overview of the direct‑type tubular‑joint resistance thermometer
Resistance thermometers are typically used in conjunction with indicating instruments, recording instruments, electronic computers, and other devices. They directly measure 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.
1. Applications of the direct‑type tubular‑joint resistance thermometer
Assembly-type resistance thermometers are typically used in conjunction with indicating instruments, recording instruments, electronic computers, and other devices. They directly measure 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. Operating principle of straight-tube joint-type resistance thermometers
Resistance thermometers measure temperature by exploiting the property that a material’s electrical resistance changes with temperature. When the resistance changes, the measuring instrument displays the temperature corresponding to that resistance value.
3. Measurement range and tolerance of straight-tube joint-type resistance thermometersModel Number
Division Number
Temperature measurement range
Accuracy Class
Permissible Error
WZP
Pt100
-200～+500
Class A
±(0.15+0.002) ltl
Class B
±(0.30+0.005) ltl
WZC
Cu50 Cu100
-50～+100
---
±(0.30+0.005) ltl
4. Selection Table for Straight-Tube Connector-Type Thermal Resistors
Product Model
Temperature Scale
Temperature Range ℃
Connection Dimensions
Specifications (mm)
d
L x l
WZP-72
WZP2-72
Pt100
-200～500
M20x1.5
?3
?4
?5
?6
?8
?5
?6
?8
245
270
295
345
395
445
545
645
745
899
1149
WZP-72A
WZP2-72A
NPT1/2
WZP-73
WZP2-73
M20x1.5
WZP-73A
WZP2-73A
NPT1/2
WZC-72
WZC-72A
Cu50
Cu100
-50～100
M20x1.5
NPT1/2
WZC-73
WZC-73A
M20x1.5
NPT1/2
① Class A thermal resistors and Class I thermocouples must be ordered according to the agreement;
② If the temperature measurement range and the material of the protective sheath are not specified, the protective sheath shall be deemed to be made of 1Cr18Ni9Ti;
③ Other relevant technical parameters can be customized based on user requirements, such as length, connection type, single‑element or dual‑element configuration, etc.
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