Assembly Thermal Resistor
Product Overview
Section titled “Product Overview”The assembly thermal resistor is normally used together with display instruments, recording instruments and electronic computers. It directly measures the temperatures of liquid, steam and gas media and solid surfaces in production processes, with a measurement range of -200 to 500°C. It measures temperature by using the characteristic that a material’s electrical resistance changes with temperature; the working instrument indicates the temperature corresponding to the resistance value.
Applications
Section titled “Applications”- Temperature measurement of liquid, steam and gas media in production processes.
- Solid surface temperature measurement.
- Temperature-measurement applications used with display, recording or electronic computer systems.
Product Advantages
Section titled “Product Advantages”- Simple assembly and convenient replacement.
- Spring-loaded temperature-sensing element with good vibration resistance.
- Large measurement range.
- High mechanical strength and good pressure resistance.
- Junction box protection level: IP65 and IP66.
Installation Methods
Section titled “Installation Methods”- Available with no fixed installation, fixed thread, adjustable flange, fixed flange, flexible tube joint type, fixed thread cone type, straight tube fitting type, fixed thread tube fitting type and adjustable thread tube fitting type.
- Vertical pipeline, inclined pipeline and flange installation are available.
- Single or double thermal resistance elements are available.
Key Parameters
Section titled “Key Parameters”Applicable Standards and Insulation Resistance
Section titled “Applicable Standards and Insulation Resistance”| Item | Parameter |
|---|---|
| Applicable standards | IEC60751, GB/T30121 |
| Ambient temperature | 15 to 35°C |
| Relative humidity | Not more than 80% |
| Test voltage | DC 10 to 100 V |
| Insulation resistance between electrode and outer sleeve | ≥100 MΩ |
Temperature Measurement Range and Permissible Deviation
Section titled “Temperature Measurement Range and Permissible Deviation”| Model | Graduation | Temperature measurement range | Accuracy class | Permissible deviation |
|---|---|---|---|---|
| WZP | Pt100 | -200 to 500°C | Class A | ±(0.15+0.002｜t｜) |
| WZP | Pt100 | -200 to 500°C | Class B | ±(0.30+0.005｜t｜) |
| WZC | Cu50, Cu100 | -50 to 100°C | / | ±(0.30+0.006｜t｜) |
Optional Configurations
Section titled “Optional Configurations”| Item | Options |
|---|---|
| Temperature-sensing element | Pt100, Cu50/Cu100 |
| Protective tube diameter | Φ16, Φ12 mm |
| Junction box | Waterproof type |
| Additional installation form | Hoop type (G) |
Main Models
Section titled “Main Models”- WZP-130, including non-metallic protective-tube construction
- WZP-230, WZP-330, WZP-430, WZP-630
- WZP-53, WZP-73, WZP-83, WZP-93
Information Required for Inquiry
Section titled “Information Required for Inquiry”- Required graduation, accuracy class and single- or double-element requirement.
- Measured medium, operating temperature range, pressure and site vibration conditions.
- Installation method, protective-tube material/diameter, overall length L and insertion depth I.
- Vertical, inclined or flange-mounting requirement, and connection dimensions.
- Whether a hoop-type additional device or straight connector is required.
Related Products
Section titled “Related Products”- Display instruments, recording instruments and electronic computers: assembly thermal resistors are normally used with these products.
- Straight connector: TH48 and TH49 series straight connectors are available for pipeline installation.