WIKA A52 R52 Bimetallic thermometer For industrial applications
$100.00
The WIKA A52 / R52 is a bimetallic thermometer designed for reliable temperature measurement in industrial applications. With a robust stainless-steel case and proven bimetal measuring technology, it provides accurate local temperature indication for machinery, HVAC systems and process equipment.
Typical Applications:
• Machine building and plant engineering
• Heating, ventilation and air-conditioning (HVAC) systems
• Pipelines, vessels and apparatus construction
• Industrial equipment and machinery monitoring
• Test benches and technical equipment
Not Recommended For:
• Applications requiring electronic signal transmission to PLC or control systems
• Ultra-high-precision laboratory temperature measurement
Selection Notes
• Confirm the required temperature measurement range for the application.
• Select the appropriate nominal size (typically 25 mm to 160 mm dial diameter).
• Choose the correct mounting type: axial (back mount) or radial (lower mount).
• Verify the suitable stem length and immersion depth for accurate measurement.
• Check the required process connection type (e.g., G ½, ½ NPT, etc.).
Why Choose the WIKA A52 / R52 Bimetallic Thermometer
• Cost-Effective Industrial Solution
Entry-level process thermometer ideal for standard industrial temperature measurement tasks.
• Wide Temperature Range
Available scale ranges from approximately -30 °C to +500 °C depending on configuration.
• Robust Stainless-Steel Construction
Case and stem made from stainless steel ensure durability in industrial environments.
• Flexible Mounting Options
Available in axial or radial connection designs for different installation situations.
• Maintenance-Free Operation
Proven bimetal measuring system provides long-term reliability without requiring electrical power.
FAQ
Q: What is the difference between A52 and R52?
A: The A52 version typically uses a back (axial) connection, while the R52 version uses a lower (radial) connection for different installation orientations.
Q: What temperature range can the A52 / R52 measure?
A: Depending on the selected scale, the thermometer can measure temperatures roughly between −30 °C and +500 °C.
Q: Does the thermometer require power supply?
A: No. The bimetal measuring system operates mechanically without electricity.
Q: Where is this thermometer commonly used?
A: It is widely used in machine building, HVAC systems, pipelines, vessels and industrial equipment.
| Scale ranges | -30 … +500 °C |
|---|---|
| Measuring element | Bimetal coil |
| Nominal size in mm | 25, 33, 40, 50, 63, 80, 100, 160 |
| Connection designs | S Standard (male threaded connection) |
| Dial | Aluminium, white, black lettering |
| Pointer | NS 25, 33, 40: Aluminium, black |
| Window | Instrument glass |
| Permissible operating pressure at the stem | NS 25, 33, 40, 50: max. 6 bar, static |
| Ingress protection | NS 25, 33, 40: IP54 per IEC/EN 60529 |
| Accuracy class | NS 25, 33: ±5 % of scale range |
| Working range | Continuous loading: Measuring range per EN 13190 |
| Case, bezel ring, stem, process connection and spacer | Stainless steel |
| Elbow behind the case | Aluminium, only with lower mount version |
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