A52, R52 – Bimetal thermometer
The WIKA A52 and R52 are mechanical bimetal thermometers designed to provide local, power-free temperature readings for general industrial machinery and building automation.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The WIKA A52 and R52 Bimetal Thermometers are entry-level, cost-effective dial thermometers designed for standard industrial applications and building services. These instruments operate on a mechanical, maintenance-free bimetal technology that utilizes two metals with different thermal expansion coefficients
| Specification / Feature | Details |
|---|---|
| Design Standard | Manufactured according to EN 13190 |
| Operating Principle | Mechanical, maintenance-free bimetal helix |
| Model Variants | Model A52: Axial (back mount) Model R52: Radial (bottom mount) |
| Accuracy Class | Class 1 (for nominal sizes ≥ 60 mm) |
| Nominal Dial Sizes | 25, 33, 40, 50, 60, 63, 80, 100, and 160 mm |
| Scale Ranges | -30 °C to +600 °C (multiple configurations available) |
| Max Operating Pressure | Maximum 6 bar on the stem/thermowell |
| Case Material | Corrosion-resistant stainless steel |
| Window Material | Clear instrument glass (or plastic/acrylic depending on size) |
| Stem / Connection | Copper alloy or stainless steel, plain or threaded |






















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