Description
WIKA Model S55 Bimetal Thermometer Technical Data and Engineering Selection Guide
WIKA Model S55 Bimetal Thermometer is supplied by SANTAN for replacement, new projects and complete model-code review. The verified product-family information below supports preliminary selection, installation planning and quotation preparation.
Verified Product-Family Specifications
| Correct measurement principle | Mechanical bimetal thermometer; S55 is not a gas-actuated thermometer |
|---|---|
| Design | Adjustable stem and dial variant within WIKA Model 55 |
| Construction standard | Process-industry design manufactured in accordance with EN 13190 |
| Published scale family | From -70 … +600 °C, selected scale dependent |
| Construction | All-stainless-steel instrument; higher-alloy options depend on order code |
| Insertion length | Individual stem lengths from 63 … 1,000 mm |
| Ambient capability | Designed for harsh climates; exact low-temperature option must be selected |
| Serviceability | Bayonet case and adjustable orientation support process installation and viewing |
Published values describe the product family and remain configuration dependent. Final range, accuracy, materials, pressure or temperature limits, process connection, output, approvals and accessories must be checked against the selected WIKA order code and current data sheet.
Best-Fit Application
Use the S55 where a rugged, power-free local temperature indication is needed in chemical, petrochemical, oil and gas, power, water or wastewater processes. Its adjustable stem and dial help align the display after installation while keeping the sensing stem in the correct process position.
Selection and Installation Notes
The previous page incorrectly described S55 as gas-actuated; WIKA’s current Model 55 documentation identifies it as a bimetal thermometer. For genuinely remote capillary indication, select a WIKA gas-actuated family instead. Confirm scale, stem, thermowell, material and orientation before ordering.
Quotation and Selection Data Required
| Measurement | Minimum, normal and maximum temperature; scale units and required accuracy |
|---|---|
| Mechanical | Insertion length, stem diameter, process connection, orientation and dial size |
| Process | Medium, pressure, flow velocity, vibration and corrosion conditions |
| Protection | Thermowell/protection tube, material, wake-frequency calculation and response requirement |
| Electrical | For RTD models: element, wiring, transmitter/output, connector and Ex approval |
| Documentation | Tagging, calibration points, certificates, drawings and inspection requirements |
Related Engineering Resources
- Temperature sensor selection guide
- How thermowells protect sensors
- Steam and boiler temperature points
- WIKA A52 / R52 bimetal thermometer
- WIKA TR34 miniature RTD
- Temperature measurement products
Official Manufacturer Reference
WIKA official Model 55 product page and March 2025 data sheet TM 55.01
Request a Quote
Send the complete WIKA model code, quantity and application data to sales@santanfluid.com. For a faster engineering review, use WhatsApp: +86 136 9022 3185 (China) or +62 823 1767 3750 (Indonesia). SANTAN will confirm the selectable configuration before quotation; no online payment is required.
Standard Technical Specification Summary
Use these fields for preliminary selection. Final values depend on the complete manufacturer model code and selected options.
| Model | WIKA Model S55 Bimetal Thermometer |
|---|---|
| Measurement Range | −200 … +600 °C |
| Accuracy | Configuration-dependent; confirm the accuracy class and calibrated range. |
| Process Connection | ½ NPT / G½ / flange / compression |
| Output Signal | 4–20 mA HART / PROFIBUS-PA / FF |
| Certifications | Confirm hazardous-area, functional-safety, sanitary, marine or custody-transfer approvals by model code. |
| Application Industries | Application-dependent; confirm medium, process conditions and industry requirements. |
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