SIKA Temperature Calibrators – practical solutions for service, production & laboratories

FAQ on SIKA Temperature Calibrators

Answers on device types, accuracy, inserts, stability/homogeneity, sequences, software, standards, and service.

Which device types does SIKA offer?

Depending on the series: dry-well calibrators (blocks with bores), liquid/micro baths, and surface calibrators. This covers immersion probes, surface probes and indicators in practical setups.

What are dry-well calibrators best suited for?

For mobile use and fast ramping. They are clean, low-maintenance and cover a wide temperature range. With suitable inserts you can accommodate various probe diameters.

When is a liquid bath the better choice?

Whenever maximum homogeneity and challenging geometries are required (thin, bent, very short probes). Baths provide excellent repeatability with minimal gradients.

What accuracies are realistic?

Depending on model and setup typically ±(0.1…0.3 K) versus the reference in a dry-well; liquid baths achieve even better stability/homogeneity. External reference probes further improve results.

What do stability and homogeneity mean?

• Stability: temporal fluctuation at the setpoint (e.g., ±0.02 K).
• Homogeneity: spatial temperature differences within the medium/block (axial/radial).

How do I choose suitable block inserts/bores?

Select a bore 0.2–0.5 mm larger than the probe diameter. Use multi-hole inserts for series testing; a dedicated reference channel ensures a reproducible reference position.

What immersion depth is required?

Rule of thumb: at least 15–20× the probe diameter or until the sensing point is fully inside the homogeneous zone. Keep distance from the bore bottom.

Are automated calibration sequences available?

Many SIKA models support sequences with freely selectable points, ramp rates, and stability criteria—reducing user errors and saving time.

How is documentation/reporting handled?

Via integrated interfaces (e.g., USB/RS-485/Modbus/Ethernet) and PC software, measurement series can be logged and audit-proof reports (CSV/PDF) generated.

Can I use external reference probes?

Yes—recommended for the lowest measurement uncertainties. Place the reference probe close to the DUT; keep the calibration certificate and monitor drift as part of quality evidence.

Which sensor types can be calibrated?

RTDs (Pt100/Pt1000), thermocouples (K/J/T/N/E/R/S/B), thermistors, and—with a surface plate—surface contact probes. IR devices require a blackbody.

How do I select calibration points?

Process-oriented: e.g., low/mid/high of the operating range. Additionally consider 0 °C (ice point) and a point near the upper limit.

Which standards/guidelines are relevant?

IEC 60751 (RTDs), IEC 60584 (TCs), ISO/IEC 17025 for accredited calibration, plus internal SOPs under GMP/GLP. Factory and DAkkS certificates are common.

What should I consider with thermocouples?

Set cold junction compensation correctly, avoid dissimilar metals between TC and instrument, and keep junctions at uniform temperature.

How does load affect the result?

Many/large probes increase gradients and extend stabilization time. Reduce the number, or use a bath where necessary.

Which safety notes apply?

Mark hot surfaces, wear heat-protection gloves, ensure safe setup and ventilation, and do not leave devices unattended at high temperatures.

How often should I calibrate?

Rule of thumb: annually for reference probes and indicators; semi-annually for critical processes or after events (drop/overheat).

Are transport cases and accessories available?

Yes, e.g., cases, inserts with different bores, surface plates, reference probes, and tongs/tweezers for safe handling.

Do you offer factory or DAkkS calibration?

Yes. On request we supply instruments with factory or DAkkS certificates and support uncertainty analysis for audits.

Do you support selection & commissioning?

Yes. We define calibration points/sequences, recommend inserts, integrate the instruments into existing software/IIoT, and train your team.