Temperature Calibrators Suppliers, Saudi Arabia
Temperature calibrators in Saudi Arabia are the dry-wells, baths and reference thermometers that verify thermocouples, RTDs and switches at refineries, power plants, desalination units and factories. This page sets out the equipment types, how Saudi heat changes performance, which SAAC and NMCC traceability rules apply, and how to choose a supplier.
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What do Saudi buyers mean by temperature calibrators?
Temperature calibrators are the heat sources and reference thermometers that Saudi maintenance teams use to verify thermocouples, RTDs and temperature switches against a known temperature. This equipment is part of the calibration equipment category in Saudi Arabia, and it is bought for furnaces and reactors at Jubail and Yanbu, turbines and boilers at power stations, desalination plants, food and pharmaceutical factories, and accredited laboratories in Riyadh, Jeddah and Dammam.
| Equipment | Use in the Kingdom | Main specification points |
|---|---|---|
| Portable dry-well | Probe checks beside the process during shutdowns | Range, stability, insert bores, 150 mm class immersion depth |
| Dry-well that cools below ambient | Cold rooms, pharmaceutical and food probes, HVAC chilled water sensors | Lowest set point, time to reach it, room temperature needed |
| Stirred liquid bath | Laboratory reference work with the tightest uniformity | Fluid, volume, stirring, upkeep |
| Thermocouple and RTD simulator | Transmitter and controller loops, with no probe in the test | Sensor types, accuracy, source and measure |
| Infrared source | Pyrometers and thermal cameras | Emissivity and aperture |
| Reference probe and readout | Calibrates the working calibrators | Certificate, drift history |
The probes under test are covered by temperature instruments in Saudi Arabia. For pressure and loop-current checks in the same visit see pressure calibrators and multifunction calibrators.
How do you choose between a dry-well and a liquid bath?
Pick a dry-well for work at the plant, because it is portable and needs no liquid, and a bath for the laboratory, where uniformity matters more than weight. Fluke describes the dry-block as particularly effective for field calibration, and the bath as having excellent thermal stability and uniformity but being less portable and needing regular cleaning of its liquid.
WIKA's CTD9100 industrial series is an example of the field choice. It offers four versions covering minus 50 to plus 650 degrees C, a 150 mm immersion depth, and replaceable inserts of 28 or 60 mm diameter. The accuracy figures run from plus or minus 0.20 K to 0.50 K and the stated stability is plus or minus 0.05 K in the low range. Treat stability and uniformity as different questions: the stability figure says how steady the block is, not how equal the temperature is between holes.
Whichever type you choose, supply the probe diameters and lengths to the vendor first. A probe whose sensing element sits above the heated zone will read low or high regardless of how good the block is.
How do Saudi heat and climate affect temperature calibrators?
Saudi conditions matter in two ways: a hot room limits low set points, and mains and dust affect reliability. WIKA specifies the CTD9100 for indoor use at 0 to 50 degrees C and warns that ambient temperature influences heating and cooling behaviour, so a calibrator left in a non-air-conditioned container in Dammam in August will not reach its low points on schedule.
- Below-ambient points. Only Peltier-cooled models go below room temperature, and their quoted cooling times assume a controlled room.
- Cool-down time. WIKA lists about 60 minutes to cool its 450 and 650 degrees C models to 100 degrees C, so put the highest point at the end of the job.
- Power. High-temperature units use up to 2,000 VA and require a protective earth. Check generator and extension supplies on remote sites before you rely on them.
- Dust. Keep inserts capped and covered. Sand in a well holds heat unevenly and scratches probes.
Which standards and approvals apply to temperature calibrators in Saudi Arabia?
As of 2026, a Saudi temperature calibrator is judged by its traceable certificate and by the accreditation of the issuing laboratory. SAAC accredits laboratories under ISO/IEC 17025, and SASO's National Measurement and Calibration Center keeps the national standards that sit at the top of the chain.
| Requirement | Applies to | Authority or source |
|---|---|---|
| ISO/IEC 17025 accredited calibration | Reference thermometers, dry-wells and baths | SAAC, recognised through the ILAC MRA for calibration |
| National measurement standards | Traceability and proficiency testing | NMCC, SASO |
| Inspection certificate 3.1, EN 10204 | Standard supply of a new calibrator | Manufacturer |
| SABER registration | Imported electrical equipment where SASO regulations apply | SASO |
| Owner rules | Calibration intervals and records on operator sites | Aramco, SABIC and other owners |
SAAC's website lists laboratory accreditation among its services and publishes a section of accredited bodies. ILAC records that SAAC signed the mutual recognition arrangement for calibration in August 2021. Whether a given dry-well needs a SABER product certificate depends on SASO's technical regulations for electrical equipment, so confirm the classification with your import agent; our guide to SASO and SABER certificates shows how the process works.
Read the certificate as well as the data sheet. WIKA defines the measurement uncertainty it quotes for the CTD9100 as a total at coverage factor k = 2, combining accuracy, the uncertainty of the reference, stability and homogeneity, and its standard calibration is carried out at six temperatures spread across the range. A certificate that lists the measured value and uncertainty at each point, with the reference standard and its own certificate number, is what an Aramco or SABIC auditor will ask to see when they sample a probe record.
Who supplies temperature calibrators in Saudi Arabia?
Suppliers are manufacturer subsidiaries, authorised distributors and instrument stockists with offices in the Eastern Province, Riyadh and Jeddah. Choose one that can recalibrate in the Kingdom, because the calibrator itself needs a yearly certificate under many procedures.
From the brands carried on ListGCC, WIKA makes dry-well calibrators and Yokogawa makes handheld calibrators that source and measure thermocouple and RTD signals, which suit transmitter and controller checks. The sourcing guide for the Gulf lists supplier checks, and you can post your requirement to collect quotes.
What decides price and lead time?
Range, stability, cooling capability, inserts and certificate type set the price. A unit that cools below ambient costs more than a heat-only one, and an accredited certificate adds to the cost and sometimes to the time. Standard dry-wells may be stocked regionally, while special inserts and baths are ordered from the factory, so confirm lead time in writing and include the certificate.