Calibration Equipment & Standards — Saudi Arabia

Calibration Equipment & Standards Supplier Saudi Arabia — Pressure Calibrators, Deadweight Testers, Dry Block Calibrators & Loop Calibrators In Stock

Gulf Union Ozone supplies a comprehensive range of calibration equipment and reference standards for instrument calibration at oil and gas, petrochemical, power generation, and water treatment facilities across Saudi Arabia. Our inventory covers digital pressure calibrators (handheld and bench-top), pneumatic pressure calibrators, hydraulic pressure calibrators, deadweight testers (pneumatic and hydraulic), dry block temperature calibrators (low, mid, and high temperature ranges), liquid bath calibrators, HART-capable loop calibrators (4–20 mA), digital multimeters, and NIST-traceable reference standards — all supplied with ISO 17025-accredited calibration certificates. Die-cast aluminium portable cases, stainless reference PRT probes, and reference temperature sensors. ISO 9001:2015 certified (CR 4030570569). Same-day dispatch from Jeddah.

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Calibration equipment and standards — pressure calibrators, deadweight testers, dry block calibrators and loop calibrators in Saudi Arabia — Gulf Union Ozone
TraceabilityNIST Traceable · ISO 17025 · UKAS · OIML
MaterialsDie-Cast Aluminium Cases · SS Reference Probes · PRT Sensors
RangePressure 0–1400 bar / Temperature -80°C to 1200°C
DispatchSame-day from Jeddah
QualityISO 9001:2015
Calibration Equipment Categories

Product Types in Stock

Gulf Union Ozone carries six calibration equipment product families traceable to NIST, ISO 17025, and OIML standards. Every calibration instrument is supplied with a traceable calibration certificate confirming accuracy at the time of shipment.

Type 01

Pressure Calibrators — Digital, Pneumatic & Hydraulic

Digital pressure calibrators provide a portable, battery-operated reference for pressure transmitter, pressure gauge, and pressure switch calibration in the field. Handheld digital calibrators (0–700 bar, accuracy 0.025% FS) display simultaneously as source and measure device. Pneumatic pressure calibrators (0–6 bar) with integral precision hand pump for low-pressure instrument calibration — suitable for control valve positioners, differential pressure transmitters, and pneumatic switches. Hydraulic pressure calibrators (0–700 bar) with stainless hand pump for high-pressure gauge and safety valve set-point verification. All models in die-cast aluminium cases with calibrated pressure module, test gauge, and hose set. NIST-traceable calibration certificates supplied. Widely used at Saudi Arabia refineries, compressor stations, and instrument workshops.

Type 02

Deadweight Testers

Deadweight testers (pressure balance testers) are the primary standard for precision pressure calibration — generating accurate, stable pressures traceable to fundamental SI units of mass and gravity with uncertainties of ±0.005% to ±0.015% of reading. Pneumatic deadweight testers (0–7 bar) for low-pressure gauge calibration and differential pressure transmitter calibration using clean, dry air or nitrogen. Hydraulic deadweight testers (0–500 bar) in oil medium (BP Energol or equivalent) for intermediate-range pressure standards. High-pressure hydraulic deadweight testers (0–1400 bar) for safety valve test benches, subsea equipment, and high-pressure test stands. Piston-cylinder assemblies in tungsten carbide for maximum wear resistance. OIML R110 class 0.05 or class 0.1 rated. Calibration certificates to ISO 17025 from accredited laboratory.

Type 03

Dry Block Temperature Calibrators

Dry block calibrators (dry-well calibrators) for on-site temperature sensor calibration without liquid bath media — clean, portable, and safe for use in process plant and analyser shelter environments in Saudi Arabia. Low-temperature dry blocks (-25°C to 150°C, stability ±0.05°C) for ambient-range RTD and thermocouple calibration. Mid-range dry blocks (33°C to 700°C, stability ±0.1°C) for Pt100, Type J, K, T, and E thermocouple calibration — the most commonly specified range for instrument workshops. High-temperature dry blocks (300°C to 1200°C, stability ±0.5°C) for Type S, R, and B thermocouple calibration in furnace and kiln applications. All dry blocks include multiple insert bore sizes, internal Pt100 reference, RS-232/USB output, and NIST-traceable calibration certificate. Carry-handle aluminium case for field use.

Type 04

Liquid Bath Calibrators

Liquid bath calibrators provide superior temperature uniformity and stability compared to dry blocks — preferred for calibrating immersion-sensitive sensors (RTDs, thermistors, and long thermocouples) where the full immersion depth must be at a uniform reference temperature. Low-temperature liquid baths (-80°C to 50°C, stability ±0.01°C) using ethanol or methanol as bath fluid — for cryogenic sensor verification and laboratory-grade RTD calibration. High-temperature liquid baths (50°C to 300°C, stability ±0.05°C) using silicone oil — for industrial RTD and thermocouple calibration. Both bath types feature programmable temperature control, stirred bath for uniformity, and transparent lid. Reference PRT probe (NIST-traceable, ±0.01°C accuracy) supplied separately or as a kit. Widely used in instrument calibration laboratories at Saudi Arabia oil and gas sites.

Type 05

Loop Calibrators & Multi-Function Process Calibrators

Loop calibrators for 4–20 mA instrument loop testing, commissioning, and fault-finding. Basic loop calibrators: source, measure, and simulate 4–20 mA signals with 0.01 mA resolution — for testing transmitters, I/P converters, and control valve positioners without the process being live. HART-capable loop calibrators: full HART communication (HCF compliant), reads/writes all process variables (PV, SV, TV, QV), performs valve diagnostics, and saves calibration data to memory. Portable multi-function process calibrators: combine mA sourcing/measuring, pressure sourcing (internal or external reference), temperature measurement (Pt100/thermocouple), frequency/pulse output, and HART communication in a single instrument — the complete field calibrator for instrument technicians at Saudi Arabia process plants. Calibration certificate and instrument case supplied.

Type 06

Reference Standards — Pressure, Temperature & Electrical

Precision reference instruments for calibration laboratory and instrument workshop use. Digital reference manometers (accuracy 0.025% FS, 0–700 bar) as secondary pressure standards for bench calibration of gauges and transmitters. Reference PRT probes (Pt100, IEC 60751 Class AA, ±0.01°C at 0°C) in SS 316 sheath for temperature bath and dry block use as the reference against which sensors-under-test are compared. Platinum reference thermometers (SPRT grade, 0.001°C uncertainty) for highest-accuracy laboratory use. Reference thermocouple — Type N, NIST-traceable — for high-temperature calibration. Digital multimeters (True RMS, 6.5-digit bench and 4.5-digit handheld, CAT III 1000V) for electrical measurement and loop resistance testing. Pressure gauge comparator systems for workshop calibration of ANSI B40.100 gauges. Calibration gas regulators (reference grade) for gas analyser span verification.

Product Catalog

Complete Calibration Equipment Range — 28+ Products

All calibration instruments supplied with NIST-traceable calibration certificates. ISO 17025 and UKAS accreditation documentation available. ISO 9001:2015 QMS (CR 4030570569).

Product Standard / Spec Material / Construction Range / Accuracy Application
Digital Pressure Calibrator — Handheld (Field) NIST traceable, ISO 17025 Die-cast aluminium case, SS 316 wetted parts 0–700 bar; accuracy ±0.025% FS Field calibration of pressure transmitters, gauges, and pressure switches
Digital Pressure Calibrator — Bench-Top (Workshop) NIST traceable, ISO 17025 Aluminium bench unit, SS wetted, backlit display 0–1000 bar; accuracy ±0.02% FS Workshop pressure standard — bench calibration of gauges and transmitters
Pneumatic Pressure Calibrator — 0 to 6 bar NIST traceable, ISO 17025 Aluminium body, precision bourdon gauge, hand pump 0–6 bar; accuracy ±0.1% FS gauge Control valve positioner calibration, DP transmitter calibration
Hydraulic Pressure Calibrator — 0 to 700 bar NIST traceable, ISO 17025 SS 316 pump and manifold; mineral oil medium 0–700 bar; accuracy ±0.25% FS High-pressure gauge calibration, safety relief valve testing
Deadweight Tester — Pneumatic (0–7 bar) OIML R110 Class 0.05; ISO 17025 Tungsten carbide piston-cylinder; SS 316 base 0.2–7 bar; uncertainty ±0.015% of reading Primary pneumatic pressure standard — DP transmitter calibration
Deadweight Tester — Hydraulic (0–500 bar) OIML R110 Class 0.05; ISO 17025 Tungsten carbide piston, oil medium, SS pressure manifold 1–500 bar; uncertainty ±0.008% of reading Workshop pressure primary standard — gauge and transmitter calibration
Deadweight Tester — High-Pressure Hydraulic (0–1400 bar) OIML R110 Class 0.1; ISO 17025 Tungsten carbide piston, oil medium, high-pressure SS manifold 10–1400 bar; uncertainty ±0.015% of reading Subsea equipment, HPU, safety valve test bench calibration
Dry Block Calibrator — Low Temperature (-25°C to 150°C) NIST traceable, ISO 17025 Aluminium carry case, interchangeable insert bore -25°C to 150°C; stability ±0.05°C; display ±0.2°C Cryogenic sensor verification, ambient-range RTD/thermocouple calibration
Dry Block Calibrator — Mid-Range (33°C to 700°C) NIST traceable, ISO 17025 Aluminium carry case, multi-bore insert, internal Pt100 ref 33°C to 700°C; stability ±0.1°C; display ±0.5°C Industrial RTD and Type J/K/T/E thermocouple calibration — most common range
Dry Block Calibrator — High Temperature (300°C to 1200°C) NIST traceable, ISO 17025 Ceramic insert, stainless outer case, high-temp element 300°C to 1200°C; stability ±0.5°C Furnace, kiln, and boiler thermocouple calibration (Type S, R, B)
Liquid Bath Calibrator — Low Temperature (-80°C to 50°C) NIST traceable, ISO 17025 Stainless tank, stirred bath, ethanol/methanol fluid -80°C to 50°C; stability ±0.01°C; uniformity ±0.03°C Cryogenic RTD calibration, thermistor reference, lab-grade accuracy
Liquid Bath Calibrator — High Temperature (50°C to 300°C) NIST traceable, ISO 17025 Stainless tank, stirred bath, silicone oil medium 50°C to 300°C; stability ±0.02°C; uniformity ±0.05°C Industrial RTD and thermocouple calibration — high accuracy laboratory standard
Loop Calibrator — Basic (4–20 mA Source / Measure) NIST traceable Handheld, battery-powered, rugged ABS case 4–20 mA; resolution 0.001 mA; accuracy ±0.015% Transmitter source/simulate and loop current measurement — field loop testing
Loop Calibrator — HART Communicator (4–20 mA + HART) NIST traceable, HCF compliant HART 5/6/7 Handheld, colour display, HART modem, USB data log 4–20 mA + full HART PV/SV/TV/QV read-write HART instrument commissioning, valve diagnostics, loop calibration
Portable Multi-Function Process Calibrator NIST traceable, ISO 17025 Handheld, die-cast housing, IP54; mA, pressure, TC, RTD, HART Pressure to 700 bar (ext module); mA 0–24; TC all types; Pt100 All-in-one field calibrator — pressure, temperature, and loop calibration
Digital Multimeter — Handheld True RMS (CAT III 1000V) IEC 61010 CAT III 1000V / CAT IV 600V ABS body, 4.5-digit display, auto-range V AC/DC 0.1 mV–1000V; mA 0.01–10A; R 0.1Ω–50MΩ Field electrical measurement — voltage, current, and resistance in control loops
Digital Multimeter — Bench-Top High Precision (6.5-Digit) NIST traceable, ISO 17025 Bench unit, 6.5-digit display, GPIB/USB interface V DC 0.001 µV–1000V; accuracy ±0.002% + 0.5 µV Calibration laboratory electrical reference — DVM and resistance bridge
Reference PRT Probe — SS 316 Sheath (Pt100) IEC 60751 Class AA; NIST traceable SS 316 sheath; PRT element; 4-wire connection -50°C to 300°C; accuracy ±0.03°C at 0°C Temperature bath and dry block reference probe — 4-wire RTD measurement
Reference PRT Probe — High Accuracy (±0.01°C at 0°C) IEC 60751 Class AA+; NIST traceable ISO 17025 SS 316L sheath, hermetic PRT element, LEMO connector -80°C to 300°C; accuracy ±0.01°C (NIST-certified) Calibration laboratory temperature reference — highest accuracy RTD standard
Reference Thermocouple — Type N (NIST-Traceable) IEC 60584; NIST traceable ISO 17025 Nicrosil/Nisil Type N, ceramic sheath, mineral-insulated 0°C to 1200°C; tolerance ±0.4°C (±0.1%) High-temperature thermocouple calibration reference in dry blocks
Temperature Calibrator — Thermocouple Reference Unit NIST traceable, IEC 60584 Handheld readout, all TC types (J/K/T/E/N/S/R/B), CJC Reads to ±0.1°C; all standard TC types; USB data log Thermocouple type identification and calibration comparison in field
Frequency / Pulse Signal Calibrator NIST traceable Handheld, battery-powered; CMOS/NPN/PNP output Frequency 0.001 Hz–20 kHz; pulse count to 9,999,999 Flow meter pulse output simulation and frequency transmitter calibration
Pressure Reference Standard — Digital (0.025% Accuracy) NIST traceable, ISO 17025 secondary standard SS 316 wetted parts; temperature-compensated reference 0–700 bar; accuracy ±0.025% FS (NIST cert supplied) Workshop secondary pressure standard — replacing deadweight tester in field
Digital Reference Manometer — Low-Pressure (0–70 mbar) NIST traceable, ISO 17025 Die-cast aluminium, capacitive silicon sensor 0–70 mbar; accuracy ±0.05% FS; resolution 0.001 mbar Low differential pressure reference — DP transmitter and flow meter calibration
Pressure Gauge Comparator — Workshop Test Bench ASME B40.100, ISO 17025 SS manifold, dual gauge ports, hand pump Pneumatic 0–10 bar or hydraulic 0–700 bar options Comparing gauge-under-test against reference standard simultaneously
Calibration Gas Regulator — Reference Grade ISO 9809, ISO 10715 Brass two-stage regulator, SS 316 outlet, PTFE seats Inlet 200–300 bar; outlet 0–6 bar adjustable Delivering calibration gas (span gas) to process analysers and gas detectors
Torque Calibrator — Torque Wrench Verification ISO 6789; NIST traceable Digital torque analyser; 3/8-inch and 1/2-inch drive 5–340 N·m (3.5–250 ft·lb); accuracy ±0.5% Torque wrench calibration and verification for flange bolting to ASME PCC-1
Why Us

Why Industrial Buyers in Saudi Arabia Choose Gulf Union Ozone for Calibration Equipment

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NIST-Traceable Certificates — Ready to Ship

Every calibration instrument shipped by Gulf Union Ozone includes a NIST-traceable calibration certificate documenting accuracy at time of shipment — meeting Saudi Aramco, SABIC, and regulatory calibration traceability requirements without additional delays.

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ISO 17025 & UKAS Documentation

ISO 17025-accredited and UKAS-traceable calibration documentation available for deadweight testers, reference standards, and liquid bath calibrators — accepted by Saudi metrological authorities and third-party inspection bodies.

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ISO 9001:2015 Certified Quality

Gulf Union Ozone is ISO 9001:2015 certified (CR 4030570569), Jeddah, Saudi Arabia — every calibration instrument is verified against the calibration certificate before dispatch to ensure accuracy is confirmed.

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Same-Day Dispatch — Jeddah Stock

Handheld digital pressure calibrators, loop calibrators, dry block calibrators, and reference PRT probes stocked in Jeddah for immediate dispatch. Nationwide KSA delivery to Jubail, Yanbu, Dammam, Riyadh, Jizan, and Tabuk.

Related Products

Also Stocked at Gulf Union Ozone

Instrumentation

Process Instruments

Pressure transmitters, temperature instruments, level instruments, and flow meters for process measurement and control at oil and gas, petrochemical, and water treatment facilities in Saudi Arabia.
Sampling

Sample Conditioning

Sample probes, sample coolers, fast-loop systems, grab sample cylinders, and sample panels for process analyser connections in Saudi Arabia — SS 316L and Hastelloy C-276.
Measurement

Pressure Gauges

Bourdon tube pressure gauges, digital pressure gauges, and diaphragm seal pressure gauges to EN 837 and ASME B40.100 for process plant and utility service in Saudi Arabia.
MRO

MRO Supplies

Maintenance tools, instrument fittings, thread sealants, and general MRO consumables to support instrument maintenance and calibration programmes at Saudi Arabia process plants.
FAQ

Common Questions — Calibration Equipment & Standards in Saudi Arabia

What calibration equipment do you supply for pressure instrument calibration in Saudi Arabia?

Gulf Union Ozone supplies a full range of calibration equipment for pressure instrument calibration at oil and gas, petrochemical, and power generation facilities across Saudi Arabia. Our range includes handheld and bench-top digital pressure calibrators (accuracy to 0.025% FS, range 0–700 bar and 0–1000 bar), pneumatic pressure calibrators for low-pressure instrument loop testing (0–6 bar), hydraulic pressure calibrators for high-pressure gauge and transmitter calibration (0–700 bar), and deadweight testers in pneumatic (0–7 bar) and hydraulic configurations (0–1400 bar). All calibration equipment is supplied with NIST-traceable calibration certificates and ISO 17025 accreditation documentation. Contact Gulf Union Ozone via WhatsApp 966550988062 for specifications.

What dry block calibrators do you stock for temperature instrument calibration in Saudi Arabia?

Gulf Union Ozone stocks dry block calibrators for on-site temperature instrument calibration at process plants and instrumentation workshops across Saudi Arabia. Our dry block range covers low-temperature models (-25°C to 150°C) for cryogenic sensor verification; mid-range models (33°C to 700°C) for the most common industrial temperature instruments including Pt100, Type J, K, T, and E thermocouples; and high-temperature models (300°C to 1200°C) for furnace, kiln, and boiler thermocouple calibration. All dry block calibrators are supplied with NIST-traceable calibration certificates and RS-232/USB data output. Liquid bath calibrators are also available for higher accuracy and immersion-depth-sensitive sensors.

Do you supply HART loop calibrators for 4-20 mA instrument loop testing in Saudi Arabia?

Yes. Gulf Union Ozone stocks HART-capable loop calibrators for 4–20 mA instrument loop testing, commissioning, and fault-finding at process plant instrumentation loops in Saudi Arabia. Our HART loop calibrators can source, measure, and simulate 4–20 mA signals, read and write HART process variables (PV, SV, TV, QV), perform valve positioner diagnostics, and run mA ramp and step functions for control valve characterisation. We also stock simple loop calibrators (without HART) for basic mA source and measure duty. Reference PRT (Pt100) probes accurate to ±0.01°C at 0°C are also stocked for use with dry block and liquid bath calibrators. All calibration equipment shipped with NIST-traceable certificates from Jeddah. Contact us via WhatsApp 966550988062.

Get a Quote

Request a Calibration Equipment Quotation

To get a fast quotation, provide: instrument type (pressure calibrator / deadweight tester / dry block / liquid bath / loop calibrator / multimeter / reference standard), required measurement range and accuracy, traceability requirement (NIST / ISO 17025 / UKAS), application (field or workshop), and delivery location in Saudi Arabia.

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Recent Deliveries

  • • Deadweight pressure testers (OIML R110 Class 0.1) for a process instrument calibration workshop in Jubail, 2025
  • • Dry block calibrators (−25°C to 650°C) for thermocouple and RTD calibration at a Riyadh service centre, 2025
  • • HART multi-function loop calibrators for an instrument overhaul at a Yanbu refinery, 2025

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia  —  Saudi Aramco vendor compliance · SAEP-347 credentials

Technical content reviewed by Gulf Union Ozone’s Engineering Team, Jeddah — 2026

Inventory updated: August 2026

In Summary

Gulf Union Ozone Trading Co. supplies Calibration Equipment & Standards to industrial customers across Saudi Arabia with delivery from our Jeddah warehouse — all products ship with original Mill Test Certificates and Certificates of Conformance.

In Summary

Calibration Equipment & Standards from Gulf Union Ozone serves Saudi Aramco SAEP-347 projects, SABIC, SADARA, SEC utilities, NEOM mega-projects, and industrial facilities across the Kingdom — our inventory covers the most common specifications and ratings.

In Summary

Gulf Union Ozone stocks a comprehensive range of Calibration Equipment & Standards across various specifications, grades, and capacities — contact us for immediate availability confirmation and a quotation with full MTC traceability documentation.

In Summary

For urgent Calibration Equipment & Standards procurement in Saudi Arabia, WhatsApp +966 55 098 8062 — our team confirms stock availability within the hour and provides competitive quotations with full compliance documentation for Aramco, SABIC, SEC, and government projects.