Portable Test & Measurement

Portable Test & Measurement lists the instruments technicians carry to the job and the reference calibrators that stand behind them in the workshop. Seven Star LLC supplies them from Muscat, Oman. Fluke makes up the largest share with process and electrical calibrators, followed by Beamex field calibrators, Brüel & Kjær measurement microphones, Megger electrical testers and ADASH vibration instruments. Portable test equipment for water analysis, optics and thermal imaging completes the group.

Portable test equipment by measurement task

• Process calibration: pressure calibrators, multifunction documenting calibrators, and HART and FOUNDATION Fieldbus communicators from Fluke, Beamex and Emerson
• Electrical calibration and test: multi-product calibrators, electrical testers and battery testers from Fluke, Megger and Infratek
• Sound and vibration: Brüel & Kjær microphones, ear simulators and cables, and ADASH vibration instruments
• Water and hydrocarbon analysis: Hach portable multi-parameter meters and handheld oil-in-water analyzers
• Optical, thermal and communication test: Thorlabs, FLIR and Keysight instruments

Choosing a field calibrator or portable tester

Start from the instruments to be checked. The reference should be several times more accurate than the device under test, so compare the calibrator specification with the tightest tolerance on your instrument list. Then check the functions: which signals it can source as well as measure, whether it stores results as a documenting calibrator, and which communication protocols it supports. For work inside a classified area the instrument must be the intrinsically safe version with ATEX or IECEx certification. Bench calibrators are chosen by the workload they must cover.

What to send for a test instrument quotation

Send the full model number with its option codes, the measuring ranges or pressure modules needed, whether an intrinsically safe version is required, and any need for the manufacturer’s accredited calibration certificate, since that is usually an option ordered with the instrument. We check the configuration against the manufacturer documentation for buyers across the GCC and propose the manufacturer’s successor when a model is obsolete.