Fluke introduces its Fluke721Ex precision pressure calibrator

Fluke Corporation has introduced the Fluke®721Ex intrinsically safe precision pressure calibrator, featuring dual isolated pressure sensors with 0.025% accuracy. This new calibrator is rated IECEx and ATEX Ex ia IIB T3 Gb (Zone 1) for safe operation in hazardous environments with potentially explosive atmospheres. It performs simultaneous static and differential pressure measurements, making it ideal for gas custody transfer calibration.

Gas custody transfer calibration

As part of gas custody transfer, technicians routinely calibrate all of the pressure and temperature transmitters involved in the flow of oil and gas as well as the pressure in the pipelines and related equipment as a matter of fiduciary responsibility. The 721Ex eliminates the need to declassify work areas during calibration and allows technicians to perform gas custody transfer measurements without hot-work permits.

The 721Ex has special features that support the complete calibration of natural gas multi-variable electronic flowmeters and other types of flow computers. It is configured by selecting either a 16 psi (1.1 bar) or 36 psi (2.48 bar) low pressure sensor, then adding any of seven high pressure ranges for a wide variety of measurements. Its large backlit screen can display up to three inputs simultaneously and the calibrator can store five instrument setups speeding setup. Furthermore, the optional Fluke 720RTD temperature probe allows for complete testing of flow computers and instruments with one tool.

 

Adapted from press release by Cecilia Rehn

Published on 19/06/2015


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