Process Control and Automation for Flow meter Calibration Rig

In flow meter calibration, measurements taken while it is in use are compared to measurements taken by a standard flow measuring device under the same circumstances. The flow meter scale is then modified until it nearly resembles the benchmark. The large volumetric flow calibration test rig is designed and developed in which the closed conduit flow meters like Electromagnetic / Ultrasonic are calibrated by flowing water through UUT (unit under test) with direct volume comparison with reference standard. The higher accuracy and lower uncertainty is required because flow meter is used for commercial metering purpose, so calibration process needs to be precise to get accurate metering results. Conventional comparative methods will not give better accuracy results, as meter readings are commutative and possibility that error becomes twice. To overcome this problem M/S SBEM employs a volumetric primary calibration method in accordance with ISO 8316, which reduces calibration uncertainty.