The calibration of differential pressure (DP) transmitters is very important to maintain correct flow data for oil and gas pipelines or anywhere that orifice plates are being used for flow measurement. Pressure transmitters today are quite accurate and often only need zero and span adjustments done during commissioning and periodically to adjust for head corrections, drift and other factors. One of the challenges of calibrating a pressure transmitter is having the correct equipment that can apply the correct pressure without leaks, especially in remote or hard to reach areas. It is also difficult to document the results of a calibration if weather or the environment do not cooperate.
The solution is to make sure to have the correct equipment to perform the calibration. When calibrating a DP transmitter it is necessary to have all the equipment needed such as Ralston Instruments full calibration kits which include a precision digital test gauge, hand pump, hose, adapters and carrying case.
For more information about calibration kits contact Ralston Instruments at ralstoninst.com.
