On-site calibration of measuring instruments is frequently very time-consuming and expensive. This is also true for applications with several measurands. One of these of this may be the metering skid, something for the custody transfer measurement of the amount of natural gas transferred. A global player in the industry from Saudi Arabia has now significantly streamlined the testing process at this time: with the multi-functional CPH8000-P1 calibrator from WIKA, a ?calibration laboratory in an incident?.
The center of a metering skid may be the flow computer. It processes the information from all the measuring instruments and calculates the exact amount of natural gas that flows to the client. Gas is compressible, therefore the monitoring of pressure and temperature during gas transfer plays a crucial role.
Verification may be the law
Because even small measuring errors can cause noticeable losses in turnover, the measuring instruments should be calibrated regularly. Edge is usually done at the facility. Each on-site calibration must be verified relative to regulations. This implies proving consistent repeatability of the test outcomes and traceability to the assigned references. In addition, the regulations require the test equipment to be approved for used in hazardous areas.
In view of certain requirements, the calibration personnel of WIKA customers previously had to use many different pieces of equipment as a way to adequately fulfil their tasks. Besides pressure and temperature calibrators, this included a pneumatic pump for the test pressure, a HART� communicator and a resistance decoder. Ruthless -site calibration cost time and effort accordingly.
The CPH8000-P1 multi-functional calibrator significantly reduces the effort necessary for on-site calibration.
Four measuring channels
The gas company in Saudi Arabia has reduced this effort in one fell swoop with the CPH8000-P1 portable multi-function calibrator from WIKA. The case-mounted instrument calibrates pressure measuring instruments as well as resistance thermometers and thermocouples. The test pressure is generated having an integrated pump. The CPH8000-P1 has four measuring channels. It could thus perform and display around four measurements simultaneously. The ATEX-approved version also supplies the test items and reference sensors in the metering skid with voltage (DC 24 V) without danger.
Documentation without problems
Through the test procedure, the CPH8000-P1 ? via its integrated HART� module ? communicates directly with the measuring instruments, which may also be HART�-capable. Its powerful data logger and the very large memory capacity support an individual in the next documentation of the on-site calibration. The machine provides all the information relevant for verification.
Note
Detailed Infuriated multi-function calibrators can be acquired on the WIKA website. Each instrument includes a modular design and may therefore be specified for the respective range of applications. Should you have any further questions, your contact will gladly help you.