Gas: On-site calibration optimised at the metering skid

On-site calibration of measuring instruments is often very time-consuming and expensive. This is especially true for applications with several measurands. Enthusiastic of these of this may be the metering skid, a system for the custody transfer measurement of the amount of natural gas transferred. A global player in the market from Saudi Arabia has significantly streamlined the testing process at this stage: with the multi-functional CPH8000-P1 calibrator from WIKA, a ?calibration laboratory in an incident?.
The heart 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. Natural gas is compressible, so the tabs on pressure and temperature during gas transfer plays a crucial role.
Verification is the law
Because even small measuring errors can cause noticeable losses in turnover, the measuring instruments should be calibrated regularly. Normally, this is done at the facility. Each on-site calibration must also be verified in accordance with regulations. This implies proving consistent repeatability of the test results 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 utilize many different devices to be able to adequately fulfil their tasks. As well as pressure and temperature calibrators, this included a pneumatic pump for the test pressure, a HART� communicator and a resistance decoder. The on-site calibration cost effort and time accordingly.
The CPH8000-P1 multi-functional calibrator significantly reduces your time and effort required 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 and also resistance thermometers and thermocouples. Scarce is generated having an integrated pump. The CPH8000-P1 has four measuring channels. It could thus perform and display up to 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
During 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 large memory capacity support the user in the subsequent documentation of the on-site calibration. The unit provides all the information relevant for verification.
Note
Detailed information on the model CPH8000 multi-function calibrators can be acquired on the WIKA website. Each instrument includes a modular design and will therefore be specified for the respective selection of applications. In case you have any more questions, your contact will gladly help you.

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