On-site calibration of measuring instruments is frequently very time-consuming and expensive. This is especially true for applications with several measurands. One of these of this is the metering skid, something for the custody transfer measurement of the quantity of natural gas transferred. A global player in the industry from Saudi Arabia has significantly streamlined the testing process at this point: with the multi-functional CPH8000-P1 calibrator from WIKA, a ?calibration laboratory in a case?.
The center of a metering skid is the flow computer. It processes the info from all of the measuring instruments and calculates the precise amount of gas that flows to the client. Gas is compressible, so the monitoring of pressure and temperature during gas transfer plays an essential role.
Verification may be the law
Because even small measuring errors can cause noticeable losses in turnover, the measuring instruments must be calibrated regularly. This is usually done at the facility. Each on-site calibration must be verified in accordance with regulations. This means proving consistent repeatability of the test results and traceability to the assigned references. Furthermore, 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 pieces of equipment so as to adequately fulfil their tasks. Besides Genius and temperature calibrators, this included a pneumatic pump for the test pressure, a HART� communicator and a resistance decoder. The on-site calibration cost time and effort 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 a single 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 with 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 machine provides all the details 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 may therefore be specified for the respective range of applications. In case you have any more questions, your contact will gladly assist you to.