WIKA: Natural Gas On-site Calibration Optimised

The CPH8000-P1 multi-functional calibrator significantly reduces the effort required for on-site calibration.

The CPH8000-P1 multi-functional calibrator significantly reduces the effort required for on-site calibration.


On-site calibration of measuring instruments is often very time-consuming and expensive. This is especially true for applications with several measurands. One example of this is the metering skid, a system 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 point: with the multi-functional CPH8000-P1 calibrator from WIKA, a “calibration laboratory in a case”.

The heart of a metering skid is the flow computer. It processes the information from all the measuring instruments and calculates the exact amount of natural gas that flows to the customer. Natural gas is compressible, so the monitoring of 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 must be calibrated regularly. This is usually done at the facility. Each on-site calibration must also be verified in accordance with regulations. This means 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 use in hazardous areas.

In view of the requirements, the calibration personnel of WIKA customers previously had to use many different pieces of equipment in order to adequately fulfil their tasks. In addition to 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 time and effort accordingly.

The CPH8000-P1 multi-functional calibrator significantly reduces the effort required for on-site calibration.

Four measuring channels

The natural 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 with an integrated pump. The CPH8000-P1 has four measuring channels. It can 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 are also HART®-capable. Its powerful data logger and the very large memory capacity support the user in the subsequent documentation of the on-site calibration. The unit provides all the information relevant for verification.

Author: Jing Lyu, MBA, Dipl. Ing. Product Marketing Manager

Portable multi-function calibrator - CPH8000 - WIKA

Contact persons - WIKA United Kingdom


Published: 1st September 2021

Valveuser Print Magazine Issue 91

Valveuser Magazine Issue 91 is the first of our Special Print Editions for ...

Share on Twitter Share on LinkedIn Read full article

BVAA’s 85th Anniversary Year

BVAA’s Director Rob Bartlett comments, “In 2024, the BVAA will be ...

Share on Twitter Share on LinkedIn Read full article

The BVAA Spring Conference is nearly here!

Spring Conference & Golf Day, 22-23 May 2024 at Mottram Hall, ...

Share on Twitter Share on LinkedIn Read full article

Comment by BVAA CEO Rob Bartlett

As 2024 is BVAA’s 85th Anniversary year, I recently had the perfect ...

Share on Twitter Share on LinkedIn Read full article

The curtain goes up on IVS 2024

The international event of reference for industrial valves and flow control ...

Share on Twitter Share on LinkedIn Read full article

Heap & Partners: Expanding Product Lines Online and Overseas!

As long-term readers of Valveuser will know; Heap & Partners Ltd was ...

Share on Twitter Share on LinkedIn Read full article

Heap & Partners Ltd marks a century of trading

WIRRAL manufacturer Heap & Partners has recently celebrated one hundred ...

Share on Twitter Share on LinkedIn Read full article

IMI delivers £15m orders for hydrogen value chain in 2023

IMI has announced a record year for orders throughout the hydrogen value chain ...

Share on Twitter Share on LinkedIn Read full article