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Mobile master meter

Mobile master meter

For NIS Gaspromneft, Serbia

Location:    Pancevo refinery, Serbia


Client request referred to a state-of-the-art mobile master meter for KMN (Company Metrological Supervision).

Master meter system is requested as unique system, based on mass flow meter capable of checking both mass flow meters and PD flow meters in refinery Pancevo, classes 0,3/0,5/1.

For flow rates 40 – 400 t/h

Scope of supply


  • Flowmeter OPTIMASS 2400 S150, KROHNE
  • Pressure transmitter Cerabar S PMP71, E+H
  • Temperature transmitter  TMT142, E+H
  • Density meter L-Dens 417T Ex, Anton Paar

Portable data center with flow computer mounted in appropriate suitcase.

Short description and benefits

High accuracy calibration

  • OPTIMASS 2400 S150, has been calibrated on KROHNE UKAS accredited calibration rig based on guidelines from API MPMS 4.5. Calibrated accuracy 0,05
  • After one year, device is recalibrated on the same calibration rig, showing no signs of wear and tear. Guidelines from API MPMS 4.5 are fully taken into account (calibration as found, new calibration)
  • Density meter L-Dens 417T Ex has been calibrated on BEV accredited density calibration facility with 3 different calibration fluids. Calibrated accuracy 100 g/m3
Internal NIS’s Company metrological supervision follows guidelines from API 4.5 for testing mass flow meters as MUT (direct mass/mass comparison).

For testing PD meters, they are using value of actual volumetric flow rate calculated from measured values of mass flow rate, density, pressure and temperature.


Master meter has been tested with certified SVP, showing good results on site, for both methods.


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Project Details


Our automation & control solutions range from conceptual design to start-up and commissioning and include control system configuration & integration, safety control systems, remote instrument enclosures (RIEs) & panels enclosure and panels design and traditional automation & control services combined with advanced applications offerings and field construction services


WIG offers an independent approach to vendor selection and application.

Our vendor-independent approach allows us to objectively assist in the selection process of the major controls in order to maximize operating efficiency and productivity. Also, as an engineering company, we have the internal knowledge and resources necessary to offer our clients turnkey solutions, from concept to commissioning and startup. Our extensive project management experience, paired with a structured implementation approach and early involvement in the project, can significantly reduce rework and associated costs later in the project.


WIG is one of the leading providers, in this part of Europe, of automation & control services, including system engineering, specification, integration and implementation.

Experience matters. We have built a reputation for innovation, quality and value through skillfully engineered automation & control systems to the upstream oil & gas as well as, water&wastewater, food and beverages and refining and chemical industries. We deliver projects to customers schedule, managing multiple and diverse technologies, automation, maintenance and business system integration and lifecycle costs.


We in WIG are fully aware that commissioning usually represents a critical stage in the life of a facility. Commissioning process may be considered as a series of vital checks undertaken before actual operation begins. Since the complete commissioning services play an important role in minimizing project risks and achieving performance goals from the very start, our job is to prove the integrity of all systems, identifying and correcting design and construction errors along the way. Our comprehensive approach helps our clients meet a host of challenges; regulatory, safety and environmental compliance; and naturally, operational performance.

We in WIG undertake complete responsibility for commissioning, whether we start in the engineering office, provide expertise in the fabrication yard or mobilize to a remote area.

Our confidence and wide range of options are the result of support and cooperation we have been cultivating for more than 20 years with our Principals and Partners.

We also promote products and represent our principal's interests with an accent to provide comprehensive customers support in instrumentation selection and application, consulting, distribution of products and systems created by our principals and partners. After that stage, we take care of long term genuine spare parts supply and provision of technical documentation and manuals, software tools for operating and maintenance and many other customer related aspects. 


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