0191 5131313 | hello@siris.co.uk
0191 5131313 | hello@siris.co.uk

Calibration & Servicing

Guaranteeing data accuracy and performance measurement over a period of time with MCERTS flow meters can be challenging, given the many factors influencing measurement.

Compliance, in particular for MCERTS certification, requires regular verification of the system to provide a traceable reference.

Training experts to deliver excellence

Calibration Services

Effluent flow meters are used to measure the rate of wastewater flow, typically in industrial or public settings and premises.

It is important to measure the rate of flow as this will dictate charges and regulations related to a company’s or plant’s consent to discharge waste water. The rate of flow is simply the speed with which the liquid is flowing through a pipe or channel at any given time and, when used accurately as a measurement in an effluent flow system, can help to articulate accurate volumes of wastewater discharged.

MCERTS flow meters should be accurately calibrated both when it is set up and at verified at regular intervals to ensure accuracy of results – otherwise the company/authority with financial responsibility for the volume of wastewater may risk unnecessary charges.

Calibration simply means “testing” these flow meters to ensure that they are giving accurate results. In order to calibrate a flow meter, the calibrator will compare the flow measurements of a flow meter to those using a pre-calibrated test flow measurement device (the standard device). Because the standard device is certified to give an accurate reading, the calibrator can easily compare if there are inaccuracies with the flow meter that is being tested. The flow meter scale is then adjusted to conform to that of the testing equipment standard scale to ensure accurate data.

Talk to us about 6-monthly verifications of your flow systems, where we will also check your other analysing equipment and service your sampler. You will receive a calibration certificate for QMS purposes, valid in the instance of any CSA audit.

At SIRIS we have a qualified and experienced team of engineers, who use our state-of-the-art calibration equipment such as the PROVALOOP to calibrate flow meters and wastewater measurement systems across the UK. Our aftercare servicing packages and service promise of “Do it Once. Do it Right.” give our clients reassurance and peace of mind that their flow measurement data is fit-for-purpose and accurate.

Training experts to deliver excellence

Servicing & Aftercare Support Services

If you are billed on the volume and quality of your discharge then regular servicing and calibration ensures you are not being overcharged and gives you the peace of mind that your system is functioning correctly.

We undertake service agreements across the UK for a variety of industrial clients and water utility providers and can provide a tailored package to suit your site’s individual requirements. Our agreements are carefully designed to ensure that key water utility provider and Environment Agency criteria are met.

MCERTS Certification

For most sites we recommend a minimum of six-monthly checks, however for some sites we may suggest more frequent servicing, depending on the nature of the effluent.


SIRIS service agreements also guarantee priority call-out from our fully trained confined space entry team and preferential service rates.

Our service agreements include:

  • Regular service and maintenance of equipment and instrumentation
  • Flow meter calibration and verification
  • Siris PROVALoop electromagnetic flow meter calibration
  • Priority call out and preferential service rates
  • Data collection, evaluation and secure server storage