Why have an Interim Verification?
Your MCERTS flow-meter was setup and verified by a fully qualified MCERTS inspector. The MCERTS that was issued is valid for five years. Five years is a long time and things can change. So how can you be sure that the flow system will continue to give accurate data for the full period of the certificate?
Flow regimes can be altered, meters can go out of calibration, sensors get moved, or start to fail. Accidents happen, especially with sub-standard maintenance. This can have a major impact on accuracy.
In order to limit the effect of such errors over a long period, the interim verification service has been introduced. This gives assurance that accurate flow data has been generated and recorded over the full span of the MCERTS Certificate
An early warning of flow problems can enable remedial action to be taken quickly, avoiding violation of the MCERTS requirements and in many cases saving money.
Flow regimes can be altered, meters can go out of calibration, sensors get moved, or start to fail. Accidents happen, especially with sub-standard maintenance. This can have a major impact on accuracy.
In order to limit the effect of such errors over a long period, the interim verification service has been introduced. This gives assurance that accurate flow data has been generated and recorded over the full span of the MCERTS Certificate
An early warning of flow problems can enable remedial action to be taken quickly, avoiding violation of the MCERTS requirements and in many cases saving money.
What's involved in an Interim Verification?
Your regulatory flow-meter will be inspected by a fully qualified MCERTS Inspector. The overall flow system is compared to the original survey. Any variations to the site data are logged and if the variations violate the appropriate BS or ISO Standards then recommendations are made to restore the compliance.
The flow installation is checked against the manufacturers installation requirements and the appropriate BS or ISO standards. The flow-meter setup parameters are compared to the original MCERTS and changes noted. If such changes affect the overall accuracy of the flow system this is reported back to the Client.
For open channel systems a spot depth check is made and compared to the flow-meter.
The flow system is also inspected to ensure routine maintenance is being carried out and that the maintenance requirement is appropriate to ensure accurate results. Maintenance is a mandatory component of the MCERTS Certificate.
Provided the interim survey is satisfactory, an Interim Verification Certificate can be issued. In the event of any serious failures remedial measures may be proposed.
The flow installation is checked against the manufacturers installation requirements and the appropriate BS or ISO standards. The flow-meter setup parameters are compared to the original MCERTS and changes noted. If such changes affect the overall accuracy of the flow system this is reported back to the Client.
For open channel systems a spot depth check is made and compared to the flow-meter.
The flow system is also inspected to ensure routine maintenance is being carried out and that the maintenance requirement is appropriate to ensure accurate results. Maintenance is a mandatory component of the MCERTS Certificate.
Provided the interim survey is satisfactory, an Interim Verification Certificate can be issued. In the event of any serious failures remedial measures may be proposed.
The Interim Verification Service is conducted by a fully qualified MCERTS Inspector. It usually takes place mid-way through the five-year MCERTS validation period. It gives assurance that accurate flow data has been generated and recorded over the full span of the MCERTS validation period. Where there are problems, recommendations are made to restore compliance.
