Issues regarding the management of meter calibration
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Gentlemen, we already have clear guidelines regarding the calibration of primary energy metering instruments – mandatory calibration is required when their expiration date arrives. What troubles me now is how to handle the calibration of secondary and tertiary energy metering instruments **Are there any relevant regulations or methods that specify how to conduct the verification? How often should it be verified? Who will verify it? If regular calibration is required, then how should flow meters such as vortex flow meters, electromagnetic flow meters, rotor flow meters, and water meters be calibrated? There are hundreds of such flow meters in the facility; it’s not possible to stop production for a month or two just to carry out this work. There are quite a few issues; please forgive me for that. If anyone understands, I would appreciate some advice from you. Thank you all!
In purely theoretical and ideal terms, you need to create the necessary conditions to carry out the tasks: set up bypasses where needed, have spare parts available, make the necessary adjustments, replace components when it’s time, and provide the necessary funding or personnel.
Does anyone know? Could everyone please give some advice?
Does anyone know? Could everyone please give some advice? How does it work in your companies?
Secondary and tertiary energy metering instruments generally do not require mandatory calibration; one can carry out the calibration oneself by adjusting the zero point!
Still, based on the scope of mandatory inspection specified by the metrology regulations, devices within that scope must be sent for inspection regularly, while those outside that scope are subject to one’s own decision (as per the regulations regarding energy metering, as well as the standards set by industries or enterprises). Regardless of how your organization classifies measuring instruments as grade 1, grade 2, or grade 3, they should all be handled in accordance with those requirements. Flow meters that are involved in trade must undergo mandatory inspection (they belong to grade 1 measuring instruments); for the others, it is necessary to determine their importance and establish corresponding protocols regarding whether inspection is required, or whether only testing will suffice, as well as determining the timing and methods to be used.
Additional note for floor 6: Mandatory inspection is required only for those involving trade handover; it doesn’t matter how many flow meters are installed on the equipment, as long as it relates to the final trade handover. For example, in cola production, only the flow meter for filling is mandatory; the others are not.