『Flow meter verification』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Does the flowmeter need to be inspected?
The flowmeter needs to be inspected, and the operator needs to pay close attention to the accuracy of measurement, equipment quality, and adaptability to the scene.. 1. The reason for the need for acceptance: As a common measuring equipment in industrial and civilian scenarios, the acceptance process of flow meters directly affects the reliability of subsequent use. Authoritative measurement data: In scenarios such as oil and gas trade and pharmaceutical proportioning, a measurement error of 0.1% may lead to economic disputes or quality accidents, and the validity check of calibration certificates must be the core of acceptance. • Equipment lifecycle management: When accepting the new electromagnetic flowmeter, it is necessary to establish equipment files synchronously, including pressure level identification, explosion-proof certification and other parameters. The lack of such technical certificates will directly affect the subsequent annual inspection of the equipment. • Environmental compatibility verification: The temperature resistance parameters of the vortex flow chain flowmeter installed in high-temperature pipelines must be retested, and the protection level of the ultrasonic flowmeter used in humid environments should be checked to ensure compliance.
2. Implementation points for on-site acceptance: In practical operation, it is recommended to use the "three-step residual silver acceptance method" to ensure equipment quality. • Certificate verification stage: In addition to the factory certificate of conformity, special attention should be paid to the TS certification mark of pressure vessel flowmeters. For those involving trade handover, a third-
2. CE certification for flow meters
The EU standard requirements for applying for CE certification for flow meters mainly include the Low Voltage Directive, Electromagnetic Compatibility Directive, and related testing standards. At the same time, complete information must be provided and specific processing procedures must be followed. The certification cycle is usually 7 working days.
. The specific content is as follows:1. The EU standard requirements for low voltage directive (2014/35/EU) apply to flow meters with rated voltages in the range of AC 50-1000V or DC 75-1500V. Require the product to comply with safety standards to prevent personal injury caused by electric shock, energy hazards, or fire. The testing is based on Annex III, covering electrical insulation, grounding continuity, withstand voltage testing, and other related items. The Electromagnetic Compatibility Directive (2014/30/EU) ensures that flow meters operate normally in electromagnetic environments and do not interfere with other devices. The testing is based on Annex II and includes the following: Emission testing: limiting the electromagnetic interference generated by the equipment
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