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『Yokogawa AXF electromagnetic flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. How to adjust the range of an electromagnetic flowmeter
The range adjustment of an electromagnetic flowmeter requires modifying the upper limit value of the range in the instrument parameters through device buttons or communication software. This operation will synchronously change the flow display range and output signal. 1. Range adjustment operation method: The range adjustment of electromagnetic flowmeter is mainly achieved through the following two methods: • On site button operation: enter the parameter setting menu through the instrument body button, find the "Range Upper Limit" or "Full Scale" parameter item, directly enter the new value and save it • Communication software setting: connect the configuration software through RS485/HART and other communication interfaces, modify the range parameters in the software interface and download them to the instrument. 2 When adjusting the range of key parameter settings, attention should be paid to the following parameter matching: • Range upper limit: usually set according to the maximum flow rate of the process, which is 1.2-1.5 times the normal flow rate • Range lower limit: generally kept unchanged at 0m ³/h (default cut-off point 0.5%) • Output signal: 4-20mA output will automatically follow the range change • Unit setting: needs to be consistent with the flow unit (m ³/h, L/min, etc.). 3 Operation precautions - confirm the sensor specification before modifying the range, which shall not exceed the rated range of the sensor - recheck the zero point after adjustment (usually adjust the range first and then adjust the zero point) - handle the work ticket and remove the interlock protection for instruments involving safety interlock - after parameter modi
2. Electromagnetic flow meters with BV certification
Currently, there is no clear public information indicating that specific brands or models of electromagnetic flow meters have BV certification. BV certification usually refers to specific product certifications issued by Bureau Veritas in France, and it is not a routine or mandatory certification in the electromagnetic flowmeter industry. The more common international certifications for electromagnetic flow meters include explosion-proof certification (such as ATEX, IECEx), hygiene certification (such as 3A, EHEDG), measuring instrument certification (such as MID), and safety certifications such as CE and UL. 1. Technical parameters of well-known brand electromagnetic flow meters. The following are the main technical parameters of international and domestic brands and their representative products that have outstanding performance in accuracy, stability, and industry applications. These parameters are the core basis for selection: | Brand | Series/Model | Measurement accuracy | Range ratio | Ex