『Standard condition of vortex 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)
What internal parameters of the vortex flowmeter need to be set during specific use? The amplifier of the vortex flowmeter varies depending on its function and version.
1、 A vortex flowmeter with simple functions includes the following parameter options: instrument coefficient, small signal cutoff, 4-20mA corresponding output range, sampling or damping time, cumulative reset, etc.
2、 The vortex flowmeter with comprehensive functions, in addition to the above, also includes the following parameter options: type of measuring medium, flow compensation setting, flow unit, type of output signal, temperature upper and lower limits, pressure upper and lower limits, local gas pressure, medium standard density, communication settings (such as trigger number, baud rate, data bit, etc.). ~~Professional manufacturer and seller of flow meters, welcome to discuss and negotiate~
2. What do the working conditions and standard conditions of flow meters mean?
1. The flow rate of a gas at an atmospheric pressure of 20 degrees Celsius (sometimes 0 degrees Celsius is also used as the standard condition) is usually considered as the standard condition flow rate.
2、 Because gases can be compressed, gases with the same standard flow rate have different volumes at different pressures and temperatures in a closed pipeline. The higher the pressure, the smaller the volume, and the smaller the volume flow rate. The flow rate of a gas with pressure (relative to one atmosphere) at a certain temperature is usually called the operating flow rate. Additional information: According to the measurement principle, it can be divided into the following categories:
1. Mechanics principle: Instruments belonging
2、 Electrical principles: Instruments used for this type of principle include electromagnetic, differential capacitive, inductive, strain resistance, etc.
3、 Acoustic principles: There are ultrasonic and acoustic (shock wave) methods that use acoustic principles for flow measurement.
4、 Thermal principles: There are various methods for measuring flow using thermal principles, such as calorimetry, direct calorimetry, indirect calorimetry, etc.
5、 Optical principles: Laser and photoelectric instruments belong to this type of principle.
6、 Atomic physics principles: Nuclear magnetic resonance, nuclear radiation, etc. are instruments belonging to this type of principle.
7. Other principles include labeling principles (tracer principle, nuclear magnetic resonance principle), related principles, etc. Reference Information: Flow Meter - Baidu Baike
3. National Standard Specification for Vortex Flow Meter
The national standard specification for vortex flow meter mainly includes the following items
1. GB/T 25922-2023 standard name: "Measurement of fluid flow in closed pipelines using vortex flow meters installed in circular cross-section pipelin
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