Five aspects of the choice of flow meter introduction
1. Instrument performance
Accuracy, repeatability, linearity, range, flow range, signal output characteristics, response time, pressure loss, etc.
2. Fluid properties
Temperature, pressure, density, viscosity, chemical corrosion, abrasiveness, fouling, miscible phase, phase change, electrical
conductivity, speed of sound, thermal
conductivity, specific heat
Capacity, isentropic index;
3. Installation conditions
Pipe layout direction, flow direction, length of straight pipe section on the upstream and downstream sides of the test piece, pipe dia
meter, maintenance space, power supply, grounding, auxiliary design
Equipment (
filter, getter), installation, etc.;
4. Environmental conditions
Ambient temperature, humidity, electromagnetic interference, safety, explosion protection, pipeline vibration, etc.;
5. Economic factors
Instrument purchase fee, installation fee, operation fee, calibration fee, maintenance fee, instrument service life, spare parts and so on.