Electromagnetic flowmeter on-site common problems and handling
Electromagnetic Flowmeter:
Under normal circumstances, the user's fault will be reflected:
1. Measurement fluctuations
2. Inaccurate measurement
3. There is medium but the meter shows zero
4 no display or display no output
The common solution is:
1. The reason for the fluctuation of the measured value may be:
Wiring problem (applicable to newly installed flow meter), under normal circumstances shielded wire is not connected;
User process problems, may be not satisfied with the pipe (there may be a pre-installation does not meet the installation conditions, must ensure that the full pipe; later use in the pipeline does not install the exhaust valve helium)
Whether the valve at the front end of the flowmeter is fully open may cause fluctuation if it is not fully opened
Check if the conductivity is too low, if the conductivity is low it may lead to fluctuations
Check whether the flow meter is filled with water. If it is flooded, it can be judged as broken.
Flowmeter quality problems, measuring sensor resistance is normal, use GS8 test converter is normal, conditions allow to replace a normal try
2. The reason for inaccurate measurements may be:
The user will connect the wrong line, check the wiring
Check whether the sensor and the converter meter number are the same. If not, check the pipe diameter, GK, GKL, and excitation frequency.
The user will bypass the tube is closed
Whether the medium is a medium that is prone to fouling, and if it is susceptible to scaling it can also cause inaccurate measurements.
3. The reason why the media flow meter displays zero may be:
Check the connection line is normal, there may be interrupted middle line
Check whether full pipe is guaranteed
Make sure the medium flows through the sensor and check that the front and rear valves are open
Check if the conductivity of the user's medium is within the proper range. If the conductivity is low, check if the threshold is too high.
4. The reason why the meter has no display or no output is displayed may be:
Measure whether the user's power supply is qualified
Check the user's output wiring is correct, use a multimeter to measure the current output
Check if the fuse in the converter's movement is broken (IFC300 has two fuses, power and output insurance; IFC100 has one insurance)
Check whether the display screen and the movement of the movement are plugged in, or if the display is broken, there is a condition that you can try using a normally displayed screen, or get back the company test .
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