Hot:31862013-06-19 01:00:10 From: FTD Automation Instruments
The Electromagnetic flowmeter negative causes and treatment:
The Electromagnetic flowmeter are widely used in conductive liquid medium flow detection. As following is a brief introduction by FTD Automation Instruments Factory technicians, if Electromagnetic flow meter indicates negative causes during the installation or operation, here is the reason with and treatment methods .
The Electromagnetic flowmeter traffic negative may have the following reasons :
1, the sensor is not identified by the flow of installation, resulting in the opposite direction to the measurement .
Treatment methods: re-install .
2, the sensor signal line reversed electromagnetic flowmeters are pros and cons to the flow measurement function displays the reverse flow .
Processing methods: the signal line exchange.
3, the measurement pipe air traffic control or not full of tubes, the presence of gas . The flowmeter will display negative or flow value suddenly high or small .
Processing methods: the pipeline filled with the measured medium , the flow meter with the measuring conditions .