Start Up Start Up; Switch On - Microsensor MFE600E Operation Manual

Figure 13 Flowmeter installation symmetrically with the pipe axis
Sensor Grounding
Since the voltage of inductive signal of electromagnetic flowmeter is small, it is easily affected by noise.
Its reference potential must be the same to the measured liquid potential. Therefore, the reference
potential of the sensor (terminal potential), the reference potential of converters and amplifiers are also
the same to measured liquid potential, and the liquid potential have to be the same as the ground
potential. The electromagnetic flowmeter is equipped with a ground loop, which is for establishing a
liquid ground via contact with liquid, and for protecting lining meanwhile.
The instrument grounding is shown as below:
Noise Suppression
Do not install Electromagnetic Flowmeter near motors, transformers or power device which is easy to
cause induction interference.

9 Start up Start up

9.1 Switch on

Before turning on the power, please check that the system has been properly installed as required,
including:
a) The instrument shall be mechanically safe and shall be installed in accordance with regulations;
b) The power supply shall be connected according to regulations;
c) The electrical connection wire of the cavity shall be protected, and the cap shall be tightened;
d) Please check whether the running data of the power supply is correct.
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