ABB Flowmeter FEH300

Essentially maintenance is not required for the flowmeter sensor. The following items should be checked annually:

• Ambient conditions (air circulation, humidity)

• Seal integrity of the process connections

• Cable entry points and cover screws,

• Operational reliability of the auxiliary power feed, the lightning protection and the grounds

The flowmeter sensor electrodes must be cleaned when the flowrate information on the transmitter changes when recording the identical flowrate volume.

If the display shows a higher flowrate, the contamination is insulating. If the flowrate displayed is lower, the contamination results in a short-circuit.;

Disconnect the signal cable (if necessary, remove the sealing compound)

Install the new sensor according to the installation instructions

Complete the electrical connection according to the connection diagram

Sign off on the sensor replacement

Loosen screws and pull out transmitter plug-in

Replace transmitter plug-in and retighten screws

Download and upload system data

Sign off on the transmitter replacement