Maintenance; Introduction; General Maintenance - FCI MT100 Installation, Operation And Maintenance Manual

MT100 Multipoint Flow Meter
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MAINTENANCE

Warning:
Warning:
Caution:

Introduction

The flow meter needs very little maintenance. There are no moving parts or mechanical parts subject to wear in the flow meter. The flow
element that is exposed to the process media is all welded stainless steel construction. The flow element is only subject to chemical attack
based on the corrosion relationship between the RTD thermowell material and process media.

General Maintenance

General maintenance procedures are summarized below.
Calibration
Every 18 months as a minimum, verify the calibration of the flow meter and re-calibrate if necessary (contact the factory).
Electrical Connections
Periodically inspect the cable connections, the terminal strips and the terminal blocks for good connections. Verify that terminal
connections are tight and physically sound with no sign of corrosion.
Enclosures
Verify that the moisture barriers and seals that protect the local and remote enclosures are intact.
Electrical Cables
Periodically inspect the power cable, flow element cable(s) and output cable. Check for deterioration of the cable's insulation.
Flow Element Mounting Connections
Verify that all seals are performing properly and that there is no leakage of the process media. Check for deterioration of the gaskets and
environmental seals used.
Flow Element Assembly
Periodically remove the flow element for inspection based on historical evidence of debris, foreign matter, or scale build-up. Also the flow
element can be removed at appropriate plant shutdown schedules. Check for corrosion, stress cracking, and/or build-up of oxides, salts, or
foreign substances. The thermowells must be free of excessive contaminants and be physically intact. Any build-up could cause faulty
readings. Clean the flow element as needed with a soft brush and available solvents (compatible with stainless steel).
Fluid Components International LLC
To avoid hazards to personnel, ensure that all environmental isolation seals are properly maintained.
AC mains wiring is exposed when remote electronics enclosure is opened. Exercise caution when calibrating the
instrument or opening the enclosure door.
The flow transmitter contains electrostatic discharge (ESD) sensitive devices. Use standard ESD precautions when
handling the flow transmitter. See Use Standard ESD Precautions, page
MAINTENANCE
5 for details.
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