MT86/MT86HT Flow Meter
MAINTENANCE
Fluid Components International LLC
17
4
MAINTENANCE
Warning:
To avoid hazards to personnel, ensure that all environmental isolation seals are properly
maintained.
Caution:
The flow transmitter contains electrostatic discharge (ESD) sensitive devices. Use standard ESD
precautions when handling the flow transmitter. See
, page 3, for ESD details.
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 stainless steel construction with nickel braze. The flow element is only subject to
chemical attack based on the corrosion relationship between the RTD thermowell material and process media.
Maintenance
No specific maintenance steps are made for inspecting, cleaning, or testing procedures without detailed knowledge of the process media
components. However, shown below are some general guidelines for maintenance. Use operating experience to set the frequency for
each type of maintenance.
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. Faulty readings can be caused by
build-up. Clean the flow element as needed with a soft brush and available solvents (compatible with stainless steel).
Summary of Contents for MT86
Page 1: ...Doc No 003162 Rev G...
Page 19: ...MT86 MT86HT Flow Meter OPERATION Fluid Components International LLC 15 Figure 9 A D Data Sheet...
Page 40: ...APPENDIX A DRAWINGS MT86 MT86HT Flow Meter 36 Fluid Components International LLC C01156 1 1...
Page 47: ...MT86 MT86HT Flow Meter APPENDIX C CUSTOMER SERVICE Fluid Components International LLC 43...
Page 48: ...APPENDIX C CUSTOMER SERVICE MT86 MT86HT Flow Meter 44 Fluid Components International LLC...
Page 54: ...MT86 MT86HT Flow Meter Fluid Components International LLC 003162 Rev G...
