Fluid Components International RF83 Maintenance

CHAPTER 4 - MAINTENANCE FLUID COMPONENTS INTL

4. Maintenance

The instrument requires very little maintenance. There are no moving parts or mechanical parts subject to wear.

Maintenance

Without detailed knowledge of the environmental parameters of the application, surroundings, and process media,
FCI cannot make specific recommendations for periodic inspection, cleaning, or testing procedures. However, some
suggested general guidelines for maintenance steps are offered below. Use operating experience to establish the
frequency of each type of maintenance.

Alarm Set Point Verification

Periodically verify the alarm set point(s).

Enclosures

Periodically verify that the moisture barriers and seals of the local and/or remote enclosures are adequate and that no
moisture is entering the enclosure(s).

Warning:

Caution:

To avoid hazards to personnel, ensure that all environmental isolation seals are properly
maintained.

The control circuit contains electrostatic discharge (ESD) sensitive devices. Use standard ESD
precautions when handling the control circuit. See Chapter 2, Installation for ESD details.

Electrical Wiring

Periodically inspect the power, flow element, and output wiring for signs of corrosion or deterioration.

Electrical Connections

Periodically inspect wire connections on the socket and terminal block (if present). Verify that terminal connections
are tight and physically sound with no sign of corrosion.

Process Connection

Periodically 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

Periodically remove the flow element for inspection based on historical evidence of debris, foreign matter, or scale
buildup and appropriate plant shutdown schedules and procedures. Check for corrosion, stress cracking, and/or
buildup of oxides, salts, or foreign substances. The heater and RTD thermowells must be free of excessive
contaminants and be physically intact. Any debris or residue buildup could cause inaccurate switching. Clean the
flow element, as necessary, with a soft brush and available solvents (compatible with stainless steel).

Doc. No. 003147 Rev. B 4 - 1 Model RF83 Flow Switch

FLUID COMPONENTS INTL CHAPTER 4 - MAINTENANCE

Model RF83 Flow Switch 4 - 2 Doc. No. 003147 Rev. B