<8. Maintenance>
8-1
IM 01C25W05-01EN
8. Maintenance
8.1 Overview
WARNING
• Since the accumulated process fluid
may be toxic or otherwise harmful, take
appropriate care to avoid contact with the
body or inhalation of vapors when draining
condensate or venting gas from the
transmitter process-detector section.
• If the process fluid is harmful to the human
body, take appropriate precautions to
prevent contact of toxic process fluids and
inhalation of harmful vapors even after the
transmitter is removed from the line, such as
for maintenance purposes.
Maintenance of the transmitter is easy due to its
modular construction. This chapter describes
the procedures for calibration, adjustment, and
the disassembly and reassembly procedures
required for component replacement. Transmitters
are precision instruments. Please carefully
and thoroughly read the following sections for
information on how to properly handle them while
performing maintenance.
IMPORTANT
• As a rule, maintenance of this transmitter
should be done in a shop that has all the
necessary tools.
• CPU assembly handling
The CPU assembly contains sensitive parts
that can be damaged by static electricity.
Take precautions such as using a grounded
wrist strap when handling electronic parts or
touching the board circuit patterns. Also be
sure to place the removed CPU assembly
into a bag with an antistatic coating.
8.2 Calibration Instrument
Selection
Table 8.1 lists the instruments that can be used
to calibrate a transmitter. When selecting an
instrument, consider the required accuracy
level. Exercise care when handling these
instruments to ensure they maintain the
specified accuracy.
