<3. Maintenance>
13
IM 01F07A01-02EN
3.4
Installing the Amplifier Unit
IMPORTANT
Make sure to follow the procedure below when installing the amplifier unit.
The amplifier unit may not function properly if it is installed without following the procedure exactly
as described.
Follow the procedure below to install the amplifier unit.
(1) Place the amplifier unit in the transmitter case so that the flat side at the top of the amplifier
unit fits against the flat surface inside the transmitter case.
(2) Insert the ends of the two amplifier unit mounting guide pins into the mounting holes.
(3) Lightly press the upper and lower parts of the amplifier unit simultaneously to insert the
amplifier unit into the transmitter case. Take care not to touch the electronic components of
the amplifier unit when pressing it in.
(4) Tighten the amplifier unit mounting screws to secure the amplifier unit. If the instrument
is equipped with an indicator, follow the procedure described in Section 3.2 to install the
indicator.
(5) Install the cover. When installing the cover on a flameproof type instrument, make sure to
turn the locking screws to the left to lock the cover.
F0303.ai
Amplifier unit mounting guide pin
Figure 3.4
Removing and Installing the Amplifier Unit
