<3. Maintenance>
12
IM 01F07A01-02EN
3.3 RemovingtheAmplierUnit
IMPORTANT
Do not twist the amplier unit when removing or installing it. Doing so may damage the connector
pins.
WARNING
• In the case of an explosion protected type instrument, make sure that no explosive
atmosphere conditions are present.
• When opening and closing the cover, pay careful attention to the handling of screws and
O-rings to prevent damage and adhesion of foreign matter.
• Replace O-rings if they are damaged or deformed.
• If there is no lubricant on the O-rings, apply silicone-based grease.
Follow the procedure below to remove the amplier unit.
(1) Turn the power OFF.
(2) Remove the cover. When opening the cover of a ameproof type instrument, turn the
locking screws to the right to unlock the cover.
(3) Loosen the two amplier unit mounting screws with a 5.5 mm socket nut driver, and pull the
amplier unit out straight.
If the instrument is equipped with an indicator, remove the indicator before removing the
amplier unit. Follow the procedure described in Section 3.2 to remove the indicator.
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