E119-P
Page 42 FW_E119-P_M_v0301-02_EN
6.2.3 OPENING, ASSEMBLING AND CLOSING THE UNIT
Explosion risk: never open the housing when explosive atmosphere is present.
Safety risk: do not open an installed enclosure when circuits are alive.
Opening the cover
1. Loosen the fixing screw.
2. By hand (or gently with a wrench if tight), turn
the cover counter-clockwise until it is free of
the housing. Make sure the MEM inside
doesn’t fall out or gets damaged. Remove the
cover carefully.
3. Store the cover in a safe location. Make sure
the mounting thread and glass screen are
protected and the fixing screw is not lost.
Removing the MEM
1. Mind the wiring! Carefully lift out the MEM to
remove it from the housing.
2. Unlock and carefully disconnect the flat cable
connector.
3. Disconnect all other cable connectors from the
MEM.
4. Store the MEM in a clean, safe location
ensuring that the LCD and keyboard is
protected.
5. If applicable: protect the housing and
connectors against ingress of contamination.
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