ABB Uvisor SF910i User Manual page 122

19 Repair and Replacement
19.2 Fiber Optic Replacement
SF910i complies with the safety rules for installation in explosive atmosphere.
Assembling and disassembling procedures shall be made strictly in accordance
with the SF910i Safety Instruction Manual (EC-DOC-G041MAN033).
The fiber optic assemblys brass plug must be protected against impact, cut, and
abrasion. Failing to do the above will affect the safety behavior in Ex-environment.
1. Remove the SF910i inner assembly by losing the ring nut.
Figure 19.1: FOC Assembly - Losing Ring Nut
2. Pull gently the fiber optic assembly out of the inner guide pipe.
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