User Guide

3 Key for optics 4 Holder ring
Removing the protective glass Fig. 5-8
2. Screw the retaining ring (4) with the key for optics (3) out of
the lens protection receptacle.
Note
When replacing the protective glass, make sure that no dirt
particles fall onto the focusing lens.
3. Cover the opening of the focusing optics in loaded environ-
ments (e.g. in case of oil mist or intense dust), until you reat-
tach the lens protection.
4. Remove the O-ring and protective glass from the retaining
ring.
5. When the O-ring is damaged, replace it.
6. Soak lens cleaning paper or swab with methyl alcohol and
clean the protective glass holder and the O-ring.
7. Insert O-rings in the protective glass holder. Make sure that
the O-rings fit in the groove correctly.
8. Place a new protective glass and O-ring on the retaining
ring.
9. Insert the retaining ring with protective glass and O-ring and
screw firmly with the key for optics.
10. Screw the lens protection clockwise on the lens.
22-50-17-CRen
2020-01
Welding optics
5‐17
Inserting a new protective
glass