LENS REPLACEMENT
To replace the lens, proceed as follows:
1. Remove the front panel from the device.
2. Remove the transparent lens-holder inside
the front panel.
3. Remove the existing lens and mount the
new one. Make sure to position the knur-
led portion towards the inside and to
move upwards the portion with the indica-
tion of the lens identification data.
4. Fasten again the lens-holder.
5. Reinstall the front panel.
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