Hach-Lange DR 3800 User Manual - Manual (Page 124)

124
Maintenance
7.2 Lamp replacement
CAUTION
To avoid a possible electric shock, disconnect the instrument
from the power source before servicing the lamp.
1. Switch the instrument off.
2. Unplug the power cord.
WARNING
Burn Hazard. Wait until the lamp cools down. Contact with the
hot lamp can cause burns.
3. Use a screwdriver to remove the cover from the back of the
instrument (the screws may be slotted or cross-head).
4. Remove the cover.
5. Carefully fold the fan forward (see instrument label 1).