Maintenance
7.2 Lamp replacement
CAUTION
The UV lamp generates UV light. Do not look directly at an operating lamp without wearing UV protective eye glasses.
The Lamp compartment is on the left side behind the display and is provided with ventilation on the back side. The tungsten and deuterium (UV) lamp are installed in the lamp compartment. On the back side a fan is installed for cooling of electric components.
The ventilation system operates automatically.
Refer to section 7.2.1 on page 122, section 7.2.2 on page 123 and Figure 8 on page 124 for instructions on replacing the tungsten lamp and deuterium lamp (UV).
7.2.1 Tungsten lamp replacement
1.Switch the instrument off.
2.Unplug the power cord.
DANGER
The instrument must remain switched off until the change of lamp has been completed.
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
4.Place the cover and the attached fan carefully beside the instrument (take special care with the fan cable).
5.Push the spring (Figure 8 on page 124, item 2) up and remove the tungsten lamp (Figure 8, item 1) from the lamp compartment.
6.Unplug plug contact (Figure 8, item 7) from the tungsten lamp.
Important Note: The lamp should only be held by the lamp socket.
Avoid touching the glass.
7.Push plug contact firmly onto the new tungsten lamp.
8.Insert the tungsten lamp into the lamp compartment. Push the spring down.
9.Check that the spring and the lamp socket are positioned correctly.
10.Use a screwdriver to screw the back cover onto the instrument again.
11.Plug in power supply again.
