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Hach Lange DR 3900 - Page 129

Hach Lange DR 3900
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129
Maintenance
7. Lift out the lamp holder upwards.
8. Turn the lamp holder so that the connector with the cable
guide points forwards.
9. Push the clamp slide as far as possible to the right (Step 1).
10. Grasp the connector along with the lamp, pulling it out of the
lamp holder (Step 2).
11. Release the connector from the lamp (Step 3).
Figure 8 Lamp replacement
To fit a new lamp carry out the procedure in reverse.
1. Connect a new lamp to the connector.
2. Install the lamp with the connector in the lamp holder.
3. Secure the lamp with the clamp slide. To do this, push the
connector downwards and push the clamp slide as far as
possible to the left.
1 Lamp holder 3 Lamp
2 Clamp slide 4 Connector
NOTICE
Only hold lamp at lamp holder. Avoid touching the glass, as
substances on the skin can bake onto the lamp bulb and thus
accelerate the ageing process of the lamp.

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