Hach DR 2800, Руководство пользователя, Страница: 74 / 96

74
Maintenance
7.2 Battery Replacement
CAUTION
Pay special attention to the following information for the
Lithium battery pack:
• Do not short-circuit the contacts.
• Keep the battery away from fire.
• Do not expose the battery to temperatures above 60°C
(such temperatures may occur, for example, in a car left in
the sun, or in direct sunlight). The performance of the
battery decreases with the temperature.
• Ensure that the battery does not become wet.
• Take care that the battery is not exposed to impacts,
blows, etc.
• Do not take the battery apart or modify it in any way.
CAUTION
For quality and safety reasons, only the manufacturer’s lithium
batteries (Cat. No. LZV551) should be used for this instrument.
Use of non-instrument specific battery types may impair the
functioning of and/or damage the instrument electronics by
overloading them, or depending on battery types can result in
fire or explosion.
1. Remove the sample cell from the cell compartment.
2. Switch the instrument off.
3. Unplug the power cord.
4. Turn the instrument over carefully and place it on a soft surface.
5. Use a screwdriver to remove the screw from the cover.
6. Remove the cover.
7. Remove the old battery by lifting the end over the cover screw
insert and pulling to remove (
Figure 11 ).
8. Carefully place the new battery into the compartment, with the
label facing up.
9. Push in the battery so that the instrument contacts plug into the
battery socket.
Important Note: Make sure that the battery contacts are always
clean. Soiled contacts can result in contact heating and voltage
drop, interfering with the proper operation of the
spectrophotometer.
10. Use a screwdriver to replace the screw securing the cover.
11. Carefully stand the instrument upright.
12. Plug in the power supply. The Instrument is now ready for use.
The instrument can be operated using line power while the
battery charges.