Standalone Power Supply Unit 120 V dc to -24 V dc
15
7885-2 & 7885-3
4.3
Battery Replacement Procedure
Replacement of the battery will be necessary after its rated service life has
expired. Its rated service life is at least five years. It is to be replaced with a GS
battery 12V, 5.7 A-h. P/N PE12V7F1 unit or equivalent. For a view of the Power
Supply Unit’s component layout, refer to Figure 4.
To replace the battery for models 7885-2 and 7885-3
1.
Disconnect the power supply from the shelf.
2.
Remove the metal enclosure by loosening the two faceplate screws and
sliding the chassis out.
3.
Remove the metal plate holding the batteries to the chassis.
4.
Disconnect the batteries and dispose of them in a government approved
waste site.
Caution
The batteries contain toxic lead and corrosive acid, and as they are
user-replaceable, should only be disposed of in government approved waste
sites.
5.
Position the new batteries and reconnect the leads (red to “+” of the battery
on right side, black to “-” of the battery on left side).
6.
Reconnect the batteries to each other using the lead (“+” for battery on left
side, “-” for battery on right side).
7.
Refasten the metal plate.
8.
Close and secure the cover.
Note
Blown fuses and dead batteries are the only components intended for
replacement by customer maintenance personnel. Contact Positron should
any other servicing be required.
