Xylem DCX-22 SELF CONTAINED WATER LEVEL DATALOGGERS - Manual (Page 5)

KELLER AG für Druckmesstechnik DCX Operating Instructions
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Replacing the battery
Battery: Sonnenschein 3.6V lithium AA type: SL-760 (see accessories)
The DCX should be dried prior to opening to prevent water entering the instrument during open-
ing. The data logger should only be opened or closed in dry ambient air!
DCX-22 AA / VG / SG
The battery is replaced by first removing the knurled nut, followed by the battery sleeve:
DCX-22
The bracket and knurled nut should be unscrewed first in the case of the DCX-22. The battery
sleeve can then be removed:
Note:
It is recommended that the battery be first shorted (for approx. a half a second) prior to insertion.
This is necessary because the voltage is no longer at nominal level after a longer period of stor-
age. The battery is effectively “reactivated” by shorting it.
Please note the correct polarity when inserting the new battery (see symbol on battery bracket).
This opportunity should also be used to check the black O-rings which seal the battery chamber.
The ring seals must be replaced if they show evidence of damage (
∅
17 x 1.5: see accessories). It
is also important to ensure that the O-rings are not damaged when remounting the sleeve.
The battery capacity indicator is automatically set to 99% again each time a battery is replaced
(voltage interruption). This also occurs if the same battery or a discharged battery is inserted. The
battery should for this reason only be replaced when it has been ascertained that it is truly flat.
O-rings
Knurled nut
Battery sleeve
Bracket
! !