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Closing the logger is exactly the reverse of opening it. Remember to keep the O-rings clean and
avoid scratching the O-ring mating surfaces. Carefully inspect the O-rings, as described in
"Inspecting the O-rings" section (p.6), before deploying the logger. Do not use excessive force
when tightening the end sensor end; hand-tight is quite sufficient, as the seal depends upon the O-
rings, not the end cap tightness.
Changing the batteries
RBRsolo/duet data loggers are powered by one (1) AA size 3.6V lithium thionyl chloride
cell.
IMPORTANT NOTE: The logger will not operate with alkaline or zinc-chloride 1.5V AA
batteries, you must use 3.6V lithium thionyl chloride cells. The instrument will also not
operate with rechargeable batteries.
RBR recommends using Tadiran brand batteries only (part# TL-5903 or TL-4903) in your
RBRsolo/duet. Generally, lithium thionyl chloride cells sensitive to orientation, and if the
logger is placed with the positive end facing downward (logger pointing up), it will suffer
from decreased capacity and reduced battery life. Tadiran cells are minimally sensitive to
this orientation effect.
To remove the battery, use either your finger or a blunt tool to push the battery from its
holder using the keyhole opening (Fig. 3) on the back of the carriage.
Fig. 3 Keyhole opening for battery removal
To insert the battery, press the battery into the battery holder, ensuring it is correctly oriented
with the negative terminal placed towards the electronics (Fig. 4 and 5). The label in the
logger indicates proper battery placement.
Fig. 4 RBRsolo/duet battery holder with battery
RBR Ltd., 5-95 Hines Road, Ottawa, Ontario, Canada K2K 2M5
Tel: +1 613 599 8900 Fax: +1 613 599 8929 info@rbr-global.com
Page 2 of 7
RBR#0001896 Rev A 10/2014
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