Maintenance, 1 batteries, 1 replacing the battery pack – Campbell Scientific HS2 and HS2P (HydroSense II) User Manual
Page 30: Batteries, Replacing the battery pack

HS2 and HS2P
On the display of my
HydroSense II, the
battery icon, the
Bluetooth icon, and the
GPS icon are visible, but
a forth icon appears to be
missing.
The forth icon is the Bluetooth connection icon.
It appears only when the HydroSense II is paired
to a computer and there is an active data
connection between them. This happens when
collecting data or changing configuration
settings. Generally, when using the computer to
collect data from the HydroSense II, focus is on
the computer screen and not the HydroSense II
display, so this icon may not be noticed.
11. Maintenance
11.1 Batteries
The HydroSense II is powered by four AA alkaline batteries. Use a high
quality battery for best operation. Battery brands considered adequate for the
power requirements of the HydroSense II include (inclusively) Energizer
®
,
Duracell
®
, and Panasonic
®
. Under normal use, the life of high quality batteries
should be close to a year. Replace the batteries when the voltage is less than
4 V. The battery indicator icon on the
(p. 14) gives a warning of
the battery status. When the indicator shows the batteries are near empty ( ),
have replacement batteries available. The HydroSense II carry case has a spare
battery pack (holder only – batteries not included).
Configuration settings, stored data, and zones are stored in flash memory such
that they will be preserved during battery replacement.
11.1.1 Replacing the Battery Pack
The process to replace the battery pack is:
1. If using the HS2P, follow the procedure provided in
Section 11.2
Removing Display from HS2P Pole
2. Place the display face down on a clean dry surface.
3. Remove the four (4) Phillips screws on the back of the displays case with
the Phillips screwdriver provided in the carry case.
4. Carefully separate the back cover from the front cover, taking care to keep
the display face down (if the unit is turned face up, the battery holder
inside may fall out and damage the battery wires).
5. Unclip the battery connector from the battery holder.
Although this connector looks similar to the terminals of a 9
V PP3 battery, it is not compatible with the 9 V battery. Do
not connect a 9 Vdc battery to the terminals, because it can
permanently damage the HydroSense II. This damage is
not covered under the warranty.
6. Connect the spare battery holder to the battery connector.
CAUTION
22