Campbell HydroSense II Series, Product Manual

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HS2 and HS2P
22
10. Troubleshooting
Problem Explanation / Recommendation
Display shows “SENSOR
TIMEOUT”
continuously.
This message indicates that the HydroSense II
display has not received a response from the
sensor. Check that the connectors are mated
correctly, the pins are clean, and the connector
has not been damaged. If this problem persists,
please contact Campbell Scientific.
Display shows “NO GPS
LOCK. STORE
ANYWAY?” when
attempting to store data.
This warning indicates that the GPS has not
achieved synchronization with the GPS satellite
network. This may occur because the GPS has
been turned off, does not have a clear view of the
sky or simply has not been turned on long enough
to achieve synchronization. If selecting OK in
response to this query, data will be stored without
positional information and the date and time
information may be inaccurate.
The volumetric water
content is reported as
“---”.
“---” indicates that the water content sensor was
unable to determine the volumetric water content
for these soil conditions. Try taking the
measurement a few more times or try another
location close by. For extreme or special soils,
period can sometimes be used in conjunction
with a soil specific calibration to yield usable
results.
The main screen shows
“GPS off” in the bottom
bar.
This indicates that the GPS is turned off. Please
refer to Appendix A.14 , GPS Settings
(p. A-6)
, to
find the GPS power control.
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
main screen
(p. 15)
gives a warning of the
battery status. When the indicator shows the batteries are near empty ( ),