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Q. Why won’t the logger connect with the computer?
A. The logger may need a new battery or the COM Port
settings may need to be changed through SpecWare
software. You also may have the cable plugged into the
“Ext” (sensor) port instead of the “Com” port.
Q. Why is the A125 or A130 logging invalid or out-of-range
values?
A. The A-Series loggers require special models of the exter-
nal temperature and leaf wetness sensors. If the sensors
designed for other WatchDog models are used, or if the
external sensor is not plugged in, the logger will not read
properly. Also, the Model A130 logger requires
SpecWare 9.02. Using an earlier version will result in in-
valid data.
Q. Can I use the external port of my WatchDog Model A125
or A130 to monitor rainfall or other sensors?
A. No. The external port is only set up to be connected to a
temperature sensor (for the A125) or a leaf wetness sen-
sor (for the A130).
Trouble Shooting
Battery Replacement
Each WatchDog A-Series Data Logger is powered by a 3 volt
Lithium CR2 battery. The battery has a life of over 12 months
continuous use. It is user replaceable and can be purchased
locally, as it is commonly used in photographic equipment.
To replace the battery:
1. Remove the four screws on the back, then the cover.
2. Replace the battery, ensuring it is oriented so that the
+/-
marks on the battery match those on the inside of the bat-
tery location.
3. Replace the cover and the screws.
