11.4. Frost warning
This function warns, if the temperature of the sensor, which is displayed in the
particular display panel, is below 39.2˚F/+4˚C (see more in chapter 9.5). In the
particular display panel the frost warning symbol (see above) appears.
12. Changing battery
Depending on which batteries or rechargeable batteries you
use, the replacement interval can be very different. High-quality
alkaline batteries keep the longest, rechargeable batteries or
cheap zinc-carbon batteries require more frequent changing.
12.1. Base station
If the battery flat symbol appears in the display (
), the batteries have
to be replaced with new ones.
• Always replace the whole set of batteries.
• Do not mix full with “half-full” batteries.
• Always use four batteries of the same type and manufacturer.
• Do not mix batteries with rechargeable batteries.
• As already mentioned, rechargeable batteries operation is pos-
sible, the durability is, however, appreciably lower than with
batteries.
• For changing the batteries, proceed as described in chapter 7. 1.
Please observe the following:
After replacing the batteries, all data, values stored in the base
station (e.g. settings, MIN-/Max data etc.) are deleted and have
to be entered again.
12.2. Combination sensor, outdoor sensors, pool sensor
When the display of the sensor concerned fails for more than 24 hours,
the batteries are to be replaced with new ones as described in the par-
ticular manual.
Check as whether there is possibly some disturbance in the
radio transmission which is the cause for the failure of the data
transmission. In this case also, there will be no indication in
the display of the base station.
The cause could be, for example, a metal object in the radio
path (e.g., a parked vehicle).
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