72
Outdoor Tempera-
ture
-30.0°C
+69.9°C
Indoor Temperature
-9.9°C. No alarm will
sound if the minimum
indoor temperature alarm
is set below -9.9ºC.
+59.9°C
Humidity (all)
1% RH
99% RH
Rainfall 24h
0.0 mm
1000 mm.
Rainfall 1h
0.0 mm
1000 mm
Wind
0.0 m/s
50.0 m/s
Hysteresis
To compensate for fluctuation of the measured data, which may cause
the weather alarm to sound constantly if the measured reading is close
to user set level, a hysteresis function has been implemented for each
weather alarm. For example, if the high temperature alarm is set to
+25°C and the current value moves to +25°C, the alarm will be activated
(if it has been enabled). Now when the temperature drops to +24.9°C or
below and thereafter again increases to 25°C, the data will be
blinking, but no alarm will be activated. It has to drop to below +24°C
(with a pre-set hysteresis of 1°C) so that the alarm can be produced
again. Hysteresis values for the various weather data types are given in
the following table:
Weather data
Hysteresis
Temperature
1°C
Humidity
3% RH
Air pressure
1 hPa
Rainfall 24h
5.0mm
Rainfall 1h
0.5mm
Wind
10 km/h
16.
Auto memory for stored values
The base station has a memory back up system, which is used to
memorize user-defined settings for when the batteries are changed or if
a power failure occurs. User defined units are automatically updated
each time these are changed. The base station will memorize the fol-
lowing user defined units:
