Specifications

Alarm setting

Minimum

Maximum

Storm threshold 3 hPa 9 hPa

Air Pressure 920.0 hPa 1080.0 hPa

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 read-

ing is close to user set level, a hysteresis function has been imple-

mented for each weather alarm. For example, if the high tempera-

ture alarm is set to +25°C and the current value mo ves 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 thereafte r again in-

creases to beyond +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 hystere-

sis 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