The range of the Thermo-Hygro transmitter may be affected by the temperature.
At cold temperatures
the transmitting distance may be decreased
. Please bear this in mind when placing the transmitter.
Checking for 433 MHz reception:
The same as the DCF-77 signal, the Weather Station will automatically start scanning for the 433
MHz signal after the batteries are inserted. If the outdoor temperature is not displayed
after about 30
seconds
, then check the following list before resetting the units (see Resetting below):
1.
The distance of the Weather Station should be at least 1.5 - 2.0 meters away from interfering
sources such as computer monitors or TV sets.
2.
Avoid placing the units onto or in the immediate proximity of metal window frames.
3.
Using other electrical products such as headphones and speakers that operate on the same
frequency signal (433 MHz) may prevent the transmission pick up.
4.
Neighbours using electrical items operating on the 433 MHz signal can also cause interference.
Note:
When the 433 MHz signal for the outdoor temperature has been received, do not re-open the battery
cover to either the Weather Station or transmitter as the batteries may accidentally spring free from
the contacts and force a false reset. Should this happen then reset both units (see Resetting below)
otherwise transmission problems may occur.
The transmission range from the temperature transmitter to the Weather Station (433 MHz) is up to
25 meters in open space, but again this depends on the surrounding environment and interference
levels. If reception is still not possible, then reset both units (see Resetting below).
The transmitter's transmitting range may be affected by exposure to extreme cold conditions ( -25ºC)
for long periods of time. Should this happen, the 433 MHz signal may be weakened and therefore
result in shorter transmitting distances. The contrast of the LCD may reduce due to the power
reduction of the batteries caused by such sub-zero temperature levels.
Resetting:
1.
Remove batteries from both the Weather Station and the transmitter
2.
Wait at least 30 seconds and then repeat the procedures specified in
Setting up
(above).
Note:
Always wait at least 30 seconds after removing the batteries before reinserting, otherwise start up
and transmission problems may occur.
Positioning the Weather Station:
Before wall mounting, please check that the outdoor temperature can be received
from the desired locations. To wall mount:
1.
Fix a screw (not supplied) into the desired wall, leaving the head
extended out the by about 5mm.
2.
Hang the station onto the screw. Remember to ensure that it
locks into place before releasing.
Positioning the Thermo-Hygro transmitter
The Thermo-Hygro transmitter is supplied with two screws for wall mounting. Before securing the
transmitter, ensure that the 433MHz signal (outdoor temperature and relative humidity readings) is
properly received.
The mounting surface can affect the transmission
range. If e.g. the unit is attached to a piece of metal, it
may then either reduce or increase the transmitting
range. For this reason, we recommend not placing
the unit on any metal surfaces or in any position
where a large metal or highly polished surface is in
the immediate proximity (garage doors, double
glazing etc.). Before securing in place, please ensure
that the Weather station can receive the signal from
the Thermo-Hygro transmitter at the positions that
you wish to situate them.
Care and Maintenance:
•
Extreme temperatures, vibration and shock should be avoided as these may cause damage to
the units and give inaccurate forecasts and readings.
•
When cleaning the display and casings, use a soft damp cloth only. Do not use solvents or
scouring agents as they may mark the LCD and casings.
•
Do not submerge the units in water.
•
Immediately remove all low powered batteries to avoid leakage and damage. Replace only with
new batteries of the recommended type.
•
Do make any repair attempts to the units. Return them to their original point of purchase for
repair by a qualified engineer. Opening and tampering with the units may invalidate their
guarantee.
•
Do not expose the units to extreme and sudden temperature changes, this may lead to rapid
changes in forecasts and readings and thereby reduce their accuracy.
Specifications:
Recommended operating temperatures:
Weather Station
:
0ºC to +50ºC
Transmitter
:
-29.9ºC to +59.9ºC
Temperature measuring range
Indoor
:
0ºC to +60ºC with 0.1ºC resolution
+32ºF to +140ºF with 0.2ºF resolution
("OFL" displayed if outside this range)
Outdoor
:
-29.9ºC
to +59.9ºC with 0.1ºC resolution
-21.8ºF
to +139.8ºF with 0.2ºF resolution
("OFL" displayed if outside this range)
Relative indoor humidity range
:
20
% to
95
% with 1% resolution
•
if the indoor temperature is
outside the range “OFL”
:
Indoor relative humidity will display “- -“
•
if the indoor relative humidity is
less than
20
% or greater than
95
%
:
Indoor relative humidity will display
19% or 96%
Relative outdoor humidity range
:
20
% or
95
%
("- -" displayed if outside this range)
Temperature checking intervals
Indoor
:
20 seconds
Outdoor
:
5 minutes
Humidity checking interval
Indoor
:
1 minute
Outdoor
:
5 minutes
Transmitter temperature reading update
:
1 minute
