Cotech FT0203 User Manual

34
ENGLISH
Troubleshooting guide
Thewireless sensors are
not transmitting any data to
theindoor unit.
Thedisplay shows “--.-”.
• When theindoor unit loses contact with asensor,
either “--.-” or “--” is shown on thedisplay.
• To search for sensors: Press and hold [ CHANNEL/+ ]
for 3 seconds. Press [ CHANNEL/+ ] or [ HISTORY/− ]
and select thesensor that is to be reconnected.
Confirm your selection by pressing [ MODE/SET ].
The
symbol appears while thesearch is taking
place. When thesensor has been found, thesymbol
disappears and thevalue appears on thedisplay.
• Check thedistance between thesensors and
theindoor unit. This distance should normally be
between 1.5m and 30m.
• Try placing thesensors higher up.
• Check that thesensors’ displays are working/LED
indicators are flashing (once every 60seconds).
• Insert new batteries into thesensors. In areas with
acold climate, lithium batteries are recommended.
• Check that thebatteries in theindoor unit are not flat.
Even if theindoor unit is being powered by mains
electricity, flat batteries can also cause problems when
it tries to find thesensors.
• Check that theradio signal is not subject to
interference from nearby metal constructions, etc.
• Move theindoor unit away from other electronic
devices, such as routers, computers and televisions.
Thetemperature sensor
shows daytime values that are
too high.
Check that thethermometer/hygrometer is mounted in
alocation that is shaded from thesun. If possible, mount
thesensor in anorth-facing direction.
Theindoor and outdoor sen-
sors show different values.
Allow thesensors to stabilise for up to 1 hour.
Thetemperature values should be within 1°C (accuracy
±0.5 °C) and thehumidity values should be within 6%
(accuracy ±3%).
Where necessary, adjust thesensors in theindoor unit
(see theCalibration section).
Thecontrast of thedisplay
is poor.
Replace thebatteries in theunit.
Thebackground lighting does
not change colour as expected.
Check thesettings (see theSettings/adjustments section).
If thebackground lighting is to reflect theoutdoor
temperature, ensure that theoutdoor sensor is set to
channel 1.
Thedisplay indicates
precipitation although it is
not raining.
Make sure therain gauge is mounted in astable manner.
If thegauge is not properly fitted (e.g. attached to
anunsteady mast), thesensor can transmit incorrect values.

Cotech FT0203 Specifications

General

Brand	Cotech
Model	FT0203
Category	Weather Station
Language	English