Operation Manual

2120
TWIN PLUS – Wireless Thermo-Hygrometer

Avoid the vicinity of any interfering field like computer mon-
itors or TV sets and solid metal objects.
• With the foldable leg at the back of the transmitter it can be
placed onto any flat surface or wall mounted at the respec-
tive location by the hanging hole at the back of the unit.
Choose a shady and dry position for the transmitter. (Direct
sunshine falsifies the measurement and continuous humidity
strains the electronic components needlessly).
• Check the transmission of 433 MHz signal from the transmit-
ter to the basic unit (transmission range 30 m free field).
Within ferro-concrete rooms (basements, superstructures),
the received signal is naturally weakened.
• If necessary choose another position for transmitter and/or
basic unit.
8. Care and maintenance
•
Clean the instrument with a soft damp cloth. Do not use sol-
vents or scouring agents.
• Remove the batteries if you do not use the product for a
lengthy period.
• Keep the instrument in a dry place.
8.1 Battery replacement
•
When the battery symbol appears, replace the batteries in
the transmitter.
• Please note:
When the batteries are changed, the contact between trans-
mitter and receiver must be restored – so always insert new
batteries into both units or start a manual transmitter search.
9. Troubleshooting
Problems Solution
No indication ➜ Ensure batteries polarities
at the basic unit are correct
➜ Change batteries
TWIN PLUS – Wireless Thermo-Hygrometer

No transmitter reception ➜ Check batteries of external trans-
Display “---“ mitter (do not use rechargeable
batteries!)
➜ Restart the transmitter and the
basic
unit as per the manual
➜ Start manual search for the trans-
mitter: Press RESET button in the
battery compartment of the
transmitter by using a pointed
object and press and hold the
SEARCH/IN/OUT button on the basic
unit
➜ Choose another place for the
transmitter and/or the basic unit
➜ Reduce the distance between the
transmitter and the basic unit
➜ Check if there is any source of
interference.
Incorrect display ➜ Change batteries
➜ Press the RESET button by using a
pointed object on the basic unit
10. Waste disposal
This product has been manufactured using high-grade materi-
als and components which can be recycled and reused.
Never dispose empty batteries and rechargeable
batteries in household waste. As a consumer, you
are legally required to take them to your retail
store or to appropriate collection sites depending
to national or local regulations in order to protect
the environment.
The symbols for the heavy metals contained are:
Cd=cadmium, Hg=mercury, Pb=lead
This instrument is labelled in accordance with the
EU Waste Electrical and Electronic Equipment Direc-
tive (WEEE).
TFA_No_30.3049_Anleitung 13.07.2012 9:47 Uhr Seite 11