23
22
Digital thermo-hygrometer
16. Care and maintenance
• Clean the device with a soft damp cloth. Do not
use solvents or scouring agents.
• Remove the batteries if the device will not be used
for an extended period of time.
• Keep the device in a dry place.
16.1 Battery replacement
• Change the batteries when the battery symbol
appears on the display.
17. Troubleshooting
Problem
Solution
No display
➜
Ensure the batteries'
polarity are correct
➜
Change the batteries
Incorrect indication
➜
Change the batteries
➜
Use the calibration
function
Base station doesn't
➜
Base station is not com-
receive the values
patible (see “transmitter
function" section 13.)
➜
Restart the device and
the base station
(according to the base
station manual)
➜
Manual search for the
transmitter (according
to the base station
manual)
Digital thermo-hygrometer
➜
Choose another place
for the device and/or the
base station
➜
Reduce the distance
between the device and
the base station
➜
Check if there is any
source of interference
18. Calibration function
• The thermo-hygrometer allows the user to calibrate
the display of temperature and humidity measure-
ments with an external, better reference source. The
user can make adjustments to the temperature and
humidity displays within the measuring range.
18.1 Calibration of the humidity display
• Press the
SET
and the
MIN/ MAX/–
button at the
same time for 5 seconds.
• The humidity display flashes.
• Press the
CH/+
or the
MIN/ MAX/–
button to cor-
rect the display of the humidity.
• CALIBRATED appears on the display.
• Press the
SET
button briefly, on the display
appears the normal measurement or press and
hold the
SET
button for 3 seconds to confirm the
set value.
18.2 Calibration of the temperature display
• Press the
SET
and the
CH/+
button at the same
time for 5 seconds.
• The temperature display flashes.
TFA_No. 30.3045_Anleitung 03.08.2017 13:55 Uhr Seite 12
