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Operating the thermometer
8.7
Displaying temperature differences
This function subtracts the T2 temperature sensor reading from the T1 temperature sen-
sor reading and shows the difference in the main display. In the sub-display the current
reading is still shown from the temperature sensor which was set there.
➤ Press the
button to activate the function.
T1-T2
T1
T2
I
NOTE
If you want to see the current reading from the other temperature sensor in the
sub-display, press and hold down the
➤ Press the
button again to deactivate the function.
T1-T2
T1
T2
8.8
Setting zero point
I
NOTE
If the thermometer does not switch off, check that the battery is inserted
properly and is not running low.
In the setup mode, the thermometer cannot be switched off. Exit the setup
mode before you switch off the thermometer.
You can reset the device to compensate for any temperature sensor errors.
➤ Press and hold down the
➤ Press the
and
TYPE
You can offset by up to 5 °C, 5 K, or 9 °F.
➤ Press the
button to save the value.
MAX
MIN
➤ Reset the value to 0 if you want to use another temperature sensor at this entrance or
deactivate the function.
8.9
Replacing the batteries
➤ Slide the battery lid of the thermometer down in the direction of the arrow (fig. 4 1,
page 5).
➤ Replace the 9 V battery (fig. 4 2, page 5). Make sure the polarity is correct.
➤ Slide the battery lid back onto the thermometer against the direction of the arrow until
it clicks.
26
All manuals and user guides at all-guides.com
button.
REL
buttons to increase or decrease the offset by 0.1 °C, K, or °F.
TM-84N AirConService
button.
T1-T2
T1
T2
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