Duronic IRT3W Manual De Instrucciones página 20

No memory data / Clear memory data
Screen Display
Switching between Mute and Un-Mute
Screen Display
Operating Instructions
Displayed State
When there is no memory
data, this display is shown.
To clear any saved data,
simply remove the batteries
and then put them back in
again. This will clear all the
memory data.
Operating Instructions
Displayed State
1. Press and release the
power/measure button
for 1 second to turn on the
thermometer
2. Press and hold the
memory/mute button for
about 2 seconds to switch the
sound on or off.
3. When the sound is turned
on, it will beep once.
4. When the sound is turned
off, the mute symbol will be
displayed.
20
Sound and
Backlight Colour
When the power is
turned back on, there
will be a long beep
and the backlight
turns from orange to
red.
Sound and
Backlight Colour
When the sound
is turned on, there
will be a long beep
and the backlight is
orange.