6
display. The device switched off after the time has elapsed. A short press
of the power key restarts the counter. This turn-off timer can be
deactivated: while switching the device on, press and hold the power
button for 4 seconds until the beep. The device now shows
∞
indicating
continuous operation mode. To deactivate this function, repeat the
process.
3.7 Pressing and holding the mode button takes you to a submenu. The
device remains in the submenu until the mode button is released. It flicks
through menu items every second. To deactivate this function, repeat
process.
3.8 Trend display, measured temperature value is shown in connection with
a trend display
3.9 The permitted device temperature is 32
°F
– 122°F.
A separate sensor
measures the device temperature directly behind the display. If the
device temperature exceeds the allowed range, a warning flashes on the
display. Return to regular temperature immediately to avoid damage.
4.0 BATTERIES
4.1
For a long battery life, it is recommended to press the “ON/OFF” button
to switch the instrument off when not in use.
4.2 When the battery is used up, the low battery icon appears.
4.3 Open the battery cover on the rear of the instrument, insert a new
battery and tighten the cover again.
4.4 Replace batteries when the low battery indicator in the right corner of
the display appears. Open battery compartment screw, replace with two
batteries AA 1,5 Volt (LR6). Close batter compartment.
4.5 Battery life approx. 500 hours