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f) Relative function
The hand thermometer is equipped with a Relative function. By pressing the Δ Rel-button (17) the hand thermometer
will register the temperature at the pressing of the Δ Rel-button (17). The difference between the temperature read-
ings will be indicated in the LCD display. To deactivate the relative function, press the Δ Rel-button (17) once again.
g) Max/Min function
The hand thermometer is equipped with a Max/Min function. This function records the lowest (Min) and the highest
(Max) temperatures during the measurement. As a result processes can be easily monitored. By pressing the Max/
Min button (5) you will reach the Max/Min function. Through repeated pressing of the Max/Min button (5) you can scroll
though the various temperatures (Min/Max/Current).
When "MAX" (13) is displayed, the highest temperature recorded will be shown, when "MIN" (12) is displayed, the
lowest. When "MAX MIN" blinks simultaneously in the LCD display, the current temperature will be shown – the
maximum and minimum temperature values will however continue to be updated and recorded.
To leave the Min/Max function press and hold the Max/Min button for approximately two seconds.
h) Deactivating the automatic shut off
In order to save the batteries the device is equipped with an automatic power off function (automatic shut off). If the
device is not operated for more than 30 minutes it will automatically shut off. The automatic shut off is activated when
the hand thermometer is switched on. When activated, the automatic shut off is signalled in the LCD display with the
automatic power off symbol "
".
To deactivate this function switch the hand thermometer off. Press and hold the Hold button (6) while switching the
hand thermometer back on. The automatic shut off is now deactivated and the automatic power off symbol "
" will
be extinguished.
i) Calibration
The hand thermometer is calibrated in the factory. For precise measurements the hand thermometer can be set to
the respective temperature sensor. Hold the temperature sensor in a container of icy water (0 °C). Check the hand
thermometer's display after approximately one minute. If it does not read 0 °C it can be correctly set by turning the
offset calibration screw (9). For more precise measurements the hand thermometer can be set with an optional
thermocalibrator.
9. Care and cleaning
• Do not use any aggressive cleaning agents, rubbing alcohol or other chemical solutions as they can cause dam-
age to the housing and malfunctioning.
• Remove batteries from the device when it is not to be used for an extended period.
• Clean the product with a dry, fibre-free cloth.
• Maintenance or repairs must be carried out by qualified personnel.
17
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