MAX
MAX/MIN
MIN
All C40 series thermometers have a MAX/
MIN function. Press "MAX/MIN" for MAX
temperature reading and again for MIN
temperature reading. Press "MAX/MIN"
to resume normal temperature readings.
To clear MAX/MIN, press and hold "MAX/
MIN" until the display returns to normal
measurement.
Countdown Timer
All C40 series thermometers have
a countdown timer. This function is
activated from the Set-Up Menu – see
section below, and can be calibrated
in seconds or minutes. Pressing the
countdown timer button will start this
function. Pressing the button again
during the countdown period will stop the
count. The instrument will beep for 30
seconds at the end of a countdown period
to indicate to the user that it has been
completed.
Auto Switch Off /Power Saving Mode
C40 series thermometers have a
selectable auto-switch off feature. This is
set to 3 minutes from the factory. Auto-
switch off timer starts on the last button
press. Please refer to Set-Up Menu for
instructions on changing this setting.
Set-Up Menu
C40 series thermometers have a hidden
menu structure that is used to set up
a number of parameters within the
instrument.
To enter the set-up menu fi rst ensure the
instrument is off , then press the Count
Down button and keep this held down
while pressing the "ON/OFF" button
to switch the instrument on. After the