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53IIB/54IIB
Users Manual
12
Enabling or Disabling Sleep Mode
The thermometer enters sleep mode if no button press
occurs for 20 minutes.
Pressing any button wakes the thermometer and returns it
to its previous state.
1. Press or until the display shows .
2. Press to indicate that you want to change the
sleep setting.
The display shows if sleep mode is on and if
sleep mode is off.
3. Press or as needed until the display shows
or .
4. Press to store the sleep setting in memory.
Sleep mode is enabled each time you turn on the
thermometer and is automatically disabled in MIN MAX
and logging modes.
Setting the Time
1. Press or until the display shows the time if it
is set or shows "- - : - -."
2. Press to indicate you want to set the time.
The left two digits blink.
3. Press or until the display shows the correct
hour (24-hour format), and then press to select.
The right two digits blink.
4. Press or until the display shows the correct
minutes, and then press to store the time in
memory.
Note
Holding down or causes the number to
change more quickly.