53IIB/54IIB

Users Manual

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.

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Fluke 53IIB, 54IIB specifications Enabling or Disabling Sleep Mode, Setting the Time