Backlight; Power-Up Options - Fluke 233 User Manual

Backlight

Push to toggle the backlight on and off. The backlight

automatically extinguishes after 40 seconds. To disable
backlight auto-off, hold down  while turning the Meter
on.

Power-Up Options

Hold a button down while the function switch is moved
from the OFF position to set a power-up option. The
power-up options cancel when the function switch is
moved to OFF or the Meter goes into Sleep mode. See
Table 6 for all power-up options.
Table 6. Power-Up Options
Button Power-Up Options
Illuminates all display segments.

Disables the beeper.  is shown when

on.
Disables automatic power-down ("Sleep

mode").  is shown when on.
Disables backlight auto-off.  is shown

when on.
True-rms Remote Display Digital Multimeter
Backlight
15