Fluke 27-II - Page 24

27 II/28 II
Users Manual
14
Table 6. Power-Up Options
Button Power-Up Option

(Yellow)
Disables automatic power-off feature (Meter normally powers off in 30 minutes).
The Meter reads “PoFF” until  is released.

Enables the Meter’s calibration mode and prompts for a password.
The Meter reads “CAL” and enters calibration mode. See 27 II/28 II Calibration Information.
 Enables the Meter’s smoothing feature. The Meter reads “'---” until  is released.
 Turns on all LCD segments.
 Disables the beeper for all functions. The Meter reads “bEEP” until  is released.

Disables auto backlight off (backlight normally disables after 2 minutes). The Meter reads “LoFF” until  is
released.

(Relative mode)
Enables zoom mode for the bargraph. The Meter reads “2rEL” until  is released.

Enables the Meter’s high impedance mode when the mV dc function is used.
The Meter reads “Hi2” until  is released. (28 II only)