Home Menu Functionality; Backlight Use; Zero Function; External Sensor (Absolute) - Fluke 721 User Manual

721
Users Manual

Home Menu Functionality

There are three options for the Home Menu:
P1/P2
mA/V/RTD
MENU
These options are shown across the bottom of the
display.
From anywhere within the menu structure, push  to get
back to the Home Menu.

Backlight Use

Push  to toggle on and off the backlight. This function
cannot be controlled by the serial interface.

Zero Function

In pressure mode and when the pressure is within the
zero limit, The Product zeros pressure on any port that is
currently shown on the display. The zero limits are within
10 % of the full-scale range of the selected sensor. If the
display shows "OL," the zero function will not operate.
10

External Sensor (Absolute)

If the active display shows a selected absolute module,
and Z is pushed, push  (SET) and you are prompted
to set or default the pressure reference. This is done with
 and  (the up and down arrows). The sensor port
must be open (vented) to atmosphere while this
procedure is done. Push  (SET REF DONE) when
zero adjust is complete.