Precision Digital PD650 - Manual (Page 61)

Model PD650 Large Display Process Meter Instruction Manual
61
Display Selection (dSPLAy)
The dSPLAy menu is used to remove menu titles from appearing during the menu
scroll. This feature is useful for eliminating unused menu titles from the menu
scroll; making it impossible to perform certain functions, and making the display
automatically toggle between process/rate and total.
For instance, the user may want to eliminate certain unused menu titles from the
scroll that do not relate to a particular application such as those relating to flow
totalization. The display (dSPLAy) menu could be used to eliminate the reset total
(rset t) and the display total (dsply t), and thus streamline the menu.
A supervisor may want to make it impossible for an operator to perform certain
functions, but still allowing himself to perform them without having to remember
passwords or remove a hard-to-get-at jumper. For instance, a supervisor could
program the meter with the batch presets he wants and disable the SEtPtS menu
(thus making it impossible for a user to change the batch presets) by using the
dSPLAy menu. When the supervisor wants to change the batch presets, he can
reactivate the SEtPtS menu and make his changes. Or a supervisor may want to
make it impossible for an operator to reset the total via the front panel, but still
allow himself to do it easily. This can be accomplished by removing the rSEt t
(reset total) menu title from the menu scroll, thus making it impossible to reset
the total via the front panel and then reactivating it when he wants to reset the
total.
Finally the user may want to make the display automatically toggle between rate
and total. This can be accomplished by setting both display rate (dsply r) and
display total (dsply t) menus to no (n), as described below.
With the lockout jumper in place, the menu titles of display rate, display total,
reset total, display peak, set points, display, and output can still be accessed.
The 4-20 mA output calibration points can be viewed, but cannot be modified.
SetPtS menu title always appears. Ability to
change values may be restricted.
Figure 21. Menu Titles Excluded with Display Menu