Precision Digital PD650 - Manual (Page 60)

Model PD650 Large Display Process Meter Instruction Manual
60
Lockout and Display Selection Programming
Overview
The meter provides the user with the ability to restrict modification of
programming values and to exclude menu titles from appearing during the menu
scroll. Restricting modification of the programming values is accomplished by
installing the lockout jumper (JP1). Excluding menu titles from the menu scroll is
performed with the display (dsplay) menu.
Lockout
The Lockout jumper is used to restrict modification of calibration and
programming values. It is labeled JP1 “LOCK”, and it is located at the top middle
of the Main Board. JP1 may be accessed through a cutout on the Display Board.
When ENTER is pressed with the lockout jumper in place, SCale, CalIb,
Cutoff, Tbase, Tot Cf, and Tot dP do not appear during the menu scroll, and
thus cannot be modified.
SetPtS menu title always
appears. Ability to change
values may be restricted. outPut menu title appears
only if 4-20 mA output
option is installed.
Figure 20. Functions Locked Out with the Lockout Jumper
Notes:
1. The other function the lockout jumper performs is activating selections made
through the display (dsplay) menu. That is, selections made through the
display menu only become active when the lockout jumper is installed.
2. With the lockout jumper in place, the set points (setpts) menu still appears.
To program the meter so the set, reset, or preset points can only be viewed
and not changed, it is necessary to set the setpts menu to no (n) in the
display (dsplay) menu. To be able to change these values, set the setpts
menu to yes (y).