Laurel Electronics LAUREATE SERIES 2 DIGITAL PANEL METER - Manual (Page 12)

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9. ENABLING & LOCKING OUT MENU ITEMS
For security reasons and ease of meter operation, any and all
menu items may be disabled or "locked out" so that they are no
longer directly accessible from the front panel. Each function to
be disabled is set to "1" in menu items Loc 1, Loc 2 or Loc 3, and
each function to be enabled is set to "0." The top menu items
Loc 1, Loc 2 and Loc 3 can in turn be locked out by installing an
internal hardware jumper. With the jumper installed, the operator
only has access only to enabled menu items. With the jumper
removed, the operator also has access to menu items Loc 1, Loc
2 and Loc 3.
SETTING HARDWARE LOCKOUT JUMPER
To access the lockout jumper, remove the rear panel per Section
9 and locate jumper “a” in the lower portion of the power supply
board next to the input connectors (see figure at right).
SETTING SOFTWARE LOCKOUTS
When setting up the meter, it may be necessary to
enable specific menu items by setting the corres-
ponding lockout digit to 0. Be sure to reset the lockout
digit to "1" if you do not want the menu item to be
changed by an operator.
Loc 1 Loc 2 Loc 3
Press the MENU key until Loc 1, Loc 2 or Loc 3
is displayed, as desired. Note: the hardware lockout
jumper must be removed (see above).
11111
Press to display the lockout status, consisting of
1’s and 0’s. The left digit will flash. Press again to
step to the next digit, which will flash.
00000
12345
Press to set the flashing digit to "0" to enable the
menu item or to "1" to disable. Press MENU to enter.
See the table to the right for list of menu items that
can be enabled or disabled.
Enabled or Disabled
Menu Items
Loc 1
1 - Input type selection.
2 - Meter setup, configuration
& decimal pt.
3 - Filter selection.
4 - Scale or Lo, Hi input.
5 - Offset or Lo, Hi reading
Loc 2
2 - Alarm setup.
3 - Alarm setpoint value
programming.
4 - Analog output scaling.
5 - Serial interface setup.
Loc 3
2 - View peak value
3 - View alarm setpoints
4 - Reset (peak & latched alarms)
5 - Reset (meter reset)