PRECISION DIGITAL Loop Leader PD6622/4, Instruction Manual

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Loop Leader PD6622/4 Loop-Powered Rate/Totalizer Instruction Manual
36
Enabling the Function Key Hint Feature (
HINT
)
Enabling the function key hint feature will cause a hint message to be displayed when pressing the F1,
F2, or F3 function keys. This text gives a brief description of what the button is programmed to do. Press-
ing that function key a second time will execute that action.
The hint feature does not affect the digital input (
DI
) which is intended for immediate execution.
Changing System Settings (
SYSTEM
)
The System menu contains the following menus: Analog Output Calibration , Restore Factory Defaults ,
Totalizer , Backlight , Information , and Internal Calibration .
Analog Output Calibration (
AOUTCAL
)
To perform the analog output calibration, it is recommended to use a milliamp meter with a resolution of
at least 0.1 µA to measure the output current. The values saved internally during this procedure are used
for scaling the 4-20 mA output in the
Setup menu.
Resetting the Meter to Factory Defaults (
DEFAULT
)
When the parameters have been changed in a way that is dif
ficult to determine what’s happening, it might
be better to start the setup process from the factory defaults. To load factory defaults, enter the
DEFAULT
menu under the
SYSTEM
menu and press enter twice in quick succession. The meter will load the default
settings and restart.
Disabling the Totalizer (
TOTAL
)
The totalizer can be disabled using the TOTAL menu. With the totalizer disabled, the meter will behave as
a PD6602 or PD6604 process meter. Refer to the PD6602/4 instruction manual for instructions about pro-
gramming a PD6602 or PD6604 process meter.
Enabling or Disabling the Backlight (
BACKLITE
)
The backlight may be enabled or disabled using the Backlight menu. The backlight is enabled by default,
but the input must be wired appropriately in order for the backlight to function. See Current Loop (4-20
mA) Connections on page 9. The voltage drop is the same if the backlight is not wired or if it is disabled in
the software.
Viewing System Information (
INFO
)
System information, such as software number, software version, and model number, may be viewed in
the
INFO
menu. Press the Right Arrow button to cycle through all available meter information. Press En-
ter to go back to the previous menu.
SYSTEM
SYSTM
AOUTCAL
SYSTM
DEFAULT
SYSTM
TOTAL
SYSTM
BACKLITE
SYSTM
INFO
SYSTM
ICAL
SYSTEM
SYSTM
AOUTCAL
SYSTM
DEFAULT
LOAD?
DEFAULT
RESET
DFAULT?
Meter Loads
Default Settings
and Restarts