Precision Digital Corporation Loop Leader PD6600 Series User Manual

Loop Leader PD6600 Series Loop-Powered Meters 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. Pressing 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,
Dual-Scale (PV2), Backlight, Information, and Internal
Calibration.
Analog Output Calibration
(
AOUTCAL)
To perform the analog output calibration, it is recom-
mended to use a milliamp meter with a resolution of at
least 0.1 µA to measure the output current. The val-
ues saved internally during this procedure are used
for scaling the 4-20 mA output in the Setup menu.
4-20 mA Output Calibration Procedure
1. Go to the Advanced Features menu and
navigate to the SYSTEM menu and press
Enter. Navigate to AOUTCAL and press Enter.
2. The display will show 4 mA. The Loop Leader
mA output should now be close to 4 mA. Enter
the actual value read by the digital mA meter
on the second line of the display and press
Enter.
3. The display will show 20 mA. The Loop Leader
mA output should now be close to 20 mA.
Enter the actual value read by the digital mA
meter on the second line of the display and
press Enter.
4. The Loop Leader will now calculate the
calibration factors and store them.
5. Press Menu to exit.
Resetting the Meter to Factory
Defaults (
DEFAULT)
When the parameters have been changed in a way
that is difficult 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.
Enabling the Dual-Scale Feature
(
PV2)
Dual-Scale Mode
Top Line: Toggling Between Process Variable and Units
Bottom Line: Toggling Between Process Variable
(in different scale) and Different Units
For some level applications, such as displaying the
height and volume of a tank, a second PV can be
enabled which can be scaled to display a different
value based on the same 4-20 mA input. This is ac-
complished by enabling the dual-scale feature (PV2).
When the dual-scale feature is enabled, additional
menus will be displayed to allow for the programming
of the second PV. The input menu will display PV1
and PV2 for scaling and the display menu will allow
both PVs to be displayed on either line, for example.
See Display Functions & Messages on page 15 for
additional information on where additional dual-scale
specific menus will appear.
PV2 must be enabled in order to use the Round
Horizontal Tank feature. See Round Horizontal Tank
Linearization (
RH TANK) on page 32.
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 wiring diagrams on
page 13. The voltage drop is the same if the backlight
is not wired or if it is disabled in the software.
SYSTEM
SYSTM
AOUTCAL
SYSTM
DEFAULT
LOAD?
DEFAULT
RESET
DFAULT?
Meter Loads
Default Settings
and Restarts

Precision Digital Corporation Loop Leader PD6600 Series Specifications

General

Brand	Precision Digital Corporation
Model	Loop Leader PD6600 Series
Category	Measuring Instruments
Language	English