The Interface Solution Experts
13
SPA
Site-Programmable Volt &
Milliamp Limit Alarm Trips
Configure Function Options
This menu allows the user to choose between Linear
and Custom modes of functioning.
Linear Function. In its Linear Mode, the HLPRG SPA
behaves much like a simple input meter. The display
is set by the user to show the input in either mA or
volts. Its scaling is tied to any input scaling performed
(set in another menu). If equipped with one of the AO
options, SPA output also can be scaled independently
with respect to the input.
Custom Function. The HLPRG’s Custom Mode sets
the unit up for independent programming of input
scaling, display scaling, and, if equipped with the AO
option, output scaling. In Custom Mode, the user can
select °C, °F, % of scale, or Blank (for raw display); or
a user-specified, 4-place engineering unit, set at the
factory.
Also, if Custom Mode is selected, the user can select
either linear or non-linear display scaling, which en-
ables a user-programmed, 20-point linearization set in
a separate menu.
NOTE:
The SPA’s Linear Mode and its linearizing
of the Custom Mode functioning are not the
same. Refer to Figure 8.
Figure 8 gives an overview of the HLPRG SPA
Configure Options menu.
1. From the “CONF OPTS” screen of the
Main Menu, press SELECT. This brings up
“SET FUNC”, which is the access screen
for choosing between Linear and Custom
Function Modes.
2. Press SELECT again to set the desired
function mode, or use the arrow buttons
to move to “EXIT OPT” and bypass the
Select Options procedure.
Note that, depending upon the Mode
setting, it may be necessary to bypass
“SET LIN” screen.
3. With “SET FUNC” showing on the LCD,
use the arrow buttons to toggle between
“CUST FUNC” and “LINR FUNC”. Refer
to the explanation above for information
about each of the operating modes.
4. When the LCD shows the desired mode,
press SELECT.
5. If “CUST FUNC” was selected, go to
step 7.
6. If “LINR FUNC” was selected, the LCD will
now show “EXIT OPTS”.
Use the arrow buttons to return to “SET
FUNC” (step 3), or press SELECT to
return to the Main Menu.
7. Press SELECT to begin the process of
setting the desired engineering units to be
displayed during HLPRG operation.
8. Use the arrow buttons to “scroll” through
the available options.
9. When the appropriate units are showing
on the LCD, press SELECT.
This brings up a sub-menu that allows
the user to choose between a linearized
or non-linearized display of the selected,
custom engineering units.
10. Use the arrow buttons to toggle
linearization on or off, then press SELECT
to go to “EXIT OPTS”.
11. Press SELECT again (from “EXIT OPTS”)
to return to the Main Menu, or to correct
any mistake, go to step 2.
