16
The Interface Solution Experts
SPA
2
Programmable Current/Voltage
Limit Alarm Trips
D
D
D
D
U
U
U
U
INPUT
ZERO
INPUT
FULL
SCALE
ZERO
SCALE
FULL
EXIT
SCALE
SCALE
INPUT
SEL
D
SEL
TRIM INPUT menu
If Scale Mode OFF
XXXXX
EGU
XXXXX
EGU
XXXXX
EGU
XXXXX
EGU
U
D
SEL
U
SEL
SEL
SEL
If Scale
Mode OFF
SEL
If Scale
Mode ON
SEL
SEL
SEL
1. When scaling the input, the value
displayed represents the actual input.
2. When the SCALE INPUT menu is
accessed, the APPLY INPUT menu
is skipped and the TRIM INPUT menu
appears.
NOTES:
U
D
U
D
U
D
Scaling the Input
Figure 8 gives an overview of the Input Scaling menu.
Scaling allows you to take your PV (Process Variable)
reading and manipulate it to a more customized dis-
play range. PV is the unit read after selecting your
input type. For example, choosing a Current input
would then produce a PV displayed in mA.
Also known as “Smart Ranging”, scaling of the SPA
2
(HLPRG) allows the user to set the zero and full scale
values of the input from the intended application, with-
out having to connect the unit to any calibration equip-
ment.
Continue with the “SCALE INPUT” if you enabled
scaling in the previous menu. To proceed, follow the
steps below.
Note:
When using the front panel push buttons to enter
your scaling values, you may enter only whole
number increments. To adjust your value past the
decimal point, you must use the PC Configuration
Program.
1.
At the “SCALE INPUT” display, press
SELECT.
2.
Press
SELECT at the “INPUT ZERO”
parameter and enter the value you want
displayed when your input is at zero. Press
SELECT.
3.
Press
SELECT at the “INPUT FULL” screen.
Enter the value you wish displayed when your
input is at full scale. Press
SELECT.
If you selected “SCALE OFF” in the “CONFG
OPTNS” menu, the menu skips to Step 6. If
you selected “SCALE ON”, proceed to Step 4.
4.
Next, “SCALE ZERO” is displayed. Use the
UP and DOWN buttons to adjust your scaled
zero value. This is the value that will be
displayed when you are at the zero end of your
display range. Press
SELECT.
5.
“SCALE FULL” appears. Press
SELECT to
enter the menu. Enter the value you wish as
your full scaled range– the value displayed
when you are at the full end of
your range.
Press
SELECT.
6.
“EXIT SCALE” appears. If all scaling
parameters have been set, press
SELECT.
The next menu selection to appear is “TRIM
INPUT”.
Figure 8.
SCALE INPUT Menu
