The Interface Solution Experts
17
SPA
Site-Programmable Volt &
Milliamp Limit Alarm Trips
Applying Input —
“Bench Ranging” the HLPRG
With this method of calibrating input to the SPA, the
inputs are “captured” at their zero and full scale levels.
Figure 10 shows the setup required for applying and
capturing input scaling for the HLPRG SPA. After the
connections shown in the diagram have been made,
apply appropriate power and allow approximately 5
minutes for unit warm-up/stabilization.
Figure 11 shows the SPA menu used in this procedure.
Figure 10. The HLPRG SPA Bench Scaling Setup
1
. From the “APLY INPT” point of the HLPRG SPA
Main Menu, press SELECT.
2. Use the arrow buttons to bring up the desired
parameter, Save Zero, Save Full, or Exit Input
to abort the Bench Ranging procedure.
3. When the appropriate display for the parameter
to be input is showing on the LCD, press
SELECT.
The display will show the engineering units
selected in the Configure Options menu,
discussed earlier in this section.
4. Vary the input to either the zero or full scale
level from the intended application.
5. When the display shows the appropriate
readout, press SELECT to capture the value in
the HLPRG SPA memory.
6. Repeat steps 2 through 5 until both the
zero and full scale values from the intended
application have been captured.
7. If the SPA has been set up to operate in Linear
Mode and no analog output option is present,
go to step 10.
8. If the SPA has been set up to operate in Linear
Mode and an analog output option is present,
go to step 11.
9. If neither step 7 or 8 apply, use the arrow
buttons to bring up the “EXIT INPT” display
from step 5, and press SELECT to return to the
Main Menu at the Scale Display point.
10. Use the arrow buttons to bring up the “EXIT
INPT” display from step 5, and press SELECT
to return to the Main Menu at the Configure
Alarm(s) point.
11. Use the arrow buttons to bring up the “EXIT
INPT” display from step 5, and press SELECT
to return to the Main Menu at the Scale Output
point.
VOLTAGE
SOURCE
_
+
CURRENT
SOURCE
_
+
AC OR DC
POWER
SUPPLY
GND
VIEW
SELECT
SITE-PROGRAMMABLE
ALARM
SPA
