The Interface Solution Experts
17
SPA
Site-Programmable RTD &
Thermocouple Limit Alarm Trips
Configure Alarm(s)
This menu sets:
• Trip point(s)
• Deadband(s)
• Trip delay(s)
• High alarm or Low alarm function
• Latching or Non-latching operation
Figure 9 gives the menu overview.
1. From the “CONF ALRM” screen of the
Main Menu, press SELECT.
2. Press SELECT again to access the
settings for the first installed alarm, or use
the arrow buttons to access the “ALRM
EXIT” screen. Pressing SELECT from
“ALRM EXIT” returns to the Main Menu at
“PASS WORD”.
3. Use the arrow buttons to scroll through the
alarm operation parameters.
Press SELECT to access the settings for
the displayed parameter.
For convenience, it is recommended that
the settings be entered into SPA memory
in the order that they come up in this step
(shown in Figure 10 from top to bottom).
NOTES:
There are two options for setting the trip points
of the installed alarms,“ENTR TRIP” and “INP
TRIP”. In the “ENTR TRIP” menu, the user
employs the Smart Ranging feature of the
SPA, entering the desired trip point with the
front panel push buttons. (Steps 4 through 6)
In the “INP TRIP” menu, the SPA must be set
up with calibration equipment (see Figure 10).
In this, the Standard Ranging procedure, the
unit “captures” its trip point from the input of an
adjustable source. (Steps 7 through 14)
ENTER TRIP
If the value of the trip point is known, use
the Smart Ranging feature of the SPA to
program the value into SPA memory. If
the trip point is unknown, skip to step 7,
INPUT TRIP.
4. From “ENTR TRIP” in step 3, press
SELECT.
5. Use the arrow buttons to ramp the display
to the trip point value, and press SELECT.
This enters the displayed value into SPA
memory, and brings up the “ENTR DB”
(enter deadband) display.
6. Skip to step 14.
INPUT TRIP
A signal can be applied to the input
terminals of the SPA, using the setup
shown in Figure 10. With this setup and
the following procedure, the unit can
“capture” the desired trip point.
7. Install the SPA being configured
into the setup shown in the figure,
apply appropriate power, and allow
approximately 5 minutes for stabilization/
warm-up.
8. Access the configuration menus, and
use the down arrow to access the “CONF
ALRM” menu.
9. Press SELECT.
10. Use the arrow buttons to access “INP
TRIP”.
11. Press SELECT. The display will flash the
input level present at the terminals.
12. Adjust the input to the desired trip point
level.
