SPA
8
The Interface Solution Experts
Site-Programmable RTD &
Thermocouple Limit Alarm Trips
Internal Settings
The Failsafe/Non-failsafe relay and the password
security functions of the SPA are controlled by means
of simple DIP switches and a single jumper inside the
unit housing.
If the unit is equipped with the AO or AOZ options, volt-
age and current sink/source selection is also inside.
The SPA housing is fitted with a sliding access door in
its bottom panel. Figures 2, 3, and 4 show the panel
and the location of each of the controls for setting:
• Password Security ON/OFF
(Figure 2)
• Failsafe/Non-failsafe Alarm Function
(Figure 3)
• Current Source/Sink or Voltage
(Figure 4)
(Available in AO-equipped SPAs only)
NOTE:
SPAs equipped with the DPDT option make
use of switches 1 and 2 only (see Figure 3).
Figure 2. Setting the Internal Jumper for Password Security ON or OFF
SLIDING PANEL
SPA UNDERSIDE
SET PASSWORD SECURITY
PASSWORD SECURITY
IS ON. PASSWORD
REQUIRED.
PASSWORD SECURITY
IS OFF. PASSWORD
NOT REQUIRED.
NOTE: THE THREE PINS TOWARD THE LEFT SIDE OF THE COMPARTMENT
ARE FOR FACTORY TESTING ONLY.
DO NOT INSTALL JUMPERS ON THESE PINS!
BACK
NO1
CM1
NC1
NO2
CM2
NC2
GND
RELAY 1 RELAY 2
POWER
AC OR DC
