Set up
The shut down delay time is set with the Time Delay Potentiometer on the face of the SDT.
Point the arrow on the potentiometer to the desired delay.
To Test
• With the engine running the Green LED will be ON and power is applied to the loads.
• Turn the engine OFF and the Green LED will flash at a 2 second rate to indicate normal
timing.
• Momentarily close the Test Switch. The Green LED will flash rapidly indicating fast test
timing. Shut down will occur in 1/100 of the normal time set. With a 1 hour setting the SDT
will time out in 36 seconds. The Red LED will come ON when the outputs turn OFF.
• Momentarily close the Over-ride Switch. The Green LED will flash at the normal rate in-
dicating normal timing in OVER-RIDE mode. The over-ride switch will provide 12 minutes
of additional operation after the normal time period has been completed even with battery
voltage lower than 10.5 (21)volts. The over-ride switch does not work if the output is already
on.
• Momentarily close the Test Switch. The Green LED will blink rapidly indicating fast test
timing. Shut down will occur in about 8 seconds. The Red LED will come ON.
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Notes
1. The SDT outputs will turn ON if the automobile battery is charged from an external
source. The output loads should be turned OFF when externally charging.
2. The low voltage detection circuit has a 10 second delay to avoid load disconnection when
starting the automobile.
Adj. Time Potentiometer
Output Terminals
Off LED
Test Switch
+12(+24VDC
In Terminal
On/Timing LED
Over-Ride Switch
Output Fuses
(Optional)
Summary of Contents for DC Power Adapters
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