- 3 -
DT-6360STC sensors use the event sequence in Figure 6
(below) to determine an alarm:
If the microwave technology malfunctions (determined by a self-
test), the sensor reverts to a PIR sensor.
DT-6360STC ALARM SEQUENCE (MAP PROCESSING)
Note: An event is the detection of a microwave signal or a single
edge of a PIR signal. (The PIR pulse count is 3.)
•
If a self-test error is detected, the self-test LED pattern
replaces the INFORMER LED pattern and the Trouble
output becomes active for eight seconds. (Refer to the
Troubleshooting Matrix on page 4.)
THE INFORMER CIRCUIT
The INFORMER circuit counts the number of events registered
by both the microwave and PIR technologies, and uses the
resulting ratio to determine if either technology is misapplied or
working properly.
The informer ratio is preset at 32 to 1. This ratio means that before
one technology registers 32 events, the other must register at
least one event. If it does not, trouble will be signaled.
When an INFORMER condition occurs, the trouble output
becomes active until the INFORMER condition is cleared, and
the LEDs display an INFORMER trouble code. (By installing the
jumper at position W3, the LEDs will display an INFORMER
trouble code, but there will be no trouble output. See Figure 5.)
The DT-6360STC immediately performs a self-test to determine if
the problem is internal.
•
Note: If eight microwave (and no PIR) events occur within one
minute, the INFORMER circuit will disable itself for eight minutes.
This feature allows the INFORMER circuit to compensate for
temporary environmental disturbances. If a PIR event occurs
during the disable period, the microwave is automatically reset.
Figure 6
MAP Signal Sequence
Important: If the LEDs are enabled by Remote LED Enable and an
INFORMER condition occurs, the LEDs will flash the INFORMER
trouble code until the condition is cleared, even if the LEDs are
subsequently remotely disabled.
M.A.P.
Processing
W1 Jumper
Position
1
2
3
On pins 1 & 2
On pins 2 & 3
Removed
If no self-test error occurs, the unit continues to display the
INFORMER LED pattern. The problem is misapplication.
Walk-test the DT-6360STC to pinpoint the cause.
