Bosch Security Systems, Inc. | 3/11 | 4998141226-024
DS9370-BEL | Installation Instructions |
5.0 LED Operation
5.0 LED Operation
The DS9370-BEL uses a tri-color LED to indicate alarm
and supervision trouble conditions (Table 1).
Table 1: LED Trouble Conditions
LED Cause
Steady red Unit alarm
Steady yellow Microwave activation (Walk Test)
Steady green PIR activation (Walk Test)
Flashing red Warm-up period after power up
Refer to Table 2 for the LED operations and to Table 3
for the PIR sensitivity selections.
Table 2: LED Operations
Feature Setting Description
ON Operates the tri-color LED.
OFF If LED indication is not wanted
after setup and the Walk Tests
are complete, place in the OFF
position.
LED
ON/OFF
Pins (refer
to Figure 7)
No jumper across the On or
Off pins disables the LED.
Table 3: PIR Sensitivity Selection
Setting Description
HI*
Use this setting if more sensitivity is needed.
LOW**
Recommended setting for most installations.
Tolerates environmental extremes.
* More sensitive to environmental changes that can cause false
alarms.
** The detector is shipped in Low Sensitivity Mode.
Refer to Figure 7
6.0 Walk Test
1: Ensure the LED jumper is set to
ON (refer to Item 2 Figure 7).
2: To avoid false alarm, set the microwave
range to its minimum setting before
starting the Walk Test (refer to Item 3 in
Figure 7).
3: After removing or replacing the cover,
wait 1 min for the detector’s microwave
to settle. Wait at least 5 sec between the
walk testing procedures.
1. Wait at least 2 min after power up to start the Walk
Test.
The red LED flashes until the detector stabilizes and
no movement is detected for 2 sec.
2. Watch the LED as you walk towards the edge of the
pattern (refer to Figure 1 on page 2). The LED lights
at the outside edge of the coverage range. Refer to
Table 4 for the LED indicators.
Table 4: LED Lights
LED Lights to Identify
Green PIR pattern.
Yellow the microwave pattern.
Red Microwave and PIR Modes
3. Repeat Step 2 from different directions until you
adequately verify the coverage pattern.
4. If the required microwave coverage is not achieved,
increase the microwave adjustment by slightly
turning it clockwise (Item 3 in Figure 7).
5. Wait 1 min after adjusting the microwave range
before continuing the Walk Test.
Do not adjust the microwave range higher
than needed.
7.0 Supervision
• Microwave: The complete circuit operation of this
subsystem is checked approximately every 4 h.
• Default: The detector defaults to PIR protection if
the microwave subsystem fails. The detector
indicates an alarm using the green LED only and by
activating the alarm relay.
1 - PIR sensitivity 3 - Microwave
2 - LED ON and OFF
HI
LOW
ON
OFF
MAX PIR Signal
Gain
1
2
3
Figure 7: LED ON and OFF Pins and
PIR Sensitivity Selection Pins
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