26
en | Troubleshooting
Long-range beam smoke detectors
2017.03 | 7.0 | F.01U.068.899
Installation manual
Bosch Security Systems, Inc.
Red
LED
Yellow
LED
Green
LED
Terminals 4
and 5
Terminals 6
and 7
Condition
Solution
Off
On
Flashing
Open
Open
Trouble. If the
reference voltage is
less than ~2 VDC,
dust on the lens
reduced the signal
strength or vibration
misaligned the
receiver.
Clean the
transmitter and
receiver covers.
If the reference
voltage does not
return to
3.8 VDC to
4.2 VDC, realign
the receiver and
press the Setup
switch.
Off
On
Flashing
Open
Open
If the reference
voltage is greater
than ~4.2 VDC, the
beam strength
increased because an
initial beam
misaligned or a
partial blockage was
removed at setup.
Perform a fine-
tune alignment
of the receiver
and use the
Setup button.
On
Off
Flashing
Closed
Closed
Alarm
Determine the
cause of the
alarm and reset
the receiver.
On
Off
Flashing
Closed
Open
Alarm. The access
door is missing or
loose.
Determine the
cause of the
alarm and reset
the receiver.
Replace the
access door.
On
On
On
Closed
Open
Alarm and Trouble. An
alarm occurred, then
the beam was
blocked.
Determine the
cause of the
alarm and reset
the receiver.
Clear the beam
path.
Содержание D296 Series
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