Sensitivity Adjustment; Fine-Tune Alignment - Bosch D296 Installation Instructions Manual

D296/D297 | Installation Instructions |
8. Align the receiver to the transmitter image
following Steps 1 through 7.
9. Ensure the receiver's green LED is flashing,
indicating the preliminary alignment is complete.
10. If the receiver's green LED is not flashing, repeat
Steps 1 through 9 for the receiver.
6.2

Sensitivity Adjustment

1. Select the appropriate sensitivity setting based on
the distance between the transmitter and receiver.
(refer to Table 3 which lists distances including
some settings that overlap). Select a lower setting
for a more sensitive detection or select a higher
setting for better immunity to false alarms.
Table 3: Sensitivity Settings
Switch Sensitivity
Setting
0 30%
1 60%
2 20%
3 30%
4 40%
5 50%
6 60%
7 70%
*
8
*
9
*
Do not use positions 8 and 9. They are not valid.
2. Set the receiver's Sensitivity switch to your selected
setting. The Sensitivity switch is located to the right
of the optical module. The indicator, or pointer
marking, runs along the side of the switches' shaft
(refer to Figure 13).
Figure 13: Sensitivity Switch
8
6.0 Setup
Alarm Beam Length
Response
5 sec 30 ft to 100 ft
(9 m to 31 m)
5 sec 100 ft to 350 ft
(31 m to 107 m)
30 sec 30 ft to 50 ft
(9 m to 15 m)
30 sec 45 ft to 75 ft
(14 m to 23 m)
30 sec 70 ft to 100 ft
(21 m to 31 m)
30 sec 90 ft to 140 ft
(27 m to 43 m)
30 sec 120 ft to 180 ft
(37 m to 55 m)
30 sec 160 ft to 350 ft
(49 m to 107 m)
0

6.3 Fine-Tune Alignment

1. Connect the D1005 Test Cable (supplied) to Pins 1,
2, and 3 of P6. These pins are located to the right of
the receiver's terminal strip (refer to Figure 14).
Figure 14: D1005 Connection
1 - Connector wires (a = white, b = red [+],
c = black [-]
If the Remote Indicator Plate connector is installed,
temporarily disconnect it.
2. Connect a 20,000 Ω/VDC VOM (or greater) to the
D1005's black (–) and red (+) leads. Set the meter
scale so you see the readings ranging from 0 VDC
to 5 VDC.
3. Check the three receiver LEDs on the receiver.
If the receiver gets the beam, the green LED flashes
and the red and yellow LEDs are steadily on.
If the green LED is steadily on, the beam is not
reaching the receiver. Realign according to the
procedure described in Section 6.1 Preliminary
Alignment beginning on page 7.
4. Observe the meter readings. Adjust the receiver's
optical module using the horizontal and vertical
fine-tuning adjustment screws for a maximum meter
reading.
This is the most critical alignment process.
For the most effective system operation,
ensure you have peak voltage during the
fine-tune alignment.
When performing fine-tune alignment, keep
your arms and hands away from the front of
the receiver and out of the beam path.
The maximum voltage peak reading varies,
depending on the distance between the transmitter
and receiver. The acceptable peak voltage range is
from 0.50 V to 5.00 V. The voltage at the receiver is
greater at shorter distances.
Make a note of the alignment voltage. It might be
helpful if you need to troubleshoot at another time.
Bosch Security Systems, Inc. | 09/06 | 31344F
1
a c
b