Bosch D296 Series, Installation Manual

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22 en | Setup Long-range beam smoke detectors
2017.03 | 7.0 | F.01U.068.899 Installation manual Bosch Security Systems, Inc.
7. Replace and secure the transmitter's cover.
8. Ensure the transmitter's green LED is flashing.
9. Replace and secure the transmitter's access door.
10. Align the receiver to the transmitter image following Steps 1 through 7.
11. Ensure the receiver's green LED is flashing, indicating the preliminary alignment is
complete.
12. If the receiver’s green LED is not flashing, repeat Steps 1 through 9 for the receiver.
6.2 Fine-Tune alignment
To fine tune the alignment of the transmitter and receiver, use the following procedure:
1.
Connect the D1005 Test cable (supplied) to Pins 1, 2, and 3 of P6. The pins are located
to the right of the receiver’s terminal strip. See the following figure.
Figure 6.5: D1005 Connection
1 Connector wires: a = white, b = red [+], c = black [-]
Notice!
If the Remote Indicator Plate connector is installed, temporarily disconnect it.
2. Connect a ≥20,000 Ω/VDC VOM 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 Preliminary alignment, page 20.
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.
Notice!
This is the most critical alignment process. For the most effective system operation, ensure
you have peak voltage during the fine-tune alignment.
Notice!
When performing fine-tune alignment, keep your arms and hands out of the beam path.