All Weather Inc 8339, Руководство пользователя

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Model 8339 Ceilometer User’s Manual
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4.2.4 Ceilometer Data Connection
1. Connect the M491894-00 cable from the Lightning Surge Suppressor (Figure 8) to the
CEILOMETER DATA connector on the underside of the Ceilometer (see Figure 10).
Figure 10. Ceilometer Connectors
2. Connect the data cable’s circular connector to the M491893-00 cable connector from the
Lightning Surge Suppressor (Figure 8).
3. Route the data cable neatly down the side of the mast to the signal junction box near the
bottom of the mast. Secure the cable at 12" (30 cm) intervals with cable ties.
4. Insert the data cable through a compression fitting into the signal junction box and pull the
data cable through the signal conduit to the Data Collection Platform (DCP).
5. Connect the other (unterminated) end of the cable inside the DCP as follows:
a. Connect the green wire to terminal block TB4, pin 3
b. Connect the brown wire to terminal block TB4, pin 4.
c. Connect the black wire to terminal block TB4, pin 7.
6. Connect one end of a length of ground cable (4 AWG multi-strand insulated wire, available
from All Weather, Inc. as Part Number T605000), to the grounding clamp on the underside of
the Ceilometer (Figure 10) and route the ground cable along the mounting pipe to the ground
clamp near the bottom of the mounting pipe. Cut the end of the ground cable to length and
connect this end that ground clamp.
7. Secure the Lightning Surge Suppressor and the Ceilometer ground cables to the pipe using the
cable ties provided.
8. Check that the contractor provided a ground connection from the pipe to the ground rod. If not,
that will have to be done using de-ox grease on the below-ground connections.