Vaisala AWS330, User Manual

Page: 98 / 298

User's Guide ______________________________________________________________________
94 __________________________________________________________________ M211296EN-A
Grounding the Enclosure
Equipment grounding and lightning protection grounding must be
done separately.
For lightning protection grounding, see that the lightning rod has been
grounded properly, as instructed in section Equipment Grounding and
Lightning Protection on page 36. Connect the end of the lightning rod
grounding cable to the grounding rod close to the guy wire foundation
(number 1 in Figure 4 on page 37). Use proper copper wire for the
connection.
For equipment grounding, connect the enclosure grounding rail (number
4 in Figure 53 on page 97) to grounding rod close to mast foundation
(number 7 in Figure 4 on page 37). Use proper copper wire for the
connection.
Installing Backup Batteries
Two backup batteries, each with 26 Ah capacity, provide backup power
for the system. The batteries are charged through the battery regulator by
the solar panel or the AC power supply. The batteries are sealed and
maintenance-free. The batteries are mounted inside the enclosure as
shown in Figure 50 below.
1012-192
Figure 50 Backup Batteries Positioned Correctly