User manual

Columbia Weather Systems, Inc. 27
Section 4.
Secure the mast to the roof, using guy wires with sufficient tensile strength. The
Wall Mounting Method should utilize a mast of no more than 5 ft. maximum height,
unless it can be secured with guy wires.
Routing Cable
Avoid routing the cable near metal windows, metal door frames, metal gutters, or on
a metal tower.
Any mast or tower should always be properly earth grounded to minimize electrical
storm damage. The use of a properly grounded metal mast or tower, however, does
not insure protection from electrostatic discharge. These items could become elec-
trically charged resulting in damage to the sensors and/or console. This could
damage the system in the event of an electrical storm. Use insulated standoffs (user
supplied, see Section 4) when routing cable to help avoid this problem.
Mounting the Wind Sensor Assembly
Note: At this point, you will need to take the assembled and pre-calibrated Wind
Sensor Assembly and tools (including wrench and compass) to the roof mounting
location.
Attach the Wind Sensor Assembly to the mast. The mast should be inserted be-
tween the rounded section of the U-bolt assembly and the serrated edge of the U-
bolt clamp.
Tighten the two nuts on the U-bolt assembly so that the Wind Sensor Assembly is
lightly fastened to the mast. Final adjustment and tightening are described below.
With the direction vane/rain cap still secured with tape to the sensor body, rotate the
entire cross arm support/sensor assembly around the mast until the pointer on the
secured direction vane is pointing toward true north. Use a compass to help align
the pointer to the north. Once north has been located, tighten the cross arm support
U-clamp nuts securely with a wrench. Remove the tape from the rain cap/sensor
body. It should now rotate freely.
Use six plastic tie wraps to secure the cables to the cross arm support and mast.
Use one tie wrap for the wind speed cable and one for the wind direction cables.
The other four tie wraps can be placed on the mast. Be sure that one is used at the
mast base. Tighten the tie wraps securely and clip off any excess length with a wire
cutter tool.
Route the cable back to the Capricorn II Plus Console. If mounting on a roof, route
the sensors through a vent or other opening into an attic or crawl space.
CAUTION - There may be electric wires in the wall. We recommend that you
shut off the electricity in the room(s) where you are drilling.
For best results when routing the cable through the exterior wall adjacent to the
console: