WeatherHawk 240 Signature Wireless Weather Station - Manual (Page 21)

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TP1-MX—Tripod Mast Extension
The TP1-MX extension fits into a ¼” diameter post and is used to increase the height of the WeatherHawk
wind sensors (see TP1 installation procedures). When used with the TP1, one extension provides a wind
sensor height of 69” to 89” (179 to 231 cm). A second TP1-MX can be used to provide a wind sensor
height of 98” to 120” (255 to 312 cm).
The TP1-MX includes:
¼” (32.5 cm) OD, 35” (89 cm) long steel post
with one end crimped
a. Do not use more than two TP1-MX extensions with the TP1 Tripod Assembly.
b. When two TP1-MX extensions are used, the TP1-GK Guy-wire Kit is also recommended.
TP1-GK—Tripod Guy-wire Kit
The TP1-GK is used to increase the tripod’s stability (see Procedure 3: Guy-wire Kit Installation, p. 9).
It is intended for permanent installations, installations subject to consistently high wind speeds, or TP1
tripods using two mast extensions.
The TP1-GK includes:
Plastic-coated, steel guy-wire cable
Bracket for securing guy-wires to the TP1 mast
(3) S-hooks
(3) turnbuckles
(6) clamps
TP1-GR—Tripod Grounding Kit
The TP1-GR provides hardware needed to properly ground the WeatherHawk and tripod. Properly
grounding the station prevents electrical surges and lightning from damaging the WeatherHawk
(see Procedure 5: TP1-GR Ground Kit Installation, p. 13).
The TP1-GR includes:
36” (91.4 cm) long copper sheathed steel
electrical ground rod
Electrical couplings for connection to the
ground rod and tripod
5 ft length of plastic-coated, #4 stranded
copper cable
3 ft length of 14 AWG stranded copper
wire with a connection lug on one end
a. Because proper grounding of the system is required for both personal safety and reliable
system function, we recommend a qualified electrician install the grounding kit.
b. If the station is not properly grounded, a computer connected to the WeatherHawk can also
be damaged by electrical surges.
c. This kit is for ground installations only. A qualified electrician should design and install
and the grounding system for a roof mounted station.