Campbell UT10, Instruction Manual

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UT10 Universal Tower
3
Step ladder (6 ft)
Station manuals
Station log and pen
Open end wrenches: 3/8 in, 7/16 in, 1/2 in, (2) 9/16 in
Socket wrench and 7/16 in deep well socket
Adjustable wrench
Pliers
Conduit and associated tools (as required)
Felt-tipped marking pen
Claw hammer
Pipe wrench (12 in)
Tape measure (12 ft to 20 ft)
3/8 in nut driver
Level (24 in to 36 in)
Teflon tape or pipe dope
5/64 in Allen hex wrench
3.3.3 Supplies for Power and Communications Options
AC Power
•
Wire
•
Conduit
•
Junction boxes as needed
Phone Modem
•
Hayes compatible calling modem for PC
•
Phone line to weather station or junction box
Short-Haul Modem
•
4-conductor communications cable from PC to weather station or
junction box
•
6 ft copper ground rod and clamp for PC surge protection (optional)
4. Siting and Exposure
Selecting an appropriate site for the weather station is critical in order to obtain
accurate meteorological data. In general, the site should be representative of
the general area of interest, and away from the influence of obstructions such
as buildings and trees.
The weather station should not be located where sprinkler irrigation water will
strike sensors or instrument enclosure.
Some general guidelines for site selection are listed below, which were
condensed from EPA (1987, 1989)
1,4
, WMO (1983)
2
, and AASC (1985)
3
publications.
4.1 Wind Speed and Direction
Wind sensors should be located over open level terrain, and at a distance of at
least ten times (EPA) the height of any nearby building, tree or other
obstruction, as illustrated in FIGURE
4-1 .