iii
Figures
1-1 UT20 and UT30 Towers, showing Tower Sections .......................
1-1
1-2 UT30 Tower Assembly, with Enclosure, Solar Panel and a
Typical Range of Sensors.................................................................... 1-2
1-3 Bottom Tower Section and Base Installation ...................................... 1-5
1-4 Special Roof Mounting Base Installation for UT30..........................
1-6
1-5 Top View of Base and Optional Ground Anchor Layout..................... 1-7
1-6 Ground Anchor Installation.................................................................. 1-8
1-7 Fitting the Tower Sections .................................................................. 1-9
2-1 Attaching the Lightning Spike ............................................................ 2-2
2-2 Top Tower Section at Ground Level................................................... 2-3
2-3 Attaching the Top Tower Section ....................................................... 2-4
2-4 Sighting Along the Tower to Check the Magnetic Bearing ................. 2-5
2-5 Weighting the Wind Sensor Perpendicular to the Ground ................... 2-6
2-6 Both Mounting Arms and Sensors in Final Position on the
Tower Mast Assembly ........................................................................ 2-6
2-7 Installation of Guy Wires to Tower...................................................... 2-8
2-8 `Walking’ the Tower into the Upright Position.................................... 2-9
2-9 Installation of the Guy Wires to the Ground Anchors.......................... 2-9
2-10 Fitting the Enclosure ........................................................................ 2-11
2-11 Fitting the Solar Panel ...................................................................... 2-11
2-12 Grounding the Datalogger and the Tower........................................ 2-14
A-1 Declination Angles - True North to East of Magnetic North............. A-1
A-1 Declination Angles - True North to West of Magnetic North ........... A-1
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