1-1
Section 1. Site Preparation and Assembly
of the Tower
Before starting any work on your UT20 or UT30-based weather station, please read the
SAFETY INSTRUCTIONS at the front of this manual.
This section describes the site preparation for, and preliminary assembly of, the
Instrumentation Tower.
See Section 2 for the assembly of sensors and other components and the final erection of the
tower. Section 2 also details the procedure for guying the tower where this is required and
where the optional guying kit is provided.
1.1 Introduction
The UT20 and UT30 are tubular aluminium towers with two (UT20) or three
(UT30) main sections plus a mast assembly, giving an overall height of
approximately 7 m and 10 m respectively. The sections are triangular in cross-
section and consist of three aluminium tubes braced by continuous aluminium rod
welded in a multiple ‘Z’ pattern. This gives a very low overall weight and the tower
can easily be erected. Optional guy rope assemblies can be supplied where required.
Figure 1-1 UT20 and UT30 Towers, showing Tower Sections
Mast Assembly
Leg Assembly
