UT20
UT20
Orderable20 ft Universal Tower with Adjustable Mast
Overview
The UT20 is a durable instrument tower that can be used for a variety of applications. The UT20 tower provides a sturdy mount for many meteorological monitoring applications—especially fire weather stations, where a 6 m (20 ft) measurement height for wind sensors is standard. It also holds antennas, solar panels, environmental enclosures, radiation shields, and crossarms. It is a versatile instrument mount: many of the same sensor mounts that are used with either our tripods or other towers can be used with the UT20.
Technical Description
The UT20 tower includes two 3-m (10 ft) sections, one extendable mast, and two cable-tie kits. It has a 1.5-m (5 ft) length and a 3.175-cm (1.25 in.) outer diameter [swagged to 2.5 cm (1 in.) OD]. The 3-m sections are constructed from 2.5-cm (1 in.) OD aluminum tubing.
Top 3 m Section
This section's width is 33.3 cm (13.1 in) on a side (center of tubing to center of tubing).
Bottom 3 m Section
This section's width is 43.2 cm (17 in) on a side (center of tubing to center of tubing).
Mounting Base, Grounding Kit, and Guying Kit
This tower requires a mounting base and grounding kit. Campbell Scientific also recommends guying the UT20 with our UTGUY Guy Kit. See Ordering Info on web page for more information.
Benefits
- Sturdy, long-term instrument mount
- Corrosion-resistant
Specifications
- Material
- Hardened drawn 6063-T832 aluminum
- Guyed Tower Area Requirements
- ~3.5 m
(11.5 ft) radius
- Required Concrete Pad Dimensions
- 91 x 91 x 122 cm
(36 x 36 x 48 in.) for B18 Concrete Mounting Base
Concrete pad requirements assume heavy soil; light, shifting, or sandy soils require a larger concrete pad. - Extendable Mast
- 1.5 m (5 ft) length
- Extendable Mast
- 3.175 cm (1.25 in.) outer diameter
(swagged to 2.5 cm [1 in.] outer diameter)
- Pipe Outer Diameter
- 2.5 cm
(1.0 in.) for vertical tubing of upper section
- Pipe Outer Diameter
- 3.18 cm
(1.25 in.) for vertical tubing of lower section
- Pipe Outer Diameter
- 0.953 cm
(0.375 in.) for cross supports/webbing
- Crossarm Measurement Height
- 6 m
(20 ft)
- Height
- 6.1 m
(20 ft)
- Shipping Dimensions
- 310 x 46 x 46 cm
(122 x 18 x 18 in.)
- Shipping Weight
- 23 kg
(50 lb)
Maximum Wind Load Recommendation
- B18 Base (unguyed)
- 177 km/h
(110 mph)
- RFM18 Base (with UTGUY)
- 177 km/h
(110 mph)
- UTBASE (unguyed)
- 177 km/h
(110 mph)
- -NOTE-
- Wind load endurance is affected by quality of anchoring and installation; guy wire tension; soil type; guy angle; and number, type, and location of instruments fastened to the tower.
Wind load recommendation assumes proper installation, proper anchoring, adequate soil, and total instrument projected area of less than 0.19 m2 (2 ft2) at the height of the tower.
For the RFM18 base, the wind load recommendation also assumes that the UTGUY’s turnbuckles are preloaded just enough to equalize tension and that the tower is guyed at a 60 degree angle relative to the ground (maximum).
Accessories
(8)UTBASE
Base Kit for UT20/UT30
OrderableB18
Concrete Mounting Base for UT20 and UT30
OrderableUTGND
Universal Tower Grounding Kit
OrderableUTGUY
Universal Tower Guy Kit
OrderableUTGUYSS
Stainless-Steel Universal Tower Guy Kit
OrderableRFM18
Universal Tower Flat Roof Mounting Base
RetiredCM204
4 ft Crossarm with One CM210 Mounting Kit
OrderableCM206
6 ft Crossarm with One CM210 Mounting Kit
Orderable

