ETS-Lindgren 7-TR Tripod Positioner - Manual (Page 14)

14 Introduction www.ets-lindgren.com
The pneumatic polarization option consists of the following components:
 Air cylinder —Attaches to the carrier.
The air cylinder is made of non-conductive material, and is connected
by 6.3-mm (1/4-in) tubing to the Air Polarization Interface mounted to
the base of the 7-TR. The air cylinder will polarize antennas up to
13.6 kg (30 lb).
 Twin air hose —Connects to Air Output.
 Air hose —Connects to Air Input.
The 1/4-in air hoses are UV stabilized with a 1/8-in National Pipe
Thread (NPT) fitting. The customer may supply a metric fitting for a
4-mm tube.
 Air Polarization Interface —Mounts to the rear of the 7-TR mast.
The Air Polarization Interface requires 120 VAC (230 VAC is optional),
and approximately a 0.28 cubic meters/minute (1 CFM) air supply at
6 bars (90 PSI).
 Pneumatic Interface —Mounts to the rear of the 7-TR mast, above the
Air Polarization Interface.
 Fiber optic cable —Using a controller such as the Model 2090
Multi-Device Controller (or next generation ETS-Lindgren controller, if
applicable), enables horizontal and vertical boom rotation.
An air supply of 0.28 cubic meters per minute (1 CFM) at 6 bars (90 PSI) is
required for the pneumatic polarization option. It is important to have clean, dry
air; the use of a 40-micron filter in close proximity to the tripod installation is
recommended (not included).
For information on assembling a 7-TR, see page 25. For information on using the
7-TR, see page 43. For information on using the polarization option, see
page 46.