This is a quick Information Sheet to provide basic details on Mounting Systems, Inc. Sigma "Pure" racking solution

1. Portrait installation
Open terrain
Unframed module Framed module Orientation
portrait
Orientation
landscape
Warranty
year
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Sigma Pure is a PV ground mount system designed for ground mount arrays up
to 100 kW. Sigma Pure uses readily available galvanized steel pipes for support
legs, which are embedded into concrete peirs or installed into earth screws and
held in place by three set screws. The steel legs support a strong, corrosion-
resistant aluminum and stainless steel superstructure. Preassembled clamps and
connection hardware help speed array assembly.
Versatile configurations
Sigma Pure can be configured for both landscape and portrait orientations. In
landscape, modules can be mounted in columns up to four high with up to 9
modules per row. In portrait, modules can be two high with up to 9 modules
per row. Either configuration can be mounted into concrete piers or earth
screws.
Cost effective
Sigma Pure is a highly cost-effective system due to its components that are
readily available off-the-shelf from your distributor, making for a robust
yet economical PV mounting structure. Cost is further reduced with the
incorporation of preassembled superstructure components, which minimizes
labor. Sigma Pure's strong, extruded aluminum superstructure helps maximize
the span between supports, decreasing the overall number of supports
required. Furthermore, Sigma Pure is compatible with earth screws, optimizing
Sigma Pure for good terrain adaptability and reducing the need for expensive
site grading and modification.
Pre-engineered
All of Sigma Pure's configurations are PE stamped in solar friendly states to
facilitate permitting and approval, providing peace of mind in Sigma Pure's
durability and longevity.
Sigma Pure Advantages
Sigma Pure implements a strategic combination of engineering innovation, fast
procurement, and easy installation that is both economical and long-lasting,
resulting to a ground mount system ideal for a wide range of system sizes and
configurations.
SigmaPure InformationSheet
Sigma Pure

2. For further information: www.mounting-systems.us
Subject to change without notice.
2016 © Mounting Systems, Inc.
1 Please see the Mounting Systems, Inc. warranty document for details.
SigmaPure InformationSheet
SigmaPureUS1606
Application Ground mount
PV modules Framed, frameless
Module layout 2-high portrait or 4-high landscape;
9 panel maximum table length
Module orientation Portrait or landscape
Module inclination 20°, 25°, 30° and 35°
Ground clearance 31.5 in. (80 cm) (nominal)
Pile spacing Dependent on module type, foundation option, and
site environmental conditions (wind / snow loading)
Standards International Building Code IBC 2009/2012/2015
California Building Code CBC 2010
ASCE/SEI 7-10
Aluminum Design Manual 2010
ANSI/AISC 360-05
ACI 318-08
Superstructure Extruded aluminum (EN AW 6063 T66)
Connection parts Stainless steel 300 Series (V2A)
Foundation 2-in. Sch 40 galvanized steel pipe with either
concrete piers, ballast, or earth screws
Color Mill finish only
Warranty 10 years 1
Configuration Module Foundation Clamping
Sigma Pure
2 portrait
Clickstone
Sigma Pure
3 landscape
Clickstone
Galvanizedsteelpipewith
concretepiersorearthscrews
Framedandframelessmodules
3
1
2
Install module bearing rail clamps
1 Module bearing rail
2 Rafter
3 Module bearing clamps
Clickstone module end clamps
Rafter and pipe connection