Installation Options
Preva
5
Reach and Coverage
The reach of the system is measured from the tip of the Cone with the arm fully
extended and the Cone pointing back toward the pivot of the wall plate. This
measurement method accommodates the normal positioning of the Tubehead to the
patient. A patient can, therefore, be positioned without difficulty with the dental chair
located within a radius outward from the pivot point to the dimensions shown in the
diagrams.
Horizontal
Arm
Lengths
The Preva Horizontal Arm is available in four lengths. Each length gives the system a
different reach. Catalog P7015-P with a 30-A2074 Horizontal Arm has a reach of 56
inches. Catalog P7016-P with a 30-A2073 Horizontal Arm has a reach of 66 inches.
Catalog P7017-P with a 30-A2071 Horizontal Arm has a reach of 76 inches. Catalog
P7018-P with a 30-A2164 Horizontal Arm has a reach of 82 inches. The diagrams
show Catalog P7018-P with an 82-inch reach. For Catalog P7017-P with a 76 inch
reach, reduce the dimensions by 8 inches. For Catalog P7016-P with a 66 inch reach,
reduce the dimensions by 18 inches. For Catalog P7015-P, reduce the dimensions by
28 inches.
Optional
12 Inch
[30 cm]
Cone
The 82-inch reach for Catalog P7018-P assumes the use of the 8 inch [20 cm] Cone
that is supplied with the system. If the optional 12 inch [30 cm] Cone (30-A2200) is
used, the reach is reduced by 4 inches.
Figure 2
Reach and
Coverage
Diagram
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