Preva Installation/Service Manual, 00-02-1577, Revision E01
5
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 with a
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
Arm
Lengths
The Preva Horizontal Arm is available in four lengths. Each length gives the system a
different reach.
Part Number P7015-P with a 30-A2074 Horizontal Arm has a reach of 56 inches.
P/N P7016-P with a 30-A2073 Horizontal Arm has a reach of 66 inches.
P/N P7017-P with a 30-A2071 Horizontal Arm has a reach of 76 inches.
P/N P7018-P with a 30-A2164 Horizontal Arm has a reach of 82 inches.
The diagrams show P/N P7018-P with an 82-inch reach.
For P/N P7017-P with a 76 inch reach, reduce the dimensions by 8 inches.
For P/N P7016-P with a 66 inch reach, reduce the dimensions by 18 inches.
For P/N P7015-P, reduce the dimensions by 28 inches.
12 Inch
[30 cm]
Cone
The 82-inch reach for P/N 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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