Midmark Preva - Introduction and System Overview; Product Description

Installation Options
Preva
1
Introduction
Indications
for Use
The Preva Dental X-ray is to be used as an extraoral source of X-ray in dental
radiography.
Contra-
indications
None known
Product
Description
Figure 1
Components
The Preva Dental X-ray System is a state-of-the-art, high-frequency intraoral X-ray
machine. The Preva consists of five components, as shown in Figure 1: the Control
Unit, the Tubehead, the Articulating Arm, the Horizontal Arm, the Cone, and the
Remote Control option.
Control Unit
The Control Unit provides for the input power connection and control of the
Tubehead and Operator Panel. It provides automatic line voltage compensation,
kVp control, and exposure time control. The Control Unit consists of the mounting
base and Operator Panel.
Tubehead
The Tubehead contains the X-ray tube, high voltage circuit, and Cone. It is shipped
already assembled to the Articulating Arm.
Thereisasmallholeintheplastichandlecoveringthebackofthe
Tubehead.Undernocircumstancesshouldthisholebeblockedasit
providesanairventtoallowtheTubeheadoiltoexpandand
contractastheunitisoperated.