Midmark Preva - Page 5

Preva Installation/Service Manual, 00-02-1577, Revision E01
2
Tubehead
The Tubehead contains the X-ray tube, high voltage circuit, and Cone. It is shipped
already assembled to the Articulating Arm.
Do not block the small hole in the plastic handle
covering the back of the tubehead. It provides an air
vent to allow the tubehead oil to expand and contract as
the unit is operated.
Articulated Arm
The Articulated Arm provides the articulation support for the Tubehead and the
reach and coverage of the Tubehead to the patient.
Horizontal Arm
The Horizontal Arm helps provide the necessary reach for the device. It pivots
around a shaft inserted in the top of the Control Unit and contains an access
cover to connect the cable from the Horizontal Arm to the Control Unit. It is
available in four lengths on wall mount units providing reaches of 56, 66, 76 and
82 inches [142, 167, 193, 208 cm].
Modular Beam
Limiting Device
[BLD]
The Cone establishes the distance from the X-ray tube to the patient’s skin. It
provides positioning assistance and collimates the X-ray beam to within a defined
circle at its end. The Preva is shipped with the standard 20 cm (8-inch) Cone
1
attached to the Tubehead. An optional 30 cm (12-inch) Cone is available
2
.
Remote
Control
The remote control switch is used to make exposures in addition to or instead of
the exposure button.
Model
Configurations
Installation and
Service
The Preva is available as either a wall-mounted or a mobile unit. See the Preva
Installation and Service Manual (PN 00-02-1577) mounting instructions.
Allow only Midmark-approved personnel to install or service Preva equipment.
Contact Midmark for assistance in locating an approved dealer. Contact
information is on the back cover.
1
Part number 30-A2195
2
Part number 30-A2200