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118157-001 Rev C
XRV Subsystem Overview:
XRV Generator:
The XRV Generator is available in several configurations for various X-ray tube requirements. The
generators are assembled in a compact chassis allowing for a minimum amount of space required for
installation but providing for the utmost safety. Military style circular connectors for the main and
auxiliary power input offers integration flexibility and safety. Additionally, the user has the option of an
analog, com port, Ethernet or a USB connection for local or remote operation. The Ethernet connection
is extremely useful when operating the supply remotely or in the unlikely event the generator requires
evaluation by Spellman High Voltage personnel. Utilization of this feature can save the customer hours
of downtime especially when assistance is required from a long distance.
An integrated microprocessor and resistor feedback network constantly measure and adjust the output
voltage and current to provide a stable highly regulated source. Models range from 1800 watts to 6000
watts of output power. A simple to use Graphical User Interface (GUI) or selectable analog control
provides for safe operation and customer integration. The GUI software supplied with each model of the
XRV generator can be custom programmed when placing an order for specific applications. Likewise, the
analog interface allows the user to integrate unique controls and monitoring equipment. A 25 pin
subminiature “D” connector (supplied with each XRV) is standard for interlock connections and user
controls. The GUI software can also serve as a remote monitor during analog operation.
A single ended or “Unipolar” X-ray tube requires a single XRV Generator. The XRV model will depend on
the X-ray tube selected. For example, a 160kV “Unipolar” tube operating at 3 kilowatts or less would
most likely use a standard XRV model XRV-160N-3000. The output voltage of the generator would be
negative with respect to ground due to the operating specifications of the X-ray tube. Additionally, an
isolated DC supply is included to power a large or small filament connection within the X-ray tube. The
DC filament current is adjustable via the software provided or analog input selection. Specific filament
voltage and current requirements are available upon request.
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