Midmark Preva - Statements and Information According to Canadian Radiation Emitting Devices Regulations

Preva Dental X-ray System User Manual, 00-02-1576, Revision ZA1
41
Part II of Schedule II
Specifications Preva
2(h)(i)-(iv)
For each X-ray tube assembly:
• Nominal focal spot size: is 0.4 mm.
• Cooling curves for the anode and X-ray tube housing: refer to the Thermal
Characteristics Charts in the Specifications section on page 37.
• X-ray tube rating charts: refer to the tube rating figures within the Specifications
section of the Preva Installation and Service Manual (00-02-1577).
• Focal spot position: the following illustration shows the focal spot position and the
focal spot marks on the Preva tubehead.
2(i)
Duty cycles: 1:15
Rectification type: Constant potential, high frequency
Generator rating: 60 kV, 65 kV, 70 kV
2(j)
To operate the equipment at the maximum line current, the following are necessary:
• Nominal line voltage: AC 110 V to 230 V, 50 Hz or 60 Hz
• Maximum line current: 10 A
• Line voltage regulation: 10% of the nominal line voltage
2(k)
Loading factors that constitute the maximum line current condition for the X-ray
generator: 65 kV, 7 mA, 2 s
Statements and Information According to Canadian Radiation
Emitting Devices Regulations