GENERAL & TECHNICAL DATA
4 Planmeca Intra X-ray unit
Technical Manual
Technique factors that constitute the maximum line current condition
70 kV, 8 mA
Generator rating and duty cycle
1.4 kW, duty cycle 1:15. The wait period is controlled automatically by calculating it
according to the formula tw = 15 x texp.
Maximum deviation of peak tube potential from indicated value
± 2.0 kV
Maximum deviation of tube current from indicated value
±10%
Maximum deviation of exposure time from indicated value
±10%
DEFINITION OF MEASUREMENT CRITERIA
Exposure time
The beginning and end points of the exposure time are defined at 70% of the peak
radiation waveform measured with a calibrated x-ray monitor.
Peak tube potential
Is defined as the high voltage mean value measured with a calibrated non-invasive kVp
meter.
Tube current
Is defined using the voltage over the feedback resistor measured with a calibrated
multimeter. The mA value is calculated by dividing the voltage by the resistance value.
The nominal x-ray voltage together with the highest x-ray tube current
obtainable from the high-voltage generator when operated at it’s highest
x-ray tube voltage
70 kV, 8 mA
The nominal x-ray tube current when operated at the highest x-ray tube
voltage
8 mA, 70 kV
The x-ray tube voltage and tube current which result in the highest electric
output power
70 kV, 8 mA
Summary of Contents for intra
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