User's Statement For Planmeca Prox - Planmeca ProX User Manual

18.5 User's statement for Planmeca ProX

Radiation leakage technique factors
Minimum filtration
Rated line voltage
Maximum line current
Technique factors that constitute the maximum line current condition
Generator rating and duty cycle
Maximum deviation of peak tube potential from indicated value
Maximum deviation of tube current from indicated value
Maximum deviation of exposure time from indicated value
DEFINITION OF MEASUREMENT CRITERIA
User's manual
The maximum rated peak tube potential is 70 kV and the maximum rated
continuous tube current is 0.14 mA for the maximum rated peak tube
potential.
The radiation port contains an added 1.5 mm aluminium filtration. The
measured half- value is 0.50 - 0.55 at 70 kV. The measured value
corresponds to an aluminium equivalent of 2.5 mm.
100, 110-117, 220-240 V~ ±10%. Line voltage regulation 10%.
5A at 230V, 7,4A at 115V
70 kV, 8 mA
0,8 kW, duty cycle 1:13,5. The wait period is controlled automatically by
calculating it according to the formula tw = n.13,5 x, min. 6s
± 2.0 kV
± (5% + 0.2 mA)
± (5% + 0.001 sec)
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 its highest x-
ray tube voltage
18 Technical specifications
Planmeca ProX 43