Planmeca ProX Technical Manual

6 PREVENTIVE MAINTENANCE
34 Planmeca ProX Technical manual
6. Move test leads to P1-connector pins 3 (negative mA) and 4 (positive mA).
7. Set multimeter to DC voltage mode with a measurement range of 100mV to 5V signal
levels. Take 2 seconds exposure with desired mA setting. Selected kV value has no effect,
however lowest possible kV should be used to minimise the amount of unnecessary
radiation. When the voltage reading has been stabilized, record it.
Actual tube current (in mA) = 2.5 * measured feedback voltage (in volts)
The resulting tube current should be within ±10% of the current indicated in the user
interface.

Planmeca ProX Specifications

General

Type	Intraoral X-ray
Tube current	7 mA
Imaging Technology	Digital
Focal spot	0.4 mm
X-ray generator	High-frequency
Power Requirements	100–240 V AC, 50/60 Hz
Tube voltage	60-70 kV