PXS-710D Section 2
34
2.5.3 CONTINUED:
There are eight Calibration adjustments:
40kVp Preheat, kVp
50kVp Preheat, kVp
60kVp Preheat, kVp
70kVp Preheat, kVp
The displays will then change to; kVp: “04”, mAs: “0 – 255”, indicating
that the source is ready to calibrate the 40kVp Preheat setting.
1) Make an exposure and measure the actual mA waveform on the
Oscilloscope.
2) To increase or decrease the Preheat, Press kV up or down. Each
activation of the button increases or decreases the Preheat. The
number displayed in the mAs window represents a digital code for
Preheat reference and is increased or decreased by one with each
activation of the kV switches. Adjust the Preheat until the mA
waveform is square with as little overshoot or undershoot as
possible.
3) When the calibration is completed for the 40 kVp Preheat range,
depress the “RESET” to move to the kVp adjustment. The display
will show 05.
4) Place a Non-invasive kVp detector in the X-Ray Beam.
5) Make an exposure and measure the actual kVp.
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