Appendix D Calibration (Using Generator Service Tools)
Revision W HF Series X-ray Generators - Service Manual
D-34 Quantum Medical Imaging, LLC
the ground stud on top of the H.V. Transformer (see Figure D-21). Con-
nect the mAs meter in series between removed wires. (
Important: These
wires must be re-connected when finished calibration.
)
Figure D-21. MAS Meter Connection
5. Take an exposure at the setting indicated on the Small Filament Offset
Calibration Screen (i.e., 70 kVp, 75s mA, 15 msec).
If using an oscillo-
scope, set time to 125 msec
.
MAS METER
GREEN/YELLOW
WIRES (2X)
MAS METER
LEADS
HIGH VOLTAGE
TANK A17
(AY20-031 or
AY20-032)
GENERATOR CABINET
(PCB DOOR OPEN)
MAS METER CONNECTION
WIRES (2X)
H.V. TANK
(TOP VIEW)