C.5 Checking the X-ray exposure
Mobile DaRt Installation Manual
C-ix
Confirmation of X-ray exposure
1. Press the “Head” key on the adjustment mode.
2. Adjust on 2 points at 80kV,50mA、and 160mA. As the measurement display
is within the following range. At the same time, confirm the waveform of
tube voltage（CP9[TKV] which is on the XCONT board）
80kV,50mA : 45〜48mA
80kV,160mA : 148〜155mA
Fig. 5 Waveform at the CP9[TKV] (In case of 80kV,160mA)
3. If necessary, press the “Chest” key, get into the tube current each-point
adjustment mode and then check that measurement value is with error
within –15 - +5 % range of the setting value.
NOTE
Use the tube anmeter of neutral point current measureing type. The tube
anmeter of measuring of high voltage side may indicate the tube current
value with large error.
Connect the tube ammeter of neutral point current measuring type to mA+
and mA- of terminal board X2 on XCONT board. For the measurements,
remove the short-circuit plate.
1V
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