Canon CXDI-50G, Service Manual

Page: 112 / 179

3. Function
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[Overview]
There are two available imaging times as follow:
1) Normal imaging (0 - 1000 msec)
2) Long-term imaging (1001 - 3000 msec)
From Version 6.0, the maximum imaging time is now 3 seconds for the CXDI-50G sensor,
which can be set on the GUI.
[Precaution]
•
The preview display becomes slower when using long-term imaging.
•
The preview display may also become slower
*1
when performing normal imaging using the
part button that is set to long-term imaging (imaging time sett ings: 1001 msec to 3000 msec
).
*1
The preview display becomes slower without the X-ray monitor, that is, when using the
CXDI-50G.
(When an X-ray exposure negative cannot be detected, even if the X-ray monitor is used.)
•
Imaging preparation time: 10 seconds for normal imaging and 30 seconds for long-term
imaging. In imaging preparation time, the imaging unit changes from sleep status (sensor in
standby status) to ready status (possible to perform imaging).
(The imaging cycle time
*2
becomes longer.)
*2
Time required preparing for the next imaging after a single imaging is done. Normal
imaging: 15 sec, long-term imaging: 30 sec.
[Technical Description]
1. The maximum value for imaging condition
•
When using the CXDI-50G sensor, the maximum value of the exposure time is 3000
msec, which can be set on the screen.
•
The maximum value of the tube current is 1600 mA. - The maximum mAs value is
4800mAs due to the maximum value of the exposure time changing to 3000.
The maximum value of the tube current is 1600mA. The maximum value of the mAs
value is changed from the 3000 maximum value of the exposure time to 4800 mAs.
Exposure time Tube current mAs value
Up to CXDI V5.1
1000msec
↓
5000mA
↓
5000mAs
↓
CXDI-11- CXDI-31 sensor 1000msec 1600mA 1600mAs
CXDI-40G or later version sensor 3000msec 1600mA 4800mAs
Table 3-1
2. Imaging condition check at the time of upgrade
If any of the kV, mA, mAs, cm (except msec) values recorded in the imaging condition
table or in each body part information exceeds the limit of the sensor, when the CXDI
starts up, a warning message will be displayed (Fig. 1) and the value will be automatically
modified to be at or below the limit. (However, thinking from the range of values that can