Detailed Description
12-20
CardioMD Service Manual
1MAN0158-H11 04-2005 CSIP Level 1
WARNING
The line source housing must
not
be taken apart. Figure 12.17 only serves to
clarify the explanation.
The lever shown at the bottom left in Figure 12.17 activates the shutter. The shutter is spring-
loaded, which means that it defaults to the closed position in case of a power loss or an error
condition.
Figure 12.18 Shutter operating mechanism outside line source housing
As shown in Figure 12.18, the line source compartment contains a solenoid. When the solenoid is
activated electrically, it moves the actuator bracket, which rests on a slide bearing. The actuator
bracket, in its turn, moves the shutter indicator / manual knob out. At the same time, the locking
plate is lifted and its built-in groove activates the shutter lever on the line source housing (see
Figure 12.17), thereby causing the shutter to open. The groove in the locking plate runs the entire
length of the line source housing’s trajectory, thus ensuring that the shutter can be operated
regardless of the position of the line source housing.
The position of the shutter is sensed by an optocoupler as shown in Figure 12.19.
Solenoid operating
shutter
Groove for
activating shutter
Locking plate
for shutter
Shutter indicator
and manual lever
Shutter open
Shutter closed
Actuator bracket
Summary of Contents for CARDIOMD
Page 1: ...CARDIOMD SERVICE MANUAL 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 10: ...Introduction x CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 16: ...Safe Operating Practices 1 6 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 164: ...Detector Calibration Files 5 60 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 328: ...Installation Procedures 9 38 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 348: ...Planned Maintenance Procedures 11 6 CardioMD Service Manual 1MAN0158 H11 04 2005 CSIP Level 1 ...
Page 465: ......