Checking The Generator Adjustment - Siemens SIREMOBIL Iso-C Service Instructions Manual

Adjustments / Programs
•
Switch the SIREMOBIL Iso-C OFF and back ON again.

Checking the generator adjustment

•
With the system on, connect the service PC to the SIREMOBIL Iso-C.
•
Select "Test..." in the Diagnostic menu.
•
Select cassette simulation in "Function Groups" .
•
Select cassette switch ON in "Available Functions". The SIREMOBIL Iso-C is now in di-
rect exposure mode.
•
Select 81 kV with the kV+ / kV- keys.
•
Select 8 mAs with the mAs+ / mAs- keys.
•
Connect oscilloscope channel 1 to D1.X46, ground at 0V.
Set the sensitivity to 1V / Div.
•
Connect oscilloscope channel 2 to D1.X48, ground at 0 V.
Set the sensitivity to 2.5V / Div.
•
Set the time to 25 ms / Div.
•
Set the oscilloscope on storage mode.
•
Release an exposure with the hand switch and store the oscillogram with the exposure.
•
Evaluate the stored oscillograms.
The tube current must reach the tolerance range of 13 mA + 1.5 mA in the time of 3 ms
and may not leave this range for the next 6 ms.
(The tube current may not run above 14.5 mA within the first 6 ms).
•
Refer also to oscillograms in Fig. 1 / Fig. 1a and Fig. 1b.
•
Select "Cassette switch off" on the service PC in "Available Functions". Direct exposure
mode is cancelled.
•
If the unit exceeds the tolerance range, the generator adjustment must be repeated.
Siemens AG
Medical Solutions
SPR2-230.061.01
Rev. 13 12.04
Page 3 of 30 SIREMOBIL Iso-C
CS PS 24
5 - 3
5
System Manual