GE Healthcare
Senographe DS
Revision 1
Service Information and Procedures Class A 2385072-16-8EN
Job Card CAL A031 - Lift Calibration
Page no. 1691
Chapter 9
JC-CAL-A-031.fm
Lower position successfully calibrated. Move to upper position. When reached press FOV button.
You must now proceed to
Upper Limit Adjustment (Lift Potentiometer Upper Reference Voltage at
to set the upper Lift Potentiometer Upper Reference Voltage.
6-2-3
Upper Limit Adjustment (Lift Potentiometer Upper Reference Voltage at 650 mm)
Use the following steps to calibrate the upper limit of the Lift Potentiometer:
1. When the Gantry LCD instructs you to move the lift to the upper position, use the control buttons on
the Tube Head to move the lift up to its highest possible position until it automatically stops.
The movement stops automatically when the lift reaches 650 mm above the lower limit (determined
by the Lift Encoder which accurately translates lift screw turns to height travelled).
2. Once the lift reaches its highest position and automatically stops, press the FOV size button (behind
the Tube Head) to signal completion of the upper limit adjustment.
The voltage of the Lift Potentiometer is sent to the firmware of the Lift Board and stored as the Lift
Potentiometer Upper Reference Voltage.
The Gantry LCD updates with the message
"Lift node fully calibrated. Calibration can be saved or
canceled on ADS."
and the AWS screen updates instructing you to either save or cancel the calibra-
tion (see
Selection of the Lift Travel Limit (completion)
).
! Notice:
If you do not move the lift up to its highest possible position until it automatically stops, and you
press the FOV size button the Gantry LCD updates with the message
"Upper lift position out of
range. Check lift position or positioner signal! Then press FOV button."
. In this case simply contin-
ue to move the lift up to its highest possible position until it automatically stops and then press the
FOV size button.
6-2-4
Selection of the Lift Travel Limit (completion)
Use the following steps to save the calibration results and set the lift travel limit,:
1. On the
Lift Position and Upper Limit Calibration
page, click the
Save
button.
A
Lift Optical Fork Position Calibration
page on the appears prompting you to select the upper optical
fork position.
2. Click on the button corresponding to the upper optical fork position that you set in
NO CHANGE
button if the ceiling height has not changed, other-
wise click the corresponding button, as follows:
-
850 mm
if the upper optical fork is in the upper position
-
750 mm
if the upper optical fork is in the middle position
-
650 mm
if the upper optical fork is in the lower position
3. From the
Lift Calibration SAVED
page that appears, click the
OK
button.
You are returned to the
Calibration : Positioner Summary
page.
4. From the
Calibration : Positioner Summary
page, click the
Exit
button to leave the Service Desktop.
6-2-5
Check the Lift Lower and Upper Travel Limits
Move the Arm to the lower position, then to the upper position and check if the Arm stops at the right
positions.