• Discovery MR750w and SIGNA™ Architect T 3.0T System Service Methods
  • 5690002-2EN Revision 4
  • Object ID: 00000018WIA30422750GYZ
  • Topic ID: id_2025569 Version: 1.2
  • Date: Nov 5, 2020 1:38:08 PM

Probe/S tuning

Procedure

  1. Refer to Data Sheets for the tuning data sheet.
  2. Start the Probe/S Tune Tool:
    1. (For non-proprietary service tools) From the Common Service Desktop, select Calibration. Select Probe/S Tune from the Calibration menu, and select Click here to start this tool to start the procedure.
  3. At the Probe/S Tuning popup, press Enter to acknowledge. The calibration begins as shown below.


                         This is Probe-S Tuning Tool
    Please landmark patient table as geservice
    Press ENTER to start the tool or CTRL/C to stop the tool

    Probe-S Cal Started
    xshim= -2 yshim= 5 zshim= 2
    APS: R1=13 R2=30 TG=187 CF=127762262
    deltay_val: 0.253834
    Y Axis Calibration completed Successfully
    deltay_val: 0.523086
    X Axis Calibration completed Successfully
    deltaz_val: 0.174576
    Z Axis Calibration completed Successfully
                      

    This message appears after the completion of the three axes:


                         Probe/S Tuning) completed successfully
    Results are stored in /usr/g/caldir/probes_cal.log
    Press [Enter] to quit -->
                      

    Press CtrlC to stop the tool.

    This test takes about six minutes.

    If probe calibration fails, re-run Grafidy, then try probe calibration again.

  4. To view the complete results:
    1. Note: The Shell window can only be launched when the EA3 user is included in the authorized EA3 group. Users not in this EA3 group will not have access to launch the Shell window. If you are not logged on as the proper logon user, log out and then log back on as the correct EA3 user with the authorized permissions.
      Select C Shell.
    2. Type: more /usr/g/caldir/probes_cal.log and press Enter.
  5. The specification criteria (absolute value) are:

    • Single delta parameter, < 0.8

    • Sum of all delta parameters, < 1.0