Zeiss humphrey HFA II-i series Field Service Manual page 417

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Main Menu data will automatically be saved on the hard disk drive.)
R e c a l i b r a t i o n P r o c e d u r e s R e c a l i b r a t i o n P r o c e d u r e s
Perform the following recalibration procedures.
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Color Wheel Calibration and Test
Calibrate the color wheel (refer to section 4).
1)
Enter QA Tests. Run the 30/60 mixed tests for 5 minutes. No errors should be reported.
2)
Observe the color wheel for proper operation.
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Light Intensity Calibrations
The addition of the new color wheel and the blue-yellow hardware requires recalibration of the light
intensities. Refer to the HFA II-i Service Manual as required to complete the calibrations (section
4).
The light intensity calibrations MUST be performed in the order given below. Print both the HFA II-i
White Light and Blue-Yellow Light Verification Data printouts.
White Projector Intensity Calibration
1)
Blue Projector Intensity Calibration
2)
3) White Bowl Intensity Calibration
Yellow Bowl Intensity Calibration
4)
5) Wedge Calibration
6) Blue Correction Calibration
Intensity/Spot Ratio Verification
7)
NOTE: If the Wedge Calibration is changed after performing the Blue Correction Calibration, an error 130009 will
occur during the power-up sequence. To correct this, perform the Blue Correction Calibration procedure once again.
Again save calibration to the floppy calibration diskette.
Operational Checks Operational Checks
To ensure that the upgraded features are accessible to the operator, perform the following
operational checks.
For All Upgrades:
1) Proceed to a patient test.
2) Select Change Parameters.
3) Select Blue-Yellow ON.
4) Start a 30-2 test. Look into the bowl and ensure that a blue stimulus and yellow
background illumination can be observed.
5) When the test is complete, save to both floppy and hard drive.
6) Proceed to File Functions.
7) Select View Test.
8) Select Hard Drive.
9) Recall the 30-2 Blue-Yellow test previously run.
10) Print out the test results.
Instrument Post-Checkout Instrument Post-Checkout
FA2i-012