Zeiss humphrey HFA II-i series, Руководство по обслуживанию на месте

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PM and System Checkout Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
2 - 6 52235C1105
Part II (Refer to the above System Checkout Checklist Guidelines.)
Calibration Checks —
6) Verify that the white/white light intensities are within the specified tolerances.
(Attach the required White Light Verification Data printout to this checklist.)
7) Verify that the blue/yellow light intensities are within the specified tolerances.
(Attach the required Blue Yellow Light Verification Data printout to this checklist.)
8) Using the tool stand and fake eye, ensure that the camera is aligned and centered
to the trial lens holder.
9) Using the tool stand and fake eye, verify that the gaze tracking box is within
tolerance.
10) Using the tool stand and fake eye, ensure that all five IR LEDS are functional. Start
a test and initialize gaze tracking. Observe that the three IR LEDs can be seen on
the video image of the fake eye when the trial lens holder is in the down position
(reflex and bowl IR LEDs) and in the up position (reflex and trial lens holder
LEDs).
11) Check that the touch screen response is within tolerance. Verify that patient data
can be entered easily and without error.
12) Verify that the CRT image is within specified tolerances.
13) Enter Calibration - Verification - Exerciser Tests. Run the 30/60 mixed tests for 5
minutes. No errors should be reported. While the test is running, verify that there
is no shutter noise. Look into the bowl and ensure that there is no shutter
streaking.
Operational Checks —
14) Check the CPU battery voltage (in circuit). If the voltage is below 3.0, volts replace
the battery and verify the CMOS settings are correct as per Appendix E.
15) Verify that the power table moves up and down and that the table top or slider
slides freely in and out. Ensure that the slider is securely fastened to the table top.
16) Check that the external brightness knob moves freely and has additional brightness
range.
17) Check that the patient chinrest and headrest move smoothly and completely
up/down and left/right. (Noise will be heard at the end of each motor limit.)
18) Observe the bowl for dirt or other cosmetically unacceptable spots. Clean as
needed.