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

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Adjustment / Calibration Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
4 - 16 52235C1105
4) Using the pads on the screen, adjust the color wheel position UP or DOWN until the
hole in the color wheel is centered within the spot of light; then press
STORE
.
5) Repeat steps 3 and 4 for each of the other color wheel filter selections (Clear 2, Blue,
Red, Yellow).
4.8.2.5 Right / Left Home
Purpose
This procedure is designed to establish the initial X-Y positioning (home position) of the
projected spot. The
HFA II - i perimeter requires two separate home positions: one for the
right eye, one for the left eye.
Procedure
1) From the Mechanical Calibration menu, select RIGHT HOME.
2) Center the stimulus spot on the central fixation hole by using the Y (Up or Down) icons
or X (Left or Right) icons; then select
STORE.
Select
DONE
.
3) Repeat step 2 in the
LEFT HOME
mode, then return to the Mechanical Calibration
menu.
4.8.2.6 Offset
Purpose
This procedure is designed to ensure that the stimulus is in the exact center of the offset
fixation LEDs (diamond.)
1) From the Mechanical Calibration menu, select
OFFSET
. This causes the offset fixation
LEDs to illuminate, and the size III stimulus to be projected in the center.
2) Using the Y (Up or Down) or X (Left or Right) icons, position the spot at the center of
the fixation target LEDs, then select
STORE
.
4.8.2.7 Focus
Purpose
This procedure is designed to ensure a sharp focus at the center of the bowl.
Procedure
1) From the Mechanical Calibration menu, select
FOCUS.
2) Using the BACK/FORWARD icons, bring the spot into sharp focus, then select
STORE
.