Appendix A
Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
A - 4
52235C1105
1) a) Mount the light meter to the chinrest (see Sec. A.2.1).
b) Connect the DMM (20V DC scale) and the power supply to the light meter.
c) Set the meter to the required position.
d) Line up the light meter with the trial lens holder raised, then lower the trial lens holder.
e) Aim the light meter to about 10 degrees above the Central Fixation hole.
2) If the light meter was off, let it warm up for 5 minutes.
3) Zero the light meter:
a) Turn off the room lights.
b) Set the light meter to position 3.
c) Check and adjust the light meter (if needed) so that the DMM reads zero when the lens is
completely blocked off. (Use the lens cap provided with the meter.)
The tolerance is ±2 mv. (To adjust the light meter, turn the small screw in the handle of
the meter.)
FIGURE A-2. Soligor Light Meter Setup
Содержание humphrey HFA II-i series
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