Zeiss Humphrey Field Analyzer 3, Instructions For Use Manual

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Troubleshooting
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HFA3 Instructions for Use 2660021166131 Rev. A 2018-11
C-6
USB Media Problems
USB device does not show up on the HFA3, or a
USB media error is indicated.
• The USB device may be incompatible with the HFA.
Data Transfer Problems
Transfer of files from HFA II/HFA II -
i
to HFA3 via
serial cable does not work.
• Check cable attachments.

• RS-232 port settings are incorrect.
Tests missing after data transfer. • Tests were ineligible to be transferred. See “Set Up a Serial Transfer from an HFA II or
HFA II-i,” on page 9-1 .
Data transfer to file server does not work. • Transfer fails due to network error.

- Re-establish the connection. Interrupted data transfer should restart. To print reports
when disconnected from the file server, print reports directly from the instrument.
Routine Cleaning
Air Intake Filter.
• Clean every 3 months or when dirty.
Cleaning other components. • See Chapter (8), "Maintenance" .
Table C-2
Problem
Possible Cause or Solution