Zeiss humphrey HFA II-i series, Field Service Manual

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Appendix J Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
J - 4 52235C1105
J.3 System Log
The principle role of the System Log is to attempt to keep track of all the ‘events’ that occur
within the instrument. For example, an event can be a system restart (switching the
instrument power to ON), recording an error code, showing the results of an attempt to
rebuild the hard disk database, or the installation of a new revision of software, just to name
a few. The date and time when each event occurred appears prior to each logged event.
Note that there will be instances when an event cannot be logged because of an instrument
malfunction. The log also contains the serial number of the instrument and the hardware
option number (see Appendix G).
The log, which is stored on the hard disk, is a circular disk file containing up to 1000 entries
(about 18, 8½ x 11" pages). The 1001st entry will write over the first entry in the log file.
The most recent event will be recorded as the last entry in the log unless there are currently
1000 entries.
The instrument operator can print out the log. The service engineer can print out and clear
(erase) the log. As part of a service call, after printing out and retaining the log, the current
log entries may be cleared as described below. Obviously, if there is a malfunction with the
hard drive, the log cannot be printed out or cleared.
When possible, the System Log should always be printed out when troubleshooting an
instrument problem. It can often provide valuable ‘clues’ when attempting to solve an
instrument malfunction. If obtainable, the log printout should always be included with any
paperwork returned as part of a field service instrument repair.
To print out the log, perform the following:
1) From the Main Menu, select System Setup .
2) Select Print System Log .
3) After a short delay, the System Log will automatically print to the selected printer. The
log cannot be displayed on the CRT.
To print out or clear the log, perform the following:
1) From the Main Menu, select System Setup .
2) Select Additional Setup.
3) Select
Diagnostics.
4) When the ten key pad appears, enter the calibration password.
5) Select System Log .
6) Select Print System Log and, if necessary, Clear System Log.