Zeiss humphrey HFA II-i series, Field Service Manual

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Page 2 GEN-001B
Retrofit When in the Area (Mandatory, Implement When in the Area) - The bulletin provides
instructions on how to perform required changes to specific instrument assemblies. Arrangements
must be made by the Field Support Engineer to perform the changes on as many instruments in the
area as possible. These retrofits have a high level of urgency. They may involve reliability and
clinical issues.
Retrofit as Soon as Possible (Mandatory, Implement Immediately) - The bulletin provides
instructions on how to perform required changes to specific instrument assemblies. Arrangements
must be made by the Field Support Engineer to perform the changes on all the instruments in the
shortest time possible. Typically, the scheduling of these retrofits must be coordinated by the
Regional Service Managers because of the very high level of urgency involved.
Retrofit, as Required (Implement, as Required) - This bulletin provides instruction on how to
perform changes to specific situations. An example would be upgrading to a specific software
revision only if certain hardware is being used. The changes are usually performed the next time
the Field Support Engineer visits the office where the instrument is installed, even if there is no
failure in the instrument. This usually has a medium level of urgency (unless otherwise specified).
Typically, these retrofits may involve reliability issues.
Pages:
The total number of pages in the service bulletin.