LI-COR LI-7815, Instruction Manual

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Status and warning messages
During warmup and any time the instrument detects a problem, it will issue one or
more status messages, including a message that says SVC Required. This is normal
during warmup. Typically, warmup messages will be resolved within an hour of
operation. The status messages will be triggered again if there is an issue with the sys-
tem.
See Status codes on page 2-9 for details on the codes.
Code 128 triggered
Code 128 is triggered if the inlet is obstructed. This can happen if the instrument
has drawn water, dust, or debris into the inlet filter, causing a clog. In either case,
power off the instrument, clear the obstruction, replace the filters (see
Replacing the
air inlet filter on page 6-4), and power the instrument back on.
You must restart the instrument to resolve code 128.
Section 5. Troubleshooting
5-7 Status and warning messages