LI-COR LI-7820, Instruction Manual

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Status codes
Status codes are given on the instrument display panel, software interface, and recor-
ded in the data set, where they are associated with measurements.
Display
Indicator
Software
Indicator Status
Code Definition
a
Green 0 Normal operation (measuring).
!
Yellow 1 Start frequency adjustment; Measurements may be
noisy.
!
Yellow 2 Laser temperature adjustment; Measurements may be
noisy.
!
Yellow 4 Incomplete scan resulted in missing cavity modes;
Measurements may be noisy.
!
Yellow 8 Start-up mode finished; Measurements may be noisy.
!
Yellow 16 Start-up mode initializing; Measurements may be
noisy.
!
Red 32 Spectral fit residual RMS too high; Measurements are
invalid.
!
Red 64 Unregulated pressures or temperatures; Measurements
are invalid.
!
Red 128 Inlet clogged. Triggered when the inlet is obstructed for
3 or more seconds. When triggered, the instrument
turns off the pump and enters sleep mode. Clear the
obstructions and restart the instrument.
!
Red 256 Instrument not ready; Measurements are invalid.
!
Red SVC Required. This message may be issued during
warmup. If not resolved after 60 to 90 minutes of
operation, contact LI-COR or your sales representative.
!
Red SD card error. This message may be issued briefly
during warmup or during a firmware update. It should
be dismissed quickly. If not, contact LI-COR or your
sales representative.
Table 2-2 . Status codes provide information on the status of the instrument.
Section 2. Getting started
2-9 Status codes