LI-COR LI-7820, Instruction Manual

Page: 46 / 92

Section 4. Software overview
Calibration
User calibration settings are configured under
Options > Calibration
.
Zero
gives the date of the most recent zero calibration. See Instrument calibration on
page 6-1 for details on the Zero button.
N
2
O Span
presents information about the previous span setting, including the date
that the span was set (
Last
), the span value (
Weight
; the multiplier that is set when
you span the N
2
O measurement), and the N
2
O
Concentration
(ppb) entered in the
previous span. Do not change the settings unless you are certain that your actions
will improve the performance of the instrument. See
Instrument calibration on
page 6-1.
Restore Span/Zero
allows you select a previous zero and span setting.
Factory Reset
reloads the factory original zero and span calibration parameters.
4-10 LI-7820 N₂O/H₂O Gas Analyzer