Thermo Scientific Mercury Freedom 80i Manual page 44

Calibration
Manual System Calibration
3-2 Mercury System Manual
12. From the Main Menu, select Instrument Controls > Auto/Manual
Mode > Hg(t).
13. Repeat Steps 4 through 11 for Hg(t) mode.
14. From the Main Menu, select Instrument Controls > Auto/Manual
Mode > Hg(0)/Hg(t).
15. Set Average Time to 120 seconds.
16. From the Main Menu, select Instrument Controls > Gas Mode >
System Zero.
17. Wait approximately 15 minutes for the instrument to stabilize.
18. From the Main Menu, select Calibration > Cal Hg(0) Background,
and press
.
19. From the Main Menu, select Calibration > Cal Hg(t) Background,
and press
.
20. From the Main Menu, select Calibration > Auto Zero/Span Check >
Sys Hg Span Conc, and choose the target concentration (Span 1
through 6).
Note The Sys Hg Span Conc screen is available only while in Hg(0) or
Hg(t) Manual mode.
▲
21. From the Main Menu, select Instrument Controls > Gas Mode >
System Span.
22. Wait approximately 15 minutes for the instrument to stabilize.
23. From the Main Menu, select Calibration > Calibrate Hg(0)
Coefficient, and enter the 81i output concentration pressure.
24. Repeat for Hg(t) Coefficient.
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