III-3
Instrument Operation
Thermo Scientific Orion 2111LL Sodium Monitor User Guide
ROSS and the COIL tradedress are trademarks of Thermo Fisher Scientific Inc. US Patent 6,793,787
Start-up
1 . . Replace .the .diffusion .tubing .if .sample .flow .has .been .off .for .more .than .
a .few .days . . .Tubing .becomes .brittle .with .long-term .exposure .to .reagent . .
If .age .of .reagent .is .not .known, .replace .it .and .note .in .maintenance .
records . . .Re-install .bottle .on .monitor . .
2 . . Etch .sodium .electrode . . .Rinse .with .de-ionized .water, .and .carefully . .
re-install .on .monitor . . .Refer .to .
Chapter II, Conditioning &
Installation of New Sodium Electrode
. . . .
3 . . Restore .sample .flow .to .analyzer . . .If .necessary, .adjust .pressure .and .flow .
rate .through .monitor .to .normal .range .of .40 .mL/min .
4 . . Remove .protective .end .cap .from .reference .electrode . . .Reinstall .electrode .
on .monitor . . .Be .careful .not .to .disconnect .reservoir .tubing .from .
sidearm . .
5 . . Allow .monitor .to .stabilize .for .approximately .1 .hour, .and .recalibrate . .
Refer .to .
Chapter IV, Calibration
.
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