V-
Instrument Maintenance
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
Warning:
Safety .glasses .and .gloves .must .be .worn .during .entire .
conditioning .procedure . . .Read .and .follow .MSDS .precautions . . .Only .
sodium .sensing .electrode .is .etched . . .Do .not .etch .reference .electrode . . .
s
1 . . . Immerse .sodium .electrode .in .bottle .of .etch .solution .for .one .minute . .
2 . . . Remove .and .rinse .with .de-ionized .water . .
3 . . . Replace .electrode .into .sensing .port .in .flow .cell .cap .
Calibration .frequency .is .user .dependent .for .the .most .accurate .and .precise .
measurements .at .low .levels . . .
• . Etching .of .the .sodium .electrode .is .required .for .effective .calibration . .
Calibration .must .be .completed .within .2-3 .hours .of .etching .electrode .
for .optimal .results .
• . Replacement .of .DIPA .reagent .requires .calibration . .Refer .to . .
Chapter IV, Calibration
.
• . Calibration .intervals .can .be .programmed .using .the .setup .mode . . .This .
will .prompt .the .user .to .recalibrate .after .a .specific .amount .of .time .has .
passed . . .Refer .to .
Chapter III, Use of Setup Mode
.
Refer .to .
Chapter II, Installation of New Reference Electrode
.
Reference .electrode .filling .solution .is .meant .to .be .a .several .month .supply . .
Therefore, .if .reservoir .is .less .than .one .quarter .full, .replace .solution . . .This .
should .be .checked .each .month .to .ensure .the .electrode .does .not .run .dry .
1 . . . Remove .spent .electrolyte .bottle .from .clip . . .Unscrew .cap .and .discard .
bottle . .
2 . . . Remove .cap .and .seal .from .new .electrolyte .fill .solution . . .Check .that .
rubber .gasket .is .properly .aligned, .then .connect .cap/tubing .assembly .to .
bottle . . .The .1/8” .tubing .should .extend .into .the .bottle . .
3 . . . Invert .electrolyte .bottle .and .snap .into .clip . .
4 . . . Use .pushpin .to .puncture .three .air .vents .in .bottom .of .bottle . .
Calibration
Monthly Maintenance
Conditioning
Sodium Electrode
Replacement of Reference
Electrode Filling Solution
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