II-4
Instrument Preparation
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
1 . . Unpack .the .reference .electrode .(Cat . .No . .210058) .and .its .instruction .
sheet .from .the .shipping .box . . .
2 . . Carefully .remove .protective .caps .from .bottom .and .sidearm .of .electrode . .
Save .caps .for .future .storage .
3 . . Shake .out .as .much .of .the .fill .solution .through .the .fill .hole .as .possible . .
Drain .through .the .sidearm .or .use .a .pipette .or .syringe .if .needed .
4 . . While .passing .1/8 .inch .tubing .into .electrode .sidearm, .slide .1⁄4 .inch .
tubing .over .sidearm . . .The .outside .tubing .should .extend .3/8- .1⁄2 .inches .
over .sidearm . . .Refer .to .
Figure II-13
.
5 . . Remove .cap .and .fluid .seal .from .reference .electrode .filling .solution .
bottle .(Cat . .No . .150072) . . .Hold .bottle .in .upright .position . . .Check .
that .rubber .gasket .is .properly .aligned, .then .connect .cap .end .of .tubing .
assembly .to .bottle . . .The .1/8-inch .tubing .should .extend .into .the .bottle .
6 . . Hold .reservoir .bottle .above .electrode .with .bottle .cap .end .down . .
Electrode .should .be .horizontal .with .sidearm .pointing .up . . .Gently .shake .
electrode .to .allow .any .trapped .air .bubbles .to .rise .into .bottle .as .electrode .
fills .with .solution .
7 . . Dry .off .ceramic .frit .on .base .of .the .electrode .with .tissue .paper . . .Squeeze .
bottle .for .a .few .seconds . . .A .small .amount .of .filling .solution .should .
bead .up .on .frit .surface, .indicating .good .fill .solution .flow . . .If .no .
moisture .is .visible .electrode .is .clogged .and .should .be .replaced .
Installation of New
Reference Electrode
Figure II-3
Reference Electrode
with Filling Solution
Reference Electrode
Filling Solution
Gasket
Tubing Bottle Adaptor
Small 1/8” Tubing Inside
Bottle Cap
Large 1/4” Tubing
Electrode Sidearm
ROSS
™
Coil
Ceramic Frit
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