Thermo Scientific Orion 2111LL User Manual page 78

Replacement Sample
Inlet Filter
Replacement of DIPA
Reagent and Diffusion
Tubing Assembly
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 . . . If .sample .flow .can .be .adjusted .with .the .pressure .regulator .to . .
50 .mL/minute .or .more, .skip .this .procedure . .
2 . . . Turn .off .sample .flow .by .turning .the .inlet .valve .to .the .right . .
3 . . . Remove .filter .hex .cap .using .1-inch .open-ended .wrench . .
4 . . . Separate .filter .cap .with .bypass .valve .assembly .from .filter .body, . .
retaining .ring .
5 . . . Remove .filter .element .and .soft .gasket . .(if .necessary) .
6 . . . Replace .gasket .and .press .new .sintered .element .into .filter .body . .
7 . . . Replace .hex .cap .and .bypass .valve .assembly .and .reposition .bypass .drain .
line .into .drain .assembly .
8 . . . Retighten .hex .cap .to .approximately .75 .pound-inch .in .torque . .
9 . . . Turn .on .sample .flow .by .1⁄ 4 .turn .of .inlet .valve .to .the .left . .
10 . .Check .for .leaks . .
Warning: Replacement .of .DIPA .reagent .is .dependent .on .operating .
conditions .and .usage . . .Replacement .may .occur .as .long .as .60 .days .from .
installation . . .Be .sure .to .monitor .the .DIPA .levels .weekly .to .assess .proper .
replacement .schedule . . .DIPA .is .hazardous . . .Use .protective .glasses .and . .
gloves . . .Refer .to .bottle .label .and .MSDS .for .precautions . . .Work .in .a . .
well-ventilated .area . .
Danger: Turn .off .the .air .pump .before .beginning .procedure; .otherwise, .the .
air .pump .will .spatter .caustic .reagent .outward .as .bottle .is .removed . . .
Refer .to .Chapter III, Use of Setup Mode for .instructions .to .turn .air .pump .
On/Off . .
1 . . . Remove .thumbnut .and .slide .reagent .bottle/adaptor .from .manifold .
assembly . .
2 . . . Unscrew .bottle .cap, .and .lift .adaptor .from .bottle . .
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Instrument Maintenance
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