Installation Of Reagent And Diffusion Tubing - Thermo Scientific Orion 2120XP User Manual

Analyzer Preparation
Installation of Reagent
and Diffusion Tubing
Reagent Bottle Assembly
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
Warning: The reagent is hazardous. Use protective glasses and gloves. Refer
to the bottle label for precautions and work in a well-ventilated area.
Note: Turn off the air pump before beginning this procedure; otherwise,
the air pump will splatter the reagent outward as the bottle is removed.
1. Remove the thumbnut and slide the bottle adaptor from the flow cell.
2. Unscrew the cap and lift the bottle adaptor from the reagent bottle.
3. Remove both ends of the old diffusion tubing from the reagent bottle
adaptor nipples. Properly dispose of spent reagent and tubing.
4. Fit the ends of the new diffusion tubing over the bottle adaptor nipples.
5. In a hood or outdoors, carefully remove the cap from a new
reagent bottle.
6. Make sure that the large O-ring is between the reagent bottle and bottle
adaptor. Slide the diffusion tubing loops into the reagent bottle and
screw the bottle adaptor onto the new reagent bottle.
7. Ensure that the three small O-rings are in place on the flow cell.
8. Re-attach the bottle adaptor/reagent bottle assembly to the flow cell
by sliding it onto the screw and tightening the thumbnut. The bottle
adaptor can be rotated to allow correct positioning on the analyzer.
Figure II-7
Reagent Bottle Cap
Flow Cell Assembly Face
Small O-rings
Thumbnut
Reagent Bottle Adapter
Reagent Bottle Nipple
Large O-ring
Reagent
Diffusion Tube
II-10