Installation Of The Atc Probe; Installation Of A New Reference Electrode - Thermo Scientific Orion 2111XP Manual

Section 2 | Analyzer Preparation
Figure 16: Flow Cell Cap
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22 Orion 2111XP Sodium Analyzer
5. Plug the electrode cable marked "Sensing" into the top of the electrode. Be sure to push
back the black cap to verify a secure connection between the male and female pin
connection prior to tightening.
6. Tighten the screw cap connection to the cable.
Note: Do not twist the cable while tightening the connection. Twisting may cause damage
requiring premature replacement of the cable.
7. Wait at least one hour before calibrating the analyzer.

Installation of the ATC Probe

The automatic temperature compensation (ATC) probe (Cat. No. 2100TP) is already connected
to the correct terminal for temperature upon delivery.
1. Insert the ATC probe into its port in the flow cell cap. Refer to Figure 16 for the location.

Installation of a New Reference Electrode

1. Unpack the reference electrode (Cat. No. 210056) and its instruction sheet from the
shipping box.
2. Carefully remove the protective caps from the bottom and sidearm of the reference
electrode. Save the caps for future storage of the electrode.
3. Shake out as much of the fill solution as possible through the sidearm. Drain the fill solution
through the sidearm or use a pipet or syringe.
4. While passing the 1/8 inch tubing into electrode sidearm, slide the 1/4 inch tubing over the
sidearm. The outside tubing should extend 3/8 to 1/2 inch over sidearm. Refer to
Figure 17.
5. Remove the cap and fluid seal from reference electrode fill solution bottle (Cat. No.
181073). Hold the bottle in an upright position. Check that the rubber gasket is properly
aligned, and then connect the cap end of the tubing assembly to the bottle. The 1/8 inch
tubing should extend into the bottle.
6. Hold the reservoir bottle above the electrode with the bottle cap end down. The electrode
should be horizontal with the sidearm pointing up. Gently shake the electrode to allow any
trapped air bubbles to rise into the bottle as the electrode fills with solution.
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