3Ć79
Maintaining the System
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Sample Path
4M KCl Fill Solution
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CAUTION: Do not touch the internal electrode wire. The wire is fragile and is
easily damaged.
8. Use the hex tool to remove the new internal electrode from its container.
9. Insert the internal electrode into the compartment and screw it into place with
the hex tool, ensuring that you do not cross-thread the electrode.
10. Fill the KCl reservoir in the sensor:
a. Remove the reservoir cap with the hex tool and set it aside as shown in
Figure 3-54.
Hex Tool
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Sample Path
KCI Reservoir
Vent Hole
b. Partially fill the KCl reservoir by gently squeezing the KCl fill solution
container as shown in Figure 3-55.
!