USING THE ELECTRODE
Electrode Preparation
Orion 94-09
1. Remove the rubber cap covering the electrode tip.
Orion 90-01
1. Remove the rubber cap covering the electrode tip.
2. Fill reference electrode with Orion No. 900001.
Orion 96-09
1. Remove the rubber cap covering the electrode tip.
2. Fill outer chamber with Orion No. 900061.
NOTE:
The Optimum Result
TM
A filling solution
(Orion No. 900061) supplied with Orion 96-09 electrode
is designed to minimize junction potentials and fluoride
ion contamination of the sample, and can be used for all
fluoride measurements. Use of any other filling solutions
will void the warranty on the electrode.
Filling Instructions
The electrode is shipped without filling solution in the reference
chamber. To fill from the flip-spout bottle:
1. Lift the spout to a vertical position.
2. Insert the spout into the filling hole in the outer sleeve and
add a small amount of filling solution to the chamber. Tip
the electrode to moisten the 0-ring at the top and return
electrode to a vertical position.
3. Holding the electrode by the barrel with one hand, use the
thumb to push down on the electrode cap, allowing a few
drops of filling solution to drain to wet the inner cone.
4. Release sleeve. If sleeve does not return to its original
position immediately, check to see if the 0-ring is moist
enough and repeat steps 2-4 until the sleeve has returned to
original position. Add filling solution up to the filling hole.
NOTE:
Add filling solution each day before using
electrode. The filling solution level should be at least one
inch above the level of sample in the beaker to ensure a
proper flow rate. If the filling solution is less than one
inch above the sample solution level, electrode potentials
may be erratic.
Do not seal the filling hole when
making measurements.
5
Summary of Contents for 96-09
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