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Fill the probe
Storage
Note: After cleaning is done, condition the platinum electrode in representative sample before use.
For general cleaning (including oils, greases and organics):
1. Rinse the probe with deionized water and blot dry with a lint-free cloth.
2. Put the probe sensor and platinum disc in Electrode Cleaning Solution or warm
detergent solution for up to 15 minutes.
Note: The platinum disc can be polished using a soft cloth or cotton swab with detergent
solution.
3. Rinse the probe sensor and platinum disc with deionized water. Blot dry with a lint-
free cloth.
For inorganic deposits:
1. Put the platinum disc in a solution of 0.1 M hydrochloric or nitric acid solution for up to
15 minutes.
2. Rinse the probe sensor and platinum disc with deionized water. Blot dry with a lint-
free cloth.
Add filling solution to the probe when the filling solution level is low (refer to
for use
on page 2). Refer to
1. If the filling hole is closed, remove the filling-hole cap from the filling hole (refer to
Product overview
on page 1).
2. Remove the cap from the tip of the filling solution bottle.
3. Hold the bottle so that the tip is down. Put the tip of the bottle in the filling hole.
4. Slowly squeeze the bottle and fully fill the probe.
Note: Fully fill the probe for the best performance.
5. Put the probe into storage if not used immediately (refer to
6. Keep the filling solution bottle and cap for later use.
Note: If the dispensing tip becomes clogged, remove the dispensing tip and soak the tip in
warm water. Fully dry and assemble the tip.
For the best probe performance, do not let the reference junction dry out.
Short-term and long-term storage
Note: The probe can be stored in a sample for up to 2 hours if the sample pH is not high.
1. Put the filling-hole cap in the filling hole (refer to
2. Rinse the probe with deionized water. Dry the probe with a lint-free cloth.
3. Fill the probe soaker bottle half full with Hach Electrode Storage Solution or 3 M
potassium chloride (KCl) solution.
4. Loosen the soaker bottle cap and put the soaker bottle on the probe.
5. Turn the soaker bottle cap clockwise to tighten the soaker bottle cap.
6. Make sure that the solution in the soaker bottle completely covers the reference
junction holes.
Specifications
on page 1 for the applicable filling solution.
Preparation
Storage
on page 11).
Figure 1
on page 2).
11
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