Campbell CS526 Instruction Manual - page 17
CS526 ISFET pH Probe
• Proteins, fats, and oils may be removed by scrubbing in a solution of Terg-
A-Zyme (Alconox company), a pepsin solution, or a similar product.
Afterwards, rinse thoroughly with deionized or distilled water.
• Do not use hydrofluoric acid, acetone, MEK, or similar agents to clean the
probe.
11.1.3 Revitalizing
Revitalization is performed to regenerate the diaphragm in the pH probe. For
best results, clean the probe first as described in Section 11.1.2, Cleaning
Procedure, before revitalizing.
1. Make sure the probe is warm (around 60°C).
2. Place the probe directly (without flushing it with deionized water or
cooling it down) in a saturated KCl-solution (pn 16349) at room
temperature and keep it in the solution for 20 minutes.
This cold KCl-dip will regenerate the reference system and the diaphragm.
11.2 Storage
11.2.1 Short-Term Storage (2 days or less)
1. Clean the probe first with water and possibly a mild detergent.
2. Place it in a clean container with fresh pH7 buffer solution (pn 25586) to
prevent contamination of the probe directly after cleaning.
11.2.2 Long-Term Storage (more than 2 days)
1. Clean the probe first with water and possibly a mild detergent.
2. Place one drop of demi-water in the probe’s protective cap.
3. Place the protective cap on the probe tip.
Always revitalize and recalibrate the probe before using it
again after long term storage (see Section 11.1.3,
Revitalizing, and Appendix A, Calibration).
CAUTION
11