Section 1 Product overview The Intellical PHC108 pH probe is a digital, combination electrode with a cone-shaped glass sensor that measures the pH of semi-solid samples, emulsions and slurries (e.g., soil, mud, sludge, foods). The probe is non-refillable and has a built-in temperature sensor, ceramic pin and open reference junctions.
Section 3 Safety information 3.1 Intended use The Intellical PHC108 probe is intended for use by individuals who measure the pH of semi-solid samples, emulsions and slurries in the laboratory. The Intellical probes do not treat or alter samples. 3.2 Use of hazard information...
3.3 Precautionary labels Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary statement. Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal systems.
• Use two or three buffer solutions for best results. Two buffer solutions are sufficient if the expected sample pH is between the pH of the two buffer solutions. The sequence in which the pH buffer solutions are used is not important. Use buffer solutions that are 2 or more pH units apart. •...
Section 6 Sample measurement The procedure that follows is applicable to meters that can connect to Intellical pH probes. Refer to the applicable meter documentation for meter operation and probe-specific settings. 6.1 Sample requirements N O T I C E Make sure that the sample type is compatible with the probe, or probe damage can occur.
6.3 Sample measurement procedure 1. Rinse the probe 2. Put the probe in 3. Shake the probe 4. Stir gently, then with deionized water. the sample with the from side to side to read the pH value of Dry the probe with a sensor and refresh the reference the sample.
5. Shake the probe 6. Stir gently, then from side to side to read the pH value of refresh the reference the buffer solution. junction and remove The meter accepts air bubbles. or rejects the result. Section 8 Maintenance Regular maintenance is necessary for the best accuracy, stabilization time and life of the probe. Keep the probe in the recommended storage solution between measurements.
Table 1 Cleaning solution (continued) Contamination Cleaning solution Active component Soak time Wastewater and Electrode cleaning solution, Sodium hypochlorite 5–10 minutes organic compounds extra strong Blockage of porous Electrode cleaning solution Thiourea 3 hours with stirring pin/diaphragm for porous pin/diaphragm or until the porous reference junctions reference junctions...
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to the company website for contact information. Description Quantity Item no. Hach pH electrode storage solution 500 mL 2756549 3 M KCl solution 50 mL 2756559 Larger quantities are available for some items.