User Manual
KS-PH-220-BASIC | Portable
pH/mV Meter
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[email protected]
www.kensingtonscientific.com.au
MEMORY RECALL
1. Press the VIEW key in measurement mode. The display should show the ID number, data and time of the stored
data.
2. Press the key to scroll down on the stored data, showing either the pH or mV reading and temperature.
3. To exit, press MEAS key to return to measurement mode.
ELECTRODE CARE AND MAINTENANCE
1. Clean as necessary depending on the extent and condition of use. Store the electrode in electrode storage solution
after cleaning or after use.
2. When used in samples with salt deposits: Wash the electrode using tap water and then rinse using distilled water.
3. When used in samples with oil and grease: Was the bulb gently in water with detergent. Using alcohol is also
effective.
4. Clogged reference junction: Heat a diluted KCl solution to 60 to 80
°C and place the senor into the heated solution
for 10 minutes. Allow the electrode to cool in some unheated KCl solution.
5. For solutions with protein deposits: Prepare a 1% pepsin solution in 0.1M of HCL. Place the electrode in the solution
for 10 minutes. Rinse the sensor with distilled water
PREPARATION OF THE ELECTRODE STORAGE SOLUTION
1. Dissolve 22.365 grams of potassium chloride reagent (KCL) in the 100mL distilled water.
2. Pour the 50mL of KCL solution into the beaker.
3. Pour the 50mL of pH4.01 standard buffer solution into the same beaker.
4. Stir the solution until the solution has thoroughly mixed. Preparation is completed.
