100 101
pH
• Reinsert the cuvette into the instrument.
• Press the READ key to start the reading. The instrument displays
the pH value.
pH
pH
SPECIFICATIONS
Range 6.5 to 8.5 pH
Resolution 0.1 pH
Accuracy ±0.1 pH
Typical EMC ±0.1 pH
Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the Phenol Red method. The reaction with the reagent causes a yellow
to red tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93710-0 Phenol Red Indicator 5 drops
REAGENT SETS
HI 93710-01 Reagents for 100 pH tests
HI 93710-03 Reagents for 300 pH tests
For other accessories see page 128.
MEASUREMENT PROCEDURE
• Select the
pH
method using the procedure described in the
Method Selection
section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press ZERO key. The display will show “-0.0-” when the meter
is zeroed and ready for measurement.
• Remove the cuvette and add 5 drops of HI 93710-0 Phenol
Red Indicator. Replace the cap and mix the solution.
10 mL
x 5
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