120
pHpH
pHpH
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to pH on the secondary
LCD by pressing PROGRAM W and V.
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will
show “-0.0-”. Now the meter is zeroed
and ready for measurement.
10 mL
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