Hanna Instruments HI 83216 User Manual

Page 16

SPECIFICATIONS

Range

6.5 to 8.5 pH

Resolution

0.1 pH

Accuracy

±0.1 pH at 25 °C

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 34.

MEASUREMENT PROCEDURE

• Select the

pH method using the procedure described in the Method Selection section (see page 15).

• 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 the

Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Add the content of one packet of HI 93722-0 Cyanuric Acid

Reagent. Replace the cap and shake gently for about 10
seconds (dissolution is not complete).

• Reinsert the cuvette into the instrument.

• Press

Timer and the display will show the countdown prior to the measurement or, alternatively, wait

for 45 seconds and press

Read. When the timer ends the meter will perform the reading.

• The instrument displays concentration in

mg/L of cyanuric acid.

INTERFERENCES

Turbidity preexisting in the sample causes interference during measurement.

Cyanuric Acid

10 mL