Hanna Instruments HI 83208-2008 User Manual

Page 29

Phosphate HR

PHOSPHATE HIGH RANGE

SPECIFICATIONS

Range

0.0 to 30.0 mg/L

Resolution

0.1 mg/L

Accuracy

±1 mg/L ±4% of reading

Typical EMC Dev. ±0.1 mg/L

Light Source

Tungsten lamp with narrow band interference filter @ 525 nm

Method

Adaptation of the

Standard Methods for the Examination of Water and Wastewater,

edition, Amino Acid method. The reaction between phosphate and reagents

causes a blue tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93717A-0

Molybdate

10 drops

HI 93717B-0

Reagent B

1 packet

REAGENT SETS

HI 93717-01 Reagents for 100 tests
HI 93717-03 Reagents for 300 tests
For other accessories see page 73.

MEASUREMENT PROCEDURE

• Select the

Phosphate HR 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.

• Add 10 drops of HI 93717A-0 Molybdate reagent.

10 mL

x 10

• Reinsert the cuvette into the instrument.

• Press the READ key to start the reading. The instrument displays

the pH value.