Hanna Instruments HI 83200C User Manual

Page 39

Manganese HR

• Add the content of one packet of HI 93709B-0 Sodium

Periodate reagent. Replace the cap and invert to mix with
gently movements for 2 minutes.

• Reinsert the cuvette into the instrument.

• Press

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

for 1 minute and 30 seconds and press

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

The instrument displays the results in

mg/L of manganese.

• Press ▲ or ▼ to access the second level functions.
• Press the

Chem Frm key to convert the result in mg/L of potassium permanganate (KMnO

) and

permanganate (MnO

• Press ▲ or ▼ to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Calcium above 700 mg/L
Chloride above 70000 mg/L
Iron above 5 mg/L
Magnesium above 100000 mg/L.

SPECIFICATIONS

Range

0.0 to 20.0 mg/L

Resolution

0.1 mg/L

Accuracy

±0.2 mg/L ±3% of reading at 25 °C

Typical EMC

±0.1 mg/L

Deviation
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, Periodate method. The reaction between manganese and reagents causes

a pink tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93709

A-0

Citrate

1 packet

HI 93709

B-0

Sodium periodate

1 packet

REAGENT SETS

HI 93709-01 Reagents for 100 tests
HI 93709-03 Reagents for 300 tests
For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

Manganese 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 the

Zero key. The display will show “-0.0-” when

the meter is zeroed and ready for measurement.

• Remove the cuvette.
• Add the content of one packet of HI 93709A-0 Citrate

reagent. Replace the cap and invert to mix with gently
movements for 2 minutes.

Manganese HR

MANGANESE HIGH RANGE

10 mL