Hanna Instruments HI 83208-2008 User Manual

Page 20

Manganese HR

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

reagent. Replace the cap and shake gently until completely dissolved.

• 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 the or to access the second level of functions.
• Press the Chem Frm functional key to convert the result in mg/L of potassium permanganate (KMnO

) and

permanganate (MnO

• Press the or to go back 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

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 93709A-0

Citrate

1 packet

HI 93709B-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 73.

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 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 shake gently until completely dissolved.

Manganese HR

10 mL

MANGANESE HIGH RANGE