38
39
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
4
) and
permanganate (MnO
4
-
).
• 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,
18
th
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 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
