Hanna Instruments HI 83200C User Manual

Page 12

SPECIFICATIONS

Range

0 to 500 mg/L (as CaCO

)

Resolution

5 mg/L

Accuracy

±5 mg/L ±10 % of reading at 25 °C

Typical EMC

±5 mg/L

Deviation
Light Source

Tungsten lamp with narrow band interference filter @ 575 nm

Method

Colorimetric Method

. The reaction causes a distinctive range of colors from yellow to

green to greenish blue to develop.

REQUIRED REAGENTS

Code

Description

Quantity/test

HI 93755-0

Alkalinity Indicator Reagent

1 mL

REAGENT SETS

HI 93755-01 Reagents for 100 tests
HI 93755-03 Reagents for 300 tests
For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

Alkalinity 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.

ALKALINITY

Alkalinity

• Add the content of one packet of HI 93712C-0 Bleaching

powder to one of the two cuvettes. Replace the cap and shake
vigorously until completely dissolved. This is the blank.

• Place the blank into the holder and close the lid.

• Press

Timer and the display will show the countdown prior to

zeroing the blank. Alternatively wait for 15 minutes and then press
Zero. The display will show "-0.0-" when the meter is zeroed and
ready for measurement.

• Remove the blank and insert the other cuvette into the instrument.
• Press the

Read key and the meter will perform the reading. The instrument displays the results in

mg/L of aluminum.

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

Chem Frm key to convert the result in mg/L of Al

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

INTERFERENCES

Interference may be caused by:
Iron above 20 mg/L, Alkalinity above 1000 mg/L, Phosphate above 50 mg/L; Fluoride must be absent.

Aluminum

# 1

# 2

10 mL