Hanna Instruments HI 83203-2008 User Manual

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INSTRUMENT DESCRIPTION

1) Cuvette Lid
2) Liquid Crystal Display (LCD).
3) Splash proof keypad.
4) ON/OFF power switch
5) Power input connector
6) USB connector

KEYPAD DESCRIPTION

The keypad contains 8 direct keys and 3 functional keys with the following functions:

Press to perform the function displayed above it. The functions are screen related.

ESC

Press to exit the current screen.

Press to access the select method menu.

Press to move up in a menu or a help screen, to increment a set value, to access second level
functions.

Press to move down in a menu or a help screen, to decrement a set value, to access second
level functions.

Press to log the current reading.

RCL

Press to recall the log.

HELP

Press to display the help screen.

SETUP

Press to access the setup screen.

NEED TO KNOW

HI 83203 has a powerful interactive user support that assists the user during the analysis process.
Each step in the measurement process is help supported. A tutorial mode is available in the Setup Menu.

FUNCTIONAL DESCRIPTION

TIPS FOR AN ACCURATE MEASUREMENT

The instructions listed below should be carefully followed during testing to ensure most accurate results.
• Color or suspended matter in large amounts may cause interference, they should be removed by

treatment with active carbon and filtration.

• Ensure the cuvette is filled correctly: the liquid in the cuvette forms a convexity on the top; the bottom

of this convexity must be at the same level of the 10 mL mark.

COLLECTING AND MEASURING SAMPLES

• In order to measure exactly 0.5 mL of reagent with the 1 mL syringe:

(a) push the plunger completely into the syringe and insert the tip into the solution.
(b) pull the plunger up until the lower edge of the seal is exactly on the 0.0 mL mark.