Hanna Instruments HI 83215-2008 Series - Manual (Page 7)

7
KEYPAD DESCRIPTION
The keypad contains 8 direct keys and 3 functional keys with the following functions:
Press to perform the function displayed above it on the LCD.
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.
Press to recall the log.
Press to display the help screen.
Press to access the setup screen.
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, and should be removed by
treatment with active carbon and filtration: refere to the SAMPLE PREPARATION Chapter (see page 19)
• 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 as 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.
1) Open Cuvette Lid
2) Indexing mark
3) Cuvette point
4) Liquid Crystal Display (LCD)
5) Splash proof keypad
6) ON/OFF power switch
7) Power input connector
8) USB connector