Hanna Instruments HI 83203-2008 - Manual (Page 6)

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POWER CONNECTION AND BATTERY MANAGEMENT
The meter can be powered from an AC/DC adapter (included) or from the built-in rechargeable battery.
Note: Always turn the meter off before unplugging it to ensure no data is lost.
When the meter switches ON, it verifies if the power supply adapter is connected. The battery icon on the
LCD will indicate the battery status:
- battery is charging from external adapter
- battery fully charged (meter connected to AC/DC adapter)
- battery capacity (no external adapter) - battery Low (no external adapter)
- battery Dead (no external adapter)
OPERATIONAL GUIDE
• Turn ON the instrument via the ON/OFF power switch.
• The meter will perform an autodiagnostic test. During this test, the Hanna Instrument logo will appear on
the LCD. After 5 seconds, if the test was successful, the last selected method will appear on the display.
• In order to select the desired method press METHOD and a screen with the available methods will appear.
• Press keys to highlight the desired method. Press Select.
METHOD SELECTION
METHOD REFERENCE TABLE
HI 83203 - AQUACULTURE
Method Method Page
description
1 Ammonia MR 16
2 Ammonia LR 18
3 Free Chlorine 20
4 Total Chlorine 23
5 Copper HR 26
6 Copper LR 28
7 Nitrate 30
HEALTH & SAFETY
The chemicals contained in the reagent kits may be hazardous if improperly handled. Read the
Material Safety Data Sheet (MSDS) before performing tests.
Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions carefully.
Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with plenty of water.
If reagent contacts skin, rinse the affected area thoroughly with water. Avoid breathing released vapors.
• It is possible to take multiple readings in a row, but it is recommended to take a new zero reading for
each sample and to use the same cuvette for zeroing and measurement when possible (for most precise
results follow the measurement procedures carefully).
• Discard the sample immediately after the reading is taken, or the glass might become permanently stained.
• All the reaction times reported in this manual are at 20°C (68°F). As a general rule of thumb, they
should be doubled at 10°C (50°F) and halved at 30°C (86°F).
REAGENT BLANK CORRECTION
• Some methods require a “reagent blank correction”. The blank and the sample are prepared exactly
in the same way, only the blank is deionized water instead of sample.
A blank cuvette may be used more than once: stability and storing conditions are described for each
method in the related chapter.
INTERFERENCES
• In the method measurement section the most common interferences that may be present in an average
wastewater matrix have been reported. It may be that for a particular treatment process other
compounds do interfere with the method of analysis.
Method Method Page
description
8 Nitrite HR 32
9 Nitrite LR 34
10 Dissolved Oxygen 36
11 pH 38
12 Phosphate HR 40
13 Phosphate LR 42