User Guide

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The microprocessor uses this potential to convert the incoming value
into the desired measurement unit and to display it on the LCD.
The measurement process is done in two phases: setting the meter to
zero and the actual measurement.
The cuvet has a very important role because it is an optical element,
and thus requires particular attention.
It is important that both the measurement and the calibration
(zeroing) cuvets are optically identical to provide the same measure-
ment conditions. Whenever possible use the same cuvet for both.
It is also necessary that the cuvet's surface is clean and not scratched,
in order to avoid measurement interference due to unwanted reflec-
tion and absorption of light.
It is recommended not to touch the cuvet walls with hands.
Furthermore, in order to maintain the same conditions during the
zeroing and the measuring phases, it is necessary to close the cuvet
to prevent any contamination.
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Single-parameter Spectrophotometers
Description Code Range Method
Aluminum HI 93712 0.00 to 1.00 mg/L Aluminon
Ammonia LR HI 93700 0.00 to 3.00 mg/L Nessler
Ammonia HR HI 93715 0.00 to 9.99 mg/L Nessler
Bromine HI 93716 0.00 to 8.00 mg/L DPD
Chlorine, Free HI 93701 0.00 to 2.50 mg/L DPD
Chlorine, Total HI 93711 0.00 to 3.50 mg/L DPD
Chlorine Dioxide HI 93738 0.00 to 2.00 mg/L Chlorophenol Red
Chromium VI, LR HI 93749 0 to 300 µg/L Diphenylcarbohydrazide
Chromium VI, HR HI 93723 0 to 1000 µg/L Diphenylcarbohydrazide
Color of Water HI 93727 0 to 500 PCU Colorimetric Platinum Cobalt
Copper, LR HI 93747 0 to 990 µg/L Bicinchoninate
Copper, HR HI 93702 0.00 to 5.00 mg/L Bicinchoninate
Cyanide HI 93714 0.000 to 0.200 mg/L Pyridine-Pyrazalone
Cyanuric Acid HI 93722 0 to 80 mg/L Turbidimetric
Fluoride HI 93729 0.00 to 2.00 mg/L SPADNS
Hardness, Ca HI 93720 0.00 to 2.70 mg/L Calmagite
Hardness, Mg HI 93719 0.00 to 2.00 mg/L Colorimetric
Hardness, Total HI 93725 0.00 to 4.70 mg/L Calmagite/colorimetric
Hydrazine HI 93704 0 to 400 µg/L p-Dimethylaminobenzaldehyde
Iodine HI 93718 0.0 to 12.5 mg/L DPD
Iron, LR HI 93746 0 to 400 µg/L TPTZ
Iron, HR HI 93721 0.00 to 5.00 mg/L Phenantroline
Manganese, LR HI 93748 0 to 300 µg/L PAN
Manganese, HR HI 93709 0.0 to 20.0 mg/L Periodate Oxidation
Molybdenum HI 93730 0.0 to 40.0 mg/L Mercaptoacetic Acid
Nickel LR HI 93740 0.000 to 1.000 mg/L Photometric
Nickel HR HI 93726 0.00 to 7.00 g/L Photometric
Nitrate HI 93728 0.0 to 30.0 mg/L Cadmium Reduction
Nitrite, LR HI 93707 0.00 to 0.35 mg/L Diazotation
Nitrite, HR HI 93708 0 to 150 mg/L Ferrous Sulfate
pH HI 93710 5.9 to 8.5 pH Phenol Red
Phosphate, LR HI 93713 0.00 to 2.50 mg/L Ascorbic Acid
Phosphate, HR HI 93717 0.0 to 30.0 mg/L Amino Acid
Phosphorus HI 93706 0.0 to 15.0 mg/L Amino Acid
Silica HI 93705 0.00 to 2.00 mg/L Heteropoly Blue
Silver HI 93737 0.000 to 0.600 mg/L Cadion 2B
Zinc HI 93731 0.00 to 3.00 mg/L Zincon
Multi-parameter Spectrophotometers
Code Parameters
HI 93710 Free & Total Cl, pH
HI 93724 CYS, pH
HI 93725 Total Hardness, pH
HI 93741 Fe LR, Total Hardness
HI 93742 Fe LR, Mn LR
HI 93743 Fe LR, pH
HI 93744 Fe LR, Total Hardness, pH
HI 93745 Free & Total Cl, Fe LR, Total Hardness, pH
C 101 Br, Free & Total Cl, CYS, Fe LR, I, pH
C 104 Free & Total Cl, CYS, pH