Hanna Instruments HI 83742 - Manual (Page 13)

13
MEASUREMENT PROCEDURE
OPERATIONAL GUIDE
• Turn the instrument on by pressing ON/OFF.
PARAMETER REFERENCE TABLE
• After the desired parameter code appears on the display,
perform a measurement procedure following the
instructions reported in the related chapter.
HI 83742 - COLOR & PHENOLS
Code Parameter Page
1 Color Density, white wine 14
2 Color Density, red wine 16
3 Color Hue 18
4 Total Phenols, white wine 20
5 Total Phenols, red wine 23
• The meter will first perform an LCD self diagnostic test
by displaying a full set of figures.
• When the LCD displays “----”, it is ready. On the
secondary LCD a code indicates which parameter is
selected (“P1” or “P2” or... “P5”). The display code
that appears is the one of the last selected parameter.
• Press the RANGE key to select the desired parameter.
16
COLOR DENSITY, RED WINE
SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS
Range
0.00 to 15.00
Resolution 0.01
Precision ±0.20 @ 5.00
Light Source Tungsten lamp with narrow band interference filters @ 420 and 520 nm
Method Direct reading.
REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS
Code
Description Quantity/test
HI 83742-0 Wine Solvent-1 8 mL
HI 83742-3 Wine Solvent-3 8 mL [optional reagent]
For reagent set and other accessories see page 26.
SAMPLE PREPARATION
SAMPLE PREPARATION SAMPLE PREPARATION SAMPLE PREPARATION SAMPLE PREPARATION
• Replace the cap. This is the sample.
#2
(Sample)
• Use the 2000 µL automatic pipette to add exactly
2 mL of red wine sample to an empty cuvet. For a
correct use of the automatic pipette please follow the
related Instruction Sheet.
• Then use the 1 mL plastic pipette to fill the cuvet
with HI 83742-0 Wine Solvent-1 (or with HI 83742-3
Wine Solvent-3 - optional reagent) up to the 10 mL
mark.
Note: HI 83742-0 Wine Solvent 1 is used to measure
the true color of red wines and the results obtained
are conform to EC Directive 2676/90. The
corresponding replacement kit is HI 83742-25
(see page 26).
Note: HI 83742-3 Wine Solvent 3 is a stabilized and
ready-to-use solution at a fixed pH value (=3.2)
to compare different types of dark colored wine
samples often used for blending. The corresponding
replacement kit is HI 83742-27 (see page 26).
10 mL
( )
optional
or