Hanna Instruments HI 83742 - Manual (Page 14)

14
COLOR DENSITY, WHITE WINE
SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS
Range
0.000 to 1.000
Resolution 0.001
Precision ±0.010 @ 0.200
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Direct reading.
REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS REQUIRED REAGENTS
No reagents required. For other accessories see page 26.
MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT
• Press “RANGE” to select the parameter code “P1” for
color density - white wine (see page 13).
• Fill an empty cuvet with deionized water and replace
the cap. This is the zero zero zero zero zero.
• Insert the zero cuvet into the holder and close the lid.
• Press ZERO and “----” will blink on the display.
SAMPLE PREPARATION SAMPLE PREPARATION SAMPLE PREPARATION SAMPLE PREPARATION SAMPLE PREPARATION
• Use the plastic pipette to fill a cuvet with white wine.
and replace the cap. This is the sample.
#1
(Zero)
#2
(Sample)
15
• After a few seconds the display will show “-0.0-”.
The meter is now zeroed and ready for measurement.
• Remove the cuvet from the instrument.
• Insert the sample (cuvet #2) into the holder and
close the lid.
#2
(Sample)
• Press READ/TIMER and “----” will blink during
measurement.
• The instrument directly displays the color density on
the Liquid Crystal Display.
INTERFERENCES
Suspended matter should be removed by centrifugation or prior filtration. Use an adeguate filter
material that does not adsorb color.