User Guide

8
DISPLAY ELEMENTS DESCRIPTION
1) Four digit main display.
2) Battery icon: appears when the battery voltage is getting low.
3) The hourglass icon: appears during the countdown.
4) Status information.
5) Measurement unit.
6) Lamp status indicator.
7) Four digit secondary display.
1) Lid
2) Cuvet Holder
3) Liquid Crystal Display (LCD)
4) ON/OFF key, to turn the meter on and off
5) ZERO key, to zero the meter
6) TIMER key, to activate a countdown
7) READ key, to perform measurement
8) Power Socket 12V to 20V DC 2.5 Watt
FUNCTIONAL DESCRIPTION
FRONT
REAR
INSTRUMENT DESCRIPTION
13
MEASUREMENT
Note: A single blank vial may be used more than once; the blank vial is stable up to one week if stored in
a dark place at room temperature. Always use the same lot of reagents for blank and samples. For most
accurate measurement run a blank for each set of mesurement.
Notes:
i) If the expected RS concentration is above 50.00 g/L (for example for must analysis), it is recommended
to dilute the sample 4 or 5 times with water.
ii) If the expected RS concentration is below 5.00 g/L please refer to instructions on page 16.
• Remove the cap from two vials HI 83746A-0 Fehling
Solution A.
• Use the HI 731341 1000 µL automatic pipette to add
exactly 1 mL (=1000 µL) of HI 83746B-0 Fehling
Solution B to each vial.
For a correct use of the automatic pipette please
follow the related Instruction Sheet.
• Use the HI 731340 200 µL automatic pipette to
add
exactly 200 µl of wine sample to one vial
(Sample) and 200 µL of deionized water to the
other vial (Blank).
• Replace the cap and invert the vials several times to
mix. Wipe the vials thoroughly with a lint-free
cloth.
wine
sample
deionized
water
Sample
Blank
• Preheat the Hanna Reactor HI 839800 to 105 °C
(221°F). For a correct use of the reactor follow the
Reactor Instruction Manual.
Use of the optional HI 740217 safety shield is
recommended.
Do not use an oven or microwave.
1 mL
200 µL
1 mL
200 µL