User Guide

ManualsBrandsHanna Instruments ManualsMeasuring instrumentsHI 83746

Range 0.00-50.00 g/L

Resolution 0.25 g/L

Precision ±0.50 @ 10.00 g/L

Light Source Tungsten lamp with narrow band interference filter @ 610 nm

Light Detector Silicon Photocell

Method Fehling Method

Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing

Battery Type 4 x 1,5 volt AA batteries / 12 to 20 VDC through voltage adapter

Dimensions 224 x 87 x 77 mm (8.7 x 3.3 x 3.1")

Weight 512 g (17,6 oz.)

REQUIRED REAGENTS

Code Description Quantity/test

HI 83746A-0 Fehling solution A 1 vial

HI 83746B-0 Fehling solution B 1 mL

OPTIONAL REAGENTS

Code Description Quantity/test

HI 93703-59 Charcoal 2 spoons

SPECIFICATIONS

Precision is how closely repeated measurements agree

with each other. Precision is usually expressed as

standard deviation (SD).

Accuracy is defined as the

nearness of a test result to the true value.

Although good precision suggests good accuracy,

precise results can be inaccurate. The figure explains

these definitions.

In a laboratory using a standard solution of 10.00 g/L of

Reducing Sugars and a representative lot of reagent,

an operator obtained with a single instrument a

standard deviation of ±0.50 g/L

PRECISION AND ACCURACY

If the expected RS concentration is less than 5.00 g/L please refer to the instructions below:

• 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 731341 1000 µL automatic pipette to add

exactly 1 mL (=1000 µL) of wine sample to one vial

(Sample) and 1 mL 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.

• Proceed with instructions on page 14 and 15.

• The concentration displayed on the LCD must then be

divided

by 4by 4

by 4 to obtain the correct value in g/L (ppt) of

Reducing Sugar.

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