Hanna Instruments HI 83740 Скачать руководство пользователя страница 5

5

Range

0.00-1.50 mg/L

Resolution

0.05 mg/L

Precision

SD ±0.05 mg/L @ 0.50 mg/L

Light Source

Tungsten lamp with narrow band interference filter @ 560 nm

Light Detector

Silicon Photocell

Method

The reaction between Copper and the reagents causes a purple tint in

the sample.

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

Auto-Shut off

After 15' of non-use in 

measurement mode

.

Dimensions

225 x 85 x 80 mm (8.7 x 3.3 x 3.1")

Weight

500 g (17,6 oz.).

REQUIRED REAGENTS

Code

Description

Quantity/test

HI 83740A-0

Copper Reagent A

5 mL

HI 83740B-0

Copper Reagent B

5 mL

HI 83740C-0

Copper Reagent C

2 x 4 spoons

HI 83740D-0

Copper Reagent D

2 x 4 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 0.50

mg/L copper and a representative lot of reagent, an

operator obtained with a single instrument a standard

deviation of 

0.05 mg/L.

PRECISION AND ACCURACY

16

• Insert the zero (cuvet #1) into the holder and

close the lit.

#1

(Zero)

#2

(Sample)

• Press ZERO and “----” will blink on the display.

• After a few seconds the display will show “-0.0-”. The

meter is now zeroed and ready for measurement

Note:

If the “L Lo” (Low Light) message appears, the sample

must be diluted. See “General tips for an accurate

measurement” (page 12).

• Remove the cuvet from the instrument.

• Insert the reacted sample (cuvet #2) into the holder

and close the lid.

• Press READ and the display will show “----” during

measurement.

• The instrument directly displays concentration in  mg/L

(ppm) of copper on the Liquid Crystal Display.
Note:

If the copper concentration exceeds 1.50 ppm or if

the sample is very turbid or dark red colored, it is

recommended to dilute the sample 10 times with

HI 83742-1

 Wine Solvent-1 and repeat the

complete measurement procedure starting from the

beginning, taking 15 mL of diluted wine sample in

vial #1 for zero-sampling and 15 mL in vial #2

for reading. In this case the displayed value needs

to be multiplied by 10 to compensate for dilution.

Содержание HI 83740

Страница 1: ...Instruction Manual HI 83740 COPPER ISM for wine analysis w w w h a n n a i n s t c o m This Instrument is in Compliance with the CE Directives MAN83740R3 04 06 w w w h a n n a i n s t c o m...

Страница 2: ...you with the necessary information for the correct use of the instrument Please read it carefully before using the meter If you need additional technical information do not hesitate to e mail us at t...

Страница 3: ...date of purchase serial number and the nature of the failure If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Inst...

Страница 4: ...L copper becomes a metabolic toxin that inhibits or delays alcoholic fermentation and concentrations exceeding 1 mg L may be sensorial detected and should be avoided Other copper related problems can...

Страница 5: ...nitions In a laboratory using a standard solution of 0 50 mg L copper and a representative lot of reagent an operatorobtainedwithasingleinstrumentastandard deviation of 0 05 mg L PRECISION AND ACCURAC...

Страница 6: ...lts Block diagram optical layout 15 Press TIMER and the instrument will show the countdown or alternatively wait for 10 minutes leaving the vials capped and undisturbed During this period the color of...

Страница 7: ...important that both the measurement and the calibration zeroing cuvets are optically identical to provide the same measurement conditions Whenever possible use the same cuvet for both It is necessary...

Страница 8: ...n 7 READ key to perform measurement 8 Power Socket 12V to 20V DC 2 5 Watt FUNCTIONAL DESCRIPTION FRONT REAR INSTRUMENT DESCRIPTION 13 Turn the instrument on by pressing ON OFF MEASUREMENT PROCEDURE 20...

Страница 9: ...uting procedure of the wine sample in case the L Lo Low Light message appears use the pipette to fill the glass vials with 5 mL of wine sample both vials then fill the vials up to the 15 mL mark with...

Страница 10: ...lowed during testing to ensure best accuracy Use the supplied plastic pipette for adding the exact amount of wine sample 15 mL or reagents A or B up to the 20 mL mark to the graduated glass vials The...

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