Hanna Instruments C 124 User Manual

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Hanna Instruments C 124 User Manual

Instruction Manual

C 124

Portable Logging

Haze Meter

w w w . h a n n a i n s t . c o m

1

Dear Customer,

Thank you for choosing a Hanna product.

Please read this instruction manual carefully before using the meter. This manual will provide all necessary information for a correct use.

If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or contact your nearest technical office.

This instrument is in compliance with the directives.

TABLE OF CONTENTS

 

Warranty ...................................................................................

3

Preliminary Examination .............................................................

3

Principle of Operation .................................................................

4

GeneralDescription .....................................................................

4

FunctionalDescription .................................................................

5

Specifications .............................................................................

6

Operational Guide .....................................................................

7

Taking measurements .........................................................

7

Sourcesofinterference .........................................................

8

Log-on-demand ..................................................................

8

Cleaning logged data .........................................................

8

Viewing logged data ..........................................................

9

Viewing and setting date and time .....................................

9

RS232 connection ......................................................................

9

Calibration ..............................................................................

10

Calibration procedure ........................................................

10

Viewing calibration date ...................................................

11

Standard suspension ........................................................

11

Tips for accurate operation ........................................................

12

LCD error codes ........................................................................

13

Battery Replacement ................................................................

14

Accessories ...............................................................................

14

CE declaration of conformity ......................................................

15

2

WARRANTY

All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions.

This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the problem. 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 Instruments, first obtain a Returned Goods Authorization number from the Customer Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it to make sure that nodamagehasoccurredduringshipping.Ifthereisanydamage,notifyyourDealer.

C124 is supplied complete with:

Glass Cuvette & Cap (2 pcs.)

1.5V AA alkaline batteries (4 pcs.)

Instruction manual

Rugged carrying case

Note: Save all packing material until you are sure that the meter functions correctly. All defective items must be returned in its original packaging with the supplied accessories.

3

PRINCIPLE OF OPERATION

C124 has been designed to perform turbidity measurements according to the EBC (European Brewery Convention) Standard.

The instrument functions by passing a beam of infrared light through a cuvette containing the sample being measured. The light source is a High Emission Infrared LED with a wavelength peaking at 890 nm, ensuring that the interference caused by colored samples is minimum.

A sensor, positioned at 90° with respect to the direction of light, detects the amount of light scattered by the undissolved particles present in the sample.

The microprocessor converts such readings into EBC values.

GENERAL DESCRIPTION

Beerclarityisaparameterconstantlycontrolledinbrewery,andtoassureaconsistent product quality, the brewmaster needs more than visual inspection.

Several substances can cause haze in beer, but the most frequently encountered problemisduetoacross-linkingofpolyphenolandprotein.Thesematerialsprobably exist in equilibrium in beer and manifest themselves as a haze when the polyphenol polymerizes.

A range of stabilization treatments is available for avoiding haze problems, and theproducthastobecontrolledonseveralstepsduringbrewingprocess,inparticular after filtration and before the beer enters the single tanks.

C124 is a portable Haze meter, especially designed for application in brewery.

The instrument is also provided with a log-on-demand feature, which allows the user to store up to 199 samples into the internal memory.

4

FUNCTIONAL DESCRIPTION

1)RS232 connector

2)Measurement cell

3)Liquid Crystal Display

4)ON/OFF key, to switch the meter ON and OFF; CLR key, to clear log memory (with ALT)

5)GLP key, to display last calibration date and time; CAL key, to enter calibration mode (with ALT)

6)ALT key, to activate alternate functions

7)READ key, to perform measurements; DATE key, to display (toggle) current date and time (with ALT)

8)STO key, to store sample after reading; VIEW key, to view log memory (with ALT)

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