Milwaukee MA871 Bedienungsanleitung

Milwoukee

ÏHANKYOU FORCHOOSING

Ssles ond Technicol Service Corrlocls:

Milwsukee s.r.l.

Corso Leoncrrdo do Vinci 48/50

2l0l 3 Gollorore (VA) ITALY

Tel: +39 0331 2ó 80 09

Fox: r-39 0331 2ó 80 33

e-moil: soles@milwoukee. I 9l .ii

Milwoukee lnsfrumenls, lnc.

2950 Business Port Drive Rocþ Mount

NC 27804 USA

Tel: +1 252 443 363A

Fox: *l 252 443 1937

e-moil: [email protected]

\,t wtìr.milwdukeeln¡l.com

Milwoukee Refracfometer

I Il,lA871

Refrocforneter far Sucrose

Meosuremenfs

"#'e-

ffi

\cÐ

Milwc:

www.milwoukeeinst.com

lnstruclion Monuol M4871

Refrqctometer for Sucrose Meosuremenls www. mi lwqukeei nst.corn

Futtc7rotrrAt DãscntPrtoil

DISPLAY

A. BATTERY STATUS ICON (BLINKS WHÊN tOW BATTERY

coNÞrTroN ÞETEÇTEÞ)

B. MEASUREMENT IN PROGRESS TAG

C. SETUP: FACTORY CALIBRATION ïAG

D. CAL: CALIBRAïON fAG

E. PRTMARY DTSPLAY (DISPLAYS MËASURËMËNT AND

ERROR MESSAGES)

N AUTOMATIC TEMPERATURE COMPENSATION

{BUNKS WHEN TÊMPERATURE EXCEEÞS r 0-40 "C / 50-

r 04 't RANGE)

G. TEMPERATURË UNITS

H, SECONDARY ÞIsPI,AY {DISPLAYS TËMPERATURF

MEASUREMENTS; WHEN BLINKING, TEMPERATURE HAS

EXCEEDEÞ OPERATION RANGË: 0-80 'C / 32-¡ 76 "F)

FUNCTIONAL DESCRIPTION

GENERAL DESCRIPTION .......

SPECtFtCAT|ONS .................

PRINCIPLE OF OPERATION ...

MEASUREMENT GUIDELINES,

CALIBRATION PROCEDURE ..

MEASUREMENT PROCEDURE

MAKING A STANDARD % BRIX SOLUTION

CHANGING TEMPERATURE UNIT ...........,

ERROR MESSAGES ..............

BATTERY RËPTACEMENT ..........................

WARRANTY

1Ã

: FFfrE

EF8.Ëç

lnstrucfion Monuol MA87t

Refroctometer for Sucrose Meosuremenls www. m i lwoukeei nsf.conn

FRONT PANEL

A. LIQU|D CRYSTAL Þ|SPLAY {LCD)

B. READ KEY {USER MEA,SUREMENTJ

c. zËRo KFY {USËR CALTBRATTON)

D. ON/OFF

E. PRIMARY DISPLAY

Ë SECONDARY DISPLAY

G. STAINLESS STEEL SAMPLE WELL AND PRISM

BOTTOM

OPEN

H. BATTERY COVFR

I, BATTERY COMPARTMENT

GETERAI"DESCRIPilOil

SIGMflEANEE-OLUS-E

Thonk you for choosing Milwoukee. This inslruction

monuol will provide you ihe necessory informotion

{or correcl use of the meter.

The lv1A87l is on optìccl inslrument fhot employs 1l-re

meosuremenl o{ refraclive indexto determine ihe % Brix

of sugorin oqueous solutions. The method is both sirnple

ond quick. Somples ore nreosured ofier o simple user

colibrotion with deionized or distilled wofer. Withiri

seconds ihe instrumeni meosures ihe re{rocfive index of

ihe somple cnd converls itto % Brix concenlrolion units.

The MA87'l digitol refroctometer eliminoles the

uncertoinity ossocioled with mechonicol re{rqctonreters

ond is eosily portoble {or meosurements in the field.

The meosurenrent technique ond tempercrture

compensolion employ methodology recommended in

the ICUMSA Methods Book {internotionolly recognized

body for Sugor Anolysis).

Temperoture (in 'C or'F) is disployed simulToneously

with the meosurement on the lorge duol level disploy

olong wilh icons {or Low Porverond other help{u I messoge

codes.

Key feetures include:

. Duol-level LCD

. AutomoiicTemperolure Compensolion (ATC)

. Eosy sefup ond storoge

' Botlery operotion with Low Power indicsfor (BEPS)

. Aulomaiicolly lurrrs off ofter 3 minules of non-use.

Remove the'instrument from the pocking

materiqls ond exqmine corefully lo ensure no

domoge hçls occun'ed during shipping. lf ony

domoge hos occurred, notify your Deoler.

Eoch M4871 instrumenl is supplied with:

' 9 V bottery

. lnslruclion msnual

Nole: Sove oll pocking moteriol until you ore

sure lhol lhe instrumenl funclions

correclly. A defective instrumenl musl be

relurned in its originol pocking.

lnstruction Mqnuol MA87t

Refroctometer for Suerose Meosu remenf swww. mi lwo ukeeinst.com

SPECIF'CAT'ONIs

Ronge 0 To 85% Brix

0 to B0 "C (32 to 175 "rl

Resolulion 0.I % Brix

0.r "c (0.r 'F)

Accurocy t 0.2% Brix

t 0.3'C (t 0.5 "F)

Ligh Source Yellow LED

MeosuremenÍ Time Approximotely I .5 seconds

Minimum Somple

Volume 'l00 ¡lL (cover prism totolly)

Somple Cell SS ring ond {lint gloss prism

Aulomolic between

l0 ond 40 'C (50 io ì 04 'F)

PN'ilCIPT.E OF OPENATIOil

The Brixdeierminqtiorr is mode by meosuring tlre refrocfive

index of o solution. Refrcrciive lndex is on opticol

chorocteristic of o subslonce ond lhe numberof dissolved

porticles in it. Re{rociive lndex is defined os the rolÌo of

lhe speed of light in empty spoce to lhe speed o{ lighi in

ihe subsionce. A result of this properly is thot light r,vill

"bend", or chonge direclion, wher"l it trovels through cr

substonce o{ dífferent re{rociive index. This is colled

re{roclion.

When possing from o material with o higher to lower

re{roctive index, there is o criiicol ongle ol which on

.incoming besm of light con no longer re{roct, bul will

ìrrsteqd be reflected off the inieríoce. The criiicol ongle

con be used to eosily colculoie the refroctive index

occording lo the equofion:

sin (q.*oo) : nr/ n,

Where n, is the re{rsciive index o{ the lower-density

medium; n, is The re{roclive index of the higher-density

medium.

Temperolure

Compensolion

Cose Moteriol ABS

Enclosure Roling lP ó5

Bottery Type/Life I x 9 voli AA botteries /

5000 reodings

Auto-Shut off After 3 minutes of non-use

Dimensions 19.2 x 1A.2 x 6.7 cm

(7.5x4x2.6"1

Weight 420 s (14.8 oz.)

\s'l ''1n... ,..,.1,*,,.

,,f,'rffi,W W tM

Refraction CriticalAngle TotallnternalReflection

I ( 0cdr¡æt , 0r = 0orro¡r 0, > O*,nr,

0r = ahgle of lncidehca n{, n2 ' refraciive index

0r = angle of refraclion

ln the Md871 , ligh{rom on LED posseslhrough o prisrrr

in conlocf wilh the somple. An imoge sensor delermines

the criiicol onglå oi wh¡ch the light is no longer re{rocled

through the somple. The MA87 1 outomoficqlly opplies

temperoture compensotion io the meosurement ond

converts ihe refrocfive index of Ìhe somple to sucrose

conce¡rtrotion in units o{ percenf (by weighl) Brix.

lnstruction Mqnuol MA87t

Refroctometer for Sucrose Meosu remenls www. mi lwoukeei nst.com

Prlsm

L¡near lmage Sensor

¡IIEASURã,UETVT GUIOEIIilE5

Hondle inslrument csrefully. Do not drop.

Do noi immerse inslrument under woter.

Do nol sproywoierio ony port of insTrumenlexcept

ihe "somple well" locoted over the prism.

The insirument is intended to meosure sugor

solutions. Do not expose instrumenl or prism lo

solvents thot will domoge ii. This includes mosT

orgonicsolvents ond extremely holorcold solutions.

Porticuloie moiterin o somple rnoyscrolch fhe prism.

Absorb somple wiih o soft lissue ond rinse somple

well wilh deionized or distilled woter between

somples.

Use plostic pipelles to tronsfer oll solutions. Do not

use meiollic tools such os needles, spoons or

tweezers os fhese will scrolch the prism.

CALIB RAÍ' OñT PROCEDURE

Colibrqlion should be perfonned dcily, be{ore mea-

suremenfs ore mode, when lhe bollery hos been

reploced, or belween o long series of mecsuremenls.

l. Press ihe ON/OFF key, then releose. Two inslru-

nreni test screens will be disployed briefly; on "oil

segment" screen {ollowed by fhe percentoge of

remoining botlery life. Wheri LCD displcys doshes,

lhe inslrument is reody.

: ffiHtrË

ËFF,ST

Sample V/all Sample

Led

Lens

tnn

IUtJ

hflhÈ ¿5.fi"

2. Using ploslic pipettes, lill +he somple well wiih

d¡st¡lled or deionized woler.

Note: lf the ZËRO sompie is subiect to infense lighï

such os sunlight or onoiher strong source, cover ihe

somple well wiïh your hond or other shode during fhe

colibroiion.

DlslrLtEo

3. Press the ZERO key. l{ no error messoges oppeor,

your unil is colibroied.

(For o descriplion of ËRROR MTSSAGES see

poge l3).

Nole: The 0.0 screen wíll remoin until o somple is

meosured or the power is turned off.

I_^--a

45.8"

nft

Lt.u

ð50'

OFF

ZERO

Instruction Monuol MA87l

Refroctomeler for Sucrose /v{eosuremenls www. milwoukeeinsl.con r

4. Genily obsorb the ZERO woter sfondord with o soft

tissue. Use core not lo scroich the prism surfoce.

Wipe off ihe surfoce compleiely. The insirument is

reody for somple meosurement.

Note: l{ instrument is turned o{i ihe colibrqiion will

nol be losl

5. Using plosiic pipetfes, rinse prism ond sample well

with distilled or deionized woter. Wipe dry. Ihe

instrumenl is reody for lhe next somple.

l'r

TE ASURE TüETVT PROCEDURE

Verify the instrumerrt hos been coli-

broted be{ore loking meosuremenls.

ì. Wipe ofi prism surfoce locoted

oi the boftom o{ +he somple well,

2. Using plostic pipettes, drip somple

onio the prisnr surfoce. Fill the

well completely.

,=rÊ

Nole: lf the temperolure o{ fie somple differs signi{icontly

from the iemperoture of ihe inslrument, woit

opproximotely I minute to ollow lhermol

equilibrotion.

3. Press the READ key. Meosuremenl is disployed in

units o{ % BRIX.

DISTILLED

,l,lAKlilC A SfAilDARD % ¡RlX SOLUrrOfi¡

To moke o Brix Solution, follow the procedure below,

" Ploce confoìner (such os o gfcss viol or dropper.

botfle thot hos o cover) on on onol¡ìcol bqlonce.

' Tqre the bolonce.

. To moke on X BRIX solufion weigh outX groms of high

purity Sucrose (CAS #: 57-50-1) directly into the

contoiner.

. Add dlst¡lled c¡r deion ized woter to lhe conioiner so

the fotol weight of the solution is 'l 00g.

' Nole: Solutions obove é0% Brix need to be

vigorously siirred or shoken ond heoted in

o woter both to roughly 4û "C {'l04 "F).

Remove solution frorrr both when sucrose

hos dissolüed. Cool completely belore use.

The totol quonTity con be scoled

proporlionolly {or smoller conloiners bui

occurocy moy be socri{iced.

Exomple with 25% Brix

o/o Brix g Sucnose

25 25.00

¡5.8'

\rJ

1-\

\_/

t¡5

¡5[l'

g Woter

75.000

g Total

r 00.000

Note: The ATC tog blinks ond ouiomotic Temperoture

comperrsolion is disobled if fhe tenrperoiure

exceeds lhe I 0-40 'C I 50-l 04 'F ronge.

4. Remove somple {rom ïhe somple well by obsorbing

with o soft iissue.

mtt

READ

lnstruclion Monuol M4871

Refroctometer for Sucrose Meosurements

ÍE¡}IPERAÍUNEUilIf

To chonge the lemperoiure meosuremenf unit from

Celsiuslo Fohrenheìl {orviceverso), ibllowthis procedure.

l. Press ond hold fie ON/OFF key conlinuously for

oproximotely l5 seconds. The LCD will displcy fhe

"oll segmeni" screen folloy¿ed by o screen wiih lhe

model number on the primory dispioy ond Ihe version

number on ihe secondory dìsplcy. Continue pressing

the ONIOFF key

I 5 seconds

81 '

tn a'c

t.u f

2. While coniinuing lo hold lhe ON/OFF key, press

the ZERO key. The ternperoture unit will chonge

from "C io oF or vice .¡erso.

oC or .F

www. m i lwo u keei nsl.corn

ENNORfiESSAGã'

OFF

Decription

General foilure. Cycle

pcwer fo ¡¡struñeni- lf

¡nslrufieni st¡il hos erroL

conlccl Milwâukee.

Somple is reodinc lower

thon the C % sroncjord useJ

for ñeier coiibroiion-

Somple exceeds moximum

hecsureF¡ehl rcnge,

V/rong colibrotion used io

zeio ¡nsÌruñÊni. Use

deionjzed orCi$ìlled woter

P¡ess Zero,

V/rong culibrotiorr u*ci to

zero insirrmenl- Use

deion¡zei or iisiiiled woie¿

Þess Zero.

Tempe¡olure *ceeds ATC

low lihit il 0 "Cl during

colìbroiion.

Temperolure exceeds ATC

h¡gh limir {40 "Ci dDring

colibraiion.

Prism sur{oce insùf{icienlly

Tôo ñuch e*ernol lighi for

meosuremeni. Cov€r

soaple well with hond.

LED light is not cjeredecj.

Cor¡tsd Milwoukee.

<5,o¿ of boltery life is

remoiniñ9.

Ïemperoture meosuremeni

our of sonrpling ronge {C'.0

to 80.0eC).

Ou*si.je leñperof u¡e

.ompensot¡on ronge (l 0 lo

4O.C).

Foctory colibrotion lod

Contoa Milwoukee.

Err

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,n :

LIJ I

¿\iJ'r

lJl i

r ¡r i

¡tc"

a---ì

lHr ,

i i5r'tj

i¿6 I

;åiíii

r' r f

E LU

9S'

LHI

H'r

¿çll'

Err

¡58'

nlþ

¿5C'

t¿5"

Enor Code

Ërr

LO Top Cisploy

Hl Top dtsplcy

LO Top ciisploy

Ccl ægmeni ON

H¡ Top dìsploy

Csl segmeni ON

t l-O Tcp disploy

Col segment ON

f Ht Top disploy

Col segnrent ON

,{i¡

ÉF

nLt

Bctrery sesment blink'ds

Tenperoilre volues ore

blinL;ng

0.0'or 8O.O"C

ATC segmeni blinking

SETUP seqmenl

blinkìns

: sËr

Ðã&fr4

OFF ZERO

lnstruction Monuol MA87t

Refrocfomefer for Sucrose Meosuremenls

To reploce the instrument's botlery, {ollow fhese sleps:

' Turn lhe inslrurnenf OFF by pressing the Olt{/OFF

k"y.

' Turn instrument upside down ond remove the boTiery

cover by turning it counterclockwise.

. Exiroci the boftery {rom ils locction.

. Reploce with lresh 9V botleny moking certoin lo

observe polority.

. lnsert the bock botiery cover ond {osien il by tr.rming

clockwise io engoge.

www. milwcukeeinst. com

For your So{ety don't use or store the instrument in

hozordous envìronmenls. To ovoid domoges or burns,

do nol perform ony meüsuremenl in microwove ovens.

OFF

WARRANTY

This instrument is worronted ogoinst defecls in moieriol:

qnd monufocturing for o period o{ 2 yeors from the

dofe of purchose. Electrodes ore worronted {or é

monihs.

li during this period lhe repoir or replocemenl of

porls is required, where the domoge is not due lc

negligence or erroneous operolion by fhe user,

pleose reiurn the inlrumeni, electrode ond probe tc

either disiribuior or our office ond lhe repoir will br

effecled free of chorge.

Domoge due to occidents, misuse, lompering or locl

of prescribed moinlenonce is nof covered by fhe wononty

Mifwqukee/Mcrlini insËrumenfs reserves the

right to make irnpnovements ¡n design, con-

struct¡on ûnd oppeoronce of ifs products

wíthout odr¡qnce nolice.

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