Milwaukee MA871 User manual

Milwoukee
ÏHANKYOU FORCHOOSING
Ssles ond Technicol Service Corrlocls:
Milwsukee s.r.l.
Corso Leoncrrdo do Vinci 48/50
2l0l 3 Gollorore (VA) ITALY
Tel: [phone]ó 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: [phone]A
Fox: *l 252 443 1937
e-moil: [email protected]
\,t wtìr.milwdukeeln¡l.com
Milwoukee Refracfometer
I Il,lA871
Refrocforneter far Sucrose
Meosuremenfs
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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
5
6
7
B
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l3
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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.
I
I

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.
mn

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
ì
ri
il
a
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.
*
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45.8"
nft
Lt.u
ð50'
ON
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
x
¡5.8'
a\
\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'
ON
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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LHI
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Err
¡58'
nlþ
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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
Fg
: sËr
Ðã&fr4
ON
OFF ZERO
H

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.
ON
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.