Hitachi AJ-CE series User manual

200009M11
High-PrecisionTuningFork
ElectronicBalance
AJ-CE/AJH-CESeries
OperationManual
A3 \Zoo os
IMPORTANT
•Toensuresafeandproperuseofthebalance,pleaseread
thismanualcarefully.
•Afterreadingthismanual,storeitina safeplacenearthe
balance,soyoucanreviewitasneeded.
V;
VlBRA
SHINKODENSHICO.,LTD.

PREFACE
ThankyouforpurchasinganAJSerieselectronicbalance.Thisisa precisioninstrumentequipped
withexactingmechanismsina compactbody.TheAJseriesprovidesenhancedfunctions,including
acountingmodeforstockcontrolofparts,a percentagemodeforcomparativemeasurementsgivenin
percentages,anda limitfunctionformeasuringconstantquantitiesbyconsecutiveweighings.
Despiteitsmanyfunctions,thebalanceiseasytooperateandfeaturesuser-friendlykeys.
Furthermore,thelargeliquid-crystaldisplayprovidesexcellentvisibility,andtheinstrument'shigh
speedandstability-intrinsictoa tuningforkdesign-helpboostoperationalefficiency.
Moreover,balanceswitha built-incalibrationweight(AJH-CESeries)canbecalibratedbysimply
turningthecalibrationknob.
Beforeusingthebalance,pleasecheckthatthefollowingitemshavebeenincludedinthe
package.
Shouldyoufindanymissingparts,pleasecontactyourlocaldealerorourmarketingdivisionatonce.
(1)Mainunitofbalance(2)Measurementpan
(oneroundorsquarepan)
AJH-E
(3)Panbase(4)Windshield
(onesmallfortheround-pan(oneforround-pan
balance;onelargeforthebalanceonly)
square-panbalance)
(5)ACadapter(one)
(6)DIN5Pplugset(7)Operationmanual(one)

ForMorePreciseMeasurements
To be able to conductmoreprecisemeasurements, itis necessary to minimize the factorsthatcontribute to
measurementerrors.There area greatvariety of sucherror-inductingfactors,which canbe linked to
machineerror and performance ofthe balance itself,as well asthe properties and condition of samplesbeing
measured, andthe measuringenvironment(e.g.,vibration,temperature/humidity).Thesefactors can readily
affect the results of measurement ona balancethat has resolutioncomparable to that oftheAJ Series.
Thismaterialincludessomeprecautionarynotesthat the usershouldbear in mind to eliminateerrorfactors
andensureaccuratemeasurementresults.
MeasuringRoom
Balance
Maintenance
Calibration
Temperature
Vibration/Shaking
Gravity
Humidity
Drafts
ElectromagneticWaves
StaticElectricity
Temperature
Absorption/Vibration/
EvaporationShaking
ofMoisture
MagnetismMagnetisi
MeasurementErrors
StaticElectricity
MeasuringBench
FactorAnalysisChart for MeasurementErrors
1. Precautions onthe MeasuringRoom
1.1 Temperature/
Humidity
1.2 Vibration/
Shaking
1.3 Drafts
1.4 Gravity
1.5 Electromagnetic
Waves
Try to maintainconstantroomtemperature as much as possible to prevent dew
condensation and unstableindications dueto fluctuations in temperature.
Lowrelativehumiditytends to inducestaticelectricity.(Relativehumidity of
about 60%is consideredideal.)
Themeasuringroomshouldpreferably be located onthe groundfloor orinthe
basement.Higherfloors are moresusceptible to heavyvibration and shaking,
whichmakesuchlocationslesssuitable for measurement. A roomfacing a
railway or roadwithheavytrafficshouldalso be avoided as much as practicable.
Avoidchoosing a locationsubject toa directdraft of airflowfrom anair-
conditioningunit or exposed to directsunlight,which may causeabrupt
fluctuations in temperature.
Alsoavoid a roomsubject toa heavyflow of people,sincefluctuations in drafts
andtemperature are likely to occur in such a location.
Thegravityacting ona samplevariesdepending onthe latitude or height ofthe
locationwheremeasurement is beingconducted. For thisreason, the same
sample may showdifferentweightindicationsfrom one place to another.
Therefore,make ita rule to calibrate the balanceeverytime itis relocated.
When the balance is locatednear an objectthatgeneratesintense
electromagneticwaves, itmaybe hinderedfromshowingaccurateweight dueto
theeffects of suchwaves.Therefore,avoidplacing the balance in such a
location.
Precautions onthe MeasuringBench
2.1Vibration/
Shaking
2.2Magnetism/
StaticElectricity
If the balance is subjected to vibrationduringmeasurement, its indicationswill
becomeunstable,thuspreventingaccuratemeasurementfrombeingconducted.
Toavoidthissituation,select a solidmeasuringbenchthat is lesssusceptible to
vibration. (A bench ina vibration-proofstructure orone made of concrete or
stoneworkwill be suitable.)Moreover, donot conductmeasurementwith a soft
cloth or paperplacedunder the balance,since the balance maybe rocked outof
itspreciselevelpositioning.
Place the measuringbench ina locationfreefromvibration as much as possible.
It isa goodidea to install the measuringbench ina corner ofthe measuringroom,
wherelessvibration is likely to occurthan inthe center ofthe room.
Avoidoperating the balance ona benchthat is susceptible tothe effects of
magnetism or staticelectricity.

3.PrecautionsontheSamples
3.1StaticElectricity
3.2Magnetism
3.3Absorption/
Evaporationof
Moisture
3.4Sample
Temperature
Generallyspeaking,objectsmadeofsyntheticresinandglasshavehighelectric
insulatingpropertiesand,therefore,areapttobeelectricallycharged.
Measuringa chargedsampleasismaycauseunstableindications,withresultant
poorreproducibilityoftheresults.Withthisinmind,besuretodischarge
chargedsamplesbeforemeasurement.
Asampleaffectedbymagnetismindicatesdifferentweightvaluesdependingon
whereitislocatedonthemeasuringpan,alongwithresultantpoor
reproducibilityoftheresults.
Whena magnetizedsamplemustbemeasured,firstdemagnetizeitorplacean
appropriatepedestalonthemeasuringpantoadequatelyseparatethe
mechanismpartofthebalancefromthemagnetizedsampleforavoidingthe
effectsofmagnetism.
Measuringa samplewithmoistureabsorbedorevaporated(volatized)
continuouslyincreasesordecreasesthevaluesindicated.Insuchcase,measure
thesampleina containerwitha smallopeningandsealedairtightwitha cap.
Adifferenceintemperaturebetweena sampleandtheinteriorofa windshield
maycauseconvectiontooccurinsidethewindshield,resultinginerroneous
measurement.Therefore,measurea veryhotorcoldsampleonlyafterallowing
timeforitstemperaturetoacclimatizetoroomtemperature.Moreover,to
preventconvectioninsidethewindshield,allowtimefortheinteriorofthe
windshieldtoacclimatizetoroomtemperature.
Thebodyheatofa personconductingmeasurementcanalsoaffectmeasurement
results.Avoidholdingthesamplewithbarehands,anduselongtweezersora
similartoolinstead.Alsorefrainfromputtingyourhandsinsidethewindshield
whilemeasurementisinprogress.
4. PrecautionsontheMainUnitoftheBalance
4.1Precautionson
Use
4.2Calibration
4.3Maintenance
•Thebalanceissuppliedwitha transparentdustcover.Thedustcovermaybe
staticallychargedimmediatelyafterremovalfromthepackingboxorunderlow
humidityconditions.Unstableindicationsbythebalancemaybedueto
staticallychargeddustcover.Insuchcase,wipethedustcoverwitha damp
clothorusea commercialantistaticagent.Otherwise,simplyoperatethe
balancewiththedustcoverremoved.
•Toachievemoreaccurateweighing,waitatleast30minutesafterswitchingon
thebalanceinordertoensurethatelectricityisfullycharged,thenusethe
balanceonlyafterloadingitseveraltimeswithanobjectofweightequaltothe
weighingcapacity.
•Periodicallycalibratethebalancetoensureaccuratemeasurementatalltimes.
•Formoreprecisecalibration,useanexternalcalibrationweightthat
approximatestheweighingcapacity.Moreover,calibratethebalanceonlyafter
allowingtimeforproperacclimationtoambienttemperaturefollowing power-up.
•Waitatleast30minutesafterswitchingonthebalanceinordertoensurethat
electricityisfullycharged,thenperformcalibrationonlyafterloadingthe
balanceseveraltimeswithanobjectofweightequaltotheweighingcapacity.
Calibrationisalsorequiredinthefollowingcases:
•Whenoperatingthebalanceforthefirsttime,
•Whennotusingthebalancefora longtime,
•Whenrelocatingthebalance,or
•Whenthereiswidefluctuationintemperature,humidityoratmospheric
pressure.
•Whenthemeasuringpanorpanbaseiscontaminatedwithpowderorliquid,
erroneousweightvaluesmayresultorindicationsmayremainunstable.
Therefore,besuretofrequentlycleanthebalance.Whencleaningthebalance,
beverycarefulnottoallowdirtorliquidtopenetrateinside(themechanism
part).
•Thewindshieldsuppliedwiththeround-pantypeofbalanceisprovidedwith
antistatictreatment.Wipingthewindshieldwitha dampclothmayweakenthe
antistaticeffect.Therefore,usea dryclothtocleanthewindshield.The
antistaticeffectmaybeweakenedovertime.Ifthisoccurs,usea commercial
antistaticagent.
200006M01

CONTENTS
1. PrecautionsontheUse2
2. NamesofComponentParts....5
2.1MainUnit5
2.2LCDIndicatorsandOperating
Keys6
3.BasicOperations.....8
3.1Installation8
3.2OperationCheck9
3.3OperationforTareSubtraction10
4.Functions12
4.1SetupandCheckingofFunctions.12
4.2DescriptionofFunctions13
4.2DescriptionofFunctions(cont.)14
4.3InterfaceSection14
5.1SwitchingUnits ofMeasurement...15
5.2SetupofUnitsofMeasurement
(Onlywhenthelockswitchisoff)15
6.CountingPieces17
6.1Sampling17
6.2IncreasingtheCountingAccuracy
(MemoryUpdateMethod)19
7.MeasuringPercentage20
8.LimitFunction22
8.1LimitFunctionSetup22
8.1LimitFunctionSetup(cont.)23
8.2SetupofLimitValuesbyActual
QuantityLoads24
8.3SettingupLimitValuesby
InputtingValues25
8.3SettingupLimitValuesby
InputtingValues(cont.)26
9. CalibratingtheBalance27
9.1CalibrationofAJ-CESeries27
9.2CalibrationofAJH-CESeries........29
9.3GLP-compliantprint.....31
10. Input/outputfunctions32
10.1TerminalNumbersandFunctions.32
10.2ConnectionbetweenBalancesand
PersonalComputers...33
10.3InterfaceSpecifications34
10.4OutputData35
10.5InputCommands, 37
11. OperatingtheBalancewiththe
Battery39
11.1Specifications39
11.2ChargingMethod, 39
11.3UserPrecautions, 39
12. Troubleshooting40
13. Specifications41
13.1BasicSpecifications41
13.2CommonSpecifications41
13.3CapacitiesandMinimumIndications
forDifferentIndicationUnits42
14. ConversionTableofUnits43

1. PrecautionsontheUse
ThisSection"PrecautionsRelatingtoUse"setsforthprecautionarynotesthattheusershould
observeinordertopreventphysicalinjurytotheuserand/ordamagetoproperty.
Thenatureofproblemsthatmayresultintheeventofimproperoperation,andconsequentialeffects
onthequalityandperformanceofthebalance,areindicatedunderthetwocategoriesof"Caution"
and"Recommended,"andexplainedusingsymbols.
CAUTION
RECOMMENDED
Thissymbolindicatesa riskofinjuryorpropertydamageifthe
balanceisusedimproperly.Besuretoobservethesenotesto
ensuresafeuseofthebalanceastheimproperusemaycause
seriousresults.
Thistermindicatesstepsthattheusershouldtaketoensurethe
qualityandreliabilityofthebalance.
MeaningsofSymbolsEachsymbolisaccompaniedbyaninstruction.
o
Mandatory
Symbol:
s
Prohibitive
Symbol:
Indicatesa "mandatory"actionthatshouldbeexecuted
without fail.
Indicatesa "prohibited"actionthatmustnotbe
executed.
O
CheckLevel
0
DonotUse
CAUTION
DoNot
Disassemble
•Donotdisassembleormodifytheunit.
•Couldcausemalfunctionorheatgeneration
•ContactourMarketingDivisionorTechnical
ServiceDivision.
0
DoNot
Deviatefrom
Ratings
•OnlyACpower(ratedvalue)shouldbeused.
•OnlyusethededicatedACadapter.
•Useofothertypesofpoweroradaptersmay
resultinheatgenerationormalfunctionofthe
balance.
0
DoNotMove
•Donotmovethebalancewhena sampleis
loaded.
•Theloadedsamplemayfalloffthe
measurementpanandcauseaninjury.

0
DoNotUse
•Donotplacethebalanceonanunstablebase
orusethebalanceina locationwhereitmay
besubjectedtoshock.
•Theloadedsamplemayfalloffthe
measurementpan.
•Accuratemeasurementmayberendered
impossible.
DoNotDrop
•DonotlaytheACadaptercableonthesurface
ofthepassage.
•Somebodymaytriponthecable,causingthe
balancetofalloff,therebycausinginjuryand/or
damagetothebalance.
DonotHandle
withWetHands
•DonottouchtheACadapterorbalancewith
wethands.
•Dangerofelectricshock
KeepDry
•Donotusethebalanceina locationwereit
maybesubjectedtoexcessmoisture.
•Electricshockorshort-circuitingcouldoccur.
•Thebalancemaybecorroded,withresultant
malfunction.
DoNotLeave
Afloat
•Donotusethebalancewithitsadjusters
lifted.
•Thebalancewillbecomeunstable,
preventingaccuratemeasurement.
,-V,.•\!
AvoidDust
•Donotusethebalanceina locationwhereit
maybesubjectedtoexcessdust.
•Riskofexplosionorfire
•Short-circuitorlackofcontinuitymayoccur,
leadingtoa malfunctionofthebalance.
RECOMMENDED
o
Calibrate
Balance
•Calibratethebalanceafterinstallationor
relocation.
•Measurementvaluesmaycontainerrors,
preventingaccuratemeasurementfrombeing
conducted.

DoNotApply
Force
•Avoidapplyingexcessforceorimpacttothe
balance.
•Placethesampletobemeasuredonthe
balancecarefullytopreventbreakageor
malfunction.
0
DoNotUse
•Donotusethebalanceina locationwereit
maybesubjectedtoabruptchangesin
ambienttemperatureorhumidity.
•Accuratemeasurementmaynotbe
obtained.
•Optimumoperationsoccurwhenambient
temperaturesrangefrom10°Cto30°C,and
lessthan80%relativehumidity.
DoNot
Overload
•Donotusethebalancewhen[Q-Err]
(Overloaded)isdisplayed.
•Takedowntheloadedsampleimmediatelyto
preventbreakageormalfunction.
0
DoNotUse
•Donotusethebalanceina locationwhereitis
subjecttodirectsunlight.
•Theindicationswouldbeillegible.
•Aninternaltemperatureincreaseinthe
balancemayleadtoinaccurate
measurement.
Unplug
Adapter
•Ifthebalanceistobeunusedforanextended
periodoftime,unplugtheadapter.
•Thisconservespowerandprevents
deterioration.
0
DoNotUse
•Donotusevolatilesolventsforcleaning.
•Thebodymaybedistorted.
•Tocleantheunitofstains,usea pieceofdry
clothorclothsoakedina smallquantityof
neutraldetergent.
0
DoNotUse
•Donotusethebalanceina locationwhereit
maybesubjecttoairfromanair-conditioning
unit.
•Extremechangesintheambienttemperature
mayresultininaccuratemeasurements.
0
DoNotUse
•Donotusethebalanceona softfloor.
•Whenloadedwitha sample,thebalancemay
tipormove,preventingaccurate
measurementsfrombeingconducted.
O
CheckLevel
•Donotusethebalancewhenitistilted.
•Aninclinedbalanceislikelytoproduceerrors,
preventingaccuratemeasurementsfrom
beingconducted.Placethebalanceona
levelsurface.

2. NamesofComponentParts
2.1MainUnit
Round-pantypes(AJ-220CE,AJ-420CE,AJ-620CE,AJH-220CE,AJH-420CE,AJH-620CE)
Square-pantypes(AJ-820CE,AJ-1200CE)
Windshield
Suppliedonlywith
theround-pantypes
Thetoplidis
detachable.
Level
Forchecking
thelevelofthe
balance
Turntheadjusters
untilthebubblerests
inthecenterofthered
circle.
Liquid-crystal
display(LCD)
Seepage6.
FrontView(round-pantype)
Operationkeys
Seepage7.Measurement
pan
Adjusters
Round-pantype:Totaloftwo,oneoneither
sideoftheunit'sfront
Square-pantype:Totaloffour,oneoneither
sideatfrontandrear
RS232C
connector
ACadapter
connector
Calibrationknob
(AJH-220CE,AJH-420CE,
AJH-620CE)
Usedforspanadjustmentofthe
balance.

2.2 LCD Indicators and OperatingKeys
2.2.1SymbolsDisplayed
HI
OK
LO
-K)<- 0111 ill 11 illI•ill 11 IF
GAL pcs#
mom
1
M I.U.U.U.U.UU g»»
Display
g
->0<-
->T<-
O
*
Pcs
%
^
mom
M
CAL
o
OllilliiillnillllllF
tfcbt
•
Description
Grams
Zeropoint
Tarebeingsubtracted(effectivewhen the lockswitch isoff)
Indication of stablebalance (Ifthe light isoff,the balance is unstable.)
Balancepowered up (Lights up when the power is turned off)or datatransmitted
Countingmode
Percentagemode
Indication of judgementresult(HI/OK/LO)when the limitfunction is active.
Momme
Display ofset valuesfrommemory (Ifa value is flashing, itis beingsaved.)
Stays onand flasheswhilespanadjustment isin progress.
Auxiliaryscaleinterval(Lights up onlywhen the auxiliaryscaleinterval is
displayed.)
Bargraph
"[Ct:](ctjcarat
[ O2] (oz) ounce
[ ib] (lib) pound
[ O2"t] (ozt) troyounce
[ GII' v~t ] (dwt) pennyweight
[•(Upperright) ] grain
[ -fc-J] (tl) tael(HongKong)
[ "t»• Upperright ] (tl• Upperright)tael(Singapore.Malaysia)
[ "ti• Lowerright ] (tl• Lowerright)tael(Taiwan)
["to](to)tola
Lights up when the balance is battery-operated. The indicationchanges to
[ C3]
wnen tne
batterycapacitydecreases and charging is required. (See
"11. Operating the Balance onthe Battery" on page 39.)