Series 150Multi-Parameter Instrument - Instruction Manual

pH/ORPDO

CD/TDS

22

Table of Contents1. Specifications .................................................................................. 1

1.1 General Specifications .................................................................... 1

1.2 Electrical Specifications .................................................................. 2

2. Front Panel Description .................................................................. 5

3. pH/mV Measuring and Calibration

Procedure ........................................................................................ 7

4. Conductivity/TDS Measuring and

Calibration Procedure .................................................................. 13

5. DO (Dissolved Oxygen) Measuring

and Calibration Procedure ........................................................... 18

6. Data Load, Data Record, Data Logger ........................................ 24

7. Advanced Adjustment Procedure ................................................ 26

7.1 Check Memory Space ................................................................... 27

7.2 Clear Memory ............................................................................... 27

7.3 Date/Time Setting ......................................................................... 27

7.4 Sample Time Setting ..................................................................... 27

7.5 Auto Power Off Default Setting .................................................. 28

7.6 Temp. Unit Default Setting .......................................................... 28

7.7 pH Manual Temp. Value Setting .................................................. 28

7.8 CD Temp. Compensation Factor Setting...................................... 28

7.9 CD ( µS, mS ), TDS ( ppm ) Setting ............................................... 29

7.10 DO % Salt Compensation Value Setting ..................................... 29

7.11 DO Height (Altitude) Compensation Value Setting ................... 30

7.12 Escape from the Setting function ................................................ 30

8. Data Output .................................................................................. 31

9. RS232 PC Serial Interface .............................................................. 33

10. Battery Replacement .................................................................... 35

11. System Reset ................................................................................. 35

11. Optional Accessories ..................................................................... 36

1

1. Specifications

1.1 General Specifications

Circuit Custom microprocessor LSI

Display LCD size : 58 mm x 34 mm.

Measurement pH / Oxidation Reduction Potential (ORP)

Conductivity/Total Dissolved Solids (TDS)

Dissolved Oxygen (DO)

Temperature

Sampling Time of Data Log-ger

1 second to 8 hours 59 minutes and 59 seconds

Data Hold Freeze the display reading.

Memory Recall Maximum and Minimum value

Power off •Auto shut off saves battery life;manualshutoffpossiblebypressing“Power”buttonfor 2 seconds

•Default changeable: auto power off/ manual power off

•Withdefaultsetatautopoweroff,powerwill off automatically after 10 minutes if no buttonispressed.

Display lapse time Approx.1second.

Data Output RS 232 PC serial interface

Operating Temperature 0 to 50 °C (32 to 122°F) for the instrument (notincludingprobes)

Operating Humidity Less than 80% rel. humidity

Power Supply •DC1.5Vwith4batteries (mignonsize; TypeAA)

•DC9Vbyadapterinput

Power Current •Operation:approx.DC28mA

•Clock(poweroff):approx.DC1µA

2

Weight • instrument390g(batteriesincluded)

•withprotectivecovering620g

Dimension instrument:203x76x38mm•

with protective covering: approx. •220 x 125 x 45 mm

1.2 Electrical Specifications (23± 5°C)

A. pH/mV

Measurement pH 0 to 14 pH

mV -1999mVto1999mV

Input Impedance 1012 ohm

Temperature Compensation for pH measurement

Manual 0 to 100°C

(32 to 212°F)

Automatic(ATC) 0to65°C

(32 to 149 °F) with tem-peratureprobe

pHCalibration 1to3pointcalibrationusing

pH7/pH4/pH10buffersolutions

Threepointcalibrationensuresbestlinearityand accuracy

Measurement Range Resolution Accuracy

pH 0 to 14 pH 0.01 pH ± (0.02 pH + 2 digits)

mV -1999to1999mV 1mV ± (0.5 % pH + 2 digits)

*pHaccuracyisbasedoncalibratedmeteronly.

3

B. Conductivity

Conductivityprobe Carbon rod electrode for longlife

Function •Conduction(µS,mS)

•TotalDissolvedSolids(ppm)

•Temperature(°C,°F)

Temperature Compensation Automatic from 0 to 60°C (32–140°F),

with temperature compensa-tion factor variable between 0 to 5 % per °C

ProbeOperatingTemperature 0to60°C(32to140°F)

ProbeDimension Round, 22 mm diameter x 120 mm length

ProbeWeight approx.65g

Range Measurement Resolution Accuracy

200µS 0to200.0µS/cm 0.1µS/cm ± (2 % F.S. + 1 digit)2 mS 0.2 to 2.000 mS / cm 0.001 mS / cm

20 mS 2 to 20.00 mS / cm 0.01 mS / cm

200 mS 20 to 200.0 mS / cm 0.1 mS / cm

F.S. = Full Scale

4

C. TDS (Total Dissolved Solids)

Range Measurement Resolution Accuracy

200 ppm 0 to 132 ppm 0.1 ppm ± (2 % F.S. + 1 digit)2,000ppm 132to1,320ppm 1 ppm

20,000ppm 1,320to13,200ppm 10 ppm

200,000ppm 13,200to132,000ppm 100 ppm

F.S. = Full Scale

D. Temperature

Function Measurement Resolution Accuracy

°C 0°Cto60°C 0.1°C ± 0.8°C

°F 32°F to 140°F 0.1°F ± 1.5°F

E. Dissolved oxygen

OxygenProbe Polarographictypeoxygenprobe

ProbeCompensation

andAdjustment

Temperature 0to50°C,automatic,

(3 to 122 °F)

Salt 0 to 39 % Salt

Height 0 to 8900 meter

ProbeWeight approx. 195 g

ProbeSize Round,190mmlengthx28mmdiameter

Measurement Range Resolution Accuracy(23±5°C)

Dissolved Oxygen 0 to 20.0 mg/L 0.1 mg/L O2 ± 0.4 mg/L O2

OxygeninAir 0 to 100 % 0.1 % O2 ± 0.7 % O2

5

2. Front Panel Description (Fig. A)

A-1 DisplayA-2 Power ButtonA-3 REC Button (Enter Button)A-4 HOLD Button (ESC Button)A-5 Mode Button ( Up Button, Zero Button)A-6 Function Button (Range Button, Down Button)A-7 Send Button (Clock Button)A-8 SET Button (Logger Button)A-9 StandA-10 Battery Compartment CoverA-11 Battery Cover ScrewA-12 Tripod Fix NutA-13 Temp. Socket (pH ATC Socket)A-14 CD SocketA-15 DO SocketA-16 pH Socket (BNC Socket)

A-2 A-3 A-4 A-5 A-6 A-7 A-8

A-1

A-15A-14A-13

A-16

A-12 A-9 A-11 A-10

6

A-17 DC 9V Power Adapter Input SocketA-18 RS-232 Output TerminalA-19 System Reset ButtonA-20 LCD Brightness Adjust

Attention:

Please do not put more than one electrode only into the wa-ter sample when using an instrument that works with various electrodes.

Only start the measurement for which the according electrode is immersed in the sample.

A-17 A-18 A-19 A-20

DC IN

RS232RESET

7

3. pH/mV Measuring and Calibration Procedure

Display layoutMeasurementValue

PH

Manual Temp.25.0 °C

Temp. value Temp unit

pH

or

mV

Manual Temp. or

AutoTemp.

10.00

The meter default settings are as follows:•The display unit is set to pH.• The temperature unit is set to °C.

• Manual temperature setting (without ATC probe connection)

• Auto power off.

• Data logger function sampling time: 2 seconds.

8

3.1 pH measurement (with manual temperature setting)

1)AttachthepHElectrodebyinstallingthe“ProbePlug“ (Fig.B-1)intothe“pHSocket/BNCSocket“(Page5,Fig.A-16). 2)Turnontheinstrumentbypressingthe“Power”buttononce.

3)Keeppressingthe“Mode”buttonuntilthedisplayofbottom rightshows“pH“and“ManualTemp.“indicator.

4) Adjust the Manual Temp. value exactly to the same temperature as the solution. For procedure refer to chapter 7.7, page 28. 5)RemovecapandholdthepHElectrodebody(Fig.B-2)andcom- pletelyimmersethe“SensingHead“(Fig.B-3)inthesolutionto bemeasuredandgentlyswirltheprobe.

6)TheupperdisplaywillshowthepHvalue,thebottomleftdisplay will show the Manual Temp. setting.

Fig. B

B-1

B-2

B-3

B-4

9

3.2 pH measurement (with ATC , automatic Temperature Compensation)

1)Alltheproceduresarethesameasfor3.1“pHmeasurement (manualtemperaturesetting)“,exceptforattachmentofa temperatureprobebyinsertingtheplugofthetemperature probeintothe“Temp.Socket“(Page5,Fig.A-13),andimmers- ingthesensingheadofthetemperatureprobeintothemeasure- ment solution.

2)TheupperdisplaywillshowthepHvalue,thebottomleft displaywillshowtheTemp.valueofthemeasuredsolution,and thebottomrightdisplaywillshow“AutoTemp.“asexamplebelow:

When not in use the “Electrode Sensing Head“ (Page 8, Fig. B-3) should always be immersed in water by part-filling the probe cap, (Page 8, Fig. B-4) and ensuring that the cap is firmly lifted onto the probe. Failure to do so will reduce probe life.

3.3 mV Measurement

TheinstrumenthasabuiltinmV(millivolt)measurementfunction,whichenablesyoutomakeion-selective,ORP(oxidationreductionpotential),andotherprecisemVmeasurements.

1)AttachtheORPElectrodebyinstallingthe“ProbePlug“ofthe ORPelectrodeintothe“pHSocket/BNCSocket“(Page5,Fig.A-16).

2)Poweronthemeterbypressingthe“Power”buttononce.

3)Keeppressingthe“Mode”buttonuntilthedisplayatbottom rightshows“PH“and“ManualTemp.“indicator.

PH

Auto Temp.25.0 °C

7.01

10

Press the “Function” button once so that the bottom right display shows “mV“ .

4)TheupperdisplaywillshowthemVvalue.

3.4 pH calibration

Calibration - Introduction

An“ideal”pHElectrodegenerates0mVatpH7.00(177.4mVatpH4).Themeterhasbeencalibratedwithsignalswhichsimulatethe“ideal”pHElectrode(basedon25°Cambientenvironment).HowevernoteverypHElectrodeisasaccurateasthe“ideal”one,socalibrationproceduresarenecessarybeforefirsttimemeasure-ment.Inadditiontocalibrationbeforefirsttimemeasurement,us-ersarealsorecommendedtocarryoutregularcalibrationtoensurehigh accuracy measurements.

Required Equipment for Calibration

1)pHElectrode.

2)pHbuffersolutions.

Calibration Procedure

1)AttachthepHElectrodebyinstallingthe“ProbePlug“(Page8, Fig.B-1)intothe“pHSocket/BNCSocket“(Page5,Fig.A-16).

2)Poweronthemeter,setthemodetopHmeasurement,andthe bottomrightdisplaywillshow“PH“.

3)Adjustthe“TemperatureCompensationValue“tomakeitthe sametemperatureasthepHbuffersolution.

• Manual temperature compensation value adjustment procedure, refer to 7-7, page 28.

• Automatic temperature compensation, refer to 3.2, Page 9.

4)Holdthe“pHElectrodebody“(Page8,Fig.B-2)andcompletely immersethe“SensingHead“(Page8,Fig.B-3)inthebuffersolu- tionandgentlyswirltheprobe.ThedisplaywillshowthepHvalue.

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5)Pressthe“REC”buttonand“HOLD”buttonatthesametime. Thedisplaywillshowthefollowingscreenasanexample.Now release.

6)• IfthebuffersolutionispH7.0(±1pH),theupperdisplaywill show 7.00 automatically.

• IfthebuffersolutionispH4.0(±1pH),theupperdisplaywill show 4.00 automatically.

• IfthebuffersolutionispH10.0(±1pH),theupperdisplay will show 10.00 automatically.

• IfthebuffersolutionvalueisbeyondpH7.00,pH4.00, pH10.00(forexample7.01,4.02,10.03)thenuse

“ ”button,“ ”buttontoadjustthedisplayvaluetoexactly matchthepHbuffersolutionvalue.

7)Pressthe“Enter”buttontwicetosavethecalibrationdataand finishthecalibrationprocedure.

8)Thedescribedprocedurecanbeperformedforthefollowing calibrationpoints:

pH7 calibration

pH4 calibration

pH10 calibration

•CalibrationshouldalwaysstartwithpH7,followedbypH4and/ orpH10calibration.

•Rinsetheelectrodewithdistilledwaterbeforeeachcalibration point.

PH CAL.

^, v Enter : Y23.5 °C

7.00

12

•Repeattheabovecalibrationproceduresatleasttwicetoensure accuracy.

3.5 ORP calibration

1)AttachtheORPelectrode(optional,ORP-14)byconnectingthe ORP electrode to the meter.

2)Poweronthemeter,andsetthemodeandfunctionto“mV“ (refertochapter3.3,Page9).

3) Immerse the sensing head of the ORP electrode in the ORP standardbuffersolution.TheupperdisplaywillshowtheORP valueinmV.

4)Pressthe“REC”buttonand“HOLD”buttonatthesametime. Thedisplaywillshowthefollowingscreenasanexample.Now release.

5)Use“ ”button,“ ”buttontoadjusttheupperdisplayvalueto exactlymatchtheORPbuffersolutionvalue.Pressthe“Enter” buttontwicetosavethecalibrationdataandfinishthecalibra- tion procedure.

• ORP calibration is only possible if the ORP buffer solution value is > 100 mV.

• ORP calibration at less than 100 mV is not permitted.

mV

Adjust201

235

Aiv

13

4. Conductivity/TDS Measuring and Calibration Procedure

Display layoutMeasurementValue

200.0 µS

Auto Range24.2 °C

Temp. value Temp unit AutoorManual

range

19.00

The meter default settings are as follows:•Thedisplayunitissettoconductivity(µS,mS).•Thetemperatureunitissetto°C.•Temp.compensationfactorissetto2.0%per°C.•Autorange.•Autopoweroff.•Dataloggerfunctionsamplingtime: 2 seconds.

Range

scale

14

4.1 µS, mS measurement

1)AttachtheConductivityProbebyinstallingthe“ProbePlug“ (Fig.C-1)intothe“CDSocket“(Page5,Fig.A-14). 2)Poweronthemeterbypressing“Power”buttononce.

3)Keeppressingthe“Mode”buttonuntilthebottomrightdisplay showsavalue(e.g.“200mS“)and“AutoRange“.

4)Removeprobecapandholdtheprobebody(Fig.C-2)andcom- pletelyimmersethe“SensingHead“(Fig.C-3)inthesolutionto bemeasured.Swirltheprobetoletanyairbubbleescapefrom the sensing head.

5)Thedisplaywillshowtheconductivityvaluesineither“mS/cm” or“µS/cm”.Atthesametimethebottomleftdisplaywillshow the Temp. value of the measured solution.

Fig. C

C-1

C-2

C-3

15

Manual range operation

The meter default is set to auto range mode. Under auto range measurement,thebottomrightdisplaywillshowthe“AutoRange“indicator.Ifmanualrangemodeisrequired,theproceduresare as follows:

1)Pressthe“Range”buttoncontinuouslyforatleasttwoseconds untilthebottomrightdisplayshowsthe“ManualRange“indica- tor.Releasethe“Range”button.Nowthemeterissetformanual range operation.

2)Pressthe“Range”buttononcetochangetherange.Therange (200µS,2mS,20mS,200mS)willshowunderthemeasure- ment value.

3)• Ifthedisplayshows“ ---- “,itindicatesanoverrange.

Selectthenext,higherrange.

• Ifthedisplayshows“ ----“,itindicatesanunderrange. Selectthenext,lowerrange.

4)TochangeManualRangebacktoAutoRange,pressthe “Range”buttoncontinuouslyforatleasttwosecondsuntilthe bottomrightdisplayshowsthe“AutoRange“Indicator.Release the“Range”button.NowthemeterissetforAutorangemode again.

Change the Temp. unit to °F

TochangetheTemp.unitfrom°Cto°F,pleaserefertopage28,chapter7.6(Temp.UnitDefaultSetting)

Change the Temp. Coefficient Factor

The default Temp. compensation factor value of the measurement solutionissetto2.0%per°C.Tochangeit,pleaserefertopage28,chapter7.8(Temp.CompensationFactorSetting).

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4.2 TDS (ppm) measurement

Measuringproceduresarethesameasabove4.1 Conductivity (µS, mS) measurement,exceptforchangingthedisplayunitfromµS,mStoppm.Fordetailedprocedurespleaserefertopage29,chapter7.9CD(µS,mS),TDS(ppm)Setting.

4.3 Calibration

1)Obtainathestandardconductivitysolution: For example :

• 2mSrangecalibrationsolution:

1.413 mS Conductivity Standard Solution

• 200µSrangecalibrationsolution:

80 µS Conductivity Standard Solution

• 20mSrangecalibrationsolution:

12.88 mS Conductivity Standard Solution

or other Conductivity Standard Solution

2)Installthe“ProbePlug“(Page14Fig.C-1)intothe“CDSocket“ (Page5,Fig.A-14).

3)Poweronthemeter,andsetthemodetoconductivity

measurement(µS,mS).

4)Holdtheprobebody(Page14,Fig.C-2)andcompletelyimmerse “SensingHead“(Page14,Fig.C-3)inthestandardsolution. Swirltheprobetoletanyairbubbleescapefromthesensing head. The display will show the conductivity mS ( mS ) values.

5)Pressthe“REC”buttonand“HOLD”buttonatthesametime. Thedisplaywillshowthefollowingscreen,asanexample.Now release.

17

6)Use“ ”button(Page5,Fig.A-5),“ ”buttontoadjustthe upper display value to match the standard conductivity value. 7)Pressthe“Enter”buttontwicetosavethecalibration data,andfinishthecalibrationprocedure.

• If only one calibration point is needed, just set the 2 mS range (1.413 mS Cal.). • A multi-point calibration procedure should always start with 2 mS range (1.413 mS Cal.), then proceed to other ranges (20 µS range, 20 mS range or 200 mS range) if necessary.

CD CAL.

^, v ENTER: Y23.5 °C

1.413

18

Display layout MeasurementValue

% O2

24.2 °C

Temp. value Temp unit Temp. unit % O2 or mg/L

20.9

5. DO (Dissolved Oxygen) Measuring and Calibration Procedure

ATTENTION: Make sure the Oxygen probe is filled with Elec-trolyte!

To fill the Probe‘s Electrolyte, refer to chapter 5.3 “Probe maintenance“, page 22.

The meter default settings are as follows: •Thedisplayunitissetto%O2. •Thetemperatureunitissetto°C. •Autopoweroff. •Dataloggersamplingtime:2seconds.

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5.1 Dissolved Oxygen measurement

Fig. D

1)AttachtheOxygenProbebyinstallingthe“ProbePlug“(Fig.D-1) intothe“DOSocket“(Page5,Fig.A-15).2)Poweronthemeterbypressingthe“Power”buttononce.3)Keeppressingthe“Mode”buttonuntilthebottomrigthdisplay shows“%O2“.

CAUTION! Ensure calibration on air before measurement.Wait approx. 2 minute until the reading value stabilizes. If the reading value on air is not within 20.7 to 21.1 (20.9 ± 0.2), then proceed with calibration procedures first. For calibration procedures, please refer chapter 5.2, page 21. After completing the calibration procedures, the display should show a value between 20.8 and 21.0 (20.9 ± 0.1).

4)Pressthe“Function”buttononce,andthebottomrightdisplay willshow“mg/L“.NowthemeterisreadyfortheDissolved Oxygen measurement.

D-1D-2

D-3

D-5

D-4

20

5)• Removetheprotectivecoverfromtheprobeheadand immersetheprobetoadepthofatleast10cminthemeas- uredliquidinorderfortheautomatictemperaturecompensa- tiontotakeeffect. •Thermalequilibriummustoccurbetweentheprobe&the measurementsample,whichusuallytakestoafewminutes iftheTemp.differencebetweenthetwoisonlyafewdegrees Celsius. •Tomeasurethedissolvedoxygencontentinanygiven liquid,itissufficienttoimmersethetipoftheprobeinthe solution,makingsurethatthevelocityoftheliquidcoming intocontactwiththeprobeisatleast0.2-0.3m/s.Thisis achievedbyswirlingtheprobeinthesolution. •Duringlaboratorymeasurements,theuseofamagnetic stirrer/agitatorisrecommended.Inthisway,errorsduetoair diffusion in the solution are reduced to a minimum. 6)ThedisplaywillshowtheDissolvedOxygenvalues(mg/L).Atthe sametime,thebottomleftdisplaywillshowtheTemp.valueof the measured solution. 7)Rinsetheprobecarefullywithnormaltapwateraftereach series of measurements.

Oxygen in the air Whenthedisplayunitshows“%O2“,thisrepresentsanapproxi-mate air Oxygen value. Changing the Temp. unit to °F TochangetheTemp.unitfrom°Cto°F,pleaserefertopage28,chapter7.6(Temp.UnitDefaultSetting).

“% Salt“ compensation value adjustment Tochangethe%Saltcompensationvalue,refertopage29,chap-ter 7.10 (% Salt Compensation value Setting).

21

“Height“ (Altitude) compensation value adjustment TochangetheHeightcompensationvalue,pleaserefertopage 29,chapter7.11(HeightCompensationvalueSetting).

5.2 Calibration 1)Installthe“ProbePlug“(Page19,Fig.D-1)intothe“DOSocket“ (Page5,Fig.A-15).2)Poweronthemeterbypressingthe“Power”buttononce.3)Keeppressingthe“Mode”buttonuntilthebottomrightdisplay shows“%O2“. Wait for at least 5 minutes until the display reading values stabilise with no fluctuation. 4)Pressthe“REC”buttonand“HOLD”buttonatthesametime. Thedisplaywillshowthefollowingscreen,asanexample.Now release.

5)Pressthe“Enter”buttontwice.Thiswillsavethecalibrationdata andfinishthecalibrationprocedure.Finallythelowerdisplay willshow“O2CAL.OK“.Returntothenormalscreen. Thecompletecalibrationprocedurewilltakeapproximately30 seconds. Calibration - additional information: As oxygen in air is typically 20.9 %, use ambient air 02 for quick & precise calibration.

O2 CAL.

ESC:N ENTER: Y23.5 °C

20.9

22

5.3 DO Probe maintenance

a) First time use of the meter: TokeeptheDOprobeinthebestcondition,besuretofillthe OxygenProbe,withElectrolytepriortofirstuse.

b) After using the probe for a certain period: Iftheusercannotcalibratethemeterproperlyorthemeter‘s readingsarenotstable,pleasechecktheoxygenprobetosee iftheelectrolyteintheprobeheadcontainerhasrunoutorthe diaphragm(insidetheprobehead)hasaproblem(e.g.isdirty). Ifyes,pleasefilltheelectrolyteorchangethediaphragmset. Thenre-calibrate.

Diaphragm (probe head including diaphragm set):AkeycomponentoftheoxygenprobeisthethinTeflondiaphragmhousedinthetipoftheprobe.Thisdiaphragmispermeablebyoxygenmoleculesbutnotbytheconsiderablylargermoleculescontainedintheelectrolyte.Accordinglyoxygenmaydiffusethroughouttheelectrolytesolutioncontainedintheprobe,anditsconcentrationmaybequantifiedbythemeasurementcircuit.Thissensitive diaphragm is rather delicate and is easily damaged if it comesintocontactwithsolidobjectsorissubjectedtoknocks.Ifthediaphragmisdamagedortheelectrolytehasrunout,pleaseseefollowing procedure:

23

1)Unscrewthe“ProbeHead“(Page23,FigE-3).2)PourouttheoldElectrolytefromthecontainerin the“Probehead“.3)FillthecontainerwithnewElectrolyte.4)Screwtheprobehead(FigE-3)backontothe probebody.5)Whennotinuse,inserttheprobeheadintothe probeprotectioncover(Page19,Fig.D-5)thatis equippedwithawetsponge.

ProbeElectrolyte

ProbeheadincludingDiaphragm set

E-1

E-2 E-3

Fig.E

E-1Probebody

E-2Temp.sensor

E-3Probehead

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6. Data Load, Data Record, Data Logger

6.1 Data Hold Duringthemeasurement,pressthe“Hold”buttononcetoholdthemeasuredvalueandtheLCDwilldisplaya“HOLD“symbol.Pressthe“Hold”buttononceagaintoreleasethedataholdfunction.

6.2 Data Record (MAX, MIN reading) 1) The data record function records the maximum and minimum readings.Pressthe“REC”buttononcetostarttheDataRecord functionanda“REC“symbolwillbedisplayed.2)Withthe“REC“symbolonthedisplay: a)Pressthe“REC”buttononcemore.The“RECMAX“symbol along with the maximum value will appear on the display. To deletethemaximumvalue,justpressthe“Hold”buttononce. Thedisplaywillthenshowonlythe“REC“symbolandthe meter will continue to record data in the memory. b)Pressthe“REC”buttonagain.The“RECMIN“symbolalong with the minimum value will appear on the display. To deletetheminimumvalue,justpressthe“Hold”buttononce. Thedisplaywillthenshowonlythe“REC“symbolandthe meter will continue to record data in the memory. c)Toexitthememoryrecordfunction,justpressthe“REC“ buttonforatleast2seconds.Thedisplaywillreverttothe current reading.

6.3 Data Logger Thedataloggerfunctioncansave16,000readingswithtimeanddate.(Realtimedataloggerwithbuilt-in-clock(hour-min-sec.,year-month-date)).

25

The data logger procedure is as follows: a)Pushingthe“Logger”buttononcewillshowthesamplingtime valueonthebottomleftdisplaythendisappeared.b)Pressthe“REC”buttononcetostarttheDataRecordfunction anda“REC“symbolwillbedisplayed.c) Auto Data Logger

TheSamplingfrequencycanbesetfrom1secto8h 59min 59sec (refer to chapter 7.4 page 27). E.g.:Ifasamplingfrequencyof1minisset,themeter stores the measured value every minute until the data logger function is stopped. Press the“Logger”buttononcetostarttheAutoDataLoggerfunction,atthesamethebottomrightdisplaywillshowtheindicator“Recording....“.NowtheDataLoggerfunctionhasstarted.Theupperdisplaywillshowa“DATA“indicatoralongwith“REC“marker.Pressthe“Logger”buttononcetostopthedata

loggerfunction.The“DATA“indicatorwilldisappear.Ifyoupress theLoggerbuttononcemoretheDataLoggerfunctionwill re-start. d) Manual Data Logger (Sampling time is set to 0 second). Please refertochapter7.4page27.Pressthe“Logger”buttononce tosaveonesetofdatainthememory.Atthesametimethe bottomrightdisplaywillflashtheindicator“Recording....“.Now the Data logger function has started. The upper display will show the“DATA“indicatoralongwiththe“REC“marker.e) Memory full Withthedataloggerinaction,ifthebottomrightdisplayshows “Full“,itindicatesthememoryhasover16,000setsandis therefore full.

TofindouttheFreeMemory,pleaserefertochapter7.1,Page•27. Toclearthememoryofdata,pleaserefertochapter7.2,Page•27.

25.5°C 2.000 mSAutoRange

25.5°C 2.000 mSAutoRange

REC DATA

26

7. Advanced Adjustment ProceduresBeforecarryingoutthefollowingAdvancedAdjustmentProceduresexitthe“Holdfunction“andthe“Recordfunction“first.Thedis-playwillnotshowthe“HOLD“andthe“REC“marker.

1)Pressthe“SET”buttonforatleasttwosecondsuntilthelower display shows:

XXXXXMemorySpace

Pushthe“ESC”buttontoreturntothenormalmeasuringdisplay.

2)Toselect“AdvancedSettingFunction”,pressandholdtheSET button,thenpressagaintosuccessivelyshowthefollowing:

7.1 Memory Space 7.2 Clear Memory 7.3 Date/Time Set 7.4 Sample Time 7.5AutoPowerOff7.6Temp.Unit

The following functions appear only if the corresponding measure-mentfunctionisselected(pH,CD,DO)7.7M.TEMP.SET(pHmode) 7.8 Temp. Comp. (CD mode) 7.9CD,TDSSelect(CDmode) 7.10%SaltSET(DOMode)7.11HeightValue(DOMode) 7.12ESC->Finish

27

3)TomakeadvancedAdjustments,usethefollowingbuttons: “ESC”,“Enter”,“ ”Up,“ ”Down,“SET”.

7.1 Check Memory Space Tocheckthefreememory,pressandholdtheSETbuttonforatleast 2 seconds. The display will show.

XXXXX MemorySpace

XXXXXisthefreememorybalance.ForexampleXXXXX=15417.

7.2 Clear Memory To delete readings from the memory: • PushENTERbuttontwicetoconfirm.•PresstheESCbuttononcetoquit,andreturntothemain measurement display.

7.3 Date/Time Setting • Use“ ”Up,“ ”Downand“Enter”(->)tosettheDate(year- month-date) and the Time (hour-min-sec). •AfterDate/Timeadjustment,pushthe“Enter”button, thenpressthe“ESC”buttontosavetheclockdataintothe memory,andreturntothenormaldisplay.

7.4 Sample Time Setting •Use“ ”Up,“ ”Downand“Enter”(->)toselecttheSample Time (hour-min-sec). •AfterSampleTimeadjustment,pushthe“Enter”button,then pressthe“ESC”buttontosavetheclockdataintothememory and return to normal display.

28

7.5 Auto Power Off Default Setting •Use“ ”Up,“ ”Downtoselect“1“or“0“.

1=AutopowerOn. 0=AutopowerOff.

• AfterAutoPowerOffadjustment,pushthe“Enter”button,then press“ESC”tosavethedataandreturntothenormaldisplay.

7.6 Temp. Unit Default Setting • Use“ ”Up,“ ”Downtoselect“1“or“0“.

1 = °F 0 = °C

•AfteradjustingtheTemperatureunit,pushthe“Enter”button, thenpress“ESC”tosavethedataandreturntothenormal display.

7.7 pH Manual Temp. Setting •Thisprocedureisonlytoadjustthemanualtemperature compensation value for pH measurement. • Thelowerdisplaywillshow:

M.TEMP.SET ^,vEnter:Y

• Use“ ”Up,“ ”DowntoselectthedesiredmanualTemp. compensation value. •Press“Enter“once,thenpress“ESC“tosavethedataand return to the normal display.

7.8 Temp. Compensation Factor Setting •ThisprocedureisonlyusedfortheConductivityfunction.•Use“ ”Up,“ ”DowntoselecttheTemp. Compensation Factor (% per °C) of the measured solution.

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•Aftersettingthedesiredvalue,press“Enter“,thenpress“ESC” to save the data and return to the normal display. •Temp.CompensationFactoristypicallysetto2.0%perC degree. 7.9 CD (µS, mS), TDS (ppm) Default Setting •ThisprocedureisonlyusedfortheConductivityfunction.•Use“ ”Up,“ ”Downtoselect“1“or“0“.

0=µS,mS 1 = ppm • Afteradjustingtheunit(µS/mS,ppm),press“Enter”,thenpress “ESC”tosavethedataandreturntothenormaldisplay.

7.10 DO % Salt Compensation Value Setting • ThisprocedureisonlyavailablefortheDOfunction. • Thelowerdisplaywillshow:

%SaltSET ^,vEnter:Y

• Use“ ”Up“,“ ”Downtoselectthedesired%SaltCompen- sationValue.•Press“Enter”once,thenpress“ESC”tosavethedataand return to the normal display. •%Saltistypicallysetto0%.

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7.11 DO Height (Altitude) Compensation Value Setting • ThisprocedureisonlyfortheDOfunction.• Thelowerdisplaywillshow:

0 = meter 1 = ft (foot) FT= foot 1 Foot = 0.3048 m

•Use“ ”Up,“ ”Downtoselect“0“or“1“. •Press“Enter”once,andthelowerdisplaywillshow:

HeightValue Meter • Use“ ”Up,“ ”DowntoselectthedesiredHeightvalue.•Press“Enter”once,thenpress“ESC”tosavethedataand return to the normal display. •Typicalsettingis0meter(0feet).

7.12 Escape from the SETTING function Press“ESC”oncetoquitandreturntothenormalmeasurementdisplayorpress“Enter”!

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8. Data Output From The Meter Tosenddataoutfromthemeter,exitthe“Holdfunction“and the“Recordfunction“first.Thedisplaywillnotshow“HOLD“ and“REC“markers.1)Pressandholdthe“SEND”buttonforatleast2secondsuntil thebottomrightdisplayshows“Transmitmode“,thenrelease thebutton. The display will show the following screen alternately:

Use“ ”Up,“ ”Downtoselectdifferentdatamemoryblocks (1 to 250).

The meter can save up to a maximum of 16,000 data sets. These data will be saved into a maximum of 250 memory blocks.

One“MemoryBlock“means:ThedatathatcanbesavedinoneroutineDataLoggerprocedure.PleasereferChapter6.3,Page24.

µS

Transmit mode1

158.4µS

Transmit modexx:xx:xx

1

Blockno. First data ineachblock

Start time ofeachblock

Start data address ofeachblock

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Block1 Data1 to DataX

Block2 DataX+1 to DataY

.................. ..................

Block250 DataZ to Data16,000

3)OncethedesiredMemoryBlockno.hasbeenselected,pushthe “Send”buttononce,andthedataintheMemoryBlockwill transmit.Duringdataoutput,thebottomrightdisplaywillshow “SendingData!“.Whendataoutputiscompleted,thebottom rightdisplaywillshow“Transmitmode“again.4)Push“ESC”buttontoexitthedataoutputfunctionandreturn to the normal display. Remarks : • To transmit the data to a computer, connect an RS232 cable or USB cable, and start the Data Logger software. • When transmitting data, each transmission sends only one Memory Block at a time. For example block 1, block 2 ... or block 250.

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9. RS232 PC-Serial Interface

The instrument has an RS232 PC serial interface via the RS-232 Out Terminal“(Page6,Fig.A-18).

Dataoutputisviaa16digitstreamwhichcanbedownloadedtouser‘sspecificapplication.AnRS232leadwiththefollowingcon-nectionwillberequiredtolinktheinstrumenttothePCserialport:

MeterPC(3.5mmjackplug) (9W‚D“Connector) Center Pin........................Pin 4 Ground/shield...................Pin 2 2.2 K resister Pin 5

The16digitdatastreamwillbedisplayedinthefollowingformat:

D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0

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Eachdigitindicatesthefollowingstatus:

D15 StartWord=02 D14 4 D13 Sending upper display data = 1 Sending lower display data = 2 D12,D11 AnnunciatorforDisplay µS=13 mS=14 ppm=19 pH=05 mV=18 mg/L=07 %O2=06 D10 Polarity 0=Positive1=Negative D9 Decimal Point (DP) position from right to left 0=NoDP,1=1DP,2=2DP,3=3DP D8toD1 Displayreading,D1=LSD,D8=MSD For example: Ifthedisplayreadingis1234,thenD8to D1 is: 00001234 D0 EndWord=0D

RS232 setting Baudrate 9600 Parity Noparity Databitno. 8Databits Stopbit 1Stopbit

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10. Battery Replacement1)Whentheleftcornerofthedisplayshows“ “,itisnecessary toreplacethebatteries(4xmignonsizetypeAA1.5V).2)Unscrewthesingleretainingscrew,andthenslideopenthe “BatteryCover“(Page5,Fig.A-10)andremovethebatteries.3)Replacewithnewbatteriesandslideonthecover.Replacethe retaining screw.4)Makesurethebatterycoveristightlysecuredafterchangingthe batteries.

11. System Reset Ifthemeterexperiencesproblems,suchas:

CPU system is garbled (for example, the key button cannot be operated.....).

ThensystemRESETwillfixtheproblem.ThesystemRESETproce-dure is as follows:

Useapintooltopushthe“SystemResetButton“(Page6,Fig.A-19).Thenpress“Power”onagaintofixtheproblem.

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12. OPTIONAL ACCESSORIES

RS232cable •Computerinterfacecable.UPCB-02 •Usedtoconnectthemetertoacomputer (COM port). USBcable •Computerinterfacecable. DataLogger •Softwareusedtodownloaddatafrom software the data logger (data recorder) to a SW-DL2005 computer. DataAcquisition •TheSW-U801-WINisapowerfulmulti Software softwaredisplay(1/2/4/6/8displays) SW-U801-WINapplication,providingthe functionsofdatalogging,textdisplay, angulardisplay,chartdisplay,datarecorder high/lowlimit,dataquery,textreport,chart report.An.xxx.mdbdatafilecanberetrieved forEXCEL,ACCESS..,andotherintelligent applications.

Poweradapter AC110VtoDC9V. USAtypeplug.

Poweradapter AC220V/230VtoDC9V. Europeantypeplug.

Poweradapter AC220V/230VtoDC9V. UK type plug.

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Accessories for pH/Redox

SpareelectrodeforpH,pH0–14,plastic/geltype,BNC-plug(P/N:L721330) Redoxelectrode,plastic/gel,BNC-plug(P/N:L721242)

Accessories for pH- and Redox electrodes

pH-BuffersolutionsetpH4,pH7,pH10(25°C)colourcoded90mleachinplasticbottles,traceabletoN.I.S.T(P/N:L721250)

pHBuffersolution4.00(25°C)red,500ml,traceabletoN.I.S.T.(P/N:R-5012-4)

pHBuffersolution7.00(25°C)yellow,500ml,traceabletoN.I.S.T.(P/N:R-5013-4)

pHBuffersolution10.00(25°C)blue,500ml,traceabletoN.I.S.T.(P/N:R-5014-4)

pHBuffersolution4.00(25°C)red,1ltr.,traceabletoN.I.S.T.(P/N:R-5012-5)

pHBuffersolution7.00(25°C)yellow,1ltr.,traceabletoN.I.S.T.(P/N:R-5013-5)

pHBuffersolution10.00(25°C)blue,1ltr.,traceabletoN.I.S.T.(P/N:R-5014-5)

Accessories for conductivity

Conductivityprobe(P/N:L724400)

Calibrationsolution1413µS/cm,500ml,traceabletoN.I.S.T.(P/N:L722250)

Accessories for oxygen

Oxygen sensor (P/N:L7222410)

Sparemembraneforoxygensensor(P/N:L724460)

Spare electrolyte for oxygen sensor (P/N:L724470)

Accessories

TemperatureprobePT1000(P/N:L724420)

RS232cable(P/N:L724500)

USBcable(P/N:L724540)

Data logger software

Dataacquisitionsoftware

Power supply (P/N:L724540)

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