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horiba U-51, Instruction Manual

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horiba U-51 Instruction Manual Download Page 114

4 Maintenance

90

5.

Attach a membrane cap to DO sensor

6.

Check for membrane surface 

Check air bubbles in a membrane cap.

NG 

→

 Replace a membrane cap again.

Check that span calibration can be performed.

Note

If the membrane cap is not attached correctly, sensitivity may be lost or response speed may
decrease.

 with holding a membrane cap tight.

Twist a DO sensor

Good: Limited air bubbles

NG: Air bubbles of more than 5 mm in diameter

Summary of Contents for U-51

Page 1: ...CODE GZ0000230552H ...

Page 2: ...e of the following cases none of the warranties set forth herein shall be extended Any malfunction or damage attributable to improper operation Any malfunction attributable to repair or modification by any person not authorized by HORIBA Advanced Techno Co Ltd Any malfunction or damage attributable to the use in an environment not specified in this manual Any malfunction or damage attributable to ...

Page 3: ...C for the object chemical This product should not be disposed of as unsorted household waste Your correct disposal of WEEE waste batteries and accumulators will contribute to reducing wasteful consumption of natural resources and protecting human health and the environment from potential negative effects caused by hazardous substance in products Contact your supplier for information on applicable ...

Page 4: ...de reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference i...

Page 5: ...ty labels affixed to the prod uct 9 languages including the above and English DANGER This indicates an imminently hazardous situation which if not avoided will result in death or serious injury This is to be limited to the most extreme situations WARNING This indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION This indicates a potentiall...

Page 6: ...mbole Warnmeldungen werden wie folgt beschrieben Lesen Sie die Meldungen und befolgen Sie die Anleitungen sorgfältig Liste der Sicherheitsschilder Die folgende Tabelle listet die am Produkt befestigten Schilder auf Weitere Details entnehmen Sie den Beschreibungen der individuellen Schilder weiter hinten in dieser Anleitung GEFAHR Dies weist auf eine unmittelbar gefährliche Situation hin die im Tod...

Page 7: ...s d avertissement Les messages d avertissement sont décrits comme suit Lisez les messages et suivez attenti vement les instructions Liste des étiquettes de sécurité Le tableau suivant répertorie les étiquettes fixées sur le produit Pour plus de détails reportez vous aux descriptions des étiquettes individuelles fournies ulté rieurement dans ce manuel DANGER Cela indique une situation dangereuse im...

Page 8: ...isure necessarie Categoria di pericolo e simboli di avvertenza I messaggi di avvertenza sono descritti come segue Leggere i messaggi e seguire con atten zione le istruzioni Elenco etichette di sicurezza La tabella seguente elenca le etichette applicate sul prodotto Per maggiori informazioni consultare la descrizione di ciascuna etichetta più avanti nel pre sente manuale PERICOLO Indica un pericolo...

Page 9: ...dessa problem Riskklassificering och varningssymboler Varningsmeddelandena beskrivs på följande sätt Läs meddelandena och följ anvisningarna noggrant Lista över säkerhetsetiketter I följande tabell listas de etiketter som sitter fastsatta på produkten Läs beskrivningarna för varje enskild etikett som finns längre fram i handboken för mer infor mation FARA Denna varnar för en omedelbart risksituati...

Page 10: ...ncia Los mensajes de advertencia se describen de la siguiente manera Lea los mensajes y siga las instrucciones atentamente Lista de etiquetas de seguridad En la siguiente tabla se muestran las etiquetas adheridas al producto Para obtener más información consulte las descripciones de las etiquetas individuales que se proporcionan más adelante en este manual PELIGRO Esto indica una situación de peli...

Page 11: ...rzegawcze Ostrzeżenia są opisane w następujący sposób Należy zapoznać się z ostrzeżeniami i ściśle przestrzegać instrukcji Lista etykiet bezpieczeństwa W poniższej tabeli wymieniono etykiety umieszczone na produkcie Bardziej szczegółowe informacje można znaleźć w opisach poszczególnych etykiet które znajdują się w dalszej części niniejszej publikacji NEBEZPIECZEŃSTWO Oznacza bezpośrednio niebezpie...

Page 12: ...gorie en waarschuwingssymbolen De waarschuwingen hebben de volgende betekenis Lees de uitleg en volg de instructies aan dachtig Lijst van veiligheidslabels In de volgende tabel worden de labels vermeld die op het product zijn aangebracht Raadpleeg voor meer details de beschrijving van de afzonderlijke labels verder in deze hand leiding GEVAAR Dit wijst op een onmiddellijk gevaarlijke situatie die ...

Page 13: ...定義される工業環境で使用することを想定した製品ではありません 工業環境においては 電磁妨害の影響を受ける可能性があり その場合には使用者が適切な対 策を講ずることが必要となることがあります 警告の種類と表示方法 本書および製品では 以下のような警告表示をしています 内容をよく理解して 正しく安全 にご使用ください 安全ラベル一覧 製品には以下の安全ラベルが貼り付けられています 安全ラベルの内容については 後述の各ラベルの説明を参照してください 危 険 取り扱いを誤った場合 使用者が死亡または重傷を負うことがあり か つその切迫の度合いが高いもの 警 告 取り扱いを誤った場合 使用者が死亡または重傷を負う可能性が想定さ れるもの 注 意 取り扱いを誤った場合 使用者が傷害を負うことが想定されるか また は物的損害の発生が想定されるもの 危険レベル 危険の種類 ラベル識別番号 警告 落下 32...

Page 14: ...die Strömung schnell ist bringen Sie den Haken an einem Ort an wo er sicher befestigt wer den kann WARNUNG HINFALLEN FRA CHUTE Ne pas fixer le crochet au corps La sonde peut être prise dans un fort courant et vous pouvez tomber à l eau En outre si la distance jusqu à la surface de l eau est grande ou que le courant est rapide fixer le crochet à un endroit où il peut être fixé fermement AVERTISSEME...

Page 15: ... SPA ADVERTENCIA CAÍDA UPADEK Nie mocować haka do ciała Sonda może zostać pochwycona przez silny prąd i spowodować upadek użyt kownika do wody Ponadto jeśli odległość do powierzchni wody jest duża lub przepływ jest szybki zaczepić hak w miejscu gdzie może zostać solidnie zamocowany POL OSTRZEŻENIE UPADEK VALLEN Verbind de haak niet met het lichaam De sonde kan worden opgevangen door een sterke str...

Page 16: ...contains important safety messages WARNING Do not disassemble or modify the meter May cause overheating or fire resulting in accidents CAUTION The pH and ORP sensors are made of glass Handle them carefully to avoid breakage Do not ingest the DO pH or ORP standard solutions If it comes into contact with the eyes rinse thoroughly with water If swallowed consult a physician Keep away from water when ...

Page 17: ...ubject to strong shocks Do not perform measurement in environments of magnetic fields Measurement errors may result The sensor probe is no longer waterproof when the sensors are not mounted Does not support measurement of samples containing fluorine Do not mistake the combination of sensor probe and turbidity sensor To disconnect the sensor cable or interface cable pull them out with holding the c...

Page 18: ...pment failure Do not wipe the control unit with organic solvents or powder polish The surface may deteriorate or its printing may disappear If the display becomes dirty wipe the dirt off with a soft cloth soaked in neutral detergent Do not turn the power OFF or disconnect the cable during calibration or setting Memory data may be erased To perform measurement connect the sensor probe cable before ...

Page 19: ...nsor guard to sensor probe in the measurement When sensor probe is used in calibration cups black and transparent or flow cell the sensor guard can be taken off Calibration During atmosphere calibration for the DO electrode with DO salinity compensation set to automatic values are compensated based on electrical conductivity but calibration is performed normally Location of use and storage Storage...

Page 20: ...ry points for correct operation and notifies the important points for handling the product Reference This indicates the part where to refer for information Tip This indicates reference information Original language This is the English translation of an original Japanese document ...

Page 21: ...14 3 1 6 GPS U 52G U 53G U 54G 15 3 2 Settings 18 3 2 1 Setting measurement methods 18 3 2 2 Setting sites 20 3 2 3 Unit for report 23 3 2 4 Sensor selection 25 3 2 5 Compensation 26 3 2 6 System settings 34 3 3 Calibration 41 3 3 1 Auto calibration 41 3 3 2 Manual calibration 44 3 4 Measurement 63 3 4 1 Storing data in memory manually 63 3 4 2 Automatic continuous measurement 65 3 5 Data operatio...

Page 22: ...rement 103 6 3 1 Principle of pH measurement 103 6 3 2 Temperature compensation 103 6 3 3 Standard solutions 103 6 4 DO measurement 105 6 4 1 Principle of DO measurement 105 6 4 2 Conditioning of DO sensor 105 6 4 3 Salinity calibration 106 6 4 4 Atmospheric pressure compensation DO Relation of altitude and air pressure 107 6 5 Conductivity COND measurement 110 6 5 1 Four AC electrode method 110 6...

Page 23: ... 115 6 10 1 Principle of depth measurement 115 6 10 2 Influence of temperature and calibration 115 6 11 Oxidation reduction potential ORP measurement 115 6 11 1 Principle of ORP measurement 115 6 11 2 Standard electrode reference electrode types and ORP 116 ...

Page 24: ......

Page 25: ...It is capable of making a maximum of eleven simultaneous measurements for various parameters and is perfect for use in the field The U 50 Series is designed with on site ease of use in mind provides a wide variety of functions and can be used for water quality measurements and inspections of river water groundwater and waste water ...

Page 26: ...vity COND Salinity SAL expressed as electrical conductivity Total dissolved solids TDS expressed as electrical conductivity Seawater specific gravity SG expressed as electrical conductivity Water temperature TEMP Turbidity TURB LED transmission front 30 scattering method Turbidity TURB tungsten lamp 90 transmission scattering method with wiper Turbidity TURB LED 90 transmission scattering method W...

Page 27: ...ttached to the sensor probe Turbidity sensor 7802 1 With U 54 U 54G only Attached to the sensor probe pH 4 standard solution 100 4 1 500 mL pH reference internal solution 330 1 250 mL DO sensor internal solution set 306 1 Internal solution 50 mL Sandpaper 8000 600 Syringe DO Membrane spare parts set 1 Spanner for DO sensor 1 Cleaning brush 1 calibration cup 1 transparent calibration cup black cali...

Page 28: ...arts name and functions Display Sensor probe U 51 Battery cover Front view Back view Display screen Operation key USB connector GPS unit U 52G U 53G U 54G DO sensor COND sensor pH sensor ORP sensor Reference electrode Temp sensor ...

Page 29: ...ctrode Temp sensor TURB sensor DO sensor COND sensor pH sensor ORP sensor Reference electrode Temp sensor YYYY MM DD Time Site name GPS reception USB connection status Sensor probe connection status Battery level Operation guidance Level 3 Sufficient power remaining Level 2 Remaining power does not affect operation Level 1 Batteries need replacing ...

Page 30: ...ment screen ENTER key Used to execute functions set entered values or store data in memory Used to change the size of measurement value CAL key When pressed in the measurement screen switches to the calibration screen ESC key Returns to the immediately preceding operation Used to stop measurement LIGHT key Turns the backlight ON OFF Using the backlight shortens battery life The backlight does not ...

Page 31: ...gen TDS total dissolved solids SALT salinity SG seawater specific gravity DEPTH water depth SALT salinity Only on models with a GPS unit GPS locate GPS locating accuracy 3 2 1 Setting measurement methods page 18 3 2 2 Setting sites page 20 3 2 3 Unit for report page 23 3 2 4 Sensor selection page 25 3 2 5 Compensation page 26 3 2 6 System settings page 34 DO dissolved oxygen Auto calibration pH CO...

Page 32: ...ime or replacing old batteries 1 Loosen the 4 screws on the battery cover by using No 2 Phillips head screwdriver and remove the cover 2 If replacing the batteries discard the old batteries 3 Insert new batteries in the control unit Check that the battery gasket is not dirty or twisted 4 Replace the battery cover and fasten it with the 4 screws Tighten the screws to less than 0 5 N m Battery cover...

Page 33: ...ydride secondary batteries can be used but the battery life is not guaranteed since it will vary according to usage number of times data is saved number of charges and amount of each charge In general secondary batteries have one half to one third the life of C size alkaline batteries The 70 hour battery life figure applies to a control unit operating temperature of 20 C or more The battery charac...

Page 34: ...ide problem free operation for three years but when using the clock continuously it should be replaced every two years as a precaution When replacing the coin battery for the clock leave the control unit ON If the coin battery is replaced when the control unit is turned OFF the clock will be reset to the default settings Coin battery ...

Page 35: ...ove the sensor guard 2 Remove the sensor plug 3 Coat the pH sensor O ring with a thin layer of silicon grease part No 3014017718 Note Be sure no grease from the O ring gets on the sensor connector If the sensor connector gets grease on it wipe it off with a soft cloth soaked in alcohol 4 Make sure there is no moisture on the sensor probe s sensor connector marked pH 5 Fasten the pH sensor securely...

Page 36: ...r securely by hand 6 Clean the sensor with an alcohol soaked cloth Attaching the reference electrode 1 Remove the sensor guard 2 Remove the sensor plug 3 Coat the reference electrode O ring with a thin layer of grease part No 3014017718 Note Be sure no grease from the O ring gets on the sensor connector If the sensor connector gets grease on it wipe it off with a soft cloth soaked in alcohol 4 Mak...

Page 37: ...at overflowed onto the DO sensor 4 Remove the sensor guard 5 Remove the sensor plug 6 Coat the DO sensor O ring with a thin layer of grease part No 3014017718 Note Be sure no grease from the O ring gets on the sensor connector If the sensor connector gets grease on it wipe it off with a soft cloth soaked in alcohol 7 Make sure there is no moisture on the sensor probe s sensor connector marked DO 8...

Page 38: ...the steps below when using the unit for the first time or when the system has not been used for 3 months or longer 1 Fill the transparent calibration cup to the line with pH 4 standard solution The transparent calibration cup has With TURB Measurement and Without TURB Measurement gauge lines 2 Insert the sensor probe in the transparent calibration cup Zoom Red mark Hook Transparent calibration cup...

Page 39: ...ply is required for DO sensor conditioning Turning ON the power of the control unit is necessary during sensor conditioning DO value will be higher than usual for a while after turning power ON See 6 4 2 Conditioning of DO sensor page 105 3 1 6 GPS U 52G U 53G U 54G The GPS position measurement precision is proportional to the GPS position measurement time When the position measurement precision i...

Page 40: ...10 seconds Position measurement starts automatically when warmup has finished Position measurement is performed up to 40 times The GPS location complete screen appears after successful position measurement The GPS location failure screen appears after position measurement has failed Redo the measurement in a location free from obstacles or wait for the meteorological conditions to improve before r...

Page 41: ...2 Press the down key to move the cursor to System then press the ENTER key 3 Press the down key to move the cursor to GPS locating accuracy then press the ENTER key 4 The screen below appears Move the cursor to the locating accuracy then press the ENTER key The black circle indicates the currently set precision ...

Page 42: ...ay to the SETTINGS screen Single measurement Pressing the MEAS key acquires the 5 second average for the selected measurement parameter Interval measurement Pressing the MEAS key acquires and saves the 5 second average for the selected measurement parameter in the set interval The measurement interval can be set to any value between 10 seconds and 24 hours Single measurement Pressing the MEAS key ...

Page 43: ...The black circle indicates the currently selected measurement mode 5 If you selected Interval measurement the display switches to the screen used to set the measurement interval Press the up and down keys to set the measurement interval The measurement interval can be set to any value between 10 seconds and 24 hours in the case of the U 51 U 52 and U 54 or between 30 seconds and 24 hours in the ca...

Page 44: ...0 site names can be registered Deleting sites You can select a previously created site and delete it Operation methods Selecting a site 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the ...

Page 45: ...site 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cursor to Site t...

Page 46: ...S and press the ENTER key to start deleting from the last character When you have finished entering the name save it by moving the cursor to SAVE and pressing the ENTER key Deleting a site 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp ...

Page 47: ...registered more than once 3 2 3 Unit for report Note Units can only be selected when the sensor probe is connected Follow the steps below to set the measurement units of measurement parameters No units are displayed if a measurement parameter has not been selected in the measurement parameter selection screen see 3 2 4 Sensor selection page 25 1 Press the control unit s POWER key for about 1 secon...

Page 48: ...e up and down keys to move the cursor to the item to change then press the ENTER key 5 A list of the units that can be selected appears The black circle indicates the currently selected unit Press the up and down keys to move the cursor to the desired unit then press the ENTER key 6 To save the changes press the up and down keys to move the cursor to SAVE then press the ENTER key If you do not wan...

Page 49: ...r the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cursor to Sensor selection then press the ENTER key A list of the measurement parameters that can be set and the currently set units are displayed 4 Move the cursor to each measurement parameter to change then press the ENTER key A check in the ch...

Page 50: ...To obtain correct value salinity compensation is needed The following modes are available for calculation of salinity compensation 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the opera...

Page 51: ...Default Auto 5 If you selected Input mode press the right key to display the compensation value input screen Press the up and down keys to enter the desired value then press the ENTER key to set it 6 To save the change press the up and down keys to move the cursor to SAVE then press the ENTER key If you don t want to save the change press the ESC key ...

Page 52: ...bubble in the internal solution is large change the internal solution Calibrate at the place of same atmospheric pressure before the measurement 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover dama...

Page 53: ...y the compensation value input screen Press the up and down keys to enter the desired value then press the ENTER key to set it 6 To save the change press the up and down keys to move the cursor to SAVE then press the ENTER key If you don t want to save the change press the ESC key ...

Page 54: ...WER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cursor to Compensation then press the ENTER key 4 ...

Page 55: ...y the compensation value input screen Press the up and down keys to enter the desired value then press the ENTER key to set it 6 To save the change press the up and down keys to move the cursor to SAVE then press the ENTER key If you don t want to save the change press the ESC key ...

Page 56: ...e This mode is not applicable to the conventional control unit and sensor probe To confirm the version see Version page 35 Input mode TDS is calculated according to the entered coefficient 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp ...

Page 57: ... setting AUTO EN27888 and Input mode Default Auto 5 If you selected Input mode press the right key to display the compensation value input screen Press the up and down keys to enter the desired value then press the ENTER key to set it 6 To save the change press the up and down keys to move the cursor to SAVE then press the ENTER key If you don t want to save the change press the ESC key ...

Page 58: ...e display language 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cu...

Page 59: ...rogram No and version of the sensor probe software will not be displayed if the sensor probe is not connected 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the...

Page 60: ...onds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cursor to System then press the ENTER key 4 Press the down key to move the cursor to Date time then press the ENTER key 5 Move the cursor to the da...

Page 61: ...r the preset amount of time 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to mo...

Page 62: ... unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down key to move the cursor to System then press the ENTER ke...

Page 63: ...l also be deleted at the same time 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key to switch the display to the SETTINGS screen 3 Press the down ke...

Page 64: ...NTER key again 6 A confirmation message appears asking whether to execute initialization Press the left key to move the cursor to YES then press the ENTER key The message Initialize Complete appears to indicate the process has finished ...

Page 65: ...ters are calibrated at 25 C pH Set to 4 01 zero point calibration the span is adjusted to the factory default value COND 0 449 S m 4 49 mS cm span calibration the zero point is adjusted to the factory default value TURB 0 NTU zero point calibration the span is adjusted to the factory default value DO 8 92 mg L span calibration the zero point is adjusted to the factory default value DEP 0 m zero po...

Page 66: ...The transparent calibration cup has With TURB Measurement and Without TURB Measurement gauge lines 4 Press the control unit s CAL key to set the calibration mode 5 Press the down key to move the cursor to Auto Calibration then press the ENTER key Transparent calibration cup Without TURB Measurement gauge line With TURB Measurement gauge line ...

Page 67: ...or and temperature sensor are submerged in the pH 4 standard solution and check that there are no air bubbles on the sensor 7 With the sensor probe still in the transparent calibration cup place the transparent calibration cup into the black calibration cup Transparent calibration cup Sensor probe Black calibration cup Transparent calibration cup Sensor probe ...

Page 68: ...bration after first resolving the issue according to the instructions in 4 7 Troubleshooting page 91 3 3 2 Manual calibration The procedures below describe how to calibrate each sensor individually Note The displayed units are the units set by selecting Unit for report in the SETTINGS screen Temperature TEMP calibration 1 Fill a bucket or similar container with water of a known temperature and ins...

Page 69: ...t zero point calibration or two calibration points zero point calibration and span calibration Carry out two calibration procedures to ensure good measurement precision throughout all measurement ranges 1 Calibrate the zero point Wash the transparent calibration cup 2 or 3 times with deionized water then fill it to the reference line with pH 6 86 standard solution 2 Wash the sensor probe 2 or 3 ti...

Page 70: ...ion containing the submerged sensor probe at the measurement temperature Table 1 Indicated value of HORIBA pH standard solutions at various temperatures pH Temp C pH 4 standard solution Phthalate pH 6 86 standard solution Neutral phosphate pH 9 standard solution Borate 0 4 01 6 98 9 46 5 4 01 6 95 9 39 10 4 00 6 92 9 33 15 4 00 6 90 9 27 20 4 00 6 88 9 22 25 4 01 6 86 9 18 30 4 01 6 85 9 14 35 4 0...

Page 71: ...4 or pH 9 standard solution 11 Wash the sensor probe 2 or 3 times in deionized water to remove any dirt then submerge the sensor probe in the transparent calibration cup 12 Press the up and down keys to set the pH value of the pH 4 or pH 9 standard solution containing the submerged sensor probe at the measurement temperature 13 Check that Measurement value has stabilized then press the ENTER key t...

Page 72: ...ns of oxidants and reductants such as tap water well water or water treated with purifying equipment there may be less responsiveness repeatability and stability in general When alkaline ion water is left for 5 minutes its ORP undergoes changes significantly Always measure alkaline ion water promptly 1 Fill a clean beaker with one bag of ORP standard powder No 160 22 or No 160 51 Add 250 mL of dei...

Page 73: ...ndard solution at various temperatures mV 7 Check that Measurement value has stabilized then press the ENTER key to start calibration 8 Calibration is finished when the message Cal complete ENT to manual cal menu appears Press the ENTER key to return to the calibration parameter selection screen Temperature 160 22 16051 5 274 112 10 271 107 15 267 101 20 263 95 25 258 89 30 254 83 35 249 76 40 244...

Page 74: ...two hours and leave it to cool in a desiccator 2 Consult the following table and weigh potassium chloride KCl then prepare three standard potassium chloride KCl solutions following the procedure below 3 Dissolve the weighed Potassium Chloride KCl in deionized water 4 Put the dissolved Potassium Chloride KCl into a 1 L measuring flask and fill to the 1 L mark with deionized water 5 Calibrate the ze...

Page 75: ...m 11 Check that Measurement value has stabilized then press the ENTER key to start calibration 12 When the message Cal complete Press ENT to Span cal appears press the ENTER key to start the first span calibration procedure 13 Wash the transparent calibration cup 2 or 3 times with deionized water then fill it to the reference line with 71 8 mS m 0 718 mS cm standard solution 14 Wash the sensor pro...

Page 76: ...p 2 or 3 times with deionized water then fill it to the reference line with 0 667 S m 6 67 mS cm standard solution 19 Wash the sensor probe 2 or 3 times in deionized water to remove any dirt then submerge the sensor probe in the transparent calibration cup 20 Press the up and down keys to set the Cond value to 0 667 S m 6 67 mS cm Calibration range 0 100 S m to 0 999 S m 1 00 mS cm to 9 99 mS cm 2...

Page 77: ...ubmerge the sensor probe in the transparent calibration cup 25 Press the up and down keys to set the Cond value to 5 87 S m 58 7 mS cm Calibration range 1 00 S m to 10 00 S m 10 0 mS cm to 100 0 mS cm 26 Check that Measurement value has stabilized then press the ENTER key to start calibration 27 Calibration is finished when the message Cal complete ENT to manual cal menu appears Press the ENTER ke...

Page 78: ...ized water in anther flask 2 Mix the two solutions and add deionized water until the total solution volume is 1000 mL and mix well Store this solution at a temperature of 25 C 3 C for 48 hours The turbidity value TURB of this solution is equivalent to 4000 NTU 3 Dilute 4000 NTU solution 5 times use a pipette to measure 50 mL of the 4000 NTU solution and pour it into a 250 mL measuring flask and fi...

Page 79: ...ave been set 5 Calibrate the zero point Wash the transparent calibration cup 2 or 3 times with deionized water then fill it to the reference line with deionized water 6 Wash the sensor probe 2 or 3 times in deionized water to remove any dirt then submerge the sensor probe in the transparent calibration cup 7 Press the up and down keys to set the Turb value to 0 0 NTU 8 Check that Measurement value...

Page 80: ...TURB value to 8 NTU or to the known concentration of the standard solution between 0 1 and 10 NTU Input range 0 NTU to 9 9 NTU U 52 U 54 or 0 NTU to 9 99 NTU U 53 13 Check that Current measurement value has stabilized then press the ENTER key to start calibration 14 When the message Cal complete Press ENT to Span cal appears press the ENTER key to start the next span calibration procedure 15 Wash ...

Page 81: ...the reference line with 800 NTU standard solution or a standard solution of known concentration 100 NTU above 21 Wash the sensor probe 2 or 3 times in deionized water to remove any dirt then submerge the sensor probe in the transparent calibration cup 22 Press the up and down keys to set the TURB value to 800 NTU or to the known concentration of the standard solution 100 NTU above Input range 100 ...

Page 82: ...w When performing span calibration with saturated dissolved oxygen water move the cable slowly up and down move the sensor probe at a rate of roughly 20 to 30 cm a second or agitate the saturated dissolved oxygen water 1 Prepare the standard solution Add about 50 g of sodium sulfite to 1000 mL of water either deionized water or tap water and stir the mixture to dissolve the sodium sulfite in it Po...

Page 83: ...calibration procedure 10 Wash the sensor probe 2 or 3 times with deionized water to remove any dirt then submerge the sensor probe in the container filled with the span solution 11 Press the up and down keys to set the DO value to the saturated dissolved oxygen value mg L of the water at that temperature or the dissolved oxygen saturation ratio 12 Check that Measurement value has stabilized then p...

Page 84: ...24 8 25 34 7 13 5 12 37 15 9 76 25 8 11 35 7 04 6 12 06 16 9 56 26 7 99 36 6 94 7 11 75 17 9 37 27 7 87 37 6 86 8 11 47 18 9 18 28 7 75 38 6 76 9 11 19 19 9 01 29 7 64 39 6 68 10 10 92 20 8 84 30 7 53 40 6 59 Temp C DO mg L Temp C DO mg L Temp C DO mg L 0 14 62 1 14 22 11 11 03 21 8 91 2 13 83 12 10 78 22 8 74 3 13 46 13 10 54 23 8 58 4 13 11 14 10 31 24 8 42 5 12 77 15 10 08 25 8 26 6 12 45 16 9 ...

Page 85: ...ted dissolved oxygen in water at various temperatures salinity 0 0 JIS K0101 Air calibration value converted from amounts of saturated dissolved oxygen in water at various temperatures salinity 0 0 ISO5814 Temp C DO mg L Temp C DO mg L Temp C DO mg L Temp C DO mg L 0 15 58 1 15 15 11 11 74 21 9 55 31 8 16 2 14 74 12 11 47 22 9 38 32 8 05 3 14 34 13 11 22 23 9 23 33 7 94 4 13 97 14 10 97 24 9 08 34...

Page 86: ... 3 Press the down key to move the cursor to Manual Calibration then press the ENTER key 4 In the parameter selection screen move the cursor to Depth then press the ENTER key 5 Press the up and down keys to set the Depth value to 0 00 m 6 Check that Measurement value has stabilized then press the ENTER key to start calibration 7 Calibration is finished when the message Cal complete ENT to manual ca...

Page 87: ...After turning the power ON check that the DO readout value has stabilized before starting measurement takes around 30 minutes If water temperature is different from air temperature by 10 C or more wait for about 20 minutes after immersing sensor probe into water U 54 U 54 Tip When on the measurement screen pressing the ENTER key enlarges the display and shows three measured values at a time Pressi...

Page 88: ...d average 5 Press the ENTER key to save the held measurement values or press the ESC key to cancel the operation U 53 Note Do not perform turbidity measurement in air as it may damage the wiper U 53 turbidity measurement follows the sequence below The measurement values are held after each sequence 1 Check that each sensor and sensor guard is mounted 2 Check that SINGLE MEASUREMENT has been select...

Page 89: ...c continuous measurement Interval measurement 1 Select the Interval measurement measurement setting see 3 2 1 Setting measurement methods page 18 2 Press the up and down keys to set the interval value to the desired value U 51 U 52 U 54 minimum interval 10 seconds U 53 minimum interval 30 seconds then press the ENTER key The measurement screen appears automatically and the system becomes ready for...

Page 90: ...st suits your requirements Displaying the data for a specified site 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPE...

Page 91: ...ied date time 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPERATION screen 3 Press the down key to move the cursor ...

Page 92: ...wn keys to display earlier data Displaying all the data 1 Press the control unit s POWER key for about 1 second to turn the power ON The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPERATION scree...

Page 93: ...3 Basic Operation 69 4 Move the cursor to All then press the ENTER key The most recently measured data is displayed 5 Press the up and down keys to display earlier data ...

Page 94: ...ration keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPERATION screen 3 Press the down key to move the cursor to Delete Data then press the ENTER key 4 Press the left key to move the cursor to YES then press the ENTER key All the data has been deleted when the indica...

Page 95: ...T screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPERATION screen 3 Press the down key to move the cursor to Data Memory Check then press the ENTER key The amount of memory in use and amount of available memory ...

Page 96: ... The MEASUREMENT screen appears after about 10 seconds Note The operation keys are designed to operate using the pad of a finger sharp objects can tear the control unit cover damaging the operation keys 2 Press the right key 3 times to display the DATA OPERATION screen 3 Press the down key to move the cursor to Calibration record then press the ENTER key The latest calibration record is displayed ...

Page 97: ... the steps below to display acquired GPS information Note Turning the power OFF erases the GPS information 1 Press the right key to switch the display to the DATA OPERATION screen 2 the down key to move the cursor to GPS Information then press the ENTER key The last GPS information acquired is displayed When received data exists When no received data exists ...

Page 98: ...s can tear the control unit cover damaging the operation keys 2 Press the left key once to display the INFORMATION screen The Sensor Information screen displays the sensor probe s status When the sensor probe is normal the display below appears When there is a sensor probe problem individual measurement parameters generate messages such as the one shown below Follow the troubleshooting information...

Page 99: ...the control unit and the computer The control unit uses the following transmission format Tip If the transmission formats do not match a communication error occurs and USB communication will not function normally After changing the transmission format restart the control unit and the computer If received data is not sent back or an error occurs after a data request has been sent adjust the program...

Page 100: ...F 1 2 3 4 1 Header 1 character 2 Command 2 characters 3 Delimiter character 1 character 4 Frame check sequence FCS 2 characters 1 0 XOR 35 ASCII code of symbol 35 2 35 XOR 82 ASCII code of R 113 3 113 XOR 68 ASCII code of D 53 4 53 XOR 64 ASCII code of symbol 117 decimal 75 hex Sets 75 35 in binary 0 0 1 0 0 0 1 1 82 in binary 0 1 0 1 0 0 1 0 XOR result 0 1 1 1 0 0 0 1 113 decimal RD AAAAAAAAAAAAA...

Page 101: ...right justified with blanks filled 5 characters 16 Parameter 2 unit 2 Unit code 1 character 17 Parameter 3 code 1 Parameter code 2 characters 18 Parameter 3 status 5 Parameter status code 1 character 19 Parameter 3 error 6 Parameter error code 1 character 20 Parameter 3 data 5 characters including decimal point right justified with blanks filled 5 characters 21 Parameter 3 unit 2 Unit code 1 chara...

Page 102: ...meter 10 code 1 Parameter code 2 characters 53 Parameter 10 status 5 Parameter status code 1 character 54 Parameter 10 error 6 Parameter error code 1 character 55 Parameter 10 data 5 characters including decimal point right justified with blanks filled 5 characters 56 Parameter 10 unit 2 Unit code 1 character 57 Parameter 11 code 1 Parameter code 2 characters 58 Parameter 11 status 5 Parameter sta...

Page 103: ...AAAAAAAAAAAAAAAAAAA XX XX XX XX CR LF 1 2 3 4 5 6 7 8 9 10 1 Header 1 character 2 Command 2 characters 3 Data specification 1 0 Start search 1 Next data item 2 Previous data item 3 Request same data again 1 character 4 Search method specification 0 All data 1 Site search 2 Date search 1 character 5 Search site 2 Upper and lowercase letters numbers periods hyphens and spaces 20 characters 6 Search ...

Page 104: ... 1 Selection made 1 character 6 Parameter 1 error 6 Parameter error code 1 character 7 Parameter 1 data 5 characters including decimal point right justified with blanks filled 5 characters 8 Parameter 1 unit 2 Unit code 1 character 9 Parameter 2 code 1 Parameter code 2 characters 10 Parameter 2 selection 0 No selection 1 Selection made 1 character 11 Parameter 2 error 6 Parameter error code 1 char...

Page 105: ...Unit code 1 character 39 Parameter 8 code 1 Parameter code 2 characters 40 Parameter 8 selection 0 No selection 1 Selection made 1 character 41 Parameter 8 error 6 Parameter error code 1 character 42 Parameter 8 data 5 characters including decimal point right justified with blanks filled 5 characters 43 Parameter 8 unit 2 Unit code 1 character 44 Parameter 9 code 1 Parameter code 2 characters 45 P...

Page 106: ... 2 characters 70 Month 01 to 12 2 characters 71 Day 01 to 31 2 characters 72 Hour 00 to 23 2 characters 73 Minute 00 to 59 2 characters 74 Second 00 to 5 2 characters 75 Longitude degrees 00 to 90 or no GPS data 2 characters 76 Longitude minutes 00 to 59 or no GPS data 2 characters 77 Longitude seconds 00 to 59 or no GPS data 2 characters 78 Unused 1 character 79 North latitude South latitude N No...

Page 107: ...rame check sequence FCS 2 characters X XX X XX CR LF 1 2 3 4 5 6 7 1 Header 1 character 2 Command 2 characters 3 Command parse failure reason 4 1 character 4 Received command 5 2 characters 5 3 Status code for probe status 5 1 character 6 Delimiter character 1 character 7 Frame check sequence FCS 2 characters 1 Frame length error 2 FCS mismatch 3 Undefined command 4 Data error 5 Data out of range ...

Page 108: ...ys 2 Remove the sensor guard and clean the sensor with tap water 3 Clean the turbidity sensor with the cleaning brush provided 4 Remove the two screws securing the COND guard and the COND guard itself and use a test tube brush to gently remove any dirt from the electrical conductivity electrode 5 Wipe off any dirt with a soft cloth If parts are very dirty clean them with neutral detergent then rin...

Page 109: ...4 Maintenance 85 7 Remove the sensor guard s guard cap wash off any dirt with tap water then put the guard cap back in place Sensor guard Guard cap Sensor probe ...

Page 110: ...ectrode parts with water Do not use sandpaper on the gold electrode Replace a membrane cap after clean metal electrodes parts Refer to 4 6 Replacing the membrane cap page 89 Reference electrode Note The pH reference internal solution is potassium chloride KCl Although KCl is harmless protective equipment such as gloves and goggles should be worn when working with it Internal solution can be dispos...

Page 111: ...m 2 months or more storage Remove a membrane cap from DO sensor and wash the gold electrode and silver electrode parts with water Wipe off the moisture before storing DO sensor in the pack Prevent internal solution seeping out of the reference chip by taping over the point of seepage with electrical tape Before storing the system remove the control unit s batteries to prevent battery leakage Pour ...

Page 112: ...r wiper and gasket and use a soft cloth to wipe off any dirt from the wiper shaft and turbidity sensor attachment If parts are very dirty use a soft cloth soaked in neutral detergent or alcohol 7 Replace the rubber wiper and gasket with new ones Coat the gasket with a thin layer of grease No 3014017718 8 Attach the new turbidity sensor and fasten it in place with the three screws 9 Perform four po...

Page 113: ...with water 2 Replace the silicone gasket with a new one 3 Pour internal solution 306 into a membrane cap with a dropper Check air bubbles in a membrane cap 4 Set up a membrane cap on an adjustable mounting Newly purchasing Undo a DO sensor from the sensor probe Silicon gasket Pour internal solution till upper line Pick a Cap up and drop it down if there is air bubbles in internal solution of it Me...

Page 114: ...ane cap NG Replace a membrane cap again Check that span calibration can be performed Note If the membrane cap is not attached correctly sensitivity may be lost or response speed may decrease with holding a membrane cap tight Twist a DO sensor Good Limited air bubbles NG Air bubbles of more than 5 mm in diameter ...

Page 115: ... Turn the power OFF wipe off any water droplets on the probe then remove the turbidity sensor Check there are no water droplets around the turbidity sensor connector then mount the sensor again If the error persists replace the turbidity sensor Turbidity sensor wiper motor error The turbidity sensor wiper is not operating Press the ESC key Check there are no obstacles near the wiper then perform t...

Page 116: ...act your nearest sales outlet TURB sensor 1 There are air bubbles on the cell 2 The cell window is dirty 3 The sensor is being affected by ambient light 4 The solution is dirty 5 The TURB sensor has failed TURB sensor 1 Shake the sensor probe vigorously 2 Clean the cell window 3 Calibrate using the calibration cup provided 4 Replace the solution with new solution 5 Replace the TURB sensor DO senso...

Page 117: ...aphragm is torn 2 There are air bubbles in the internal solution 3 The DO sensor has failed DO sensor 1 Replace the diaphragm with a new one and fill the DO sensor with new internal solution 2 Replace the diaphragm with a new one and fill the DO sensor with new internal solution 3 Replace the DO sensor Temperature sensor The temperature sensor has failed Temperature sensor Contact your nearest sal...

Page 118: ...easurement is outside the measurement range supported for that item The system must be used within its supported measurement ranges Last zero point calibration invalid pH sensor 1 The pH standard solution is contaminated 2 The pH responsive membrane is dirty 3 The concentration of the reference electrode s internal solution has changed 4 The pH responsive membrane is torn pH sensor 1 Replace the s...

Page 119: ...cell window 3 Calibrate using the calibration cup provided 4 Replace the solution with new solution 5 Replace the TURB sensor DO sensor 1 The diaphragm is torn 2 There are air bubbles in the internal solution 3 The DO sensor has failed DO sensor 1 Replace the diaphragm with a new one and fill the DO sensor with new internal solution 2 Replace the diaphragm with a new one and fill the DO sensor wit...

Page 120: ...turbidity sensor Error Cause Solution Error display Cause Solution Measurement sequence error Measurement sequence error Turn the power OFF then restart the system If the error persists have the probe repaired Out of measurement range The measurement value is outside the measurement range Samples for measurement must be within the measurement range Last calibration invalid The last calibration fai...

Page 121: ... FKM PEEK Q titanium FEP membrane POM Waterproofing standard IP 68 Control unit Outer dimensions W D H 115 mm 66 mm 283 mm 115 mm 66 mm 335 mm Mass Approx 800 g LCD 320 240 mm graphic LCD monochrome with backlight Memory data items 10000 Communicati on interface USB peripheral Batteries C size dry cells 4 Waterproofing standard IP 67 GPS unit Reception method 12 channel parallel Measurement precis...

Page 122: ...lution 0 000 mS cm to 0 999 mS cm 0 001 1 00 mS cm to 9 99 mS cm 0 01 10 0 mS cm to 99 9 mS cm 0 1 0 0 mS m to 99 9 mS m 0 1 0 100 S m to 0 999 S m 0 001 1 00 S m to 9 99 S m 0 01 Precision 2 1 of full scale midpoint of two calibration points Salinity measurement Measurement method Electrical conductivity conversion Range 0 PPT to 70 PPT parts per thousand Resolution 0 1 PPT Precision 3 PPT TDS to...

Page 123: ... NTU to 10 NTU measurement range 3 of readout or 1 NTU whichever is larger for 10 NTU to 1000 NTU measurement range 5 of read out or 1 NTU whichever is larger Turbidity sensor wiper Water depth measurement Measurement method Pressure method 2 m 10 m 30 m Range 0 m to 30 m Resolution 0 05 m Precision 2 0 3 m ORP oxidation reduction potential measurement Measurement method Platinum electrode method ...

Page 124: ...dard solution in the following cases Turbidity and conductivity after four point calibration pH and DO after two point calibration Water depth and ORP after one point calibration 3 Metallic parts are made of stainless steel Immersing in seawater may erode metallic parts ...

Page 125: ...4 For DO sensor Name Model No Description pH 4 For automatic calibration 500 mL 100 4 3200043638 Standard solution for auto calibration Also used for manual pH span calibration pH 4 For automatic calibration 4 L 140 4 3200174430 pH 7 500 mL 100 7 3200043637 Standard solution for pH zero point calibration Actual pH value is 6 86 at 25 C pH 9 500 mL 100 9 3200043636 Standard solution for pH manual s...

Page 126: ... pH and ORP sensors Wiper unit 3200169789 Rubber wiper for U 53 U 53G turbidity sensors Protective cap blk for pH sensor 3200175019 Cap attached to tip of pH sensor for sensor probe storage Rubber cap whit for DO sensor 3200175020 Cap attached to tip of DO sensor for sensor probe storage Name Model No Description Bag U 5030 3200174772 Storage bag for sensor probes and flow cell Can be carried in o...

Page 127: ...f the pH measurement may be meaningless 6 3 3 Standard solutions When measuring pH the pH meter must be calibrated using standard solution There are five kinds of standard solutions specified in JIS Z 8802 pH measurement For normal measurement two of standard solutions with pH of 4 7 and 9 are sufficient to accurately calibrate the meter For standard solutions refer to JIS Z 8802 pH measurement Ta...

Page 128: ...dard solutions at various temperatures pH Temp C pH 7 standard solution Neutral phosphate pH 10 standard solution Carbonate 0 7 12 10 32 5 7 09 10 25 10 7 06 10 18 15 7 04 10 12 20 7 02 10 06 25 7 00 10 01 30 6 99 9 97 35 6 98 9 93 40 6 97 9 89 45 6 97 9 86 ...

Page 129: ...ve electrode gold The method of measuring dissolved oxygen based on the above principle is called the Membrane Electrode Method Compared to the Chemical Analysis Method which requires complicated pre processing to alleviate the effect of reduced materials and oxidizing materials this method allows dissolved oxygen to be measured very easily It is also easy to remove undesired buildup from the silv...

Page 130: ...ol unit stays the same regardless of salt content This concept is indicated in graph form below Fig 2 Fig 2 Relationship between chlorine ion concentration and dissolved oxygen concentration In samples with a high salt concentration the solubility of oxygen is lower but as the partial pressure of oxygen does not change the value actually indicated on the control unit is higher than the actual valu...

Page 131: ...0 1000 674 0 899 0 887 899 1100 666 0 888 0 876 888 1200 658 0 877 0 866 877 1300 650 0 867 0 855 867 1400 642 0 856 0 845 856 1500 634 0 846 0 834 846 1600 626 0 835 0 824 835 1700 619 0 825 0 814 825 1800 611 0 815 0 804 815 1900 604 0 805 0 794 805 2000 596 0 795 0 785 795 2100 589 0 785 0 775 785 2200 582 0 776 0 765 776 2300 574 0 766 0 756 766 2400 567 0 756 0 746 756 2500 560 0 747 0 737 74...

Page 132: ...4 01 28 54 966 1400 13 96 28 44 962 1500 13 91 28 33 959 1600 13 86 28 23 956 1700 13 81 28 13 952 1800 13 76 28 02 949 1900 13 71 27 92 945 2000 13 66 27 82 942 2100 13 61 27 72 938 2200 13 56 27 62 935 2300 13 51 27 51 931 2400 13 46 27 41 928 2500 13 41 27 31 924 2600 13 36 27 21 921 2700 13 31 27 11 918 2800 13 26 27 01 914 2900 13 21 26 91 911 3000 13 16 26 81 907 3100 13 11 26 71 904 3200 13...

Page 133: ...22 24 89 842 5100 12 17 24 80 839 5200 12 13 24 71 836 5300 12 08 24 61 833 5400 12 04 24 52 830 5500 11 99 24 43 827 5600 11 95 24 34 824 5700 11 90 24 25 820 5800 11 86 24 16 818 5900 11 81 24 07 814 6000 11 77 23 98 811 7000 11 33 23 09 781 8000 10 91 22 22 752 9000 10 50 21 38 724 10000 10 10 20 58 696 11000 9 71 19 75 669 Altitude ft Air pressure psia Air pressure inHg Air pressure hPa ...

Page 134: ...ented by r the conductivity of the solution L S m 1 is represented as L 1 r S stands for Siemens a unit of measurement of conductance Fig 3 Definition of conductivity The most general method for measuring conductivity is based on the above principle and is called the 2 electrode method In the 2 electrode method the influence of polarization cannot be ignored for solutions with high conductivity an...

Page 135: ...3 Temperature coefficient In general the conductivity of a solution varies largely with its temperature The conductivity of a solution depends on the ionic conductivity described earlier As the temperature rises conductivity becomes higher since the movement of the ions becomes more active The temperature coefficient shows the change in of conductivity per C with a certain temperature taken as the...

Page 136: ...1 0 1095 2 50 10 13 59 1 88 8 03 0 1038 2 62 15 20 20 1 79 16 15 0 0632 3 01 20 26 77 1 68 HF 18 1 5 1 98 7 20 21 28 10 1 66 4 8 5 93 6 66 KBr 15 5 4 65 2 06 24 5 28 32 5 83 10 9 28 1 94 HCl 18 5 39 48 1 58 20 19 07 1 77 10 63 02 1 56 KCN 15 3 25 5 07 2 07 20 76 15 1 54 6 5 10 26 1 93 30 66 20 1 52 H2S04 18 5 20 85 1 21 NH4Cl 18 5 9 18 1 98 10 39 15 1 28 10 17 76 1 86 20 65 27 1 45 15 25 86 1 71 4...

Page 137: ...ous errors Conductivity and TDS are expressed by the following formulas Conductivity in SI units S m TDS g L L S m K 10 TDS g L L mS m K 100 Conductivity in the old units mS cm TDS g L L mS cm K K TDS coefficient Initial settings use the values listed in the table Page 80 that generally uses TDS coefficients For accurate TDS comparisons find the TDS coefficient from measured conductivity values Th...

Page 138: ...the affect of air bubbles U 54 uses a pulse light LED infra red diode as a light source and detect scattered light from a 90 angle The U 54 method conforms to EN ISO 7027 Fig 5 U 52 turbidity sensor Fig 6 U 53 turbidity sensor Fig 7 U 54 turbidity sensor 6 9 2 Standard solution U 50 series can perform calibration using formazin NTU or kaolin standard solutions as a turbidity standard solution Howe...

Page 139: ...ple 2 Keep the sensor immersed in the sample for about 30 minutes until the temperatures of the sensor and the sample are the same 3 Then make the zero calibration of the sensor manually 6 11 Oxidation reduction potential ORP measurement 6 11 1 Principle of ORP measurement ORP is an abbreviation for oxidation reduction potential ORP is the energy level potential determined according to the state o...

Page 140: ...tion may appear to be different HORIBA Advanced Techno s reference electrode uses Ag AgCl with 3 33 mol L KCl as inner solution According to general technical literature normal hydrogen electrodes N H E are often used as the standard electrode The relationship between N H E and the ORP that is measured using an Ag AgCl with 3 33 mol L KCl electrode is expressed by the following equation EN H E E 2...

Page 141: ...http www horiba adt jp Headquarters 31 Miyanonishi cho Kisshoin Minami ku Kyoto 601 8306 Japan TEL 81 75 321 7184 FAX 81 75 321 7291 ...

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