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Technical note

97

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Technical note

●

pH standard solution values at various temperatures

< USA >

< NIST (pH 2, 4, 12 are common) >

Tip

The differences between NIST and USA standard solutions are a different pH 7 value, and
the use of pH 10 standard solution instead of pH 9 standard solution in USA.

Note

Calibration is performed using Nernst's equation with the above values.

Temp.

(

°C

)

pH 2

Oxalate

pH 4

Phthalate

pH 7

Neutral

phosphate

pH 10

Carbonate

pH 12

Saturated calcium

hydroxide

solution

0

1.666

4.003

7.119

10.318

13.423

5

1.668

3.999

7.086

10.245

13.207

10

1.670

3.998

7.058

10.178

13.003

15

1.672

3.999

7.035

10.117

12.810

20

1.675

4.002

7.015

10.061

12.627

25

1.679

4.008

7.000

10.011

12.454

30

1.683

4.015

6.988

9.965

12.289

35

1.688

4.024

6.979

9.925

12.133

40

1.694

4.035

6.973

9.888

11.984

45

1.700

4.047

6.969

9.856

11.841

Temp.

(

°C

)

pH 7

Neutral

phosphate

pH 9

Borate

0

6.984

9.464

5

6.951

9.395

10

6.923

9.332

15

6.900

9.276

20

6.881

9.225

25

6.865

9.180

30

6.853

9.139

35

6.844

9.102

40

6.838

9.068

45

6.834

9.038

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Содержание LAQUAact-PH110

Страница 1: ...Instruction Manual pH ORP Ion Meter LAQUAact PH110 LAQUAact PH120 LAQUAact PH130 Portable pH Water Quality Meter...

Страница 2: ......

Страница 3: ...ction 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 man...

Страница 4: ...this case it satisfies the requirements of the Directive 2006 66 EC for the object chemical This product should not be disposed of as unsorted household waste Your correct disposal of WEEE waste batt...

Страница 5: ...o provide 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...

Страница 6: ...tal protection use period in years It does not indicate a product guarantee period It guarantees that the product will not cause environment pollution nor serious influence on human body and property...

Страница 7: ...ccordance with SJ T 11364 GB T 26572 Denotes that the amount of the hazardous substance contained in all of the homogeneous materials used in the component is below the limit on the acceptable amount...

Страница 8: ...riellen Umgebung k nnen die elektromagnetischen St rungen eventuell zu Produktfehlfunktionen f hren Um dieses Produkt unter solchen Umst nden verwen den zu k nnen muss der Benutzer ggf angemessene Ma...

Страница 9: ...sono soggetti a modifiche senza preavviso Ambiente di installazione Questo prodotto non stati progettati per essere utilizzati in ambienti industriali secondo la norma EN61326 1 In un ambiente industr...

Страница 10: ...10 1 Categor a de sobretensi n II Nivel de contaminaci n 2 POL Informacje dotycz ce bezpiecze stwa Przed przyst pieniem do u ytkowania tego produktu nale y dok adnie zapozna si z niniejsz instrukcj ab...

Страница 11: ...gd Installatieomgeving Dit product is niet bedoeld voor gebruik in een industri le omgeving zoals gedefinieerd in EN 61326 1 In een industri le omgeving kan de elektromagnetische interferentie de werk...

Страница 12: ...ul chemicals Some ion electrodes are used with hazardous standard solutions Handle them with care If the internal solution comes in contact with the skin wash it off immediately If it gets into the ey...

Страница 13: ...to the eyes do not rub the eyes rinse with clean water immediately and then consult a doctor Contact with alkaline fluid could cause blindness Do not put batteries in a fire expose to heat disassemble...

Страница 14: ...he instrument does not have the dust proof and waterproof performance The dust proof and waterproof performance is maintained only when the covers are attached correctly After replacing the batteries...

Страница 15: ...d nickel metal hydride battery together with a partially charged battery Do not attempt to charge a non rechargeable battery Environmental conditions for use and storage Temperature 0 C to 45 C Humidi...

Страница 16: ...s the necessary points for correct operation and notifies the important points for handling the product This indicates the part where to refer for information This indicates reference information Desc...

Страница 17: ...key 7 Basic operation 8 Function layer 8 Changing the operation mode 11 Switching the displays 12 Changing the measurement parameter 12 Using the backlight 13 Entering numeric values 13 Saving measur...

Страница 18: ...ctions 52 Displaying saved data 52 Using the automatic data save 53 Deleting all saved data 56 Measurement setting 58 Displaying the latest calibration and inspection data 58 Using the calibration int...

Страница 19: ...nance and storage of the ion electrode 85 How to Resolve Errors or Troubles 87 When an error message appears 87 ERR No 0001 Memory error 87 ERR No 0002 Empty battery level 88 ERR No 0004 Asymmetric po...

Страница 20: ...thing appears when the power is turned ON 94 Swelling of operation key sheet 94 Part of the display is missing 94 Appendix 95 Main specifications 95 Instrument default settings 96 Technical note 97 pH...

Страница 21: ...ch part Names of each part 2 Instrument 2 Identification of manufacturing date 3 Display 4 Operation key 7 Basic operation 8 Function layer 8 Changing the operation mode 11 Switching the displays 12 C...

Страница 22: ...QUAact PH130 only 4 Temperature connector T Connects the temperature connector T of the electrode Channel 2 LAQUAact PH130 only 5 Battery cover Set batteries inside 6 Electrode hook attachment section...

Страница 23: ...he instrument Third number from the left in the MFG No indicates manufacturing year Forth alphabet from the left in the MFG No indicates manufacturing month The alphabet is assigned to month according...

Страница 24: ...rror No 5 Data No icon Displays the data No 6 Measurement parameter display area Displays the currently set measurement parameter This is displayed in the main screen and the sub screen respectively 7...

Страница 25: ...the sub screen respectively No Name Function 1 Status icon Displays the current operation mode electrode status printer or PC connection status and remaining battery level 2 Direction key icon Displa...

Страница 26: ...en calibrating pH standard solution the corresponding icon lights 13 Unit display area Displays the unit for the measurement parameter and the display item No Name Function Battery level is high Batte...

Страница 27: ...repeatability inspection after calibration is complete POWER key Turns ON OFF the power of instrument MODE key In the measurement mode changes measurement parameters LIGHT key Turns on off the back li...

Страница 28: ...ing mode is shown as below dX and PXX indicates the program number which is shown in the screen of the instrument Data mode Screen Layer Description d1 DATA OUT Saved data display d2 AUT LOG Automatic...

Страница 29: ...ings LAQUAact PH130 only P21 UNIT Selection of unit g L mg L g L mmol L mol L P22 CHRG Ion valency setting 1 2 2 1 P23 CAL DATA Calibration data display P24 CAL CLR Deletion of calibration data P3 TC...

Страница 30: ...es the program number and is shown on the screen of instrument The indication of screen shown in this manual is based on LAQUAact PH130 The program numbers of LAQUAact PH110 and LAQUAact PH120 are dif...

Страница 31: ...tion mode data mode or setting mode is possible only from the measurement mode When changing to a different mode first change to the measurement mode and then change to the desired mode Icon Name Func...

Страница 32: ...show the desired channel measurement parameter on the main screen This function is available for LAQUAact PH130 Changing the measurement parameter This instrument measures multiple parameters For meas...

Страница 33: ...y again while the backlight is on This function is available for LAQUAact PH120 and LAQUAact PH130 Note Turning on the backlight consumes energy and shortens battery life The backlight becomes unavail...

Страница 34: ...e instrument is in the measurement mode 1 Press the key while the data to save is displayed The saved data is displayed for 2 seconds and then the display returns to the previous screen automatically...

Страница 35: ...electrode 20 pH measurement 21 Setting the instrument 21 Performing calibration 25 Performing measurement 33 Saving measured value 34 mV ORP measurement 35 Switching between absolute value and relativ...

Страница 36: ...solution for the measurement parameter If not prepare the standard solution according to your applications Are there any items that should not be wet or stained around the instrument Depending on the...

Страница 37: ...n the battery cover on the back of the instrument clockwise to lock the battery cover Note Do not replace the batteries in a dusty place or with wet hands Dust or moisture could get inside the instrum...

Страница 38: ...strument 2 Insert the AC adapter cable by fitting with the AC adapter jack of in the instrument 3 Insert AC adapter into the electrical socket Note Do not insert the cable with force when the connecto...

Страница 39: ...second and the screen displays the version number of software and the model and then displays the measurement mode Note Do not hold down the key after the power of the instrument is turned ON Do not u...

Страница 40: ...of the instrument 2 Turn the electrode connector clockwise by following the groove 3 Put the connector cover on the connector 4 When using a combination electrode equipped with a temperature sensor in...

Страница 41: ...and USA However the function does not convert the pH value according to the temperature characteristics of each sample and you must record the obtained value together with the sample temperature valu...

Страница 42: ...ate the temperature sensor refer to Calibrating temperature sensor page 63 3 In the case of MTC enter the temperature to be compensated for and press the key to confirm To return to the measurement mo...

Страница 43: ...om 3 types USA NIST and CUST the standard solution other than USA and NIST Set according to the standard solution to be used CUST can only be selected on LAQUAact PH120 and LAQUAact PH130 1 Press the...

Страница 44: ...ard solution type Description USA USA specification Set to use the standard solution of the USA specification Standard solution icon 1 68 4 01 7 00 10 01 12 45 NIST NIST specification Set to use the s...

Страница 45: ...standard solution setting is USA or NIST This section describes the procedure for two point calibration of USA standard pH 4 and 7 as an example of general calibration 1 Clean the pH electrode with pu...

Страница 46: ...H 4 standard solution As with the step 3 immerse at least 3 cm from the tip of the pH electrode 7 Press the key to enter the calibration mode Stability judgment automatically starts and the pH icon bl...

Страница 47: ...solution is updated The calibration values are retained until next calibration is performed the data is deleted or buffer setting is changed For the procedure for deleting the calibration data refer...

Страница 48: ...he internal solution filler port of the pH electrode If calibration is performed with the port closed the internal solution does not flow and the measurement value is not stable Make sure to keep the...

Страница 49: ...pH measurement 29 6 Press the key to start inspection REP repeatability is shown and display changes to the measurement mode Stabilized key key...

Страница 50: ...e at least 3 cm from the tip of the pH electrode in the pH 7 standard solution In order for the internal solution to flow into the standard solution make sure to immerse the liquid junction in the sta...

Страница 51: ...omatically starts and the pH icon blinks until the measured value stabilizes When the measured value stabilizes the pH icon changes from the blinking state to the lit state 8 Enter the standard soluti...

Страница 52: ...leting the calibration data refer to Delet ing calibration data page 61 It is recommended that you should clear the previous calibration data before the calibration in order to perform more accurate c...

Страница 53: ...paper 2 Open the internal solution filler port of the pH electrode If calibration is performed with the port closed the internal solution does not flow and the measurement value is not stable Make sur...

Страница 54: ...ability judgment in the auto hold measurement are as follows Potential variation for 10 seconds is less than 1 mV 0 015 pH equivalent and temperature variation is less than 2 0 C If the measured value...

Страница 55: ...between absolute value and relative value There are two types of measurement mode for the mV and ORP measurement the absolute value measurement and the relative value measurement Absolute value measur...

Страница 56: ...2 Open the internal solution filler port of the electrode If calibration is performed with the port closed the internal solution does not flow and the measurement value is not stable Make sure to keep...

Страница 57: ...measured value is out of the measurement range page 93 Note that when measuring the ORP of a sample solution that has extremely low concentrations of oxidants and reductants such as tap water well wat...

Страница 58: ...Press the key in the measurement mode to change the measurement parameter to ION Measurement of ion concentration is only possible on LAQUAact PH130 Note Ion concentration varies depending on the sam...

Страница 59: ...ent If automatic temperature measurement is not used or a temperature connector T is not connected to the instrument with ATC set arbitrary temperature set in the instrument is displayed This cannot b...

Страница 60: ...Ion concentration measurement 40 3 In the case of MTC enter the temperature to be compensated for and press the key to confirm To return to the measurement mode press the key key Enter a number key...

Страница 61: ...on concentration from either mg L g L mmol L mol L or g L 1 Press the key to change to the setting mode 2 Press the keys to Select ION and then press the key 3 Press the keys to Select UNIT ion concen...

Страница 62: ...ending on the unit and ion valency If not incorrect measurement values may result After changing the unit or ion valency of the sample change the setting as appropriate for the ion valency of the samp...

Страница 63: ...e type of ion the ion valency must be set Select the calculation formula according to the type of sample solution to be measured 1 Press the key to enter the setting mode 2 Press the keys to Select IO...

Страница 64: ...tion as the calibration calculation varies depending on the unit and ion valency If not incorrect measurement values may result After changing the unit or ion valency of the sample change the setting...

Страница 65: ...the instrument can be used for ion concentration measurement However calibration must be performed for each channel because each channel has its own calibration data Prepare at least 100 mL of the sta...

Страница 66: ...he measurement value is stabilized When the value is stabilized the ION icon changes from the blinking state to the lit state 5 Press the keys to enter the ion concentration value of the standard solu...

Страница 67: ...alibration mode Stability judgment starts and the ION icon blinks until the measurement value is stabilized When the value is stabilized the ION icon changes from the blinking state to the lit state 9...

Страница 68: ...e data is deleted For the procedure for deleting the calibration data refer to Deleting calibration data page 61 It is recommended that you should clear the previous calibration data before the calibr...

Страница 69: ...cient volume may cause the measured value to drift 1 Clean the ion electrode with pure water or deionized water and wipe it with filter paper or tissue paper Do not directly touch the responsive membr...

Страница 70: ...C If the measured value is below the display range Ur under appears If the measured value is above the display range Or over appears For details on the action to take refer to The measured value is o...

Страница 71: ...m default OFF 60 Deleting calibration data 61 Temperature settings 63 Calibrating temperature sensor 63 General settings 65 Setting the auto stability and auto hold function 65 Changing the automatic...

Страница 72: ...function is available for LAQUAact PH120 and LAQUAact PH130 1 Press the key to enter the data mode 2 Press the keys to select DATA OUT display saved data and then press the key Press the keys to chan...

Страница 73: ...ies run out while using the automatic data save function the data saved until just before the batteries run out Replace the batteries and check the data This function is available for LAQUAact PH120 a...

Страница 74: ...54 4 Enter the period of saving in minutes and press the key A period from 0 min to 3600 min can be set 0 indicates no period 5 Press the key to enter the measurement mode Enter a number key Enter a...

Страница 75: ...ing process During automatic data saving measurement data is displayed for one second each time a measurement takes place When more than 1000 data items are saved ERR No 0010 is displayed and data sav...

Страница 76: ...ll data saved in the internal memory Data cannot be deleted selectively Copy or transfer the data to a PC for storage if necessary 1 Press the key to enter the data mode 2 Press the keys to Select DAT...

Страница 77: ...lete the saved data or select NO to cancel deleting it And then press the key to confirm When YES is selected END appears after deletion is complete To return to the measurement mode press the key Sel...

Страница 78: ...You can display the latest pH or ion calibration data and repeatability inspection data ion LAQUAact PH130 only 1 Press the key to enter the setting mode 2 Press the keys to select the component to c...

Страница 79: ...to REP repeatability by pressing the keys Tip The asymmetry potential can be displayed only for pH calibration data When multiple point calibration more than two points is performed the results of mul...

Страница 80: ...orming calibration clears the error This function is available for LAQUAact PH120 and LAQUAact PH130 1 Press the key to enter the setting mode 2 Press the keys to select pH calibration interval settin...

Страница 81: ...ation data set in the instrument 1 Press the key to enter the setting mode 2 Press the keys to select the component to confirm the data from pH or ION and press the key 3 Press the keys to Select CAL...

Страница 82: ...key to confirm selection When YES is selected and is pressed END appears after deletion is complete To return to the measurement mode press the key Tip When the key is pressed for more than 3 seconds...

Страница 83: ...ature connector into the temperature connector T on the instrument 2 Immerse the electrode into the solution until the temperature sensor is immersed 3 Press the key to enter the setting mode 4 Press...

Страница 84: ...hen initializing temperature calibration data all settings need to be initialized Perform initialization by referring to Resetting to factory default settings page 69 When initialization is performed...

Страница 85: ...ays instantaneous value Auto hold mode displayed as AH When the criterion for stability judgment is fulfilled during measurement the component icon and the HOLD icon light and the measured value is fi...

Страница 86: ...d And then press the key to confirm selection To return to the measurement mode press the key Note In the calibration mode the auto stability mode always works Tip The stability judgment criteria are...

Страница 87: ...tion for a certain period of time This function is disabled during automatic data memory saving or remote operation using an external device 1 Press the key to enter the setting mode 2 Press the keys...

Страница 88: ...ngs 68 4 Enter the automatic power off time and press the key The setting range is 0 min to 30 min 0 indicates the automatic power off is OFF To return to the measurement mode press the key key Enter...

Страница 89: ...nd time and the saved data are not deleted Make sure there will be no problems before using this function When this function is used the temperature calibration data is also initialized 1 Press the ke...

Страница 90: ...ry default settings or select NO to cancel initialization And then press the key to confirm selection When YES is selected END appears after the settings are initialized and then the instrument is aut...

Страница 91: ...incorrect the date and time of saved data becomes incorrect This function is available for LAQUAact PH120 and LAQUAact PH130 1 Press the key to enter the setting mode 2 Press the keys to Select GEN g...

Страница 92: ...al settings 72 6 Press the key to confirm To return to the setting mode press the key key Enter a number and press key Enter a number and press key Enter a number and press key Enter a number and pres...

Страница 93: ...roblem you can perform test printing Connect the instrument and a printer correctly and perform the following procedure for test printing As a result of test printing if the printout is as shown below...

Страница 94: ...the keys to Select PRINT test print and then press the key Printing starts automatically When printing ends the printer icon lights and END appears Press the key or key To return to the measurement mo...

Страница 95: ...ou want to print Use the printer cable to connect the printer unit with the instrument beforehand If the automatic data memory is set to ON you cannot print out in the measurement mode Measurement dat...

Страница 96: ...LAQUAact PH130 Instrument model Inst SN KL1TSE10 Instrument serial number Elect status GOOD Electrode status based on calibration result Memory Num 0001 Data number Date 2016 01 01 Measurement date Ti...

Страница 97: ...emperature setting pH 6 86 7 6 mV Measurement potential 25 1 C ATC Temperature value and temperature setting Inspection before use pH 6 85 7 8 mV Measurement potential at time of repeatability inspect...

Страница 98: ...lectrode status based on calibration result Sensitivity Sensitivity of calibration data 1000 mg L 100 mg L 99 9 Calibration data Date 2016 01 01 Calibration date Time 09 00 Calibration time 1000 mg L...

Страница 99: ...d from our website as well The required PC specifications and recommended PC specifications for using the FD 70 are shown in the following table Note If you are not using the RS 232C communication clo...

Страница 100: ...occurs and the online mode does not start up and as a result RS 232C communication cannot be performed Also when the transfer format is changed turn OFF the power of the instrument and PC and then re...

Страница 101: ...to remove the dirt wipe it gently with a cloth moistened with alcohol The instrument is made of solvent resistant materials but that does not mean it is resistant to all chemicals Do not dip the inst...

Страница 102: ...atmosphere Follow the steps below to properly store the electrode 1 Clean the electrode well with pure water or deionized water to remove sample completely and close the internal solution filler port...

Страница 103: ...ter Daily storage of the electrode If the electrode becomes dry the response will slow Store in a moist atmosphere Follow the steps below to properly store the electrode 1 Wash the electrode well with...

Страница 104: ...ution If the surface of the metal electrode is dirty wipe it gently with a soft material such as absorbent cotton moistened with alcohol or a neutral cleaning solution or immerse in dilute nitric acid...

Страница 105: ...e immerse it in the solution indicated below depending on the electrode type When the electrode will not be used for a long period To store the electrode for a long period follow the electrode storage...

Страница 106: ...M E M O...

Страница 107: ...empty 0004 Asymmetric potential error The asymmetric potential of the electrode is out of the range of 45 mV 0005 Electrode sensitivity error The electrode sensitivity is either 105 or more or 85 or l...

Страница 108: ...uating Replace the internal solution in the reference electrode The electrode is not connected correctly Connect the electrode correctly Electrode is not immersed enough to cover liquid junction The e...

Страница 109: ...problem with the standard solution Use new standard solution Settings about the standard solution do not match the instrument Check if the instrument settings and the specifications of the standard s...

Страница 110: ...ber of days of the calibration interval or longer Perform calibration The calibration interval alarm is ON and calibration has not been performed Perform calibration Cause How to solve problem There i...

Страница 111: ...ence electrode until it is higher than the level of the sample Cause How to solve problem There is a motor or other device causing electrical interference Measure at a place where no influence from in...

Страница 112: ...ortant to select an electrode that is appropriate for the sample Consult your dealer To confirm an electrode that is appropriate for the sample check the pH electrode selection guide in our catalogue...

Страница 113: ...de must be immersed up to the liquid junction As a guide immerse to at least 3 cm from the tip of the electrode The electrode cable is broken Replace the electrode Calibration is not performed or perf...

Страница 114: ...AC adapter option Instrument defect Consult your dealer Cause How to solve problem Using the instrument at high elevation or other location where the air pressure is different from sea level To elimi...

Страница 115: ...ure Operating ambient temperature humidity 0 C to 45 C 80 or less in relative humidity no condensation Power AAA alkaline batteries LR03 or AAA Ni MH rechargeable batteries 2 AC adapter 100 V to 240 V...

Страница 116: ...g L mmol L mol L Resolution Valid numbers 4 digits Accuracy 0 8 of full scale Measurement parameter Item Selection item Setting range Default values Common Auto hold AS AH AS Temperature input value...

Страница 117: ...l phosphate pH 10 Carbonate pH 12 Saturated calcium hydroxide solution 0 1 666 4 003 7 119 10 318 13 423 5 1 668 3 999 7 086 10 245 13 207 10 1 670 3 998 7 058 10 178 13 003 15 1 672 3 999 7 035 10 11...

Страница 118: ...easure For details refer to the catalogue or our website or contact your dealer Part name Part number Remarks Plain paper printer Printer USA 120 V 3014030146 Printer cable sold separately Printer EU...

Страница 119: ...t jp For any questions regarding this product please contact your local agency or inquire from the following website http global horiba com contact_e index htm 31 Miyanonishi cho Kisshoin Minami ku Ky...

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