Horiba Scientific LAQUAact ES-71 Instruction Manual Download Page 77 | Manualshive

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Technical note

ES-71

61

As is clear from equation

②

, when a conductivity cell having a cell constant "J" of 1 m

-1

is used (in other words, when a conductivity cell having two pole plates that each have
an area "a" of 1 m

2

and are positioned parallel to each other such that the distance "l"

between the two plates is 1 m is used) the inverse of the resistance "R" of the solution
between both pole plates is the conductivity. Conductivity is defined in this way, but it
changes according to the temperature of the solution. The conductivity of a solution is
generally expressed as the value when the solution is 25°C.

Solution

Polar plates a m

2

x2

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Summary of Contents for LAQUAact ES-71

Page 1: ...Portable Conductivity Meter ES 71 Instruction Manual CODE GZ0000333612 ...

Page 2: ......

Page 3: ...mproper operation Any malfunction attributable to repair or modification by any person not authorized by HORIBA Ltd Any malfunction or damage attributable to the use in an environment not specified in this manual Any malfunction or damage attributable to violation of the instructions in this manual or operations in the manner not specified in this manual Any malfunction or damage attributable to a...

Page 4: ...see below all exist If damage or defects are found on the product contact your dealer Note The accessories are not waterproof The supplied alkaline batteries are used to check operation thus it is possible that the battery will be run out quickly Instrument Instruction manual this book Quick start Manual AAA alkaline batteries ...

Page 5: ...mulators under the Directive 2006 66 EC in the European Union The symbol might be put with one of the chemical symbols below In 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 batteries and accumulators will contribute to reducing wasteful consumption o...

Page 6: ...to 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 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 interf...

Page 7: ...ed to the most extreme situations This indicates a potentially hazardous situation which if not avoided could result in death or serious injury This indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices Without safety alert indication of hazardous situation which if not avoided could result in p...

Page 8: ...s carefully as it contains important safety messages Instrument and electrode WARNING Do not use an unspecified AC adapter Otherwise it may heat up or be ignited resulting in a fire or an accident Do not disassemble or modify the instrument Otherwise it may heat up or be ignited resulting in a fire or an accident CAUTION Do not use the RS 232C communication and the AC adapter under wet or humid co...

Page 9: ...into 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 or remodel Doing so could case fluid leakage overheating or explosion CAUTION Do not remove or scratch the external label of the battery Doing so could cause injury to hands and fingers ...

Page 10: ...d waterproof performance is maintained only when the covers are attached correctly After replacing the batteries connecting the AC adapter and using the RS 232C communication make sure that the waterproof packing attached to each cover is not deformed or discolored or has foreign matter adhering to it If the waterproof packing is deformed discolored or has foreign matter adhering to it or dust cou...

Page 11: ...not attempt to charge a non rechargeable battery Environmental conditions for use and storage Temperature 0 C to 45 C Humidity under 80 in relative humidity and free from condensation Avoid the following conditions Strong vibration Direct sunlight Corrosive gas environment Close to an air conditioner Direct wind Transportation When transporting the instrument repackage it in the original package b...

Page 12: ...ion in this manual This interprets 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 Note Reference Tip ...

Page 13: ...ation key 5 Basic operation 6 Changing the operation mode 6 Changing the measurement parameter 7 Using the backlight 8 Entering numeric values 9 Measurement 11 Preparation 12 Confirmation before starting measurement 12 Turning ON the instrument 13 Setting the date and time 15 Connecting an electrode 16 Conductivity measurement 17 Setting the instrument 18 Performing salinity calibration 23 Perform...

Page 14: ...FF 41 Performing test printing of the printer unit 42 Resetting to factory default settings 43 Maintenance 45 Maintenance and storage of the instrument 45 Environmental conditions for storage 45 Maintenance and storage of the conductivity cell 46 Checking and calibrating the conductivity cell 47 How to resolve errors or troubles 49 When an error message appears 49 ERR No 0001 Memory error 49 ERR N...

Page 15: ...r is fixed at 25 C 53 Nothing appears when the power is turned ON 53 Swelling of operation key sheet 53 Part of the display is missing 54 Appendix 55 Main specifications 55 Table of conductivity cell range 57 Table of conductivity cell range resistivity range 58 Instrument default settings 59 Technical note 60 Conductivity measurement 60 For more information 62 Options 63 ...

Page 16: ......

Page 17: ... and the main role function and basic operation method of each part Names of each part 2 Instrument 2 Display 3 Battery level display 4 Operation key 5 Basic operation 6 Changing the operation mode 6 Changing the measurement parameter 7 Using the backlight 8 Entering numeric values 9 ...

Page 18: ...or Connects the BNC connector of the electrode 4 Temperature connector Connects the temperature connector of the electrode 5 Battery cover Set batteries inside 6 Electrode hook attachment section Attach the electrode hook to carry with instrument 7 Strap attachment section Attach a strap 8 Serial connector Connects the serial cable and printer cable 9 AC power connector Connects an optional AC ada...

Page 19: ...rently set measurement parameter 7 HOLD icon Lights when the measured value display is fixed 8 SET icon Lights when numerical values are entered 9 Temperature display area Displays the measured and the set temperature 10 MTC icon Lights when the temperature setting is MTC optional temperature setting 11 Measured value set item display area Displays the measured value and the set value 12 Standard ...

Page 20: ...A Battery level display Battery level is high Battery level is a little lower Battery level is low The backlight may become unavailable Battery has run out Replace the batteries ERR No 0002 is displayed and operation is disabled ...

Page 21: ...tart calibration in the calibration mode DATA key Changes from the measurement mode to the data mode SET key Changes from the measurement mode to the setting mode POWER key Turns ON OFF the power of instrument MODE key In the measurement mode changes measurement parameters LIGHT key Turns on off the backlight ENTER key Determines the selection or setting Prints data in measurement the calibration ...

Page 22: ...er changing to the calibration data or setting mode is available 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 Function Measurement mode Performs measurement Calibration mode Performs calibration Data mode Saves data in the internal memory Displays the saved data Setting mode Performs various sett...

Page 23: ...ic operation ES 71 7 Changing the measurement parameter This instrument can measure multiple parameters In the measurement mode the measurement parameter can be changed by pressing the key key key key key ...

Page 24: ...he backlight by pressing the key If the backlight is not operated for 5 minutes it automatically turns off To turn it off manually press the key again while the backlight is on Note Turning on the backlight consumes energy and shortens battery life The backlight becomes unavailable when the battery level becomes low key ...

Page 25: ...9 Entering numeric values When entering numeric values to make various settings and set a calibration value you can change the selected digit using the keys and increment or decrement the value 0 to 9 using the keys key key ...

Page 26: ...M E M O 10 HORIBA ...

Page 27: ...ption 14 Pressing the POWER key 14 Setting the date and time 15 Connecting an electrode 16 Conductivity measurement 17 Setting the instrument 18 Setting the temperature display default ATC 18 Setting the conductivity unit default S m 19 Setting the salinity unit default PPT 20 Setting the cell constant default 1 000 100 m 1 21 Setting the temperature conversion Default ON 2 00 C 22 Performing sali...

Page 28: ...andard solution for the measurement parameter If not prepare the standard solution by yourself or purchase it Are there any items that should not be wet or stained around the instrument Depending on the operation during measurement items around the instrument could get wet or stained Secure sufficient space around the instrument and perform measurement while always paying attention to safety Are t...

Page 29: ... on 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 instrument possibly causing instrument malfunction Do not short circuit a battery Set the and side of the battery correctly When the battery has run out or the instrument will not be used for a long time r...

Page 30: ...ble with force when the connector does not match the socket When not using the AC adapter close the AC adapter connector cover While connected to the AC adapter the instrument does not have the dust proof and waterproof performance Dust or moisture could get inside the instrument possibly causing instrument malfunction Pressing the POWER key After setting the batteries or connecting the AC adapter...

Page 31: ...te and time of saved data becomes incorrect Refer to Displaying saved data page 29 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the DATE date and time setting and then press the key 4 Enter the YEAR current year and press the key 5 In the same way set the DATE month and date and TIME hour and mi...

Page 32: ...te electrode for the sample you want to measure Use the following procedure to correctly connect the electrode to the instrument 1 Insert the electrode connector by fitting its groove with the connector socket pin of the instrument 2 Turn the electrode connector clockwise by following the groove 3 Put the connector cover on the connector 4 Insert the temperature connector into the jack socket on t...

Page 33: ...t the measurement parameter Changing the measurement parameter page 7 The basic steps are the same for all measurement parameters however some settings and operations are only valid for specific measurement parameters Select the settings and perform the steps that show the mark of the parameter you want to measure Examples Perform for conductivity measurement Perform for salinity measurement Perfo...

Page 34: ...ure of the sample and displays the result on the instrument If automatic temperature measurement function is not used or the temperature connector is not connected to the instrument the temperature set in the instrument is displayed 1 Press the key to enter the setting mode 2 Select the TEMP temperature setting and then press the key 3 Press the keys to select the ATC automatic temperature measure...

Page 35: ...X fixed at mS cm Select the unit depending on your application When measuring resistivity these units correspond to Ω m Ω cm Ω cm for mS cm FIX 1 Press the key to enter the setting mode 2 Press the keys to select the UNIT COND conductivity unit setting and then press the key 3 Press the keys to select the unit and press the key key key key key key ...

Page 36: ...can select the salinity unit from PPT or Select the unit depending on your application 1 Press the key to enter the setting mode 2 Press the keys to select the UNIT SAL salinity unit setting and then press the key 3 Press the keys to select the unit and press the key key key key ...

Page 37: ...he cell constant of the conductivity cell and then press the key 4 Press the keys to enter the number of the cell constant of the conductivity cell and then press the key Note The unit used for the cell constant corresponds the unit set in Setting the conductivity unit default S m page 19 Match the unit indicated on the conductivity cell to the unit set in the instrument 10 m 1 0 1 cm 1 100 m 1 1 ...

Page 38: ...perature correctly 1 Press the key to enter the setting mode 2 Press the keys to select the TC temperature conversion setting and then press the key 3 Select ON to use this function or select OFF not to use it And then press the key When ON is selected enter the temperature coefficient and then press the key Note The temperature coefficient varies by sample Before using the temperature conversion ...

Page 39: ...e of the standard solution to be used for calibration 3 Wash the conductivity cell with pure water or deionized water and wipe it with filter paper or tissue paper Do not touch the black electrode part 4 Immerse the conductivity cell in the standard solution Immerse in the standard solution up to the hole in the lower part of the cell 5 While the conductivity cell is immersed in the standard solut...

Page 40: ...Conductivity measurement 24 HORIBA Tip You can cancel calibration by pressing the key while the HOLD icon is blinking ...

Page 41: ... the sample solution press the key Stabilization judgment starts and the HOLD icon blinks When the value is stabilized the HOLD icon changes from the blinking state to the lit state and the display is fixed to the measured value at the stable time Pressing the key again releases fixing the measured value Note The criteria of stability judgment in the automatic hold measurement are as follows Condu...

Page 42: ...M E M O 26 HORIBA ...

Page 43: ...bration data 31 Printing measured values and calibration data 33 Transferring saved data to a PC 35 Operating the instrument from an external device 36 Using the automatic data save default OFF 37 Setting the ID number default 000 39 Calibrating temperature sensor 40 Changing the automatic power off setting default OFF 41 Performing test printing of the printer unit 42 Resetting to factory default...

Page 44: ... the measurement mode except during the automatic hold measurement 1 While the data to save is displayed press the key to enter the data mode 2 Select IN data saving and press the key Saved data is displayed for 2 seconds and the IN appears automatically Note If 1000 data items have already been saved an error occurs and ERR No 0010 is dis played Copy or transfer necessary data to a PC and delete ...

Page 45: ...n the internal memory 1 Press the key to enter the data mode 2 Press the keys to select OUT display saved data and then press the key Press the keys to change the measurement data and press the keys to change the display between date and data number sample ID key key key key key key key ...

Page 46: ... the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the DATCLR delete saved data and then press the key 4 Select YES to delete the saved data or select NO to cancel deleting it And then press the key When YES is selected END appears after deletes saved data Press the key To return to the setting mode press the key key key key...

Page 47: ...ument 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the CALCLR delete calibration data and then press the key 4 Press the keys to select the measurement parameter to delete and then press the key key key key key ...

Page 48: ... to delete the calibration data or select NO to cancel deleting it And then press the key When YES is selected END appears after deletes calibration data Press the key To return to the setting mode press the key key key Selected YES and press the key ...

Page 49: ...s set to ON you cannot print out in the measurement mode Reference For details of how to display measurement data and calibration data refer to the respective section Displaying saved data page 29 Deleting calibration data page 31 The format of the printout is shown on the below when using conductivity Measurement data Printout format Description Date 2013 09 01 Measurement date Time 09 00 Measure...

Page 50: ...t hold value INST Temperature 25 0 C MTC Temperature value and temperature setting Sample 0000 Sample ID number Inst model ES 71 Instrument model Inst SN KL1TSE02 Instrument serial number Printout format Description Inst model ES 71 Instrument model Inst SN KL1TSE02 Instrument serial number CELL Cell constant 1 000 100 m 1 Calibration data Date 2013 09 01 Calibration date Time 09 00 Calibration ti...

Page 51: ...he FD 70 refer to the FD 70 instruction manual which you can download 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 close the connector cover tightly While using the RS 232C communication the instrument is not dust proof or waterproof Do not use the R...

Page 52: ... 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 reboot them The transfer format of the instrument is as follows Baud rate 2400 bps Character length 8 bits Parity None Stop bit 1 bit You can download a list of communication commands from our website I...

Page 53: ...e automatic data save function the data saved until just before the batteries run out Replace the batteries and check the data 1 Press the key to enter the setting mode 2 Press the keys to select the AT LOG automatic data save and then press the key 3 Select ON to use this function or select OFF not to use it And then press the key When ON is selected enter the period setting of seconds hours and ...

Page 54: ...ng the key starts saving the data when the setting is ON Pressing the key again stops the data saving 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 saving is stopped When you delete the data the error is cleared Deleting all saved data page 30 When data...

Page 55: ... data to be saved When the data is saved in the internal memory the ID number entered in this setting is saved together with the data 1 Press the key to enter the setting mode 2 Press the keys to select the ID ID number setting and then press the key 3 Enter the ID number to set and press the key The setting range is 000 to 2999 key key ...

Page 56: ...mode 3 Press the keys to select the MAINT maintenance setting and then press the key 4 Press the keys to select the TEMP temperature calibration setting and then press the key 5 Enter the set temperature and press the key The temperature sensor is calibrated To return to the setting mode press the key Note When initializing temperature calibration data all settings need to be initialized Perform i...

Page 57: ...g an external device 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the AT OFF automatic power off setting and then press the key 4 Select ON to use this function or select OFF not to use it And then press the key When ON is selected enter the automatic power off time and press the key The setting...

Page 58: ...e for test printing As a result of test printing if the printout is as shown below the printer unit is operating correctly 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the PRINT test print and then press the key Printing starts automatically The printer icon blinks during printing When printing ...

Page 59: ...temperature calibration data is also initialized 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the INIT initialize and then press the key 4 Select YES to initialize the settings to the factory default settings or select NO to cancel initialization And then press the key When YES is selected END a...

Page 60: ...M E M O 44 HORIBA ...

Page 61: ... 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 instrument in strong acid or alkali solution or wipe it with such solution Do not wipe the instrument with a polishing powder or other abrasive compound Environmental conditions for storage Temperature 0 C to 45 C Humi...

Page 62: ... cell is stored in a dry state the cell constant will change Store with the black electrode part immersed in pure water or deionized water or with the protective cap filled with pure water or deionized water and attached to the cell When the electrode will not be used for a long period To store the cell for a long period wash it well and attach the protective cap filled with pure water or deionize...

Page 63: ...cell with pure water or deionized water and wipe it with filter paper or tissue paper Do not touch the black electrode part 4 Immerse the conductivity cell in the prepared standard solution and read the measured value If there is a difference of 5 or more between the conductivity of the standard solution and the measured value perform calibration to use the standard solution If the difference is l...

Page 64: ...andard solution Immerse it the standard solution up to the hole in the lower part of the cell 8 While the conductivity cell is immersed in the standard solution then press the key Stabilization judgment starts and the HOLD icon blinks When the value is stabilized the HOLD icon changes from the blinking state to the lit state and calibration to the set standard solution value is performed Calibrati...

Page 65: ...n Definition of error 0001 Memory error Data cannot be read from or written to the internal memory 0002 Empty battery level The battery level is empty 0003 Electrode stability error The electric potential does not stabilize within three minutes 0009 Printer error There is a problem with the printer 0010 Memory full The number of the data saved has exceeded the limit of the internal memory 0011 Cel...

Page 66: ...t using the automatic hold function The conductivity cell is dirty Clean the conductivity cell The conductivity cell is broken Replace the conductivity cell The temperature of the sample solution is fluctuating Measure the sample solution after its temperature stabilizes Cause How to solve problem There is a problem with the printer unit connection Check the printer connection and connect the inst...

Page 67: ... conductivity cell to remove the air bubbles Cause How to solve problem There is a motor or other device causing electrical interference Measure at a place where no influence from induction is given Ground all AC powered equipment The conductivity cell is not connected correctly Connect the conductivity cell correctly Cause How to solve problem Some effects of the sample Response time may slow dow...

Page 68: ...y Connect the conductivity cell correctly Keys are locked Turn off the power remove the batteries and then turn on the power again The instrument is in HOLD state Cancel the HOLD state Instrument defect Consult your dealer Cause How to solve problem Sample is out of the measurement range Use a sample within the measurement range The conductivity cell cable is broken Replace the conductivity cell C...

Page 69: ...ture or return to the factory setting Resetting to factory default settings page 43 Instrument defect Consult your dealer Cause How to solve problem Power is not supplied Insert batteries or connect the AC adapter option Battery polarity is reversed Insert the batteries with the polarity correctly oriented Battery life is low Replace the batteries or connect the AC adapter option Instrument defect...

Page 70: ... be set to full screen display Follow the steps below to check the display 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Use the keys to select the LCD full screen display and then press the key The display changes to full screen display Check if part of the display is missing To return to the setting mode press the key ...

Page 71: ...em Contents Model ES 71 Measurement parameters Conductivity salinity TDS resistivity temperature 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 50 60 Hz 0 37 A option Dimensions Approx 67 80 28 42 170 mm The figures in parentheses are maximum thickne...

Page 72: ...nt 1000 m 1 0 00 mS m to 200 0 S m Resolution 0 05 of full scale Repeatability 0 5 1 digit of full scale Salinity Measuring principle Conversion from conductivity value Measuring range Display range 0 00 to 4 00 Resolution 0 01 TDS Measuring principle Conversion from conductivity value Measuring range Display range 0 01 mg L to 100 g L Resolution 0 01 mg L Resistivity Measuring principle Conversio...

Page 73: ...to 199 9 S m 2 00 to 19 99 S m 0 200 to 1 999 S m 20 0 to 199 9 mS m 2 00 0 00 to 19 99 mS m 0 200 0 000 to 1 999 mS m 0 0 to 199 9 µS m Range Cell constant 10 cm 1 1 cm 1 0 1 cm 1 0 200 to 1 999 S cm 20 0 to 199 9 mS cm 2 00 to 19 99 mS cm 0 200 to 1 999 mS cm 20 0 0 0 to 199 9 µS cm 2 00 0 00 to 19 99 µS cm 0 000 to 1 999 µS cm ...

Page 74: ... m 1 0 200 to 1 999 MΩ m 20 0 to 199 9 kΩ m 2 00 to 19 99 kΩ m 0 200 to 1 999 kΩ m 20 0 0 0 to 199 9 Ω m 2 00 0 00 to 19 99 Ω m 0 000 to 1 999 Ω m Range Cell constant 10 cm 1 1 cm 1 0 1 cm 1 20 0 to 199 9 MΩ cm 2 00 to 19 99 MΩ cm 0 200 to 1 999 MΩ cm 20 0 to 199 9 kΩ cm 2 00 0 00 to 19 99 kΩ cm 0 200 0 000 to 1 999 kΩ cm 0 0 to 199 9 Ω cm ...

Page 75: ...t value 0 0 C to 100 0 C 25 0 C Auto power off ON OFF OFF Auto power off time 1 min to 30 min 30 min Sample ID 000 to 2999 000 Auto data memory ON OFF OFF Auto data memory time 2 seconds to 24 hours 2 seconds Conductivity Cell constant 0 700 to 1 300 10 m 1 100 m 1 1000 m 1 1 000 100 m 1 Temperature conversion ON OFF ON Temperature coefficient 0 00 C to 10 00 C 2 00 C Unit S m S cm mS cm FIX S m S...

Page 76: ...ve and negative ion in the solution will migrate toward the oppositely charged pole The result is that current flows through the solution by means of ion con ductivity When this occurs resistance R is in inverse proportion to the area a of the pole plates as is the case with metal and other conductors and is proportional to the dis tance l between the two pole plates These relationships are expres...

Page 77: ...nd are positioned parallel to each other such that the distance l between the two plates is 1 m is used the inverse of the resistance R of the solution between both pole plates is the conductivity Conductivity is defined in this way but it changes according to the temperature of the solution The conductivity of a solution is generally expressed as the value when the solution is 25 C Solution Polar...

Page 78: ...e presents the knowhow we have cultivated over many years for example how temperature affects measured values and what to do when you want to measure various samples By registering as a user you can download sample software refer to technical documents and receive the newsletter each of which contains useful information on water quality measurement We look forward to your registration ...

Page 79: ... sample you want to measure For details refer to the catalogue or our website or contact your dealer Part name Part number Remarks AC adapter Cable UL 120 V 3014031951 AC adapter Cable EU 230 V 3014031952 Plain paper printer Printer USA 120 V 3014030146 Printer cable sold separately Printer EU 230 V 3014030147 Printer cable 3014030148 1 5 m Roll paper 3014030149 20 rolls set Ink ribbon 3014030150 ...

Page 80: ...M E M O 64 HORIBA ...

Page 81: ...2 Miyanohigashi Kisshoin Minami ku Kyoto 601 8510 Japan http www horiba com ...

Page 82: ......

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