horiba LAQUAact-PD110 Instruction Manual
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horiba LAQUAact-PD110 Instruction Manual

Handheld ph/orp/dissolved oxygen meter
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Handheld pH/ORP/Dissolved Oxygen Meter
LAQUAact-PD110
Instruction Manual
CODE:GZ0000427800

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Summary of Contents for horiba LAQUAact-PD110

  • Page 1 Handheld pH/ORP/Dissolved Oxygen Meter LAQUAact-PD110 Instruction Manual CODE:GZ0000427800...
  • Page 3 HORIBA, Ltd. warrants that the Product shall be free from defects in material and workmanship and agrees to repair or replace free of charge, at option of HORIBA, Ltd., any malfunctioned or damaged Product attributable to responsibility of HORIBA, Ltd. for a period of two (2) year from the delivery unless otherwise agreed with a written agreement.
  • Page 4 Contact your supplier for information on applicable disposal methods. ●Authorised Representative in EU HORIBA UK Limited 2 Dalston Gardens, Stanmore, Middx HA7 1BQ, UK...
  • Page 5 Regulations ■ FCC rules Any changes or modifications not expressly approved by the party responsible for compliance shall void the user's authority to operate the equipment. ●WARNING This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
  • Page 6 For your safety ■ Hazard classification and warning symbols Warning messages are described in the following manner. Read the messages and follow the instructions carefully. ●Hazard classification 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.

  • Page 7: Safety Precautions

    For your safety ■ Safety precautions This section provides precautions for using the product safely and correctly and to prevent injury and damage. The terms of DANGER, WARNING, and CAUTION indicate the degree of imminency and hazardous situation. Read the precautions carefully as it contains important safety messages.
  • Page 8 For your safety ●Battery WARNING Keep batteries out of reach of children. If someone accidentally swallows a battery, consult a doctor immediately. If alkaline fluid from a battery gets 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.

  • Page 9: Product Handling Information

    For your safety ■ Product handling information ●Operational precautions (instrument) ・Only use the product including accessories for their intended purpose. ・The function that measuring dissolved oxygen of the instrument is only usable for measuring under water. Do not use this function for the application except described above.
  • Page 10 For your safety ・If the power supply is interrupted while measurement data is being saved in the instrument, the data could be corrupted. ・A NiMH rechargeable battery can be used in this instrument, but the battery used in the instrument cannot be charged using the AC adapter. ●Operational precautions (battery) ・Do not short circuit a battery.

  • Page 11: Description In This Manual

    Manual information ■ Description in this manual Note This interprets the necessary points for correct operation and notifies the important points for handling the product. Reference This indicates the part where to refer for information. This indicates reference information.
  • Page 12 M E M O...

  • Page 13: Table Of Contents

    Contents Preface ................... I ■ Hazard classification and warning symbols ....IV ■ Safety precautions ............. V ■ Product handling information ......... VII ■ Description in this manual..........IX Part names and basic operation......... 1 ■ Names of each part .............2 ●...
  • Page 14 Contents ● Saving the measured value ............. 34 ■ mV, ORP measurement .............35 ● Switching between absolute value and relative value ..35 ● Performing measurement ............36 ● Saving the measured value ............. 37 ■ Dissolved oxygen measurement........38 ● Setting the instrument.............. 38 ●...
  • Page 15 Contents ● Printing measured values and calibration data .....74 ● Transferring saved data to a PC ..........77 ● Operating the instrument from an external device ....78 Maintenance ............... 79 ● Contact for maintenance ............79 ● Maintenance and storage of the instrument......79 ●...
  • Page 16 Contents ● Nothing appears when the power is turned ON..... 93 ● Swelling of operation key sheet ..........93 ● Part of the display is missing ..........93 Appendix................95 ■ Main specifications............95 ■ Instrument default settings..........97 ■ Technical note..............98 ●...

  • Page 17: Part Names And Basic Operation

    Part names and basic operation This section describes the name of each part and the main role, function, and basic operation method of each part. ■ Names of each part..............2 ● Instrument....................2 ● Display....................4 ● Operation key ..................6 ■...

  • Page 18: Names Of Each Part

    Names of each part ■ Names of each part ● Instrument Name Function Display Displays the measured value and set value and so on. Operation keys Used for instrument operation. Electrode connector Connects the BNC connector of the electrode. Temperature Connects the temperature connector (T) connector (T) of the electrode.
  • Page 19 Names of each part • Identification of manufacturing date Manufacturing date can be identified from MFG No. described in the ID label on the backside of the instrument. Third number from the left in the MFG No. indicates manufacturing year. Forth alphabet from the left in the MFG No.

  • Page 20: Display

    Names of each part ● Display Two electrodes can be connected to measure two parameters at the same time with this instrument. The display is divided into the main screen and the sub screen, and you can select the channel displayed on the main screen. The selected channel can be identified with an icon.
  • Page 21 Names of each part Name Function Standard solution When calibrating with pH standard solution, the calibration history icon corresponding icon lights. Displays the unit for the measurement parameter and the display item. Unit display area This is displayed in the main screen and the sub screen, respectively.

  • Page 22: Operation Key

    Names of each part ● Operation key Name Function Changes the operation mode to the measurement mode during operation in a different mode. MEAS key Releases the fixed measurement value mode in the auto hold mode. Changes from the measurement mode to the calibration CAL key mode.

  • Page 23: Basic Operation

    Basic operation ■ Basic operation ● Function layer The function layer of the data mode and setting 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...
  • Page 24 Basic operation • Setting mode <Channel 1> Screen Layer Description P1: PH pH measurement settings P11: BUF Selection of standard solution type for calibration: USA, NIST, CUST P12: CAL DATA Calibration data display P13: CAL ALR Calibration alarm setting: 1 day to 400 days P14: CAL CLR Deletion of calibration data P2: TEMP...
  • Page 25 Basic operation <Channel 2> Screen Layer Description P1: DO DO measurement settings P11: SAL Salinity correction setting P12: PRES KPA Air pressure correction setting P12: CAL DATA Calibration data display P14: CAL CLR Deletion of calibration data P2: TEMP Temperature setting Selection of temperature conversion or display : ATC, MTC...

  • Page 26: Changing The Operation Mode

    Basic operation ● Changing the operation mode Change the operation mode from four available modes depending on the purpose of use. The status icon indicates the current mode. You can change the operation mode using the corresponding key. However changing to the calibration mode, data mode, or setting mode is possible only from the measurement mode.

  • Page 27: Switching The Displays

    Basic operation ● Switching the displays Switch the channel between the main screen and the sub screen. In the measurement mode, pressing the keys can switch the channels between the main screen and the sub screen. When performing calibration or setting, switch the display to show the desired channel (measurement parameter) on the main screen.

  • Page 28: Changing The Measurement Parameter

    Basic operation ● Changing the measurement parameter This instrument can measure multiple parameters. For measurement, an electrode corresponding to the measurement parameter is required. In the measurement mode, the measurement parameter can be changed by pressing the key. This operation is available for the channel that is shown on the main screen. <...

  • Page 29: Using The Backlight

    Basic operation ● Using the backlight When it is difficult to see the screen in a dark location, you can turn on the backlight by pressing the key. If the backlight is not operated for 5 minutes, it automatically turns off.

  • Page 30: Saving Measurement Data In The Internal Memory

    Basic operation ● Saving measurement data in the internal memory Up to 1000 data items measured by the instrument can be stored in the internal memory. Saving the measurement data is possible only when the instrument is in the measurement mode. 1.

  • Page 31: Measurement

    Measurement This section describes the basic method of measurement of each measurement parameters. ■ Preparation ................. 16 ● Confirmation before starting measurement ........16 ● Turning ON the instrument..............17 ● Connecting an electrode ..............20 ■ pH measurement................ 21 ●...

  • Page 32: Preparation

    Preparation ■ Preparation ● Confirmation before starting measurement ・ Have you prepared the appropriate electrode for the measurement parameter? ⇒ If not, purchase the appropriate electrode. ・ Is the prepared electrode in good condition? ⇒ If the responsive part is stained or damaged, it may not be possible to obtain 　...

  • Page 33: Turning On The Instrument

    Preparation ● Turning ON the instrument • Inserting the batteries This instrument is operated by batteries. You can use AAA alkaline batteries or AAA Ni- MH rechargeable batteries. Perform the following procedure to insert batteries in the instrument. 1. Turn the knob on the battery cover on the back of the instrument counterclockwise to unlock the battery cover.
  • Page 34 Preparation • Using the AC adapter (option) It is possible to use the AC adapter to operate the instrument. Perform the following procedure to connect AC adapter to the instrument. The AC adapter is an option. To purchase it, contact your dealer. (Refer to "Options" (page 100).) 1.
  • Page 35 Preparation • Pressing the POWER key After setting the batteries or connecting the AC adapter, press the key over one second. The LCD is fully displayed for one second, and the screen displays the version number of software and the model, and then displays the measurement mode. Note •...

  • Page 36: Connecting An Electrode

    Preparation ● Connecting an electrode To perform measurement, you must use the appropriate electrode for measurement parameters. Recommended electrodes for each measured sample are listed in our product catalog and on our website. Refer to them when preparing electrodes. Use the following procedure to correctly connect the electrode to the instrument.

  • Page 37: Ph Measurement

    pH measurement ■ pH measurement You can measure the pH of the sample with a pH electrode. Use a combination electrode incorporating a glass electrode and a reference electrode for measurement. A single glass electrode cannot be used with this instrument. pH can be measured using channel 1 of the instrument.
  • Page 38 pH measurement In the case of "ATC", you can calibrate the temperature sensor (refer to "Calibrating temperature sensor" (page 62)). 3. In the case of "MTC", enter the temperature to be compensated for and press key to confirm. Enter a number To return to the measurement mode, press the key.
  • Page 39 pH measurement • Setting the standard solution used for calibration (default: USA) Set the standard solution used for calibration. With this instrument, you can choose from 3 types, USA, NIST, and CUST (the standard solution other than USA and NIST). Set according to the standard solution to be used.
  • Page 40 pH measurement 4. Press the keys to select "USA", "NIST", or "CUST" according to the standard solution to be used and press the key to confirm selection. Select "USA" and press the (Ex.: "USA" is selected) To return to the measurement mode, press the key.

  • Page 41: Performing Calibration

    pH measurement ● Performing calibration Calibration is necessary to measure pH accurately. We recommend performing calibration once a day, before the first measurement. According to the following procedure, perform calibration accurately. Note ・ Perform two-point calibration using pH 7 and pH 4 when you know that the sample is acidic;...
  • Page 42 pH measurement 5. Press the key. Calibration to the standard solution value at the measured temperature is performed. The 1st point calibration ends and "7" calibration history icon lights, indicating that pH 7 calibration is complete. The display automatically returns to the measurement screen. Stabilized 6.
  • Page 43 pH measurement Two-point calibration is complete. When calibrating three points or more, use the same procedure to continue calibrating the 3rd and subsequent points after the 2nd point calibration. You can calibrate up to five points. Also, you can inspect repeatability using the pH 7 standard solution. About the repeatability inspection procedure, refer to "Inspecting repeatability"...
  • Page 44 pH measurement • Inspecting repeatability You can inspect repeatability using the pH 7 standard solution by returning to the calibration screen after calibration and ends and pressing the key. Measure the pH 7 standard solution by using the calibrated electrode to display the absolute value of the difference between the measured value and standard solution value.
  • Page 45 pH measurement 6. Press the key to start inspection. "REP" (repeatability) is shown and display changes to the measurement mode. Stabilized Note Repeatability inspection can be performed only once for one calibration.
  • Page 46 pH measurement • pH standard solution setting is CUST This section describes the procedure for two-point calibration. 1. Clean the pH electrode with pure water (or deionized water) and wipe it with filter paper or tissue paper. 2. Open the internal solution filler port of the pH electrode.
  • Page 47 pH measurement key or Enter a number 6. Perform the 2nd point calibration. As with the step 1., clean the pH electrode and immerse it in the 2nd standard solution. As with the step 3., immerse at least 3 cm from the tip of the pH electrode.
  • Page 48 pH measurement key or Enter a number Two-point calibration is complete. When calibrating three points or more, use the same procedure to continue calibrating the 3rd and subsequent points after the 2nd calibration. You can calibrate up to five points. Note •...

  • Page 49: Performing Measurement

    pH measurement ● Performing measurement You can perform measurement in the measurement mode by immersing the pH electrode in the sample. You can use the automatic hold function to judge the stability of the measured value. The automatic hold function has two modes, the auto stability mode and the auto hold mode.

  • Page 50: Saving The Measured Value

    pH measurement • Auto stability mode If the measurement pH value does not fulfill the stability condition, the fixed value is released. When the measured value fulfill the stability condition again, the measured value is fixed. • Auto hold mode Press the key to release the fixed measured value.

  • Page 51: Mv, Orp Measurement

    mV, ORP measurement ■ mV, ORP measurement You can measure the electromotive force between the electrode and the sample by using a pH electrode. The mV value can be used to understand the status of the electrode in the mV measurement. You can measure the ORP (oxidation-reduction potential) of the sample by using an ORP electrode in the ORP measurement.

  • Page 52: Performing Measurement

    mV, ORP measurement ● Performing measurement You can perform measurement in the measurement mode by immersing the pH electrode in the sample. Also, you can use the automatic hold function to judge the stability of the measured value. The automatic hold function has two modes, the auto stability mode and the auto hold mode.

  • Page 53: Saving The Measured Value

    mV, ORP measurement Note • The criteria of stability judgment in the automatic hold measurement are as follows. Potential variation for 10 seconds is less than 1 mV and temperature variation is less than 2.0°C • If the measured value is below the display range, "Ur" (under) appears. If the measured value is above the display range, "Or"...

  • Page 54: Dissolved Oxygen Measurement

    Dissolved oxygen measurement ■ Dissolved oxygen measurement You can measure the dissolved oxygen, oxygen concentration, and saturated oxygen concentration of a sample with a DO electrode. Oxygen concentration and saturated oxygen concentration are calculated from the measured value of dissolved oxygen. Press the key to select the measurement parameter (“...
  • Page 55 Dissolved oxygen measurement In the case of "ATC", you can calibrate the temperature sensor (refer to "Calibrating temperature sensor" (page 62)). 3. In the case of "MTC", enter the temperature to be compensated for and press key to confirm. Enter a number To return to the measurement mode, press the key.
  • Page 56 Dissolved oxygen measurement • Setting salinity correction (default: 0.0 PPT) Because dissolved oxygen is affected by the salinity concentration, you need to correct it at measurement. Set the salinity concentration of the sample beforehand. You can select arbitrary numeric value or sea concentration (35.0 PPT). If the measured target does not contain saline matter, set to 0.0 PPT.
  • Page 57 Dissolved oxygen measurement • Setting air pressure correction (default: 101.3 kPa) Because dissolved oxygen is affected by air pressure in the location where measurement is taking place, you need to correct it at measurement. Set the air pressure of the location. At sea level, you can use the instrument with the default setting. If you are using the instrument in a high altitude area, you must set the air pressure correction.

  • Page 58: Performing Calibration

    Dissolved oxygen measurement ● Performing calibration Calibration of the DO electrode is required to measure dissolved oxygen accurately. We recommend performing calibration once a day, before the first measurement. According to the following procedure, perform calibration accurately. You can use the saturated oxygen concentration mode (%) or dissolved oxygen measurement mode (mg/L) for calibration.
  • Page 59 Dissolved oxygen measurement 4. Press the key to enter the calibration mode. Stability judgment starts and the sat.ratio icon blinks. When the value is stabilized, the sat.ratio icon changes from the blinking state to the lit state. When you press the key or the key, the calibrated value is displayed (the calibrated value differs depending on the conditions because it is affected by temperature and air pressure).
  • Page 60 Dissolved oxygen measurement •Preparing the zero standard solution Add 50 g sodium sulfite (Na ) into 1000 mL pure water (or deionized water) and stir it until sodium sulfite completely dissolves. • Calibrating in the dissolved oxygen measurement mode When you perform two-point calibration in the dissolved oxygen measurement mode, calibrate in the order from a high-concentration solution to a low-concentration solution.
  • Page 61 Dissolved oxygen measurement 7. Press the key or the key. The value is set to the displayed value, and the mode is changed to Low concentration calibration. Stabilized Enter a number key or You can finish calibration by pressing the key.
  • Page 62 Dissolved oxygen measurement 11. Press the key or the key. The value is set to the displayed value, and the display returns to the measurement mode. Stabilized Enter a number key or Calibration using the standard solution is complete. Note ・...

  • Page 63: Performing Measurement

    Dissolved oxygen measurement ● Performing measurement You can perform measurement in the measurement mode by immersing the DO electrode in the sample. Also, you can use the automatic hold function to judge the stability of the measured value. The automatic hold function has two modes, the auto stability mode and the auto hold mode.

  • Page 64: Saving The Measured Value

    Dissolved oxygen measurement Note • The criteria of stability judgment in the automatic hold measurement are as follows. Dissolved oxygen: Display value change for 10 seconds is less than 0.03 mg/L and temperature change is less than 2.0°C. Oxygen concentration: Display value change for 10 seconds is less than 0.1% and temperature change is less than 2.0°C.

  • Page 65: Using Various Functions

    Using various functions This section describes functions available in this instrument. ■ Data functions............50 ● Displaying saved data................. 50 ● Using the automatic data save............51 ● Deleting all saved data................ 54 ■ Measurement setting..........56 ● Displaying the latest calibration and inspection data ..... 56 ●...

  • Page 66: Data Functions

    Data functions ■ Data functions ● Displaying saved data You can display the data saved in the internal memory. 1. Press the key to enter the data mode. 2. Press the keys to select "DATA OUT" (display saved data) and then press key.

  • Page 67: Using The Automatic Data Save

    Data functions ● Using the automatic data save This function saves the data in the internal memory of the instrument at the specified interval automatically. While using this function, auto stability and hold mode are not available and the automatic power off setting is disabled. If the batteries run out while using the automatic data save function, the data saved until just before the batteries run out.
  • Page 68 Data functions 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. Enter a number Enter a number 5. Press the key to enter the measurement mode.
  • Page 69 Data functions 6. Pressing 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.

  • Page 70: Deleting All Saved Data

    Data functions ● Deleting all saved data Delete all 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.
  • Page 71 Data functions 3. Select "YES" to delete 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. Select "YES" and press the To return to the measurement mode, press the key.

  • Page 72: Measurement Setting

    Measurement setting ■ Measurement setting ● Displaying the latest calibration and inspection data • In the case of displaying the latest pH calibration data and repeatability inspection data You can display the latest pH calibration data and repeatability inspection data. 1.
  • Page 73 Measurement setting Asymmetry potential display Repeatability display Sensitivity display To return to the measurement mode, press the key and then press the key. • The asymmetry potential can be displayed only for pH calibration data. • When multiple point calibration (more than two points) is performed, the results of multiple point calibration are displayed.
  • Page 74 Measurement setting • In the case of displaying the latest DO calibration data You can display the latest DO calibration data. 1. Press the key to enter the setting mode when "DO" icon is shown on the main screen. 2. Press the keys to select "DO"...

  • Page 75: Using The Calibration Interval Alarm (Default: Off)

    Measurement setting ● Using the calibration interval alarm (default: OFF) If calibration has not been performed for set period of time after last calibration is performed, "ERR No. 0008" is displayed to prevent forgetting to perform calibration. When the error is displayed, performing calibration clears the error. 1.

  • Page 76: Deleting Calibration Data

    Measurement setting ● Deleting calibration data Delete the calibration data set in the instrument. 1. Press the key to enter the setting mode. 2. Press the keys to select the component to delete the data from "pH" or "DO" and then press the key.
  • Page 77 Measurement setting 4. Select "YES" to delete the calibration data, or select "NO" to cancel deleting it. And then press the key to confirm selection. When "YES" is selected and the key is pressed, "END" appears after deletion is complete. Select "YES"...

  • Page 78: Temperature Settings

    Temperature settings ■ Temperature settings ● Calibrating temperature sensor The temperature sensor or temperature compensation electrode in the combination electrode has ±1°C accuracy without calibration. You can use a known temperature solution to calibrate the temperature sensor. 1. Insert the temperature connector into the jack of temperature connector (T) on the instrument.
  • Page 79 Temperature settings Enter a number To return to the measurement mode, press the key. Note When initializing temperature calibration data, all settings need to be initialized. Perform initialization by referring to "Resetting to factory default settings" (page 68). When initialization is performed, all saved data is deleted. Copy or transfer necessary data to a PC for storage.

  • Page 80: General Settings

    General settings ■ General settings ● Setting the auto stability and auto hold function This instrument has auto stability mode and auto hold mode. • Auto stability mode (displayed as AS) When the criterion for stability judgment is fulfilled during measurement, the component icon lights and the measured value is fixed.
  • Page 81 General settings 4. Select "AS" to set the auto stability, or select "AH" to set the auto hold. And then press the key to confirm selection. Select "AS" and press To return to the measurement mode, press the key. Note In the calibration mode, the auto stability mode always works.

  • Page 82: Changing The Automatic Power Off Setting (Default: 30 Min)

    General settings ● Changing the automatic power off setting (default: 30 min) You can set the instrument to automatically turn OFF when there is no key operation for a certain period of time. This function is disabled during automatic data memory saving or remote operation using an external device.
  • Page 83 General settings 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.

  • Page 84: Resetting To Factory Default Settings

    General settings ● Resetting to factory default settings The instrument settings can be reset to the factory default settings. The calibration data is deleted but the data of date and time, and the saved data are not deleted. Make sure there will be no problems before using this function.
  • Page 85 General settings 4. Select "YES" to initialize the settings to the factory 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 automatically power OFF.

  • Page 86: Setting The Date And Time

    General settings ● Setting the date and time When using the instrument for the first time or after replacing the batteries, set the date and time. After setting, the date and time data is displayed correctly when saving data in the internal memory.
  • Page 87 General settings 5. In the same way, set "DATE" (month and date) and "TIME" (hour and minute), in that order. 6. Press the ● key to confirm the setting. Enter a number Enter a number and press the and press the Enter a number Enter a number and press the...

  • Page 88: Performing Test Printing Of The Printer Unit

    General settings ● Performing test printing of the printer unit In order to check whether the printer unit is operating correctly or there is a printer communication problem, you can perform test printing. Connect the instrument and a printer correctly and perform the following procedure for test printing.
  • Page 89 General settings 3. Press 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 the key. Printed key or To return to the measurement mode, press the key.

  • Page 90: Other Settings

    Temperature : 25.0°C MTC displaying range mark Over: OR Under: UR Inst. model : LAQUAact-PD110 Instrument model Inst. SN : KL1TSE10 Instrument serial number Elect. status : GOOD Electrode status based on calibration result...
  • Page 91 Other settings < Calibration data (pH, inspection was performed) > Printout format Description Inst. model : LAQUAact-PD110 Instrument model Inst. SN : KL1TSN36 Instrument serial number Elect. status : GOOD Electrode status based on calibration result Offset : 0.7 mV...
  • Page 92 Other settings < Calibration data (dissolved oxygen, air calibration) > Printout format Description Inst. model : LAQUAact-PD110 Instrument model Inst. SN : KL1TSN36 Instrument serial number Calibration mode CAL MODE : Air Air calibration: Air Standard solution calibration: Solution Calibration data...

  • Page 93: Transferring Saved Data To A Pc

    Other settings ● Transferring saved data to a PC By using a serial cable to connect the instrument to a PC, you can transfer the saved data to the PC and edit it. Connect the serial connector at the instrument side to the RS- 232C port on the PC.

  • Page 94: Operating The Instrument From An External Device

    Other settings ● Operating the instrument from an external device You can remotely operate the instrument from an external device (such as PC) via the RS-232C communication. Use the serial cable to connect the serial connector on the instrument side and the serial port on the PC. When using this function, pay attention to the following points.

  • Page 95: Maintenance

    Maintenance Maintenance This section describes maintenance of the instrument and the electrodes that are used with the instrument. To use them for a long period, perform the described maintenance procedures appropriately. ● Contact for maintenance Please contact your dealer for the product maintenance. ●...

  • Page 96: Maintenance And Storage Of The Ph Electrode

    Maintenance ● Maintenance and storage of the pH electrode For the detailed procedures for maintaining and storing electrodes, refer to the instruction manual for each electrode. This section describes an overview of the procedures for maintenance and storage to be performed as part of daily use. •...

  • Page 97: Maintenance And Storage Of The Orp Electrode

    Maintenance ● Maintenance and storage of the ORP electrode For the detailed procedures for maintaining and storing electrodes, refer to the instruction manual for each electrode. This section describes an overview of the procedures for maintenance and storage to be performed as part of daily use. •...

  • Page 98: Checking The State Of The Orp Electrode

    ORP standard solution can be used to check the state of the ORP electrode. This solution is only used to check the state of the ORP electrode; it is not used to calibrate the instrument. The procedure for checking the electrode using HORIBA ORP standard solution powder 160-22 or 160-51 is explained below.

  • Page 99: Maintenance And Storage Of The Do Electrode

    Maintenance ● Maintenance and storage of the DO electrode For the detailed procedures for maintaining and storing electrodes, refer to the instruction manual for each electrode. This section describes an overview of the procedures for maintenance and storage to be performed as part of daily use. •...
  • Page 100 M E M O...

  • Page 101: How To Resolve Errors Or Troubles

    When an error message appears How to resolve errors or troubles This section describes the causes of typical problems and the actions to be taken, including questions frequently asked by customers. Check these before contacting us. ■ When an error message appears If "ERR No.00XX"...

  • Page 102: Err No.0002 　 Empty Battery Level

    When an error message appears ● ERR No.0002 　 Empty battery level The instrument cannot operate properly because the battery level is empty. Cause How to solve problem The battery level is empty. Replace the batteries or connect the AC adapter (option). ●...

  • Page 103: Err No.0005 　 Electrode Sensitivity Error (Ph)

    When an error message appears ● ERR No.0005 　 Electrode sensitivity error (pH) Detected that the electrode sensitivity is out of the setting range that allows proper measurement. Cause How to solve problem The electrode is dirty Clean the electrode. The electrode is cracked Replace the electrode.

  • Page 104: Err No.0006 　 Maximum Calibration Points Exceeded

    When an error message appears ● ERR No.0006 　 Maximum calibration points exceeded Attempted to perform 6th point calibration during pH calibration. Cause How to solve problem 6th point calibration is Up to five points can be calibrated. attempted. ● ERR No.0007 　 Cannot identify standard solution Unable to automatically detect the standard solution during pH calibration.

  • Page 105: Err No.0009 　 Printer Error

    When an error message appears ● ERR No.0009 　 Printer error An error occurred during printer communication. Cause How to solve problem There is a problem with the Check the printer connection, and connect the instrument printer unit connection. and printer again. The defect of the printer Consult your dealer.

  • Page 106: Troubleshooting

    Troubleshooting ■ Troubleshooting This section describes causes and actions to take for problems that customers frequently ask us. ● The indicated value fluctuates < Problem with the electrode > Cause How to solve problem The electrode is dirty. Clean the electrode. The electrode is cracked.

  • Page 107: The Response Is Slow

    Troubleshooting ● The response is slow Cause How to solve problem The electrode is dirty. Clean the electrode. The electrode is cracked. Replace the electrode. The wrong internal solution is Use the correct internal solution. being used. It is important to select an electrode that is appropriate for the sample.

  • Page 108: The Measured Value Is Out Of The Measurement Range

    Troubleshooting ● The measured value is out of the measurement range When the measured value is below the display range, "Ur" appears. When the measured value is over the display range, "Or" appears. Cause How to solve problem Sample is out of the Use a sample within the measurement range.

  • Page 109: Nothing Appears When The Power Is Turned On

    Troubleshooting ● Nothing appears when the power is turned ON Cause How to solve problem Power is not supplied. Insert batteries or connect the AC adapter (option). Battery polarity (+, ) is Insert the batteries with the polarity (+, ) correctly reversed.
  • Page 110 M E M O...

  • Page 111: Appendix

    Options for the instrument are also described. ■ Main specifications Item Contents Model LAQUAact-PD110 Measurement pH, mV (ORP), dissolved oxygen, oxygen concentration, parameters saturated oxygen concentration, temperature Operating ambient 0°C to 45°C temperature, humidity 80% or less in relative humidity (no condensation) AAA alkaline batteries (LR03) or AAA NiMH rechargeable...
  • Page 112 Main specifications ・ Specification of each measurement parameters Measurement Item Description parameter Measuring principle Glass electrode pH 2.00 to pH 16.00 Display range Measuring range pH 0.00 to pH 14.00 Resolution 0.01 pH Accuracy ±0.01 pH Measuring range ±2000 mV Resolution 1 mV mV (ORP)

  • Page 113: Instrument Default Settings

    Instrument default settings ■ Instrument default settings Measurement Selection item/Setting Item Default values range parameter Auto hold AS/AH Temperature input value 0.0°C to 100.0°C 25.0°C Auto power off time 30 min 0 min to 30 min * Common Auto data memory time 0, 2 s to 3600 s * Auto data memory 0 min...

  • Page 114: Technical Note

    Technical note ■ Technical note ● pH standard solutions at various temperatures < USA > pH 12 pH 7 Temp. pH 2 pH 4 pH 10 Saturated calcium Neutral (°C) Oxalate Phthalate Carbonate hydroxide phosphate solution 1.666 4.003 7.119 10.318 13.423 1.668 3.999...

  • Page 115: Saturated Do Levels In Water At Various Temperatures

    Technical note ● Saturated DO levels in water at various temperatures Saturated Saturated Saturated Saturated Temp. Temp. Temp. Temp. (°C) (°C) (°C) (°C) (mg/L) (mg/L) (mg/L) (mg/L) 13.77 10.67 8.68 7.42 13.40 10.43 8.53 7.32 13.04 10.20 8.39 7.22 12.70 9.97 8.25 7.13...

  • Page 116: Options

    Options ■ Options A wide variety of electrodes and options are available for use with the instrument. You can select the optimum electrode and options for your application and objectives. These options can be purchased from your nearest agency. Please provide the part name and part number to the representative.
  • Page 117 2 Miyanohigashi, Kisshoin Minami-ku, Kyoto 601-8510 Japan http://www.horiba.com...

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