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YaliTech LAQUAact-PC110 Instruction Manual

Handheld ph/orp/conductivity meter
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Handheld pH/ORP/Conductivity Meter
LAQUAact-PC110
Instruction Manual
CODE:GZ0000427799

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Summary of Contents for YaliTech LAQUAact-PC110

  • Page 1 Handheld pH/ORP/Conductivity Meter LAQUAact-PC110 Instruction Manual CODE:GZ0000427799...
  • Page 3 Preface This manual describes the operation of the Handheld pH/ORP/Conductivity Meter LAQUAact-PC110. Be sure to read this manual before using the product to ensure proper and safe operation of the product. Also safely store the manual so it is readily available whenever necessary.
  • Page 4 Regulations ■ Conformable Directive This equipment conforms to the following directives and standards: EMC: EN61326-1 Class B, Basic electromagnetic environment Safety: EN61010-1 RoHS: EN50581 9. Monitoring and control instruments Warning: This product is not intended for use in industrial environments. In an industrial environment, electromagnetic environmental effects may cause the incorrect performance of the product in which case the user may be required to take adequate measures.
  • 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. ・Do not drop, crash, or give any physical impact on the instrument. ・The instrument is made of solvent-resistant materials but that does not mean it is resistant to all chemicals.
  • Page 10 For your safety ●Operational precautions (battery) ・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, remove the batteries.

  • 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 measured value............36 ■ mV, ORP measurement .............37 ● Switching between absolute value and relative value ..37 ● Performing measurement ............38 ● Saving measured value............39 ■ Conductivity measurement..........40 ● Setting the instrument.............. 41 ● Performing conductivity calibration ........57 ●...
  • Page 15 Contents ■ Other settings ..............89 ● Printing measured values and calibration data .....89 ● Transferring saved data to a PC ..........93 ● Operating the instrument from an external device ....94 Maintenance ............... 95 ● Contact for maintenance ............95 ● Maintenance and storage of the instrument......95 ●...
  • Page 16 Contents ● The measured value is out of the measurement range..107 ● Repeatability of the measured value is poor ....... 107 ● Nothing appears when the power is turned ON....108 ● Swelling of operation key sheet ..........108 ●...

  • 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 Displays the measured value and the set value. Measured value, set item This is displayed in the main screen and the sub display area screen, respectively. Standard solution When calibrating pH or conductivity standard calibration history icon solution, the corresponding icon lights.

  • 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: COND Conductivity measurement settings P11: CELL Cell constant setting P12: UNIT Selection of unit: S/cm, S/m, mS/cm FIX P13: CAL DATA Calibration data display P14: AUTO CAL Selection of auto calibration, manual calibration P15: CAL CLR Deletion of calibration data P16: TEMP CF...
  • Page 26 Basic operation Screen Layer Description P5: GEN General settings P51: MEAS Selection of auto hold type: auto stability, auto hold P52: AUTO OFF Automatic power off setting: 0 min to 30 min P53: RESET Initialization of settings P54: DATE Date and time setting P55: PRINT Test print...

  • Page 27: 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 28: 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 29: 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 30: 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 31: Entering Numeric Values

    Basic operation ● Entering numeric values When entering numeric values to make various settings and set a calibration value, change the selected digit using the keys and increment or decrement the value (0 to 9) using the keys.

  • Page 32: 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 33: Measurement

    Measurement This section describes the basic method of measurement of each measurement parameters. ■ Preparation ................. 18 ● Confirmation before starting measurement ........18 ● Turning ON the instrument..............19 ● Connecting an electrode ..............22 ■ pH measurement................ 23 ●...

  • Page 34: 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 35: 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 36 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 116).) 1.
  • Page 37 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 38: Connecting An Electrode

    Preparation ● Connecting an electrode To perform measurement, it is necessary 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 39: 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 40 pH measurement In the case of "ATC", you can calibrate the temperature sensor (refer to "Calibrating temperature sensor" (page 77)). 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 41 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 42 pH measurement 4. Press the keys to select "USA", "NIST", or "CUST" according to the standard solution to be used and then 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 43: 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 44 pH measurement 5. Press the key or 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 key or 6.
  • Page 45 pH measurement key or 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 46 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 47 pH measurement 6. Press the key to start inspection. "REP" (repeatability) is shown and display changes to the measurement mode. Stabilized...
  • Page 48 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 49 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 50 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 51: 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 52: Saving 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 53: 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 54: 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 55: Saving 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 56: Conductivity Measurement

    Conductivity measurement ■ Conductivity measurement The conductivity cell can be used to measure the conductivity, salinity, TDS, and resistivity of a sample. Salinity, TDS, and resistivity are calculated from the measured value of conductivity. Press the key to select the measurement parameter (refer to "Changing the measurement parameter"...

  • Page 57: Setting The Instrument

    Conductivity measurement ● Setting the instrument • Setting the temperature display When a conductivity cell with a temperature sensor is used, or a conductivity cell without a temperature sensor is used with a temperature electrode, the automatic temperature measurement function can be used. During measurement, the temperature sensor measures the temperature of the sample and displays the result on the instrument.
  • Page 58 Conductivity measurement 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 59 Conductivity measurement • Setting the conductivity unit (default: S/cm) Select the conductivity unit from three options, S/cm, S/m, mS/cm FIX (fixed at mS/cm) depending on your application. When measuring resistivity, these units correspond to Ω·cm, Ω·m, Ω·cm (for mS/cm FIX). 1.
  • Page 60 Conductivity measurement 4. Press the keys to select the unit and press the key to confirm selection. Select "S/cm" and press the (Ex.: "S/cm" is selected) To return to the measurement mode, press the key.
  • Page 61 Conductivity measurement • Setting the salinity unit (default: PPT) Select the salinity unit from % or PPT depending on your application. 1. Press the key to enter the setting mode. 2. Press the keys to select "SALT" (conductivity setting) and then press the key.
  • Page 62 Conductivity measurement 4. Press the keys to select the unit and then press the key to confirm selection. (Ex.: "%" is selected) To return to the measurement mode, press the key.
  • Page 63 Conductivity measurement • Setting the cell constant (default: 1.000×1.0 cm A cell constant is unique for each conductivity cell. To measure conductivity correctly, the cell constant of the conductivity cell must be set in the instrument. 1. Press the key to enter the setting mode. 2.
  • Page 64 Conductivity measurement 4. Press the keys to select the digit number of the cell constant of the conductivity cell and then press the key. Select "1.0" and press the (Ex.: "1.0" is selected) 5. Press the keys to enter the cell constant value of the conductivity cell and then press the key to confirm.
  • Page 65 Conductivity measurement Note ・ The unit used for the cell constant corresponds the unit set in "Setting the conductivity unit (default: S/cm)" (page 43). ・ When the cell constant is changed through the cell constant setting, all the previous calibration data is deleted. ・...
  • Page 66 Conductivity measurement • Setting the temperature conversion (Default: ON, 2.00%/°C） The measured value of a sample that is not at 25°C can be converted to a value at the selected temperature. To use the temperature conversion function correctly, temperature coefficient (the rate of change per 1°C of the conductivity) must be set for each sample. The setting of "Setting the temperature display"...
  • Page 67 Conductivity measurement Note ・ The temperature coefficient varies by sample. Before using the temperature conversion function, always check the temperature coefficient of the sample and set it in the instrument. ・ When the temperature conversion function is used with automatic temperature measurement (ATC), deviations may occur within the accuracy of the temperature sensor.
  • Page 68 Conductivity measurement • Setting the reference temperature (Default: 25°C) Temperature to be converted can be selected from 15°C to 30°C. 1. Press the key to enter the setting mode. 2. Press the keys to select "COND" (conductivity setting) and then press the key.
  • Page 69 Conductivity measurement • Setting the TDS method TDS is calculated from the measured conductivity value. The available calibration methods are "LINEAR": KCl with factor adjustable from 0.4 to 1.0 (default: 0.5), "442": Myron L 442 non-linear standard curve, "EN27888": European environmental standard non-linear curve, and "NACL": non-linear salinity curve.
  • Page 70 Conductivity measurement 4. Press the keys to select the TDS method and then press the key. 5. When selecting "LINEAR", enter the factor and then press the key to confirm. Selected "LINEAR" and press Enter a number To return to the measurement mode, press the key.
  • Page 71 Conductivity measurement • Setting the salinity method Salinity is calculated from the measured conductivity value. The available calibration methods are "NACL" and "SEAWTR" (sea water). 1. Press the key to enter the setting mode. 2. Press the keys to select "SALT" (salinity setting) and then press the key.
  • Page 72 Conductivity measurement 4. Press the keys to select the salinity calculation method and then press key to confirm. To return to the measurement mode, press the key.

  • Page 73: Performing Conductivity Calibration

    Conductivity measurement ● Performing conductivity calibration The factory-certified cell constant is indicated on the label on the electrical conductivity cell. Cell constant may change depending on the usage condition. In such case, the conductivity cell can be calibrate automatically or manually. You can select calibration method.
  • Page 74 Conductivity measurement Note In automatic calibration, the measured value of a standard solution that is not at 25°C is always converted to 25°C with 2.00%/°C temperature coefficient.
  • Page 75 Conductivity measurement •Manual calibration 1. Clean 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. Refer to the instruction manual of the conductivity cell for how to clean the conductivity cell. 2.
  • Page 76 Conductivity measurement Stabilized Enter a number For multiple point calibration, repeat the steps 1. to 5. The calibration points are up to 5 points. Note The calibration for TDS, salinity, and resistivity is performed with the result of the calibration of conductivity.

  • Page 77: Performing Measurement

    Conductivity measurement ● Performing measurement Immerse the conductivity cell in a sample to perform measurement. Auto stability mode and auto hold mode are available to judge the stability of the measurement value. For details of settings, refer to "Setting the auto stability and auto hold function" (page 79).

  • Page 78: Saving Measured Values

    Conductivity measurement ● Saving measured values To save the measurement data, press the key in the screen that you want to save. For details, refer to "Saving measurement data in the internal memory" (page 16).

  • Page 79: Using Various Functions

    Using various functions This section describes functions available in this instrument. ■ Data functions............64 ● Displaying saved data................. 64 ● Using the automatic data save............65 ● Deleting all saved data................ 68 ■ Measurement setting..........70 ● Displaying the latest calibration and inspection data ..... 70 ●...

  • Page 80: 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 81: 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 82 Data functions 3. Enter the interval of saving in seconds and press the key. An interval from 0, 2 s to 3600 s can be set. When "0" is entered, this function is set to OFF. 4. Enter the period of saving in minutes and press the key.
  • Page 83 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 84: 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 85 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 86: Measurement Setting

    Measurement setting ■ Measurement setting ● Displaying the latest calibration and inspection data You can display the latest calibration data and repeatability inspection data. • In the case of displaying the latest pH calibration data and repeatability inspection data 1. Press the key to enter the data mode when "pH"...
  • Page 87 Measurement setting 3. Press the keys to select "CAL DATA" (display calibration data) and then press the key. The electrode status based on the calibration result is displayed. You can change the display item among "OFS" (asymmetry potential) to SLP (sensitivity) to REP (repeatability) by pressing the keys.
  • Page 88 Measurement setting • In the case of displaying the latest conductivity calibration data 1. Press the key to enter the setting mode when "COND" icon is shown on the main screen. 2. Press the keys to select "COND" (conductivity setting) and then press the key.

  • Page 89: Changing The Calibration Method

    Measurement setting ● Changing the calibration method Select automatic calibration or manual calibration for the conductivity calibration method. 1. Press the key to enter the setting mode when "COND" icon is shown on the main screen. 2. Press the keys to select "COND" (conductivity setting) and then press the key.

  • Page 90: 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 91: 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 key to select the component to delete the data from "pH" or "COND" and then press the key.
  • Page 92 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 is pressed, "END" appears after deletion is complete. Select "YES" and press the To return to the measurement mode, press the key.

  • Page 93: 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 94 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 83). When initialization is performed, all saved data is deleted. Copy or transfer necessary data to a PC for storage.

  • Page 95: 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 96 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 97: 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 98 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." Enter a number To return to the measurement mode, press the key.

  • Page 99: 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 100 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 101: 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 102 General settings 3. Press the keys to select "DATE" (date and time setting) and then press key. 4. Enter "YEAR" (current year) and press the key. 5. In the same way, set "MONTH" (month), "DAY" (date) and "TIME" (hour and minute), in that order.

  • Page 103: 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 104 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 105: Other Settings

    Other settings ■ Other settings ● Printing measured values and calibration data Print out the measured value or calibrated value displayed on the instrument, or the measurement data or the calibration data saved in the instrument. If the repeatability is inspected, the inspection data is printed out with the calibration data.
  • Page 106 Under: UR Temperature value and temperature setting Out of measure range ： 25.0°C MTC Temperature Over: OR Under: UR ： LAQUAact-PC110 Instrument model Inst. model ： KL1TSN20 Instrument serial number Inst. SN ： GOOD Electrode status based on calibration result Elect.
  • Page 107 Other settings < Calibration data (pH, inspection was performed) > Printout format Description ： LAQUAact-PC110 Instrument model Inst. model ： KL1TSN20 Instrument serial number Inst. SN ： GOOD Electrode status based on calibration result Elect. status ： 0.7 mV Asymmetry potential of calibration data...
  • Page 108 Other settings < Calibration data (conductivity) > Printout format Description ： LAQUAact-PC110 Instrument model Inst. model ： KL1TSN20 Instrument serial number Inst. SN ： Cell constant CELL R1 (0.00-19.99 μS/cm) Measurement range (range 1) Cell constant (range 1) 1.000×1 cm R2 (18.0-199.9 μS/cm)

  • Page 109: 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 RS-232C connector at the instrument side to the serial port on the PC.

  • Page 110: 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 111: 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 112: 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 113: 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 114: Checking The State Of The Orp Electrode

    Maintenance ● 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.

  • Page 115: Maintenance And Storage Of The Conductivity Cell

    Maintenance ● Maintenance and storage of the conductivity cell For the detailed procedures for maintaining and storing cells, refer to the instruction manual for each cells. This section describes an overview of the procedures for maintenance and storage to be performed as part of daily use. •...
  • Page 116 M E M O...

  • Page 117: 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 118: 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 119: Err No.0005 　 Electrode Sensitivity Error

    When an error message appears ● ERR No.0005 　 Electrode sensitivity error 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 120: Err No.0008 　 Calibration Interval Error

    When an error message appears ● ERR No.0008 　 Calibration interval error ・ More than the set number of days has elapsed since calibration was last performed. ・ The calibration interval alarm is "ON" and calibration has not been performed. Cause How to solve problem Calibration has not been...

  • Page 121: 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 122: 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 123: 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 124: 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 125: Appendix

    Options for the instrument are also described. ■ Main specifications Item Contents Model LAQUAact-PC110 Measurement pH, mV (ORP), conductivity, salinity, TDS, resistivity, temperature parameters Operating ambient 0°C to 45°C temperature, humidity 80% or less in relative humidity (no condensation)
  • Page 126 Main specifications Measurement Item Description parameter Measuring principle 2 AC bipola method : 0.00 S/cm to 200.0 mS/cm Cell constant 1 cm Measuring range : 0.000 S/cm to 20.00 mS/cm Cell constant 0.1 cm (Display range) : 0.0 S/cm to 2.000 S/cm Cell constant 10 cm Conductivity Resolution...

  • Page 127: Table Of Conductivity Cell Range

    Main specifications ● Table of conductivity cell range ・ Unit: S/m Cell constant Range 1000 m 100 m 10 m 20.0 to 200.0 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 ・...

  • Page 128: Table Of Conductivity Cell Range (Resistivity Range)

    Main specifications ● Table of conductivity cell range (resistivity range) ・ Unit: Ω·m Cell constant Range 10 m 100 m 1000 m 0.200 to 2.000 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）...

  • Page 129: 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 to 3600 min...

  • Page 130: 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 131: Conductivity Standard Values At Various Temperatures

    Technical note ● Conductivity standard values at various temperatures Conductivity value at 25°C Temp. (°C) 84.00 (S/cm) 1413 (S/cm) 12.88 (mS/cm) 111.8 (mS/cm) 64.01 7.15 65.4 65.00 8.22 74.1 67.00 1020 9.33 83.2 68.00 1147 10.48 92.5 70.00 1173 10.72 94.4 71.00 1199...

  • Page 132: 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 133 2 Miyanohigashi, Kisshoin Minami-ku, Kyoto 601-8510 Japan http://www.horiba.com...

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