Related Manuals for Horiba Scientific LAQUAact D-71G
Summary of Contents for Horiba Scientific LAQUAact D-71G
- Page 1 Preface Instruction Manual Part names and basic operation pH Meter ( D-71G ) Measurement Various functions Maintenance How to resolve errors or troubles Appendix Portable pH ・ Water Quality Meter...
- Page 3 Preface ■ This manual describes the operation of the following instrument. Brand (pet name): LAQUAact Series name: Portable pH Water Quality Meter Model: D-71G Model description: pH Meter Be sure to read this manual before using the product to ensure proper and safe operation of the product.
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Page 4: Check Items
Check Items Check Items ■ ● Items in package After opening the package, check for damage on the instrument and that the standard accessories (see below) all exist. If damage or defects are found on the product, contact your dealer. Instrument Instruction manual (this book) -
Page 5: Regulations
Regulations Regulations ■ ● EU regulations ●Conformable standards This equipment conforms to the following 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 6 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 7 Regulations ● China regulation Meaning of Marking This marking is applied to electric and electronic products sold in the People's Republic of China. The figure at the center of the marking indicates the environmental protection use period in years. (It does not indicate a product guarantee period.) It guarantees that the product will not cause environment pollution nor serious influence on human body and property within the period of the indicated years which is counted from...
- Page 8 Regulations Name and amount of hazardous substance used in a product Hazardous substance Hexa- Poly Poly Unit name Cad- valent bromo- Lead bromo- cury mium chrom- diphenyl (Pb) biphenyl (Hg) (Cd) ether (PBB) (Cr (VI)) (PBDE) Main unit Battery *1, *2 AC adapter Cable Stand...
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Page 9: For Your Safety
For Your Safety 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 10 For Your Safety ● [FRA] Informations de sécurité Veillez à lire le présent manuel avant d’utiliser le produit de manière à garantir son utili- sation correcte et sûre. De même, rangez le manuel dans un lieu sûr de manière à pou- voir vous y reporter lorsque cela est nécessaire.
- Page 11 For Your Safety ● [SPA] Información de seguridad Asegúrese de leer este manual antes de utilizar el producto para garantizar un uso correcto y seguro del mismo. Asimismo, guarde de forma segura el manual para que esté disponible siempre que sea necesario. El contenido de este manual están sujetos a cambios sin previo aviso.
- Page 12 For Your Safety ● [NLD] Veiligheidsinformatie Lees deze handleiding voordat u dit product gebruikt zodat u het op de juiste manier en veilig kunt gebruiken. Bewaar de handleiding goed zodat u hem wanneer nodig kunt raadplegen. De inhoud van deze handleiding kunnen zonder voorafgaande kennisgeving worden gewijzigd.
- Page 13 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.
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Page 14: Product Handling Information
Product Handling Information 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 15 Product Handling Information ● 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.
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Page 16: Manual Information
Manual Information 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 17: Table Of Contents
Contents ■ Preface...................I ■ Check Items .................II ■ Regulations .................III ■ For Your Safety..............VII ■ Product Handling Information......... XII ■ Manual Information ............XIV Part Names and Basic Operation ........1 ■ Names of each part .............2 ● Instrument..................2 ●... - Page 18 Contents ● Displaying saved data .............. 29 ● Deleting all saved data ............. 30 ● Displaying the latest calibration and inspection data... 31 ● Deleting calibration data ............33 ● Setting the ID number (default: 000) ........34 ● Using the calibration interval alarm (default: OFF) ....35 ●...
- Page 19 Contents ● The measured value blinks ............47 ● The temperature display blinks or is fixed at 25°C ....47 ● Repeatability of the measured value is poor......48 ● Nothing appears when the power is turned ON .....48 ● Swelling of operation key sheet ..........48 ●...
- Page 20 M E M O...
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Page 21: 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 ● Identification of manufacturing date ........... 2 ●... -
Page 22: 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 connector Connects the temperature connector of the electrode. -
Page 23: Display
Names of each part ● Display Name Function Displays the current operation mode, electrode Status icon status, printer or PC connection status, and remaining battery level. Direction key icon Displays the currently available direction key. Date and time, set item Displays the current date and time and the set display area items. -
Page 24: Battery Level Display
Names of each part • Battery level display Battery level is high. Battery level is a little lower. Battery level is low. Battery has run out. Replace the batteries. "ERR No. 0002" is displayed and operation is disabled. -
Page 25: Operation Key
Names of each part ● Operation key Name Function Changes the operation mode to the measurement mode during operation in a different mode. The changes you made using the setting mode are reflected when you press MEAS key this key to return to the measurement mode. In the measurement mode, switches the automatic hold measurement on/off. -
Page 26: Basic Operation
Basic operation Basic operation ■ ● Changing the operation mode This instrument is operated by changing 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, data, or setting mode is available only from the measurement mode. -
Page 27: Entering Numeric Values
Basic operation ● 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 keys. - Page 28 M E M O...
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Page 29: Measurement
Measurement This section describes the basic measuring method of each measurement parameter. ■ Preparation ................. 10 ● Confirmation before starting measurement ........10 ● Turning ON the instrument..............11 • Inserting the batteries ..................11 • Using the AC adapter (option) ................12 •... -
Page 30: 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 31: 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 32: Using The Ac Adapter (Option)
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 56).) 1. -
Page 33: Setting The Date And Time
Preparation ● 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. If the setting is incorrect, the date and time of saved data becomes incorrect. -
Page 34: Connecting An Electrode
Preparation To change to the setting again, press the key to return to the "DATE" (date and time set- ting) screen. The settings on screen before the key is pressed are not saved. ● Connecting an electrode To perform measurement, you must use the appropriate electrode for measurement parameters. -
Page 35: 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. ●... -
Page 36: Setting The Standard Solution Used For Calibration (Default: Nist)
pH measurement 3. Press the keys to select the "ATC" (automatic temperature compensation) or the "MTC" (manual temperature compensation) and then press the key. 4. If you select the "MTC", enter the temperature to be compensated for and then press the key. -
Page 37: Standard Solution Type
pH measurement • Standard solution type Standard solution type Description Set to use the standard solution of the Japanese specification. NIST (Japanese specification) Standard solution icon Set to use the standard solution of the USA specification. (USA specification) Standard solution icon Set to use the standard solution of an optional specification. -
Page 38: 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 39 pH measurement 5. Check that the pH value is stable while the pH electrode 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 standard solution value at the measured temperature is performed.
- Page 40 pH measurement ・ You can cancel calibration by pressing the key while the HOLD icon is blinking. ・ The order of calibration of the standard solution is optional. In the above example, you can calibrate pH 4 first and then pH 7. Note If calibration of any standard solution is performed again in the calibration mode, only the value of calibrated solution is updated.
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Page 41: Inspecting Repeatability
pH measurement • Inspecting repeatability You can inspect repeatability using the pH 7 standard solution by pressing the key on the screen after calibration. 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 42: Ph Standard Solution Setting Is Cust
pH measurement • pH standard solution setting is CUST This section describes the procedure for two-point calibration. 1. Press the key to enter the calibration mode and enter the standard solution value for the 1st point calibration. 2. Wash the pH electrode with pure water (or deionized water) and wipe it with filter paper or tissue paper. - Page 43 pH measurement 5. While the pH electrode is immersed in the standard 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 calibration to the set standard solution value is performed.
- Page 44 pH measurement You can cancel calibration by pressing the key while the HOLD icon is blinking. Note If calibration of any standard solution is performed again in the calibration mode, only the value of calibrated solution is updated. If you change to the measurement mode and then enter the calibration mode to perform calibration again, all previous data is updated.
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Page 45: Performing Measurement
pH 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 perform stability judgment of the measured value. 1. Wash the pH electrode with pure water (or deionized water) and wipe it with filter paper or tissue paper. - Page 46 M E M O...
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Page 47: Using Various Functions
Using Various Functions This section describes functions available in this instrument. ● Saving measurement data in the internal memory ......28 ● Displaying saved data................. 29 ● Deleting all saved data................ 30 ● Displaying the latest calibration and inspection data ..... 31 •... -
Page 48: Saving Measurement Data In The Internal Memory
Saving measurement data in the internal memory ● Saving measurement data in the internal memory Up to 1000 data items measured by the instrument can be stored in the internal memory of the instrument. The measurement data is saved in the internal memory in the measurement mode, except during the automatic hold measurement. -
Page 49: Displaying Saved Data
Displaying saved data ● 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 "OUT" (display saved data) and then press the key. -
Page 50: Deleting All Saved Data
Deleting all saved data ● Deleting all saved data You can delete all data saved in the internal memory. However, you cannot delete a data individually. Copy necessary data before delete all data. 1. Press the key to enter the setting mode. 2. -
Page 51: Displaying The Latest Calibration And Inspection Data
Displaying the latest calibration and inspection data ● Displaying the latest calibration and inspection data You can display the latest pH calibration data and repeatability inspection data. • Displaying the latest calibration data 1. Press the key to enter the data mode. 2. -
Page 52: Displaying The Latest Inspection Data
Displaying the latest calibration and inspection data ・ Electrode status based on calibration result Display Description Reference Electrode sensitivity: 93% to 100% GOOD － Good condition. Electrode sensitivity: 90% to 93% CHECK Urgent measures are not required but attention is P. -
Page 53: Deleting Calibration Data
Deleting calibration data ● Deleting calibration data You can delete the calibration data set in the instrument. 1. Press the key to enter the setting mode. 2. Press the keys to select the "MAINT" (maintenance setting) and then press key. 3. -
Page 54: Setting The Id Number (Default: 000)
Setting the ID number (default: 000) ● Setting the ID number (default: 000) You can set an ID number to differentiate the sample of the 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. -
Page 55: Using The Calibration Interval Alarm (Default: Off)
Using the calibration interval alarm (default: OFF) ● Using the calibration interval alarm (default: OFF) If calibration has not been performed in pH measurement or calibration has not been performed for a certain period of time after calibration is performed, "ERR No. 0008" is displayed to prevent forgetting to perform calibration. -
Page 56: Calibrating Temperature Sensor
Calibrating temperature sensor ● 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. Immerse the electrode into the solution until the temperature sensor is immersed. -
Page 57: Changing The Automatic Power Off Setting (Default: Off)
Changing the automatic power off setting (default: OFF) ● Changing the automatic power off setting (default: OFF) 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 58: Resetting To Factory Default Settings
Resetting to factory default 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 59: Maintenance
Contact for 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 Manufacturer: HORIBA Advanced Techno Co., Ltd. 31, Miyanonishi-cho, Kisshoin Minami-ku, Kyoto 601-8306, Japan ●... -
Page 60: Maintenance And Storage Of The Ph Electrode
Maintenance and storage of the pH electrode ● 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 61: 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 ■... -
Page 62: 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 63: 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 Wash the electrode. The electrode is cracked Replace the electrode. -
Page 64: 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 65: Troubleshooting
Troubleshooting Troubleshooting ■ This section describes causes and actions to take for problems that customers frequently ask us. ● The indicated value fluctuates < There is a problem with the electrode > Cause How to solve problem The electrode is dirty. Clean the electrode. -
Page 66: 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 67: The Measured Value Blinks
Troubleshooting ● The measured value blinks The measured value blinks when it is out of the measurement range. Cause How to solve problem Sample is out of the Use a sample within the measurement range. measurement range. The electrode must be immersed up to the liquid junction. Electrode is not immersed As a guide, immerse to at least 3 cm from the tip of the enough to cover liquid junction. -
Page 68: Repeatability Of The Measured Value Is Poor
Troubleshooting ● Repeatability of the measured value is poor Cause How to solve problem Repeatability becomes poor when the pH of the sample Effect of the sample solution changes over time. Clean the electrode. (Electrode cleaning solution 220 or The electrode is dirty. 250 is recommended.) The electrode is cracked. -
Page 69: Part Of The Display Is Missing
Troubleshooting ● Part of the display is missing If part of the display is missing, it is the Instrument defect. Contact your dealer. It is possible to check part of the display is missing. The display can be set to full screen display. - Page 70 M E M O...
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Page 71: Appendix
Main specifications Appendix This section describes the specifications of the instrument, default settings, measurement principles, and other technical information. Options for the instrument are also described. Main specifications ■ Item Description Model D-71G Brand (pet name) LAQUAact Portable pH Water Quality Meter Series name Model description pH Meter... -
Page 72: Instrument Default Settings
Instrument default settings Instrument default settings ■ Measurement Selection item/Setting Item Default values range parameter Automatic (ATC)/ Temperature setting Automatic (ATC) Manual (MTC) Temperature input value 0.0°C to 100.0°C 25.0°C Common Auto power off ON/OFF Auto power off time 1 min to 30 min 30 min Sample ID 000 to 2999... -
Page 73: Technical Note
Technical note Technical note ■ ● pH measurement (glass electrode) In the glass electrode method, the known pH of a reference solution is determined by using two electrodes, a glass electrode and a reference electrode, and measuring the voltage (difference in potential) generated between the two electrodes. The difference in pH between solutions inside and outside the thin glass membrane creates electromotive force in proportion to this difference in pH. -
Page 74: Ph Standard Solutions At Various Temperatures
Technical note ● pH standard solutions at various temperatures < NIST > pH 7 pH 12 Temp. pH 2 pH 4 pH 9 Neutral Saturated calcium (°C) Oxalate Phthalate Borate phosphate hydroxide solution 1.666 4.003 6.984 9.464 13.423 1.668 3.999 6.951 9.395 13.207... -
Page 75: For More Information
For more information For more information ■ This manual describes pH measurement. For detailed information, see "The Story of pH and Water quality" on our website. This page 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. -
Page 76: 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 77 31, Miyanonishi-cho, Kisshoin Minami-ku, Kyoto 601-8306, Japan http://www.horiba-adt.jp For any questions regarding this product, please contact your local agency, or inquire from the following website. http://global.horiba.com/contact_e/index.htm...