horiba LAQUA-DO2000 Instruction Manual
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horiba LAQUA-DO2000 Instruction Manual

Benchtop ph/orp/ion/do/bod meter
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Instruction Manual
Benchtop pH/ORP/Ion/DO/BOD Meter
LAQUA-DO2000
LAQUA-PD2000

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  • Page 1 Instruction Manual Benchtop pH/ORP/Ion/DO/BOD Meter LAQUA-DO2000 LAQUA-PD2000...
  • Page 3 HORIBA Advanced Techno Co., 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 Advanced Techno Co., Ltd., any malfunctioned or damaged product attributable to responsibility of HORIBA Advanced Techno Co., Ltd.
  • Page 4 MEMO...
  • Page 5 Regulations ■ Regulations • EU and UK Regulations • Conformable Standards This equipment conforms to the following standards: EMC: EN61326-1 Class B, Basic electromagnetic environment Safety: EN61010-1 RoHS: EN IEC 63000 9. Monitoring and control instruments including industrial monitoring and control instruments EMC: BS EN 61326-1 Class B, Basic electromagnetic environment...
  • Page 6 • Authorised Representative in EU Europe GmbH HORIBA Hans-Mess-Str.6, D-61440 Oberursel, Germany • Authorized Representative in UK HORIBA UK Limited Kyoto Close Moulton Park NN3 6FL Northampton, UK Tel: +44 01604 542500 • FCC Rules FCC Compliance Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 7 Regulations Note 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 8 Regulations Name and amount of hazardous substance used in a product 有害物质 Hazardous substances 多溴二苯醚 六价铬 多溴联苯 Poly 部件名称 汞 镉 Hexa- Poly 铅 Unit name Mer- Cad- bromo- Lead valent bromobi- cury mium diphenyl (Pb) chromium phenyl (Hg) (Cd) ether (Cr (VI)) (PBB)
  • Page 9 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.
  • Page 10 For Your Safety • [DEU] Sicherheitsinformation Lesen Sie vor der Verwendung des Produkts unbedingt diese Anleitung, um den ordnungsgemäßen und sicheren Betrieb des Produkts zu gewährleisten. Bewahren Sie die Anleitung sicher auf, damit sie bei Bedarf jederzeit zur Hand ist. Die Inhalt dieser Anleitung können ohne Vorankündigung geändert werden.
  • Page 11 For Your Safety • Ambiente di installazione Questo prodotto non è stati progettati per essere utilizzati in ambienti industriali, secondo la norma EN61326-1. In un ambiente industriale, le interferenze elettromagnetiche potrebbero causare un malfunzionamento del prodotto. Per utilizzare il prodotto in tali ambienti, all'utente potrebbe essere richiesto di adottare le contromisure necessarie.
  • Page 12 For Your Safety • [POL] Informacje dotyczące bezpieczeństwa Przed przystąpieniem do użytkowania tego produktu należy dokładnie zapoznać się z niniejszą instrukcją, aby zapewniona była prawidłowa i bezpieczna eksploatacja produktu. Instrukcję przechowywać w bezpiecznym miejscu, aby w razie potrzeby była zawsze dostępna. Treść...
  • Page 13 For Your Safety • [JPN] 安全情報 ご使用にな る前に、 本書を必ずお読み く だ さ い。 お読みにな っ た後は必要な と き に す ぐ に取 り 出せる よ う に大切に保管 し て く だ さ い。 本書に記載 さ れている内容は予告な く 変更 さ れる場合があ り ます。 あ らか じ めご了 承...
  • Page 14 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 immanency and hazardous situation. Read the precautions carefully as it contains important safety messages.
  • Page 15 Product Handling Information ■ Product Handling Information • Operational Precautions (instrument) • Only use the product including accessories for their intended purpose. • Do not drop or physically impact the instrument. • The instrument is made of solvent-resistant materials but that does not mean it is resistant to all chemicals.
  • Page 16 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. This indicates reference information.

  • Page 17: Table Of Contents

    Table of Contents ■ Product Overview ..............1 ● Package Content ............... 1 ● Key Features................2 ■ Basic Operations ..............6 ● Turning On the Instrument ............6 ● Connecting an Electrode ............6 ● Changing the Operation Mode ..........7 ●...
  • Page 18 Table of Contents ■ Setup ..................29 ● P1 pH Setup ................29 ● P1 Ion Setup ................34 ● P1 DO Setup ................39 ● P2 Data Setup ................46 ● P3 General Setup ..............50 ● P4 Clock Setup ................56 ■...

  • Page 19: Product Overview

    ■ Product Overview The LAQUA-DO2000 and LAQUA-PD2000 benchtop meters are optimized for laboratory measurement. The LAQUA-DO2000 benchtop meter allows you to measure dissolved oxygen (DO), biochemical oxygen demand (BOD), and temperature while LAQUA-PD2000 benchtop meter allows you to measure pH, ORP/mV, ion, DO, BOD, and temperature.

  • Page 20: Key Features

    Product Overview ● Key Features • Large monochrome LCD • Integrated electrode holder (up to 2 electrodes) that can be attached to either side of the meter • Simple user interface and single parameter display • 2000 Memory data • Real time clock •...
  • Page 21 Product Overview ● Display Name Function Displays the current operation mode (Setup, Calibration, Status Icon Measurement and Data mode) Parameters Displays the measured parameters like pH, mV, ION, DO Smiley icon and sound indicate value is stable for documentation in Auto Stable and Auto Hold modes Appears when the measured value display is stable and fixed in Auto Hold mode Temperature Display...
  • Page 22 Product Overview Name Function Displays the calibration method Displays the pH buffer groups, pH buffer auto calibration values, and DO auto calibration values ● Electrode Sensitivity Level Electrode Icon pH Average Ion Average DO Span Slope Slope Coefficient Excellent 95.0 to 105.0% 90.1 to 199.9% 0.670 to 1.300 Very Good...
  • Page 23 Product Overview ● Keypad Operation Keypad Name Function Switches from the measurement mode to the calibration mode. CAL key Starts calibration in the calibration mode. Switches from the operation mode to the measurement mode. MEAS key Releases the fixed measurement value mode in the auto hold mode and begins a fresh measurement.

  • Page 24: Basic Operations

    This section describes the basic operations such as turning on the instrument, connecting an electrode, and changing the operation modes and measurement parameters of LAQUA-DO2000 and LAQUA-PD2000 benchtop meters. ● Turning On the Instrument 1. Insert the AC adapter cable by fitting with the AC adapter jack.

  • Page 25: Changing The Operation Mode

    Basic Operations ● Changing the Operation Mode You can change the operation mode to four available modes depending on the purpose of use. The status icon indicates the current mode. Icon Name Function Measurement Performs measurement. mode Calibration mode Performs calibration. Data mode Displays the saved data.
  • Page 26 Basic Operations You can change the operation mode using the corresponding key: • Measurement mode: Press the key to change to the measurement mode. • Calibration mode: In the measurement mode, press the key to change to the calibration mode. •...

  • Page 27: Changing The Measurement Parameter

    ● Changing the Measurement Parameter The LAQUA-PD2000 benchtop meter measures pH, ORP/mV, ion, dissolved oxygen (DO), and biochemical oxygen demand (BOD) while the LAQUA-DO2000 benchtop meter measures DO and BOD. For measurement, an electrode corresponding to the measurement parameter is required.

  • Page 28: Calibration

    Calibration ■ Calibration This section describes the calibration procedures using the LAQUA-DO2000 and LAQUA-PD2000 benchtop meters and electrodes. ● pH Calibration Calibration is necessary for accurate pH measurement. To perform pH calibration using LAQUA-PD2000 benchtop meter, follow the procedure detailed below: Prerequisites •...
  • Page 29 pH Calibration Auto Calibration 1. After placing the pH electrode in pH buffer, press the CAL key. 2. The selected pH buffer group (USA, NIST, NIST2 or DIN) appears on the meter screen and meter starts checking various calibration values with a blinking on screen.
  • Page 30 pH Calibration Manual Calibration 1. After placing the pH electrode in pH buffer, press the CAL key. 2. The selected CUST pH buffer group appears on the meter screen. 3. Wait for the to stabilize. When it stabilizes, there will be a sound indicating that reading is stable.

  • Page 31: Orp/Mv Calibration

    ORP Calibration ● ORP/mV Calibration Calibration is necessary for accurate ORP measurement. To perform ORP calibration using LAQUA-PD2000 benchtop meter, follow the procedure detailed below: Prerequisites • Clean the ORP electrode with DI (deionized) water and wipe it with tissue paper. •...
  • Page 32 ORP Calibration Calibration 1. After placing the ORP electrode in ORP standard solution, press the key to switch to mV mode. 2. Press the key. 3. Meter starts reading mV values. 4. Wait for the to stabilize. When it stabilizes, there will be a sound indicating that reading is stable.

  • Page 33: Ion Calibration

    Ion Calibration ● Ion Calibration Calibration is necessary for accurate ion measurement. To perform ion calibration using LAQUA-PD2000, follow the procedure detailed below: Prerequisites • If ion electrode is new or stored for long period, condition it first. Refer to the ion electrode manual for the electrode preparation and conditioning procedures.
  • Page 34 Ion Calibration • To abort an ongoing calibration process at any point of time, press the key. • It is recommended to clear the previous calibration data before performing calibration. For erasing the calibration data, refer to “P1.3 Calibration Clear Setup” on page 38.
  • Page 35 Ion Calibration Calibration 1. After placing the ion electrode in standard solution, press the key. 2. Wait for to stabilize. When it stabilizes, there will be a sound indicating that reading is stable. 3. Press keys to enter the standard solution concentration and adjust the unit.

  • Page 36: Do Calibration

    DO Calibration ● DO Calibration Calibration is necessary for accurate dissolved oxygen (DO) measurement. Two calibration modes are available in LAQUA-DO2000 and LAQUA-PD2000 benchtop meters for calibration. • DO saturation mode (%) • DO concentration mode (mg/L) To perform various DO calibrations, follow the procedures detailed below: Note Set the barometric pressure (default 101.3 kPa) before calibration for accurate measurement.
  • Page 37 DO Calibration Air Calibration 1. Hold the DO electrode still in clean air and press the key. 2. Wait for to stabilize. When it stabilizes, there will be a sound indicating that reading is stable. 3. Press the ENT key to confirm and save calibration data. 4.
  • Page 38 DO Calibration 5. Meter displays CAL DONE indicating end of the zero calibration procedure. The 0% icon lights up in measurement mode. Note • Calibration performed with zero DO solution is referred as zero calibration. • Prepare zero DO solution by adding 2 g sodium sulfite (Na ) to 1000 mL deionized water and stirring the mixture to completely dissolve the Na ●...
  • Page 39 DO Calibration Note • Calibrate in the DO concentration mode in the order from high concentration solution to a low concentration solution. For the first calibration point, you may perform calibration in air- saturated water or in water with known DO concentration. For the second calibration point, you may perform calibration in zero DO solution.
  • Page 40 DO Calibration 5. Meter displays CAL done indicating end of the calibration procedure. Electrode icon and 1 Pt light up in measurement mode. Calibration in Water with Zero DO Concentration 1. After placing the DO electrode in zero DO solution, press the key.

  • Page 41: Temperature Calibration

    Temperature Calibration ● Temperature Calibration Temperature calibration is required to accurately match electrode to the meter. Check the temperature reading and if it is acceptable, no temperature calibration is required. If you need to calibrate, please follow the procedure detailed below: Prerequisites •...
  • Page 42 Temperature Calibration Calibration 1. After placing the electrode in a solution with known temperature, press the key. 2. Press the key to switch to temperature calibration mode. Meter displays measured temperature value. 3. Use the keys to adjust the temperature to the required value. 4.

  • Page 43: Bod Measurement

    BOD Measurement ■ BOD Measurement The 5-day biochemical oxygen demand (BOD) or BOD test procedure consists of filling an airtight bottle of specified size with diluted and seeded sample to overflowing and incubating it for 5 days at 20°C. Dissolved oxygen (DO) is measured initially and after incubation, and the BOD is computed from the difference between initial and final DO.
  • Page 44 BOD Measurement Measurement 1. Insert the DO electrode into the BOD bottle filled with sample and start the stirrer. Allow the temperature of the DO electrode to equilibrate with the sample for few minutes. 2. If the meter is set to AS (Auto Stable) reading stability mode, wait for the to stabilize.

  • Page 45: Data

    Data Capture and Storage ■ Data This section describes the procedures for storing data into the LAQUA-DO2000 and LAQUA-PD2000 benchtop meters and viewing them as well as transferring data from the meter to a PC. ● Data Capture and Storage ●...

  • Page 46: Data Transfer

    Data Transfer ● Data Transfer ● Transferring Data to PC Connect the instrument to a PC and Data Acquisition Software (DAS) using the phono to USB cable to transfer stored data. 1. Connect the phono jack of the cable to the back of the instrument and the USB connector to the communication port of the PC.

  • Page 47: Setup

    Setup ■ Setup This section describes the setups in LAQUA-DO2000 and LAQUA-PD2000 benchtop meters. ● P1 pH Setup Using pH setup you can: • Set pH buffer group • Set pH resolution • Set calibration alarm • Erase calibration data...
  • Page 48 pH Setup ● P1.1 Buffer Setup 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the ENT key, default BUFF USA appears. 4. Use the keys to change the pH buffer group to NIST, NIST2, DIN or CUST. 5.
  • Page 49 pH Setup ● P1.2 Resolution Setup 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the key, P1.2 RESOL screen appears. 4. Press the ENT key, default resolution 0.001 screen appears. 5.
  • Page 50 pH Setup ● P1.3 Calibration Alarm Setup 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the key, P1.2 RESOL screen appears. 4. Press the key, P1.3 C.ALR screen appears. 5.
  • Page 51 pH Setup ● P1.4 Calibration Clear Setup 1. Press the key, P1 PH screen appears. 2. Press the ENT key, P1.1 BUFF screen appears. 3. Press the key, P1.2 RESOL screen appears. 4. Press the key, P1.3 C.ALR screen appears. 5.

  • Page 52: P1 Ion Setup

    Ion Setup ● P1 Ion Setup Using ion setup you can: • Select ion concentration unit • Select ion electrode type or set the valence of the ion to be measured • Erase calibration data To set the ion function of LAQUA-PD2000, follow the procedure detailed below: Prerequisites •...
  • Page 53 Ion Setup ● P1.1 Ion Concentration Unit Setup 1. Press the key, P1 ION screen appears. 2. Press the ENT key, P1.1 UNIT screen appears. 3. Press the ENT key, default μg/L ↔ mg/L ↔ g/L appears. 4. Use the keys to change the ion concentration unit to ppm ↔...
  • Page 54 Ion Setup ● P1.2 Ion Electrode Type Setup 1. Press the key, P1 ION screen appears. 2. Press the ENT key, P1.1 UNIT screen appears. 3. Press the key, P1.2 TYPE screen appears. 4. Press the ENT key, default NH3 (Ammonia) ion electrode type appears. 5.
  • Page 55 Ion Setup...
  • Page 56 Ion Setup ● P1.3 Calibration Clear Setup 1. Press the key, P1 ION screen appears. 2. Press the ENT key, P1.1 UNIT screen appears. 3. Press the key, P1.2 TYPE screen appears. 4. Press the key, P1.3 C.CLR screen appears. 5.

  • Page 57: P1 Do Setup

    DO Setup ● P1 DO Setup Using DO setup you can: • Set salinity value • Set barometric pressure • Set BOD • Erase calibration data To set the DO function, follow the procedure detailed below: Prerequisites • Switch on the meter. •...
  • Page 58 DO Setup ● P1.1 Salinity Value Setup 1. Press the key, P1 DO screen appears. 2. Press the ENT key, P1.1 SAL screen appears. 3. Press the ENT key, default SAL 00.0 ppt appears. 4. Use the keys to adjust the salinity value in between 00.0 to 40.0 ppt.
  • Page 59 DO Setup ● P1.2 Barometric Pressure Setup 1. Press the key, P1 DO screen appears. 2. Press the ENT key, P1.1 SAL screen appears. 3. Press the key, P1.2 PRES screen appears. 4. Press the ENT key, default PRES 101.3 kPa appears. 5.
  • Page 60 DO Setup ● P1.3 BOD Setup Without Seed Correction 1. Press the key, P1 DO screen appears. 2. Press the ENT key, P1.1 SAL screen appears. 3. Press the key, P1.2 PRES screen appears. 4. Press the key, P1.3 BOD screen appears. 5.
  • Page 61 DO Setup With Seed Correction 1. Press the key, P1 DO screen appears. 2. Press the ENT key, P1.1 SAL screen appears. 3. Press the key, P1.2 PRES screen appears. 4. Press the key, P1.3 BOD screen appears. 5. Press the ENT key, default BOD OFF screen appears.
  • Page 62 DO Setup 14. Press the ENT key, P1.3 BOD screen appears.This indicates completion of BOD setup.
  • Page 63 DO Setup ● P1.4 Calibration Clear Setup 1. Press the key, P1 DO screen appears. 2. Press the ENT key, P1.1 SAL screen appears. 3. Press the key, P1.2 PRES screen appears. 4. Press the key, P1.3 BOD screen appears. 5.

  • Page 64: P2 Data Setup

    Data Setup ● P2 Data Setup Using data setup, you can: • Set data log interval • Print data log • Erase data log To set the data function, follow the procedure detailed below: Prerequisites • Switch on the meter. •...
  • Page 65 Data Setup ● P2.1 Data Log Interval Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the ENT key, P2.1 LOG screen appears. 4. Press the ENT key, default ---- log interval appears.
  • Page 66 Data Setup ● P2.2 Print Data Log Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the ENT key, P2.1 LOG screen appears. 4. Press the key, P2.2 PRINT screen appears.
  • Page 67 Data Setup ● P2.3 Data Log Clear Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press key, P2 DATA screen appears. 3. Press the ENT key, P2.1 LOG screen appears. 4. Press the key, P2.2 PRINT screen appears. 5.

  • Page 68: P3 General Setup

    General Setup P3 General Setup ● Using general setup, you can: • Set reading stability mode • Set auto shut-off time • Set temperature unit • Set password for setup mode • Reset the meter To set the general function, follow the procedure detailed below: Prerequisites •...
  • Page 69 General Setup ● P3.1 Reading Stability Mode Setup Auto Stable (AS) Mode - The meter shows live readings; blinks until reading is stable. Auto Hold (AH) Mode - The meter locks the stable reading; blinks until reading is stable and then lights up.
  • Page 70 General Setup ● P3.2 Auto Shut-off Time Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the ENT key, P3.1 STBLE screen appears.
  • Page 71 General Setup ● P3.3 Temperature Unit Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the key, P3.1 STBLE screen appears. 5.
  • Page 72 General Setup ● P3.4 Password Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the ENT key, P3.1 STBLE screen appears. 5.
  • Page 73 General Setup ● P3.5 Reset Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the ENT key, P3.1 STBLE screen appears. 5.

  • Page 74: P4 Clock Setup

    Clock Setup ● P4 Clock Setup Using real-time clock setup, you can set date and time. Follow the procedure detailed below: Prerequisites • Switch on the meter. • Keep the meter in either pH or ion or DO mode. Note •...
  • Page 75 Clock Setup ● P4.1 Date Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the key, P4 RTC screen appears. 5.
  • Page 76 Clock Setup ● P4.2 Time Setup 1. Press the key, P1 PH / ION / DO screen appears. 2. Press the key, P2 DATA screen appears. 3. Press the key, P3 GEN screen appears. 4. Press the key, P4 RTC screen appears. 5.

  • Page 77: Maintenance And Storage

    Maintenance and Storage ■ Maintenance and Storage This section describes maintenance and storage 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 78: Maintenance And Storage Of Electrodes

    Maintenance and Storage ● Maintenance and Storage of Electrodes This section describes an overview of the procedures for maintenance and storage of pH, ORP, ion and DO electrodes. For the detailed procedures, refer to the instruction manual for each electrode. ●...
  • Page 79 Maintenance and Storage ● Daily storage of pH and ORP electrodes If the electrode becomes dry, the response will be slow. Store in a moist atmosphere. Follow the steps below to properly store the electrode: 1. Wash the electrode well with pure water (or deionized water) to remove sample completely, and close the internal solution filler port.
  • Page 80 Maintenance and Storage ● Daily storage of DO Electrode The electrode should remain connected to the meter. To store the electrode without the meter, follow the below procedure. 1. Remove the electrode from the connector on the meter. 2. Wash the electrode well with tap water, then dry it with soft cloth.

  • Page 81: Error Messages And Troubleshooting

    Error Messages and Troubleshooting ■ Error Messages and Troubleshooting ● Error Messages This section describes the causes of typical errors and the actions to be taken to resolve respective errors. Check these before contacting us. If ERR is displayed while you are using the instrument, refer to the table below: Error Definition Cause and Solution...
  • Page 82 Error Messages and Troubleshooting Error Definition Cause and Solution UNDR RANGE Under range Entered value is outside the setting range. Please confirm the setting range and enter OVER RANGE Over range value correctly. The maximum number of calibration points that Calibration limit CAL LMT can be calibrated has been exceeded.
  • Page 83 Error Messages and Troubleshooting < Problem with the sample > Cause How to solve problem The electrode must be immersed up to the liquid Electrode is not immersed enough to junction. cover liquid junction. As a guide, immerse to at least 3 cm from the tip of the electrode.
  • Page 84 Error Messages and Troubleshooting Cause How to solve problem The electrode must be immersed up to the liquid Electrode is not immersed enough to junction. cover liquid junction. As a guide, immerse to at least 3 cm from the tip of the electrode.
  • Page 85 Error Messages and Troubleshooting Swelling of keypad Cause How to solve problem To eliminate the pressure difference between the Using the instrument at high elevation inside and outside of the instrument, briefly open and or other location where the air pressure then close the serial connector cover.

  • Page 86: Appendix

    Technical Note ■ Appendix This section describes the technical information, printer formats, and specifications of the instrument. ● Appendix 1 pH calibration can be performed according to several buffer standards. The most common standard is the US buffer standard. The default setup is US buffer standard. Alternative standards that can be chosen are NIST, NIST2, DIN and CUST (Custom).
  • Page 87 Technical Note < NIST > Temp. (°C) pH 1.68 pH 4.01 pH 6.86 pH 9.18 pH 12.46 1.67 4.01 6.98 9.46 13.42 1.67 4.01 6.95 9.39 13.21 1.67 4.00 6.92 9.33 13.00 1.67 4.00 6.90 9.27 12.81 1.68 4.00 6.88 9.22 12.63 1.68...
  • Page 88 Technical Note < DIN > Temp. (°C) pH 1.09 pH 3.06 pH 4.65 pH 6.79 pH 9.23 pH 12.75 1.08 3.10 4.67 6.89 9.48 13.37 1.09 3.10 4.66 6.87 9.43 13.37 1.09 3.10 4.66 6.84 9.37 13.37 1.09 3.08 4.65 6.82 9.32 13.17...
  • Page 89 Technical Note Saturated DO levels in water at various temperatures ISO17289 (JIS K0102) Temp. Saturated Temp. Saturated Temp. Saturated Temp. Saturated (°C) (°C) (°C) (°C) (mg/L) (mg/L) (mg/L) (mg/L) 14.22 11.03 8.92 7.43 13.83 10.78 8.74 7.31 13.46 10.54 8.58 7.18 13.11 10.31...
  • Page 90 Technical Note BOD Computation A. Without Seed Correction , mg/L = (D where: = DO of diluted sample immediately after preparation, mg/L, = DO of diluted sample after 5-day incubation at 20°C, mg/L, = volume of the respective test bottle, mL, and = volume of sample in the respective test bottle, mL B.
  • Page 91 Printout Summary ● Appendix 2 Printer Format - Measurement Relative mV...
  • Page 92 Printout Summary DO (%)
  • Page 93 Printout Summary DO (mg/L)
  • Page 94 Printout Summary Printer Format - Data Log...
  • Page 95 Printout Summary Printer Format - Calibration...
  • Page 96 Printout Summary DO (%) DO (mg/L)
  • Page 97 Meter Specifications ● Meter Specifications Specifications LAQUA-DO2000 DO/BOD/Temp (°C/°F) LAQUA-PD2000 pH/ORP/Ion/DO/BOD/Temp (°C/°F) pH Range -2.000 to 20.000 pH Resolution 0.1 / 0.01 / 0.001 pH Accuracy ± 0.003 pH pH Buffer Groups USA, NIST, NIST2, DIN, Custom Calibration Points Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom) ORP Range ±...
  • Page 98 Software Upgrade PC / Printer Communication Phono jack (USB / RS232) Meter Inputs LAQUA-DO2000: BNC, phono (ATC), DC sockets LAQUA-PD2000: 2 x BNC, 2 x phono (ATC), DC sockets Display 5" Custom LCD with 320 segments and backlight Power Rating AC Adapter...
  • Page 100 2 Miyanohigashi-cho, Kisshoin, Minami-ku, Kyoto, 601-8551, 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 Local: M004374 P/N: 3200947008 GZ: 0000671681...

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