horiba DS-71 Instruction Manual
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horiba DS-71 Instruction Manual

horiba DS-71 Instruction Manual

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Instruction Manual
COND METER
DS-71

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  • Page 1 Instruction Manual COND METER DS-71...
  • Page 3 ■ Warranty and Responsibility HORIBA, Ltd. warrants that the Product shall be free from defects in material and workmanship and agrees to repair or replace free of charge, at option of HORIBA, Ltd., any malfunctioned or damaged Product attributable to responsibility of HORIBA, Ltd.
  • 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 SAFETY OPERATION ■ 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 signal word is to be limited to the most extreme situations.

  • Page 7: Safety Precautions

    SAFETY OPERATION ■ Safety Precautions This section provides precautions to enable you to use 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 SAFETY OPERATION ■ Product Handling Information ● Operational precautions Only use the product including accessories for their intended ● purpose. Do not drop, crash, or give any physical impact on the instrument. ● Do not immerse the instrument into alcohol, organic solvent, strong ●...
  • Page 9 MANUAL INFORMATION ■ Description in This Manual This interprets the necessary points for correct operation and notifies the important points for handling the product. This indicates the part where to refer for information. HINT! This indicates reference information. ■ Original Language This is the English translation of an original Japanese document.

  • Page 10: Table Of Contents

    CONTENTS Chapter 1 About the DS-71 ..1 Chapter 2 Information of the DS-71 . . 2 2.1 Measurement Items ..... . . 2 2.2 Packing List .
  • Page 11 CONTENTS 3.3.3 Calibration Value Printing ..... 42 3.4 Measurement ......43 3.4.1 Measurement Value Hold .

  • Page 13: Chapter 1 About The Ds-71

    Chapter 1 About the DS-71 Chapter 1 About the DS-71 The desktop type COND meter DS-71 is optimized for laboratory measurement, and allows you to measure conductivity, resistivility, salinity, and TDS. It provides a comfortable measurement environment with the design easy to wipe clean without roughness on the surface, and the free-standing electrode stand and the custom LCD for ease of measurement.

  • Page 14: Chapter 2 Information Of The Ds-71

    Chapter 2 Information of the DS-71 2.1 Measurement Items Chapter 2 Information of the DS-71 Measurement Items Measurement item DS-71  Conductivity  Salinity  Resistivity  (Total Dissolved Solids)  Temperature HORIBA...

  • Page 15: Packing List

    Chapter 2 Information of the DS-71 2.2 Packing List Packing List The DS-71’s package includes the following. Electrodes are required for the measurement in addition to this package. If you want to buy an electrode, contact HORIBA sales representative. Product...

  • Page 16: Names And Functions

    Chapter 2 Information of the DS-71 2.3 Names and Functions Names and Functions 2.3.1 Names of Each Part Stand arm Display Stopper Stand base Operation key CH2 reference electrode CH2 measurement electrode CH2 temperature electrode Printer connector AC adapter connector...

  • Page 17: Display

    Chapter 2 Information of the DS-71 2.3 Names and Functions Connector for USB communication with a personal computer 2.3.2 Display Electrode status icon Printer connecting icon Data memory icon Setting mode Error No., USB icon Data No., Date Temperature HOLD...

  • Page 18: Operation Key

    Chapter 2 Information of the DS-71 2.3 Names and Functions 2.3.3 Operation Key This instrument employs capacitance switches. You can not operate them with thick gloves. Operate them with bare hands or thin rubber gloves. Operation key Function CAL key Starts/stops calibration or enters the calibration mode.

  • Page 19: Measurement (Meas) Flow Chart

    Chapter 2 Information of the DS-71 2.4 Measurement (MEAS) Flow Chart Measurement (MEAS) Flow Chart COND measurement MODE key Resistivity measurement MODE key Salinity measurement MODE key TDS measurement MODE key DS-71...

  • Page 20: Setting (Set) Flow Chart

    Chapter 2 Information of the DS-71 2.5 Setting (SET) Flow Chart Setting (SET) Flow Chart Temperature compensation ATC, MTC function setting ▲▼ key Automatic data memory ON, OFF setting ▲▼ key Sample ID setting ▲▼ key Conductivity S/cm, S/m, mS/cm unit setting ▲▼...

  • Page 21: Data (Data) Flow Chart

    Chapter 2 Information of the DS-71 2.6 Data (DATA) Flow Chart Data (DATA) Flow Chart Data memory ▲▼ key Data display ▲▼ key DS-71...

  • Page 22: Chapter 3 Basic Operation

    Chapter 3 Basic Operation 3.1 Preparation Chapter 3 Basic Operation Preparation 3.1.1 Assembling the Electrode Stand Attach the stand shaft to the stand base. Attach the stopper and the stand arm to the stand shaft. Stand shaft Stand arm Stopper Stand base HORIBA...

  • Page 23: Electrode Connection

    Insert the groove of electrode plug by fitting it with the socket pin of the instrument. If the pin and groove are misaligned, do not insert the plug with force. CH2 measurement electrode Turn the electrode connector to the right along the groove to plug the connector. DS-71...

  • Page 24: Connecting The Power Source

    If the temperature connector is unconnected or the connection is wrong, the MTC set temperature is displayed as the sample temperature. 3.1.3 Connecting the Power Source Insert the AC adapter cable by fitting with the connector socket of in the instrument. AC adapter connector HORIBA...

  • Page 25: Connecting And Setting The Printer

    ・ Make sure to power OFF the instrument before connecting a printer. ・ When you do not connect a printer with the instrument, disconnect the printer cable and put the rubber cap firmly on the connector sockets on the instrument. DS-71...

  • Page 26: Connecting The Personal Computer

    If you change the transfer formats, power OFF both of the instrument and the personal computer once, and then turn on them again. ・For the details of communication commands, register with our website and see the free download page of manuals. HORIBA...

  • Page 27: Settings

    Press the SET key on the measurement screen to enter the temperature compensation function set- ting screen. Press the ENTER key to enter the temperature compensation function change screen. Press the key to change ATC or MTC, and press the ENTER key. DS-71...
  • Page 28 If the sensor is not connected, the set value for MTC (default: 25C) is displayed. In Manual Temperature Compensation (MTC), the tem- perature sensor of the electrode is not used, and the solution temperature is entered manually. HORIBA...

  • Page 29: Auto Data Memory Setting

    ENTER key. If you select ON, press the key to select a digit and press the ▲ or ▼ key to change the value, and then press the ENTER key. Setting range: 2 seconds to 24 hours DS-71...

  • Page 30: Sample Id Setting

    Press the ENTER key to enter the sample ID change screen. Press the key to select digit and press the ▲ or ▼ key to change value, and press the ENTER key. Setting range: 0 to 9999 HORIBA...

  • Page 31: Conductivity Unit Setting

    ▲ or ▼ key to enter the conductivity unit setting screen. Press the ENTER key to enter the conductivity unit change screen. Press the key to select S/cm, S/m or mS/ , and press the ENTER key. DS-71...

  • Page 32: Conductivity Temperature Coefficient Setting

    Press the key to change ON or OFF, and press the ENTER key. Press the key to select digit and press the ▲ or ▼ key to change value, and ENTER key. Setting range: 0.00% to 10.00% HORIBA...

  • Page 33: Conductivity Cell Constant Setting

    For the SI unit (S/m) 10 → 100 → 1000 → 10 For the conventional units (S/cm, mS/cm 0.1 → 1 → 10 Press the ENTER key. DS-71...

  • Page 34: Salinity Unit Setting

    Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the salinity unit setting screen. Press the ENTER key to enter the salinity unit change screen. PPT or %, and Press the key to select press the ENTER key. HORIBA...

  • Page 35: Auto Printer Setting

    ▲ or ▼ key to enter the auto printer setting screen. Press the ENTER key to enter the auto printer set- ting change screen. Press the key to select ON or OFF, and press the ENTER key. DS-71...

  • Page 36: Maintenance

    Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. Press ENTER key to indicate the all LCD. HORIBA...
  • Page 37 Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. Press the ▲ or ▼ key to enter the printer test screen. DS-71...
  • Page 38 OFF automatically. Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. HORIBA...
  • Page 39 ▲ or ▼ key to change the value, and then press the ENTER key and press the ENTER key to return to the auto power off change screen. Setting range: 1 to 30 minutes DS-71...
  • Page 40 Press the ▲ or ▼ key to enter the date setting screen. Press the ENTER key to enter the year setting screen. Press the key to select a digit and press the ▲ or ▼ key to change the value, and then press the ENTER key. HORIBA...
  • Page 41 This operation is irreversible. We recommend printing out or saving data into a PC ("3.1.5 Connecting the Personal Computer" P.14) before this operation. Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. DS-71...
  • Page 42 Press the ENTER key to enter the memory data clear (Yes/No) screen. Press the key to select Yes, and press ENTER key to delete the memory data. When the deletion is completed, "End" is displayed. Press the ENTER key to return to the memory data clear screen. HORIBA...
  • Page 43 Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. Press the ▲ or ▼ key to enter the calibration data clear screen. DS-71...
  • Page 44 Press the ENTER key to enter the calibration data deleting (Yes/No) screen. Press the key to select Yes, and press ENTER key to delete the calibration data. When the deletion is completed, "End" is displayed. Press the ENTER key to return to the calibration data clear screen. HORIBA...
  • Page 45 Press the ▲ or ▼ key to enter the number of mem- ory data display screen. Press the ENTER key to display the number of the memory data currently saved in the instrument. Press the ENTER key to return to the number of memory data display screen. DS-71...

  • Page 46: Temperature Calibration

    ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. Press the ▲ or ▼ key to enter the temperature cali- bration screen. Press the ENTER key to enter the temperature dis- play value change screen. HORIBA...

  • Page 47: Setting Initialization

    Refer to "5.2 Default Settings" P.64 for default settings. Press the SET key on the measurement screen, and press the ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. DS-71...
  • Page 48 Press the ENTER key to enter the initializing set- tings (Yes/No) screen. Press the key to select Yes, and press ENTER key to initialize the settings. The initializing is complete when "End" is displayed. Press the ENTER key to return to the initializing set- tings screen. HORIBA...
  • Page 49 ▲ or ▼ key to enter the maintenance screen. Press the ENTER key to enter the maintenance item selecting screen. ▲ or ▼ Press the key to enter the password set- tings screen. Press the ENTER key to enter the password change screen. DS-71...
  • Page 50 ENTER key to return to the password change screen. Setting range: 0000 to 9999 If this setting is ON, password entry is required when you power ON the instrument. Enter the password and press the ENTER key. If you forget the password, contact HORIBA sales representative. HORIBA...

  • Page 51: Calibration

    Press the CAL key on the measurement screen is displayed to enter the calibration screen. Press the key to select digit and press the ▲ or ▼ key to change value, to set the value of the desired standard solution. DS-71...

  • Page 52: Salinity Calibration

    Press the CAL key to enter the salinity calibration screen. Press the key to select digit and press the ▲ or ▼ key to change value, to set the value of the desired standard solution. HORIBA...
  • Page 53 CAL key. The HOLD indicator blinks until the reading stabilizes. When the reading stabilizes, the HOLD indicator lights up and the reading is held. After the calibration is completed, press the MEAS key to return to the measurement screen. DS-71...

  • Page 54: Calibration Value Printing

    ● Printing at COND calibration ① Instrument model ① ② Serial number ② ③ Cell constant ③ Calibration data ④ ④ ● Printing at salinity calibration ① Instrument model ① ② Serial number ② ③ Calibration coefficient ③ Calibration data ④ ④ HORIBA...

  • Page 55: Measurement

    To cancel the HOLD state or to stop the stability judgment (HOLD blinking), press the MEAS key again. ● Stabilization Criteria Conductivity, resistivity, salinity, and TDS measurements: Display change in 10 seconds: within ±3 digit Temperature measurement: Temperature change in 10 seconds: within ±2C DS-71...

  • Page 56: Measurement Items Changing

    Chapter 3 Basic Operation 3.4 Measurement 3.4.2 Measurement Items Changing When the MODE key is pressed, measurement item can be changed. COND measurement MODE key Resistivity measurement MODE key Salinity measurement MODE key TDS measurement MODE key HORIBA...

  • Page 57: Auto Data Memory

    ・ The actual date of memory may have the difference of ±1 second from the time calculated based on the interval setting. ・ When the number of memory data exceeds 999, data memory is stopped and ERROR No.0010 is displayed. DS-71...

  • Page 58: Measurement Value Printing

    At HOLD: AUTO ① Instant value: INST Temperature ② ② compensation setting ③ At Manual mode: MTC ④ ⑤ At Auto mode: ATC Sample ID ③ ⑥ Instrument model ④ ⑦ Serial number ⑤ Cell constant ⑥ Temperature coefficient ⑦ HORIBA...
  • Page 59 HOLD condition ① At HOLD: AUTO ① Instant value: INST Temperature ② ② compensation setting ③ At Manual mode: MTC ④ ⑤ At Auto mode: ATC ⑥ Sample ID ③ Instrument model ④ Serial number ⑤ Temperature coefficient ⑥ DS-71...

  • Page 60: Resistivity Measurement Mode

    HOLD condition ① At HOLD: AUTO Instant value: INST ① Temperature ② compensation setting ② ③ At Manual mode: MTC ④ At Auto mode: ATC ⑤ Sample ID ③ ⑥ Instrument model ④ Serial number ⑤ Temperature coefficient ⑥ HORIBA...

  • Page 61: Data Operation

    Press the DATA key to enter the data operation screen. Press the ENTER key to enter the data memory screen. The measurement value and "IN" are alternately displayed. Press the ENTER key. The measurement data is stored into the memory. DS-71...

  • Page 62: Memory Data Display

    Press the ▲ or ▼ key to enter the memory data dis- play screen. The latest data is displayed. Press the key to switch between date display and DATA No/ID No. display. Press the ▲ or ▼ key to search past data. HORIBA...

  • Page 63: Memory Data Printing

    Memory number ① ① HOLD condition ② At HOLD: AUTO Instant value: INST ② Temperature ③ compensation setting ③ At Manual mode: MTC ④ At Auto mode: ATC ⑤ ⑥ Sample ID ④ Instrument model ⑤ Serial number ⑥ DS-71...
  • Page 64 Memory number ① ① HOLD condition ② At HOLD: AUTO Instant value: INST ② Temperature ③ ③ compensation setting ④ At Manual mode: MTC ⑤ At Auto mode: ATC ⑥ Sample ID ④ Instrument model ⑤ Serial number ⑥ HORIBA...

  • Page 65: Chapter 4 Maintenance And Troubleshooting

    Wash the inside of the electrode protective cap with pure water, then, after shaking out the water, fill the cap with enough pure water to soak the sponge. Place the electrode protective cap on the electrode. DS-71...

  • Page 66: Troubleshooting

    Data memory over The number of the memory data exceeds the limit of the memory. 0011 Cell constant out of COND: The cell constant is out of the range automatic calculation range. 000E Key operation Key operation is invalid. ERROR HORIBA...
  • Page 67 If the same error occurs again after the power ON. countermeasure is performed, contact HORIBA sales representative. The internal IC is Contact HORIBA sales representative. defective. ● ERROR No.0003 Unstable reading ERROR Definition The electric potential does not stabilize within three minutes.
  • Page 68 The printer is Replace the printer. defective. If the same error occurs again after the countermeasure is performed, contact HORIBA sales representative. ● ERROR No.0010 Data memory over Definition The number of the memory data exceeds the limit of the memory.
  • Page 69 Key operation is invalid. Cause Countermeasure Loose connection or Disconnect and reconnect the AC breaking of keys adapter, and press the ON/OFF key 10 seconds later. If the same error occurs again after the countermeasure is performed, contact HORIBA sales representative. DS-71...

  • Page 70: More Troubleshooting

    Countermeasure There is a motor or Measure at a place where no influence other device caus- from induction is given. ing electrical inter- Ground all AC-powered equipment ference. The electrode is Connect the electrode correctly. not connected cor- rectly. HORIBA...

  • Page 71: Lithium Battery Replacement

    Disconnect and reconnect the AC invalid. adapter, and press the ON/OFF key 10 seconds later. If the same error occurs again, seek repairs at contact HORIBA sales representative. The electrode con- Turn the power OFF, then turn it back ON nector is not again.
  • Page 72 If it is 50 k or more at the electrode is room temperature, replace the electrode. broken or shorted. The connection of Insert the temperature connector firmly. the temperature connector is failed. The instrument is Contact HORIBA sales representative. defective. HORIBA...
  • Page 73 Check the following points. ・ Is the printer turned ON? ・ Is an error occurred in printer? ・ Is the printing paper run out or clogged? ・ When the test print is made according to the manual, is it done correctly? DS-71...

  • Page 74: Chapter 5 Specifications

    Chapter 5 Specifications 5.1 Specifications Chapter 5 Specifications Specifications ● Measuring object Measuring Item Description DS-71 object Measuring  Thermistor method principle Measuring  0.0C to 100.0C range Temperature Display  0.1C resolution  Repeatability ±0.1C ±1 digit Measuring ...
  • Page 75 Chapter 5 Specifications 5.1 Specifications Measuring Item Description DS-71 object Measuring Conversion from  principle conductivity value Cell constant 100 m 　 0.00 •m to 199.9 k•m Measuring Cell constant 10 m  range 　 0.0 •m to 1.999 M•m...

  • Page 76: Default Settings

    Automatic temperature compensation compensation (ATC) Manual temperature 25C compensation value Auto power off Common Sample ID 0000 settings Calibration interval Password Auto data memory Auto print Unit Temperature coefficient 2.00%/C (ON) Conductivity Cell constant 1.000  100 m Salinity Unit HORIBA...

  • Page 77: Options

    Chapter 5 Specifications 5.3 Options Options This section lists spare and optional parts for the instru- ment. These parts are possible through HORIBA distributors. Place an order specifying their names, and part numbers. Part name Part number Remarks AC adapter,...
  • Page 79 For any question regarding this product, please contact your local agency, or inquire from the Customer Registration website (http://www.horiba.co.jp/register) February 2015 CODE: GZ0000260899B...

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