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Chapter 3 Basic Operation

3.4 Measurement

44

HORIBA

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

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Summary of Contents for DS-71

Page 1: ...Instruction Manual COND METER DS 71...

Page 2: ...attributable to repair or modification by any person not authorized by HORIBA Ltd Any malfunction or damage attributable to the use in an environment not specified in this manual Any malfunction or d...

Page 3: ...ymbol with underbar shown on the product or accompanying documents indicates the product requires appropriate treatment collection and recycle for waste electrical and electronic equipment WEEE under...

Page 4: ...ese limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio fre...

Page 5: ...is to be limited to the most extreme situations This indicates a potentially hazardous situation which if not avoided could result in death or serious injury This indicates a potentially hazardous si...

Page 6: ...essages WARNING Do not use an unspecified AC adapter Otherwise it may heat up or be ignited resulting in a fire or an accident Do not disassemble or modify the meter Otherwise it may heat up or be ign...

Page 7: ...the cable it may cause a breakage The touch panel is capacitance type Make sure to turn OFF the power before cleaning the panel If you wipe it with the power ON it may cause instrument malfunction RS...

Page 8: ...nual This interprets the necessary points for correct operation and notifies the important points for handling the instrument This indicates the part of where to refer the information HINT This indica...

Page 9: ...nd 10 3 1 2 Electrode Connection 11 3 1 3 Connecting the Power Source 12 3 1 4 Connecting and Setting the Printer 13 3 1 5 Connecting the Personal Computer 14 3 2 Settings 15 3 2 1 Temperature Compens...

Page 10: ...nting 46 3 5 Data Operation 49 3 5 1 Data Memory of Measurement Value 49 3 5 2 Memory Data Display 50 3 5 3 Memory Data Printing 51 Chapter 4 Maintenance and Troubleshooting 53 4 1 Conductivity Electr...

Page 11: ...mized 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 roug...

Page 12: ...Information of the DS 71 2 1 Measurement Items 2 HORIBA Chapter 2 Information of the DS 71 2 1 Measurement Measurement item DS 71 Conductivity Salinity Resistivity TDS Total Dissolved Solids Temperat...

Page 13: ...1 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 Quantity Main uni...

Page 14: ...mes and Functions 4 HORIBA 2 3 Names and Functions 2 3 1 Names of Each Part Stand arm Stand base Operation key Stopper Display CH2 reference electrode CH2 measurement electrode CH2 temperature electro...

Page 15: ...2 Information of the DS 71 2 3 Names and Functions DS 71 5 2 3 2 Display Setting mode Error No Data No Date HOLD indicator Measuring parameter Calibration status Electrode status icon Printer connect...

Page 16: ...ing mode DATA key Enters the data operation mode Printouts calibration value SET key Enters the setting mode Cancels the setting values of the setting mode MODE key Toggles the measurement items key k...

Page 17: ...Information of the DS 71 2 4 Measurement MEAS Flow Chart DS 71 7 2 4 Measurement COND measurement MODE key Resistivity measurement MODE key Salinity measurement MODE key TDS measurement MODE key MEAS...

Page 18: ...0 cm Input range 0 700 to 1 300 Salinity unit setting PPT key Temperature compensation function setting ATC MTC key Automatic data memory setting key ON OFF key Sample ID setting Automatic printout se...

Page 19: ...Chapter 2 Information of the DS 71 2 6 Data DATA Flow Chart DS 71 9 2 6 Data Data memory key Data display key DATA Flow Chart...

Page 20: ...ation 10 HORIBA Chapter 3 Basic Operation 3 1 Preparation 3 1 1 Assembling the Electrode Stand 1 Attach the stand shaft to the stand base 2 Attach the stopper and the stand arm to the stand shaft Stan...

Page 21: ...trode CH2 temperature electrode Electrode connector 1 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 plu...

Page 22: ...Insert the temperature connector into the jack socket on the instrument CH1 temperature electrode If the temperature connector is unconnected or the connection is wrong the MTC set temperature is dis...

Page 23: ...nt Printer connector The following printer is possible Printer CITIZEN CBM 910 24RJ120 V plain paper type Parts No 3014030146 CITIZEN CBM 910 24RJ230 V plain paper type Parts No 3014030147 Optional pr...

Page 24: ...omputer Personal computer communication connector Use proprietary cables to connect with a personal computer Proprietary cable Parts name USB cable 1 m Parts No 3200373941 Make sure that the transfer...

Page 25: ...ress the SET key during setting or after pressing the ENTER key the settings are cancelled 3 2 1 Temperature Compensation Function Setting You can perform temperature compensation for conductivity ele...

Page 26: ...tic Temperature Compensation ATC the instrument detects the solution temperature When the temperature sensor is connected the current tempera ture of the solutions is displayed automatically If the se...

Page 27: ...easurement screen and press the or key to enter the auto data memory setting screen 2 Press the ENTER key to enter the auto data memory change screen 3 Press the or key to change ON or OFF and press t...

Page 28: ...ata at the data memory and it allows you to search data easily 1 Press the SET key on the measurement screen and press the or key to enter the sample ID setting screen 2 Press the ENTER key to enter t...

Page 29: ...ong S cm S m and mS cm FIX When mS cm FIX is selected the unit is fixed to mS cm 1 Press the SET key on the measurement screen and press the or key to enter the conductivity unit setting screen 2 Pres...

Page 30: ...to 10 00 The default is 2 00 1 Press the SET key on the measurement screen and press the or key to enter the conductivity unit setting screen 2 Press the ENTER key to enter the conductivity tem perat...

Page 31: ...ant written on the label of the electrode 1 Press the SET key on the measurement screen and press the or key to enter the conductivity cell constant setting screen 2 Press the ENTER key to enter the c...

Page 32: ...ing range 0 700 to 1 300 3 2 7 Salinity Unit Setting You can select the unit of salinity measurement between PPT and 1 Press the SET key on the measurement screen and press the or key to enter the sal...

Page 33: ...executed at the following occasions You perform data memory during measurement Calibration or check is completed in the calibration mode 1 Press the SET key on the measurement screen and press the or...

Page 34: ...screen helps you to use the instrument in good conditions LCD Check You can check the LCD 1 Press the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the...

Page 35: ...ecting screen Printer Test You can check the printer connection and printout operation 1 Press the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the EN...

Page 36: ...ower Off Setting You can set ON OFF of the auto power off function When this function is ON and no key operations are performed for the set period the instrument is powered OFF automatically 1 Press t...

Page 37: ...ENTER key to enter the auto power off change screen 5 Press the or key to change ON or OFF and press the ENTER key 6 P ress the or key to select a digit and press the or key to change the value and th...

Page 38: ...the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the ENTER key to enter the maintenance item selecting screen 3 Press the or key to enter the date se...

Page 39: ...or key to change the value for hour and minute setting and press the ENTER key to return to the date setting screen Memory Data Clearing You can delete the memory data of the instrument This operatio...

Page 40: ...n 3 Press the or key to enter the memory data clear screen 4 Press the ENTER key to enter the memory data clear Yes No screen 5 Press the or key to select Yes and press ENTER key to delete the memory...

Page 41: ...onductivity and salinity to initialize them Note that this operation is irreversible 1 Press the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the ENTE...

Page 42: ...surement item to be deleted 5 Press the ENTER key to enter the calibration data deleting Yes No screen 6 Press the or key to select Yes and press ENTER key to delete the calibration data When the dele...

Page 43: ...on the measurement screen and press the or key to enter the maintenance screen 2 Press the ENTER key to enter the maintenance item selecting screen 3 Press the or key to enter the number of mem ory da...

Page 44: ...r of an electrode 1 Press the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the ENTER key to enter the maintenance item selecting screen 3 Press the or...

Page 45: ...s the ENTER key to return to the temperature calibra tion screen Setting Initialization The settings are initialized Refer to 5 2 Default Settings P 64 for default settings 1 Press the SET key on the...

Page 46: ...ng set tings screen 4 Press the ENTER key to enter the initializing set tings Yes No screen 5 Press the or key to select Yes and press ENTER key to initialize the settings The initializing is complete...

Page 47: ...a or operating acci dentally to change settings delete memory data etc 1 Press the SET key on the measurement screen and press the or key to enter the maintenance screen 2 Press the ENTER key to enter...

Page 48: ...a digit and press the or key to change the value and then press the ENTER key and press the ENTER key to return to the password change screen Setting range 0000 to 9999 If this setting is ON password...

Page 49: ...r the current electrode 1 Prepare the potassium chloride standard solution Refer to JIS K 0400 for the preparative method 2 Wash the electrode with pure water deionized and wipe it off by filter paper...

Page 50: ...ity Calibration You can perform 1 point calibration using a salinity stan dard solution 1 Prepare the electrode Wash the electrode with pure water deionized and wipe it off by filter paper or tissue p...

Page 51: ...e indication value and press the CAL key The HOLD indicator blinks until the reading stabilizes When the reading stabilizes the HOLD indicator lights up and the reading is held 7 After the calibration...

Page 52: ...nnected correctly Refer to 3 1 4 Connecting and Setting the Printer P 13 2 Press the DATA key during calibration HOLD or calibration error The currently displayed data is printed out Printing examples...

Page 53: ...is displayed in the instantaneous measurement and the HOLD indicator blinks Then when the value is stable the HOLD indicator lights up and the value is held To cancel the HOLD state or to stop the sta...

Page 54: ...Measurement 44 HORIBA 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...

Page 55: ...Auto LOG is displayed on the screen 2 Press the ENTER key Auto LOGGING is displayed on the screen and the auto data memory function starts 3 To stop the auto data memory press the ENTER key Do not pow...

Page 56: ...ed in the calibration mode 1 Check that the printer settings and connection are correctly Refer to 3 1 4 Connecting and Setting the Printer P 13 2 Press the key in the measurement mode or HOLD state T...

Page 57: ...mode MTC At Auto mode ATC Sample ID Instrument model Serial number Calibration coefficient Temperature coefficient alinity measurement mode TDS measurement mode HOLD condition At HOLD AUTO Instant va...

Page 58: ...easurement 48 HORIBA Resistivity measurement mode HOLD condition At HOLD AUTO Instant value INST Temperature compensation setting At Manual mode MTC At Auto mode ATC Sample ID Instrument model Serial...

Page 59: ...be stored into the instrument memory Refer to 3 4 3 Auto Data Memory P 45 for automatic data memory 1 Press the DATA key to enter the data operation screen 2 Press the ENTER key to enter the data memo...

Page 60: ...ata can be displayed on the screen 1 Press the DATA key to enter the data operation mode 2 Press the or key to enter the memory data dis play screen 3 The latest data is displayed 4 Press the or key t...

Page 61: ...asurement data is printed out COND measurement mode Memory number HOLD condition At HOLD AUTO Instant value INST Temperature compensation setting At Manual mode MTC At Auto mode ATC Sample ID Instrume...

Page 62: ...erature compensation setting At Manual mode MTC At Auto mode ATC Sample ID Instrument model Serial number alinity measurement mode TDS measurement mode Memory number HOLD condition At HOLD AUTO Instan...

Page 63: ...to take appropriate countermeasures 4 1 Conductivity Electrode Maintenance Refer to the electrode operation manuals for the mainte nance operations of each electrode Long term storage When an electro...

Page 64: ...hand corner of the screen 4 2 1 Error Message Chart ERROR No Message Definition 0001 Memory ERROR Data cannot be read from or written to the internal memory 0003 Unstable reading ERROR The electric po...

Page 65: ...HORIBA sales representative ERROR No 0003 Unstable reading ERROR Definition The electric potential does not stabilize within three minutes Cause Countermeasure This is caused by the effect of the samp...

Page 66: ...nter connection and con nect the instrument and printer again The printer is defective Replace the printer If the same error occurs again after the countermeasure is performed contact HORIBA sales rep...

Page 67: ...t the end of the useful life Replace the electrode Improper standard solution Prepare new standard solution ERROR No 000E Key operation ERROR Definition Key operation is invalid Cause Countermeasure L...

Page 68: ...electrode Cause Countermeasure There are air bub bles on the elec trode Shake the electrode to remove the air bubbles Plating has sepa rated Replace the electrode When there is a problem with the ins...

Page 69: ...es representative The electrode con nector is not attached correctly Turn the power OFF then turn it back ON again The electrode is defective Replace the electrode The pH meter is defective Contact HO...

Page 70: ...onnect the electrode If the displayed measurement value is near 0 the instrument is normal The temperature display blinks The temperature display is fixed at 25 C The temperature measurement value is...

Page 71: ...he 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 The setti...

Page 72: ...Thermistor method Measuring range 0 0 C to 100 0 C Display resolution 0 1 C Repeatability 0 1 C 1 digit Conductivity Measuring principle 2 AC bipolar method Measuring range Cell constant 100 m 1 0 00...

Page 73: ...9 k m Cell constant 10 m 1 0 0 m to 1 999 M m Cell constant 1000 m 1 0 000 m to 19 99 k m Display resolution 0 05 of full scale Repeatability 0 5 1 digit of full scale Salinity Measuring principle Co...

Page 74: ...ngs Temperature compensation Automatic temperature compensation ATC Manual temperature compensation value 25 C Auto power off OFF Sample ID 0000 Calibration interval OFF Password OFF Auto data memory...

Page 75: ...014031951 AC adapter Cable EU 230 V 3014031952 Plain paper printer Printer USA 120 V 3014030146 Printer cable sold separately Printer EU 230 V 3014030147 Printer cable 3014030148 1 5 m Roll paper 3014...

Page 76: ......

Page 77: ...For any question regarding this product please contact your local agency or inquire from the Customer Registration website http www horiba com register 1st edition October 2011 CODE GZ0000260899...

Page 78: ......

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