User’sManualIM 12D03D02-01EModel SC72Personal Conductivity MeterIM 12D03D02-01E3rd Edition
IM 12D03D02-01E1-51. Outline1.5 Component Names and FunctionsPERSONALSC METER2004.SC72S1.0E000001MODELNo.STYLESensor cable connectorDisplayKey swit
IM 12D03D02-01E1-61. Outline1.6 Sensor Part Names and FunctionsFour types of sensors are available for use with the Model SC72 Personal Conductivity
IM 12D03D02-01E1-71. OutlineF010602.EPSSensor for high purity water measurementOuter electrode(SUS316 stainless seel)Outer electrode connection(SUS31
IM 12D03D02-01E1-81. Outline1.7 Options (Available Separately)The following options are available for the Personal Conductivity Meter for yourconven
IM 12D03D02-01E2-12. Preparation2. Preparation2.1 Installing the BatteriesInstall the batteries first.CAUTIONSelect a relatively moisture-free loca
IM 12D03D02-01E2-22. Preparation2.2 Connecting Sensor CableConnect the sensor cable as shown below.CAUTIONSelect a relatively moisture-free location
IM 12D03D02-01E2-32. Preparation2.3 Setting Date and TimeAfter installing the batteries, set the date and time. Note that if the power is turned off
IM 12D03D02-01E2-42. Preparation2.4 Setting Temperature UnitDefault temperature units are 8C. To change to 8F, refer to Sec. 4.3 (13) Set temperatur
IM 12D03D02-01E2-52. PreparationF020501.EPSF/ENTF/ENTF/ENTMEASfor Function modefor C.C panelto enter C.Cselect C.CYou can abort this procedure at any
IM 12D03D02-01E2-62. Preparation2.6 Setting Temperature Compensation CoefficientAs described in Section 7.3, liquid conductivity varies with liquid
1PrefaceIM 12D03D02-01E3rd Edition: Aug. 2009 (YK)All Rights Reserved, Copyright © 2004, Yokogawa Electric CorporationPrefaceBefore using the Model SC
IM 12D03D02-01E2-72. Preparation• Set the temperature compensation coefficient F020601.EPSFor NaCl solutions Manual settingSet the temperaturecompens
IM 12D03D02-01E2-82. Preparation
IM 12D03D02-01E3-13. Measurement3. Measurement3.1 Precautions(1) Be sure to check that the cell constant and the temperature coefficient are setcor
IM 12D03D02-01E3-23. Measurement3.2 Measurement ProceduresDipping sensor into liquidTo help avoid errors due to air bubbles around the sensor elemen
IM 12D03D02-01E3-33. Measurement3.3 Measurement PanelImmerse the sensor into the liquid to be measured to display the liquid conductivity onthe LCD
IM 12D03D02-01E3-43. Measurement(2) Data storageIf the DATA key is pressed during measurement, mark starts flashing. Press theF/ENT key, then curre
IM 12D03D02-01E4-14. Keyswitch Functions4. Keyswitch FunctionsThere are seven membrane keys on the keyboard of the Personal Conductivity meter.The f
IM 12D03D02-01E4-24. Keyswitch Functions4.1 Names and Functions of KeysPOWER: Power ON/OFF keyIf nothing is displayed on the LCD, hold down this key
IM 12D03D02-01E4-34. Keyswitch FunctionsF/ENT: Entry keyIn measurement mode, pressing this key switches the meter to function mode (seeSection 4.3,
IM 12D03D02-01E4-44. Keyswitch Functions4.2 Liquid Crystal Display and Display ItemsDisplays and their explanations are shown below.F040201.EPSRemai
IM 12D03D02-01E2PrefaceLiquid crystal display (LCD) display charactersThe numeric LCD display is used to mimic alphabetic characters, as shown below:9
IM 12D03D02-01E4-54. Keyswitch Functions4.3 Function ModesOutlineA variety of functions are supported by function mode. Press the F/ENT key to switc
IM 12D03D02-01E4-64. Keyswitch FunctionsDetails about how to set each item are provided below.(1) Display stored measurement value (dAt) panelUsed to
IM 12D03D02-01E4-74. Keyswitch FunctionsF040301.EPS"Delete stored data" panelStored measurement datato display other dataLatest dataDelete
IM 12D03D02-01E4-84. Keyswitch Functions(2) Temperature compensation setting (t.Co) panelThis panel is used to change the temperature compensation ty
IM 12D03D02-01E4-94. Keyswitch Functions(3) Range selection (rnG) panelChange the current measuring range. Use the keys to change between autorangi
IM 12D03D02-01E4-104. Keyswitch Functions(4) Cell constant setting (C.C) panelThis panel with the mark is used to set the cell constant manually.Us
IM 12D03D02-01E4-114. Keyswitch Functions(5) Calibration with standard solution (CAL) panelThis panel is used for calibration with standard solution.
IM 12D03D02-01E4-124. Keyswitch Functions(6) Delete all stored measuring data (dEL.A) panelThis panel is used for deleting all stored data.When you s
IM 12D03D02-01E4-134. Keyswitch Functions(8) Time setting (tIME) panelFor the converter, set the time (24-hour display), minutes in order.Use the k
IM 12D03D02-01E4-144. Keyswitch Functions(9) Alarm time setting (ALM) panelAlarm Enable (ON) / Disable (OFF) and alarm occurrence time (hours and min
IM 12D03D02-01E3PrefaceWarranty and ServiceYokogawa products and parts are guaranteed to be free from defects in workmanship andmaterials under normal
IM 12D03D02-01E4-154. Keyswitch Functions(10) Set Auto Power Off interval (A.oFF) panelSet the time interval for the power to turn off automatically
IM 12D03D02-01E4-164. Keyswitch Functions(12) Set measurement unit (SC.U) panelToggle the measurement value units between [S/cm] and [S/m].Use the
IM 12D03D02-01E4-174. Keyswitch Functions(14) Version number dispaly (VEr) panelDisplays program firmware version number. Can’t be set by the user.F
IM 12D03D02-01E4-184. Keyswitch Functions(15) Defragment storaged data (dFLG) panelUp to 300 data can be stored. Unnecessary data can be individually
IM 12D03D02-01E5-15. Handling of the SC72 Personal Conductivity Meter5. Handling of the SC72 PersonalConductivity Meter5.1 Tips to Maintain Meter P
IM 12D03D02-01E5-25. Handling of the SC72 Personal Conductivity Meter5.2 Washing the ElectrodeDirt or stains on the electrode may have an adverse ef
IM 12D03D02-01E5-35. Handling of the SC72 Personal Conductivity Meter5.3 Cleaning and Drying ConnectorIf there is an electrical path between the con
IM 12D03D02-01E5-45. Handling of the SC72 Personal Conductivity Meter5.4 Calibration with Standard SolutionNote: Calibration with standard solution
IM 12D03D02-01E5-55. Handling of the SC72 Personal Conductivity Meter* Before calibrating the meter with standard solution, check that the electrode
IM 12D03D02-01E5-65. Handling of the SC72 Personal Conductivity MeterProcedures for calibration with standard solutionF050401.EPSWhole measurement va
IM 12D03D02-01E4ContentsCONTENTSPreface ...
IM 12D03D02-01E5-75. Handling of the SC72 Personal Conductivity Meter5.5 Storage and Maintenance• Method of storageCare is required when storing the
IM 12D03D02-01E5-85. Handling of the SC72 Personal Conductivity Meter(1) Replacing O-ringsO-ringInstall the O-ring on the cylindrical flat part as sh
IM 12D03D02-01E6-16. Troubleshooting6. Troubleshooting6.1 Causes of Abnormal Conductivity DisplayThe measured temperature is stable, but the conduc
IM 12D03D02-01E6-26. Troubleshooting6.2 Error Messages and Corrective ActionTable 6.1 Error MessageT0601.EPSError messageErr1Err2Err3Err6orNameTempe
IM 12D03D02-01E6-36. Troubleshooting(3) Err3 Calibration errorCause:When the calibration with standard solution is made, each time cell constants are
IM 12D03D02-01E6-46. Troubleshooting6.3 Causes of Abnormal Measured ValueIf error messages do not occur, but measured values seem incorrect, check t
IM 12D03D02-01E7-17. Measuring Principles of this Instrument7. Measuring Principles of thisInstrument7.1 What Is Conductivity?Conductivity of a sol
IM 12D03D02-01E7-27. Measuring Principles of this Instrument7.2 Principles of OperationF0702.EPSAC power supply AmmeterFigure 7.2 Operational Schema
IM 12D03D02-01E7-37. Measuring Principles of this Instrument7.3 Temperature Compensation and Finding TemperatureCompensation Coefficient• Temperatur
IM 12D03D02-01E7-47. Measuring Principles of this Instrumenta = Temp. coef. 3 100 (%/8C)K 2 K K ( t 2 25 ) 2 K ( t 2 25 ) 112112222121where t
IM 12D03D02-01E1-11. Outline1. OutlineThe Model SC72 Personal Conductivity Meter is an accurate, portable, easy-to-useconductivity meter. It includ
IM 12D03D02-01E1AppendixAppendixKey-Operation Flow Chart (for reference)Typical screens are shown. Refer to the corresponding section in the body of
IM 12D03D02-01E2AppendixF/ENTT02.EPSF/ENTF/ENTDATADATADATADATAF/ENTd Function ModeorDisplay stored measurement valueF/ENTF/ENTF/ENTF/ENTTemperature co
IM 12D03D02-01E3AppendixF/ENTF/ENTT03.EPSd Function ModeCell constant settingF/ENTF/ENTF/ENTCalibration with standard solutionF/ENTF/ENTDelete all sto
IM 12D03D02-01E4AppendixF/ENTF/ENTF/ENTd Function Moded Function ModeAlarm time settingF/ENTF/ENTSet Auto Power OFFintervalF/ENTF/ENTSet buzzer ON/OFF
Revision RecordManual Title : Model SC72 Personal Conductivity MeterManual Number : IM 12D03D02-01EEdition Date Remark (s)1st Aug. 2004 Newly publish
IM 12D03D02-01E1-21. Outline1.2 Personal Conductivity Meter SpecificationsApplicable measurement range:• Sensors for high purity water measurement (
IM 12D03D02-01E1-31. OutlineEMC Compliance: EMI (Emission): EN 61326-1 Class BTest ItemElectromagnetic radiation disturbanceFrequency Range30 to 1
IM 12D03D02-01E1-41. Outline1.4 Contents of Model SC72 Personal Conductivity MeterPackage11 11 11 11Instrument Card78910125643Quick ManualUser'
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