Horiba ES-51 User Manual
Contents
1. solutions The following table shows the conductivity converted to 25 C and the temperature coefficient at that time for various kinds of solution Sub Temp Conc Cond poe Sub Temp Conc Cond pa stance C wt S m C stance C mt S m C NaOH 15 5 19 69 2 01 NaCl 18 5 6 72 2 17 10 31 24 2 17 10 12 11 2 14 15 34 63 2 49 15 16 42 12 12 20 32 70 2 99 20 19 57 2 16 30 20 22 4 50 25 21 35 12 27 40 11 64 16 48 Na SO 18 5 4 09 2 36 KOH 15 25 2 54 03 2 09 10 6 87 2 49 29 4 54 34 2 21 15 8 86 2 56 33 6 52 21 2 36 NasCO3 18 5 4 56 2 52 42 42 12 2 83 10 7 05 2 71 NH3 15 0 1 0 0251 2 46 15 8 36 2 94 1 6 0 0867 2 38 KCI 18 5 6 90 2 01 4 01 0 1095 2 50 10 13 59 1 88 8 03 0 1038 2 62 15 20 20 1 79 16 15 0 0632 3 01 20 26 77 1 68 HF 18 1 5 1 98 7 20 21 28 10 1 66 4 8 5 93 6 66 KBr 15 5 4 65 2 06 24 5 28 32 5 83 10 9 28 1 94 HCl 18 5 39 48 1 58 20 19 07 1 77 10 63 02 1 56 KCN 15 3 25 5 07 2 07 20 76 15 1 54 6 5 10 26 1 93 30 66 20 1 54 Z ES 51 97 7 Reference 7 1 Conductivity measurement Sub Temp Conc Cond pa Sub Temp Conc Cond a stance C wt S m 6 C stance C wti S m 6 C H5S0 18 5 20 85 1 21 NH Cl 18 5 9 18 1 98 10 39 15 1 28 10 17 76 1 86 20 65 27 1 45 15 25 86 1 71 402. cccsssssseeeeeeeeeeeeeeeeeeeeneees 30 3 3 Setting MOGES sivsvenisscsdiesdacdravivanecessteanasdenseaddenidatacreavavveessdecatienes 32 3 3 1 Entering the Setting mode eeeceeccceeeeeeeceeeeeeeeeeneeeeeeeeeeeees 32 3 3 2 Display and description cz cucits cnc cece cats Mamet eine ead vauetiedandiatecned 33 3 3 3 Temperature compensation Setting cceceeeeeeeeeeeteteeeeeeeeeees 34 3 3 4 Auto data storage setting sissicsittccerinscthtneapleiptecenesierielatsioteatieaie 35 3 3 5 Sample ID setting tai easicacs ree te Ae Ac Ate aioe 37 3 3 6 Conductivity unit setting c 4i seins Ae eee ane ase eee A 38 3 3 7 Temperature coefficient setting cc ceceeeeeeeeeeeeeeeeeeeeetteeeeeeeeeees 38 3 3 8 Maintenance mode isi Annet sorkede oi esi eset 39 4 RS 232C communications 49 4 1 Cautions before USC cccccsscsseeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeeeeeeenees 49 4 2 SC OTMIAR CIES Bice oe suis ccnsiecaeeedyaataeanecavectvsiuenteuiaseayeanesteniycansnmemvnnineas 51 4 3 On line Operation COMMAMNAS cceseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 54 ES 51 V CONTENTS Ts a sz 4 4 Data request commands and reSpONnses ss eccceeseseeeeeteeeeees 60 4 5 Communication example using the HyperTerminal 69 5 sPMMNGD is nett oncaeid beeen ad bee as pees 71 5 1 Connecting the printer oo iicsccciccsaeciienscescdeedenensasdsonenewascnieans 71 5 2 PLINT R SOT Ge vcri tei
3. EEPn Endo 2 Use the MODE key to proceed to Printer con nection and printing test item No 08 Item No 07 en CEA p The setting values to be initialized are shown on page 101 HINT Entering the Maintenance mode Measure Item No Maintenance mode ment mode selection 46 HORIBA 3 Functions 3 3 Setting modes Printer connection and printing test item No 08 A printing test is conducted if a printer is connected 1 Press the ENTER key to start the printing test When conditions are normal End is displayed When conditions are not normal Err is displayed When the printer is connected and power is ON t _ End weten Peam Prrng or power is OFF Item No 08 2 Press the MODE key to return to the first item in the maintenance modes LCD check Test print format egri Oat 0125 456 feo lt gt 7BARCOEFG HI JKLMNOPGRS TLE YZ _ abcdefohiJik l moo rar stuvwnyet i HINT Entering the Maintenance mode Measure Item No Maintenance mode ment mode ane selection ES 51 47 3 Functions 3 3 Setting modes 48 HORIBA 4 4 RS 232C communications 4 1 Cautions before use RS 232C communications This chapter describes the use of RS 232C communications and its communication commands 4 1 Cautions before use ES 51 Use caution regarding the following points when usin
4. E ee If any calibration error occurs take it as a indication that the electrode has gone bad Replace the old electrode with a new one 23 2 Taking Measurements 2 5 Conductivity measurement Measuring conductivity 1 Immerse the electrode in the sample 2 Conductivity is greatly affected by temperature To measure with increased accuracy use a temperature bath to keep the solutions at a constant temperature 2 Press the MEAS key with the initial screeen displayed The measured value will be displayed and HOLD will blink until the reading stabilizes When the measured value stabilizes HOLD will stop blinking and the measured value will remain displayed and measurement will be completed COND ea Refer to the Criteria for judging stability page 17 for the criteria for judging the stability of a readout ig io meter is in the Instantaneous Value Measurement mode or the measurement value is on HOLD in the Auto Hold Measurement mode you can store the measurement data by pressing the A key 3 1 Data memory function page 27 24 HORIBA 2 Taking Measurements 2 5 Conductivity measurement Salinity measurement Salinity can be measured using the conductivity electrode Enter the Salinity Measurement mode by pressing the MODE key in the Conductivity Measurement mode Resistivity measurement Resistivity can be measured using the conductivity electrode Ente
5. Page No Header code Clock data R OT page 61 Measurement MD page 62 Number of stored MC page 64 data items Memory data MS page 65 Model inquiry A RS page 65 Software version AV page 68 inquiry ES 51 53 4 RS 232C communications 4 3 On line operation commands 4 3 On line operation commands This section explains the commands that control the operation of the meter ON LINE OFF LINE command format C OL x CR LF 0 or 1 0 off line 1 on line Command code on line or off line operation Header _W Switching between on line and off line When the meter is switched from off line to on line the status of the meter is the same as when a command has been received LOCK is displayed Conductivity Measurement mode designation command format C CO CRI LF ommand code Conductivity Measurement mode designation Header This command is always valid when on line The meter changes the status to Conductivity Instantaneous Value display 54 HORIBA 4 RS 232C communications 4 3 On line operation commands Salinity Measurement mode designation command format C SA CRI LF ommand code Salinity Measurement mode designation Header This command is always valid when on line The meter enters the Salinity Instantaneous Value display ES 51 55 4 RS 232C communications 4 3 On line operation commands Resistivity Measurement mode designation command format C
6. 2 Taking Measurements 2 5 Conductivity measurement Electrode preparation Refer to the electrode instruction manual and make sure you have the correct electrode Entering the Conductivity Measurement mode 1 Remove the electrode protective cap from the electrode 2 Immerse the electrode in pure de ionized water 3 Select the Conductivity Measurement mode when the pH Instantaneous Value Measurement screen is displayed by pressing the MODE key The Conductivity Instantaneous Value Measurement screen will appear 20 HORIBA 2 Taking Measurements 2 5 Conductivity measurement CELL SET mode Setting cell constant ES 51 Set the cell constant the first time an electrode is connected to the main unit of the meter 1 To enter the CELL SET mode press the CELL key while in the Measurement mode 2 Change the digit number using the ENTER key 3 Press the A and W keys to set the cell constant written on the electrode label Setting range 0 700 1 300 To change the coefficient use the following procedure When the SI unit system m is set 7 10 gt xX 100 x eee When the former unit system cm is set poe gt X 10 0D Temperature coefficient The default value of the temperature coefficient is set at 2 00 C To change this setting refer to 3 3 7 Temperature coefficient setting page 38 Unit Setting The default value of unit is S m SI unit system
7. HORIBA 1 5 Operation keys 1 Overview of the Meter 1 5 Operation keys ES 51 This section describes the functions of the keys Name Description MEAS key Returns to the Measurement mode Starts measurement MODE key Selects measurement item lan SET key Selects setting item CELL key Enters the Cell Constant Setting mode R UP key Executes the data memory DATA IH function Increases numerical value 5 ENTER key Establishes the setting DATA OUT DOWN key Calls up data memory w Decreases numerical value ON OFF Turns ON OFF the power key This key takes effect only after pressed for one second to prevent accidental operation 0D The automatic power off function is a default setting for this meter The power is automatically turned OFF if no operation is performed after a period of approximately 30 minutes 1 Overview of the Meter 1 6 Connecting the electrodes 1 6 Connecting the electrodes Connect the electrodes to the conductivity meter using the following procedures Use special care to ensure that no water or dirt come in contact with the connector during connection procedures Electrode connector Conductivity electrode Temperature connector Temperature electrode Electrode connector G R electrode 1 Insert the electrode connector making sure to align the connector grooves with the pins in the connector port on the main u
8. To change this setting to the former unit system S cm refer to 3 3 6 Conductivity unit setting page 38 21 2 Taking Measurements 2 5 Conductivity measurement Calibrating IO 22 the cell constant The cell constant of the electrode changes as the elec trode is used Calibrate the cell constant once a year or SO Calibrating the cell constant will update it to match the condition of the current electrode Big 7 constant is calibrated with a standard solution of potassium chloride To prepare a standard solution of potassium chloride refer to Preparing potassium chloride standard solution page 92 1 Immerse the electrode in the standard solution of potassium chloride 2 Enter the Calibration mode by pressing the MODE key in the CELL SET mode 2 Enter the value of the standard solution used for calibration in the Calibration mode using the A and W keys RefJ __ Conductivity and temperature coefficients for various solutions page 97 0 When the temperature conversion has been set to ON when setting the temperature coefficient calibration is performed with the converted temperature HORIBA ES 51 2 Taking Measurements 2 5 Conductivity measurement 4 Start the calibration by pressing the CELL key HOLD is displayed and the calibration is completed To redo the calibration press the CAL key once more 5 Press the MEAS key to enter the Measurement mode
9. in pure de ionized water for 24 hours The temperature of the sample solution is fluctuating Measure after the sample solution temperature stabilizes ES 51 81 6 Maintenance and Troubleshooting 6 2 Troubleshooting ERR No 09 Printer error Explanation If a problem occurs with the printer turn OFF the power to the meter perform the appropriate measure below and turn the power to the meter back ON Cause How to solve problem The printer Remove the jammed paper paper is jammed There is no Load the printer with paper printer paper There is a Reconnect the printer after making problem with the sure there is nothing wrong with the printer connector parts connection The printer is Replace the printer defective ERR No 10 Data memory over Explanation The number of data items has exceeded the limit of the memory Cause How to solve problem Memory over Delete data stored in the memory after confirming their contents 82 HORIBA 6 Maintenance and Troubleshooting 6 2 Troubleshooting ERR No 11 Cell constant out of range ES 51 Explanation The cell constant is out of the range of 0 7 to 1 3 Delete data stored in the memory after confirming their con tents Cause How to solve problem COND electrode __ Replace the electrode is at the end of its useful life Improper standard Prepare new standard solution solu
10. lt gt Memory call up 102 HORIBA 7 Reference 7 5 Pin layout of special cables 7 5 Pin layout of special cables 7 5 1 RS 232C communications cable Meter main unit Printer MINI DIN8M D SUB 9 PIN 2 CTS 7 RTS 3 TXD 2 RXD 4 GND 5 GND 5 RXD 3 TXD 7 5 2 Cable for CITIZEN printer CBM 910 24RJ100 A Meter main unit Printer MINI DIN8M D SUB 25 PIN 2 CTS 20 BUSY 3 TXD 3 RXD 4 GND _ 7 GND 5 RXD 2 TXD 7 5 3 Cable for SEIKO printer DPU H245AS A03A Meter main unit Printer MINI DIN8M D SUB 25 PIN 2 CTS 8 BUSY 3 TXD 3 DATA 4 GND _ 5 GND 5 RXD 2 OPEN ES 51 103 7 Reference 7 6 Spare and optional parts 7 6 Spare and optional parts This section lists spare and optional parts for the meter These parts are available through HORIBA distributors Place an order specifying their name model and part number 7 6 1 Spare parts list COND electrode for D 54 104 Water proof type 9382 10D 9096000300 Water proof conductivity Cell constant 100 m electrode Conductivity 3551 10D 9056000800 For low conductivity electrode Cell constant 10 m 3553 10D 9056001000 For high conductivity Cell constant 1000 m Flow through 3561 10D 9056001100 For low conductivity type conductivity Cell constant 10 m electrode 3562 10D 9056001200 General purpose Cell constant 100 m 3573 10C 9056001300 For hi
11. td GGG gr tel 3 Specify a numerical value using the A and W keys Setting range 00000 to 99999 ES 51 37 3 Functions 3 3 Setting modes 3 3 6 Conductivity unit setting 1 Press the SET key in the Measurement mode and select the COND Unit Setting mode 2 Use the ENTER key to toggle between S m and S cm units 3 3 7 Temperature coefficient setting 1 Press the SET key in the Measurement mode and select the COND TC Setting mode 2 Pressing the ENTER key toggles the temperature conversion ON and OFF E oFF COND o epu e 3 Specify a numerical value for the temperature coefficient using the A and V keys Setting range 0 00 to 10 00 per C T w 38 HORIBA 3 Functions 3 3 Setting modes 3 3 8 Maintenance mode Press the SET key in the Measurement mode and select the Maintenance mode The LCD CHECK screen Item No 00 will appear i Item No LC J eA aac vi ES 51 39 3 Functions 3 3 Setting modes Maintenance setting items Use the MODE key to toggle between Maintenance mode items Item pani Page No Item Description No 00 LCD check Enables check to see if all page LCD segments are displayed 41 01 Battery Enables simple battery page voltage check voltage check 42 02 Temperature Carries out temperature page zero calibration when the 43 adjustment temperature sensor is immersed in a liquid
12. 0 1CH Measurement mode 1 digit 3 Conductivity 5 Salinity 6 Resistivity 66 HORIBA 4 RS 232C communications 4 4 Data request commands and responses x X X XXXXX XXXXX XX CR LF ES 51 Error code Error No display 2 digit One error No which takes precedence over others is output When the measurement calibration type is 0 The latest data is output regardless of occurrence of measurement errors 1 SP is output when any calibration error is produced otential 5 digit Temperature 5 digit including decimal point 10 0 to 100 0 Right aligned with blank digits filled with spaces Temperature setting 1 digit 0 ATC 1 MTC Unit 1 digit Conductivity 0 S cm 1 S m Supplementary unit 1 digit 0 none 1 u 2 m 3 k 4 M 67 4 RS 232C communications 4 4 Data request commands and responses Request command for model and its response Request command format A RS CR LF Command code Header Meter response format ARS x yyyyyyy CR LF Lot No 7 digit Model 8 ES 51 Header Request command for software version and its response Request command format A AV CR LF TT Command code Header Meter response format AAV XXxXxXxXxXKKXXKX CR LF Software version 12 digit Header 68 HORIBA 4 RS 232C communications 4 5 Communication example using the HyperTerminal 4 5 Communication example using the HyperTerminal ES 51 For reference communi
13. Command list 4 2 Command list ES 51 Use lt CR gt lt LF gt as the terminator for serial communication commands All the commands except the ON LINE OFF LINE command are valid only in the ON LINE mode An error message is returned in the OFF LINE mode The meter returns a response to any operation made in the following format OK lt CR gt lt LF gt If the meter does not accept the operation it returns an error message in the following format ER n lt CR gt lt LF gt n 0 Communication error 1 When a non existent command is input 2 When a timing command is input to which the meter cannot respond 3 When the numerical value in the command is out of the setting range 51 4 RS 232C communications 4 2 Command list On line operations commands Command Command item Command Page No Header code On line off line C OL page 54 Halt potential hunting BR page 57 Conductivity Measurement mode CO page 54 designation Salinity measurement designation SA page 55 Resistivity measurement designation OH page 56 Start measurement MS page 56 Start conductivity cell constant CD page 58 calibration Data clear DC page 59 Data In designation IN page 59 Power Off OF page 59 52 HORIBA 4 RS 232C communications 4 2 Command list Request data commands Command Request for Command
14. R J L Equation 2 As is clear from equation 2 when a conductivity cell having a cell constant J of 1 m is used in other words when a conductivity cell having two pole plates that each have an area a of 1 m and are positioned parallel to each other such that the distance between the two plates is 1 m is used the inverse of the resistance R of the solution expressed in Q between both pole plates is the conductivity Conductivity is defined in this way but it changes according to the temperature of the solution The conductivity of a solution is generally expressed as the value when the solution is 25 C HORIBA New units SI units New measurement units called SI units have come into use in recent years Accordingly the meter also uses SI units The following conversion table is provided for people who are used to using the conventional kind of conductivity meter Note that along with the change in unit systems the measurement values and cell counts have also changed ES 51 7 Reference 7 1 Conductivity measurement romer SI units Cell constant 1 cm 100 m 01cm 10m 10 cm 1000 m Measurement 10 uS cm 1 mS m value 1 mS cm 100 mS m 100 mS cm 10 S m 95 7 Reference 7 1 Conductivity measurement Temperature compensation 96 The conductivity of a solution generally varies greatly depending on the temperature of the solu
15. and No 7 to OFF and pre pare the printer paper and ink ribbon Keep the LF key held down The printer prints only when the LF key is being pressed Setting for a thermal paper printer DPU H245AS Prepare printer paper and turn ON the power switch with the FEED and CHARGE switches held down Set the baud rate of the printer to the above value referring to the instruction manual for the printer Start the function setting mode of the printer and change it to the above settings 72 HORIBA 5 Printer 5 3 Printer output timing 5 3 Printer output timing ES 51 The printer prints at the following times U When pressing the ENTER key after Auto Hold or while the instantaneous value is being displayed in the Measurement mode When the manual data memory storage is performed in the Measurement mode When pressing the ENTER key while in the Data Memory Call mode When calibration or check is performed in the Calibration mode When the ENTER key is pressed in the calibration history display When test printing is selected while in the Maintenance mode 73 5 Printer 5 4 Printing format 5 4 Printing format The following are sample printouts 5 4 1 When the ENTER key is pressed in the Measurement mode COND Measurement mode When the data is the data con D tid bite firmed with Auto Hold HOLD is CATT 25 8 C shown Nothing is displayed for the _ Up ba00 inst
16. moderate injury It may also be used to alert unsafe practices E Safety Precautions For the safety use be sure to read the following precautions AN WARNING eDo not use any unspecified AC adapters Heat or fire may occur to cause fire or accidents eDo not disassemble or modify the meter Heat or fire may occur to cause fire or accidents AN CAUTION eDo not use the serial communication or AC adapter in the place that may possibly contact with moisture It may cause fire electric shock or breakage ePart of the electrode is made of glass handle with care not to break it Indication Precautions for use WARNING This indicates an potentially hazardous situation which if not avoided will result in death or serious injury AN CAUTION This indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert unsafe practices U This mark indicates the operation requires a special care and attention J This mark indicates to which the reader should go for reference HINT This mark indicates reference information Precautions for use E Cautionary Items Precautions eDo not give physical shock to the meter like dropping or hitting eDo not immerse the meter into alcohol organic solvent strong acid strong alkaline and other similar solutions The meter contains ABS resin acrylic resin and various rubber product
17. or damage attributable to actions or conditions specifically mentioned to be avoided in the operation manuals Any trouble or damage attributable to use of the meter in ways or for purposes other than those described in the operation manuals If any repairs renovations disassembly etc are performed on this meter by any party other than HORIBA or a party authorized by HORIBA Any alteration to the external appearance of this meter attributable to scratches dirt etc occurring through normal use O Wear and tear to parts the exchange of accessories or the use of any parts not specified by HORIBA HORIBA also shall not be liable for any damages resulting from any malfunctions of this product any erasure of data or any other uses of this product Unauthorized reprinting or copying of this operation manual No unauthorized reprinting or copying of all or part of this operation manual is allowed The utmost care has been used in the preparation of this operation manual If however you have any questions or notice any errors please contact the HORIBA customer service center printed on the back cover of this operation manual Copyright HORIBA Ltd 2003 Precautions for use m CE Marking This product is in conformity with the following directives and standards Directives The EMC Directives 89 336 EEC The Electrical Product Safety Directive 73 23 EEC Standards EN61326 1997 A1 1998 EMISSION Class B IMMUNITY Categor
18. with the setting for the temperature display calibration mode see page 43 Initialize the settings see page 46 HORIBA the 6 Maintenance and Troubleshooting 6 2 Troubleshooting When the printer will not print even though it is connected Check the following points O Is the printer turned ON Has a printer error occurred Is there printing paper Has the paper jammed OWhen running a test print according to the manual does it print out correctly ES 51 89 6 Maintenance and Troubleshooting 6 2 Troubleshooting 90 HORIBA 7 Reference F Reference This chapter provides a simple compilation of information for those who would like to know about the functions of the main unit of the meter and other measurement principles in greater detail It also serves as a reference for spare and optional parts ES 51 91 7 Reference 7 1 Conductivity measurement 7 1 Conductivity measurement Electrode sensitivity check The cell constant of a conductivity electrode may vary depending on the sample solution Check the cell constant by measuring conductivity using the following solutions at least once every three months Electrode Kel KCI Solution Conductivity Cell constant standard model Weight temp value solution SI units 9382 10D 0 01 0 7440 g 0 C 77 4 mS m 100 m mol L 0 774 mS cm former unit 18 C 122 0 mS m designation 1 220 mS cm 1cm 25 C 11
19. 2C communications and the printer cannot be used simultaneously 4 HORIBA 1 Overview of the Meter 1 2 Functions Functions in Maintenance mode ES 51 Function Explanation Pade No LCD check Enables check for whether or not all LCD page segments are displayed 41 Battery voltage Enables simple check of battery voltage page check 42 Temperature Carries out temperature calibration page zero adjustment 43 Auto Power OFF Sets the function that automatically turns the page power OFF if no keys are touched 30 44 minutes Remaining data Displays the remaining memory page memory 45 Data memory Deletes data in memory page clear 45 Initializing Initializes all settings to the default values page settings 46 Printing test Conducts a printing test page 47 5 1 Overview of the Meter 1 3 Part names 1 3 Part names The ES 51 conductivity meter has the following parts Display Ge A Se SF ki AC connector W Dry cell battery holder Temperature connector Serial communication port Electrode connector 6 HORIBA 1 Overview of the Meter 1 4 Explanation of display 1 4 Explanation of display Input channel Error No Measurement Data No p 1 PL o2 Sat ratio Re item Year Temperature Status display month and day eset z HOLD Ae Cc Auto Second Measurement Meter mode data hour ano Measu
20. 40 8 mS m 1 408 mS cm Prepare the potassium chloride standard solution KCI 0 01 mol L using the procedure below In addition if an error of 5 of more compared to the above values occurs calibrate the cell constant See page 22 Preparing potassium chloride standard solution How to prepare solution Dry the potassium chloride powder superior quality commercial potassium chloride or better for two hours at 105 C then cool it in a desiccator Measure out the above listed amount of potassium chloride into a beaker and dissolve it in de ionized water Then pour this solution into 1 liter volumetric flask and add de ionized water until the indication line 92 HORIBA 7 Reference 7 1 Conductivity measurement Measuring conductivity ES 51 Conductivity is an index that expresses the ease with which electric current flows through a material Conductors are categorized either as electron conductors such as metals and other substances which use free electrons to conduct electricity or ion conductors such as electrolytic solution or fused salt which use ions to conduct electricity This section deals with the kind of conductivity that pertains to ions especially the conductivity of electrolytic solution that uses water as the solvent As shown in Fig 1 two pole plates with an area A expressed in m are positioned parallel to each other separated by distance expr
21. 68 00 1 78 20 33 65 1 61 50 54 05 1 93 25 40 25 1 54 60 37 26 2 13 NH 4NOs 15 5 5 90 2 03 80 11 05 3 49 10 11 17 1 94 100 1 11 87 0 30 30 28 41 1 68 4 50 36 22 1 56 HNO 18 6 2 31 23 1 47 CuSO 118 2 5 10 90 2 13 12 4 54 18 1 42 5 18 90 2 16 31 78 19 1 39 10 132 00 2 18 49 6 63 41 1 57 15 42 10 2 31 62 149 64 1 57 CH CO 18 10 15 26 11 69 OH H3PO 15 H0O 5 66 11 04 15 116 19 1 74 20 11 29 1 14 20 116 05 1 79 140 120 70 11 50 30 114 01 11 86 45 20 87 1 61 40 10 81 1 96 50 120 73 1 74 60 14 56 12 06 98 HORIBA 7 2 Specifications 7 Reference 7 2 Specifications Measurement target ES 51 Target Item Description Measurement Thermistor principle Measurement 0 0 100 0 C Temp range Resolution 0 1 C Repeatability 0 1 C 1digit Measurement 2 AC electrode principle Measurement Cell constant 100 m range 0 000 S m 19 99 S m Corian Cell constant 10 m eee 0 0 uS m 1 999 S m Cell constant 1000 m 0 00 mS m 1999 9 S m Resolution 0 05 of full scale Repeatability 0 5 1 digit of full scale Measurement 2 AC electrode ae principle Salinity Measurement 0 4 concentration range Resolution 0 01 99 7 Reference 7 2 Specifications Target Item Description Measurement 2 AC elec
22. HORIBA pe sees e INSTRUCTION MANUAL o Fy ipse m DATA OUT Preface Thank you for purchasing the ES 51 conductivity meter This meter is designed with a compact body that can be held in one hand and features a water resistant construction Note 1 It has a large sized LCD display which enables to use the varied functions by simple operations and especially will be convenient to use on location Carefully read this manual before using the meter Note 1 The water resistant construction of this meter conforms to IP 67 of IEC 529 entitled Water resistant testing and protection against penetration by solid matter for electrical machinery and equipment To maintain the water resistant construction of this meter follow the instructions in this manual when using the meter IP 67 standards Dust does not get into internal parts Water does not flow into internal parts when the meter is submerged 1 m below the surface of the water for 30 minutes at a temperature differential between the water and the device of 5 C or less HORIBA s Warranty and Responsibility Your meter is covered by HORIBA s warranty for a period of one 1 year under normal use Although unlikely if any trouble attributable to HORIBA should occur during this period necessary exchange or repairs shall be conducted by HORIBA free of charge The warranty does not cover the following Any trouble
23. OH CR LF Command code Resistivity Measurement mode designation Header This command is always valid when on line The meter enters the Resistivity Instantaneous Value display Start measurement command format C MS x CR LF Channel number 1 Command code Start measurement Header When the meter status is Instantaneous Measurement Auto Hold Measurement will start If the command is issued during a measurement hold or during calibration the meter will return to the initial screeen status 56 HORIBA 4 RS 232C communications 4 3 On line operation commands Halt potential hunting command format C BR x CR LF Channel number 1 Command code Measurement halt Header This command is valid when on line only during measurement on AUTO HOLD O Issuing this command halts measurement on AUTO HOLD ES 51 57 4 RS 232C communications 4 3 On line operation commands Start conductivity cell constant calibration command for mat C CD yyyyy z CR LF Prefix for the unit of the calibration value to be set 0 1 m 2 u The set unit determines which unit is used either S m or S cm Calibration value to set Command code Conductivity calibration start Header QThis command is valid when on line when conductivity measurement or calibration are on HOLD This command starts the calibration of the conductivity cell constant Setting ranges for calibration values O When uni
24. S key cH COND raha ths Criteria for judging stability Conductivity measurement Temperature measurement ES 51 Q Within 3 digit variance after 10 seconds Within 2 C variance after 10 seconds 17 2 Taking Measurements 2 4 Selecting the measurement modes 2 4 Selecting the measurement modes Pressing the MODE key changes the measurement mode The last measurement mode item is the clock display Pressing the MODE key once more returns the display to the first measurement mode Power ON Clock display 18 HORIBA 2 Taking Measurements 2 5 Conductivity measurement 2 5 Conductivity measurement The following shows the operational flow for conductivity measurement Measuring conductivity basic operational flow 1 Electrode preparation Power g E3 2 Conductivity Measurement mode instantaneous value Setting the clock page 31 3 3 6 Conductivity unit setting page 38 3 3 7 Temperature coefficient setting page 38 About once a year 4 Calibration mode Auto Hold calibration le 5 Conductivity Measurement instantaneous value 3 3 4 Auto data storage setting page 35 3 3 5 Sample ID setting page 37 Clear Hold 1 6 Auto Hold Measurement 3 Cell constant setting Be x O ge fed fa O S a O s qm F o Q fad Q wn O Cc Ss O m 3 1 Data memory function page 27 ES 51 19
25. antaneous value measurement ID 5 digits Unit S m mS m uS m S cm mS cm uS cm Temperature compensation setting Manual mode MTC Auto mode ATC Salinity Measurement mode 2008 1 1 5 00 ID 5 digits Stee Temperature compensation setting _ 1D 00000 ees Manual mode MTC one Auto mode ATC Resistivity Measurement mode 9003 1 1 5 00 ID 5 digits oe PORTE 25 on Temperature compensation setting Manual mode MTC D 00000 Auto mode ATC 74 HORIBA 5 Printer 5 4 Printing format 5 4 2 When the manual data memory storage is performed in the Measurement mode The printer prints the data memory No in the first line and the data in accordance with the format same with the one in 5 4 1 When the ENTER key is pressed in the Measurement mode P 74 Example in the COND Measurement mode ata No 05 Ae Data memory number D B us cn AIC 25 0 C 1D 0000A Example in the Salinity Measurement mode Cata No 229 Data memory number 2003 1 1 5 00 SALT 1 21 ATC 25 0 C 1D 00000 Example in the Resistivity Measurement mode Qata No 230 Data memory number 2003 1 1 5 00 Res 2 00chm m ATC 25 0 C D 00000 5 4 3 When the ENTER key is pressed in the Data Memory Call screen The format is the same as that described in 5 4 2 When the manual data memory storage is performed in the Measuremen
26. blem The conductiv Take the battery from the conductiv ity meter does lity meter and disconnect the AC not start operat adapter Then press the ON OFF ing correctly key for about 10 seconds even after the power is turned ON The internal IC Seek repairs at your nearest retail is defective outlet or HORIBA service station ERR No 02 Battery voltage low Explanation The battery has insufficient voltage Cause How to solve problem The battery Replace the dry cell battery voltage is low Battery voltage 2 2V or less _ WD The measured value cannot be guaranteed when ERR No 02 is displayed 80 HORIBA 6 Maintenance and Troubleshooting 6 2 Troubleshooting ERR No 03 Electrode stability error Explanation The electric potential did not stabilize within three minutes Cause How to solve problem This is caused by the sample solution when the sample solution is pure water or another solution with low conductivity or the pH concentration or temperature change Press the MEAS key again while HOLD is either brinking or steadily lit in the display to measure the sample using instantaneous value measurement The electrode is dirty Wash the electrode The electrode is cracked Replace the electrode The responsive glass membrane of the electrode has been dry fora long time Soak the membrane on the electrode
27. bration error is produced Potential 5 digit Temperature 5 digit including decimal point 10 0 to 100 0 Right aligned with blank digits filled with spaces Temperature setting 1 digit 0 ATC 1 MTC Unit 1 digit Conductivity 0 S cm 1 S m Supplementary unit 1 digit 0 none 1 u 2 m 3 k 4 M ES 51 63 4 RS 232C communications 4 4 Data request commands and responses Request command for number of stored data items and its response Request command format R MC CR LF Command data Header Meter response format RMC xxx CR LF Number of data items Header 64 HORIBA 4 RS 232C communications 4 4 Data request commands and responses Request command for memory data and its response Request command format R MS yyy CR LF ah ede Memory No Command code Header ES 51 65 4 RS 232C communications 4 4 Data request commands and responses Meter response format RMS xxx y 22zz2 Sample ID 0 Manual data IN 1 Auto data IN Memory No Header X X X X X KXXX XX XK KX KX XX XXXXXX a Measurement value 6 digit Seconds 2 digit 0 59 Minutes 2 digit 0 59 Hours 2 digit 0 23 Day 2 digit 01 31 Month 2 digit 01 12 Year 4 digit A D lead zero is suppressed SP Measurement status 2 digit 0 Instantaneous value 1 Hold 2 Potential hunt in progress Measurement calibration type 1 digit 0 Measurement Channel number 1 digit
28. cation using the HyperTerminal that comes with Windows is described here 1 4 Open the HyperTerminal Start gt Programs gt Accessories gt Communications gt HyperTerminal The HyperTerminal program Hypertrm exe is activated Make the setting for name connection and port Select the COM port of the PC currently being used for the port setting Set the COM port of the PC and set the transmission parameters as follows Baud rate 2400 bps Character length 8 bits Parity none Stop bit 1 bit Make the settings in the properties dialog box File gt Properties gt Settings Horiba Properties Connect To Settings Funcion aroe and cal kaug act Tamra kes D Windows kegs Eskia bess tere H Del O rH Space Ce E rust Bako dateci s Taine baiana 1D ANZI Seckscrof butis fex 500 LI Fisy round when connecting o disconnecting Input Tiada S50 Saip 69 4 RS 232C communications 4 5 Communication example using the HyperTerminal File gt Properties gt Settings gt ASCII Setup ASCII Setup ASCE Sering Send line ends wih line isad E Echo tpped characters locally Lre ddm 1 Millissconds Character dels 71 mikec 4500 Receseng F Append line feeds to incoming line ends Foca incoming dais bo 7b ASCII T rap lines ha evceed berminal width C _ wD You can check the contents transmitted via HyperTerminal by enabli
29. de Header Meter response format ROT XXXX XX XX XX XX xx CR LF Seconds 2 digit 0 59 Minutes 2 digit 0 59 Hours 2 digit 0 23 Day 2 digit 01 31 Month 2 digit 01 12 Year 4 digit A D lead zero is suppressed Header ES 51 61 4 RS 232C communications 4 4 Data request commands and responses Measurement request command and response Request command format R MD CR LF Command code Header Meter response format RMD XXXXX X X X X X XX XX XX XKXXXXN gt Measurement value 6 digits Lead zero is suppressed Seconds 2 digit 00 59 Minutes 2 digit 00 59 Hours 2 digit 00 23 Day 2 digit 01 31 Month 2 digit 01 12 ear 4 digit A D lead zero is suppressed lon slope 1 digit SP Measurement status 1 digit 0 Instantaneous value 1 Hold 2 Potential hunt in progress Measurement or calibration 1 digit 0 Measurement 1 Calibration Channel number 1 digit 1 1CH Measurement mode 1 digit 3 Conductivity 5 Salinity 6 Resistivity Sample ID 5 digit Header 62 HORIBA 4 RS 232C communications 4 4 Data request commands and responses gt X X X XKXXK XXXXX XX CR LF Error code Error No display 2 digit One error No which takes precedence over others is output When the measurement calibration type is 0 The latest data is output regardless of occurrence of measurement errors 1 SP is output when any cali
30. e unit for conductivity page Setting measurement 38 Unit COND TC Sets the temperature page By Setting coefficient for the sample to 38 be measured in Conductivity Measurement mode l Data Memory Selects the Auto Manual page A Setting mode for data memory 35 Data function ID Sets a number for a page i measured sample and 37 stores its data Maintenance Sets various maintenance page related settings 39 33 3 Functions 3 3 Setting modes 3 3 3 Temperature compensation setting 34 1 Press the SET key in the Measurement mode to enter the Temperature Compensation Setting mode 2 Pressing the ENTER key toggles between MTC and ATC settings ATC ATC Automatic temperature compensation when using a temperature sensor of the electrode ATC is displayed When a temperature sensor is connected the current temperature is automatically displayed When no temperature sensor is connected the display shows 25 C MTC Manual temperature compensation when an electrode temperature sensor is not being used and the temperature of the solution is known before hand MTC is displayed Set the temperature using the A and keys Setting range 0 0 to 100 0 C HORIBA 3 Functions 3 3 Setting modes 3 3 4 Auto data storage setting You can set the meter to automatically store data at certain intervals 1 Cancel the Auto Power OFF function 2 Press the SET key in the Measureme
31. en for the clock 7 zanni yt 2003 40 FG Ges 1 J0 ss Switch the display to year month day hour minute and second using the ENTER key You can set a numerical value using the A and W keys W Set the seconds to 00 sec Pressing the ENTER key sets it to 00 3 After setting the clock press the ENTER key to update the setting Pressing the CELL key at this time returns you to the Clock Display screen without changing the current setting Press the MODE key to return to the Measurement mode 31 3 Functions 3 3 Setting modes 3 3 Setting modes Selecting the Setting mode expands the uses of the meter 3 3 1 Entering the Setting mode 1 Press the SET key in the Measurement mode The Setting Mode Selection cursor appears at the left bottom of the screen to indicate that the Setting mode is active Setting Mode Selection cursor Setting mode items 2 Pressing the SET key moves the Setting Mode Selection cursor one by one to allow you to select the Setting mode of your choice Setting Mode Selection i gt eA i de ll 3 Press the MEAS key to return to the Measurement mode from the Setting mode 32 HORIBA 3 3 2 Display and description ES 51 3 Functions 3 3 Setting modes Display Name Description ee a Temperature Selects the Auto Manual page Compensation imode for temperature 34 Setting compensation COND Unit Sets th
32. essed in m Then solution is poured into the cell until it is full and alternating current is run between the plates Solution am x2 Fig 1 Conductivity cell example Polar plates Each positive and negative ION in the solution will migrate toward the oppositely charged pole The result is that current flows through the solution by means of ION conductivity When this occurs resistance R expressed 93 7 Reference 7 1 Conductivity measurement 94 in Q is in inverse proportion to the area A expressed in m of the pole plates as is the case with metal and other conductors and is proportional to the distance expressed in m between the two pole plates These relationships are expressed by equation 1 below R rxl a rJ Equation 1 R Resistance Q r Specific resistance Q m a Pole plate area m I Distance between pole plates m J Cell constant m Specific resistance expressed in Q m is an index that indicates the difficulty with which current flows and is a constant determined according to the solution The inverse of r expressed in Q m which is L and is equal to 1 r is called the specific conductivity and is widely used as an index to express the ease with which current flows Specific conductivity L is generally referred to as simply conductivity and is expressed in units of S m Inserting conductivity L expressed in S m into equation 1 results in equation 2 below
33. g RS 232C communications O Use the following designated cable for connecting to the computer Part name PC cable for 50 Series Part number 9096004800 Make sure that the data transfer formats for the meter and computer match The following data transfer format is used by the meter Baud rate 2400 bps Character length 8 bits Parity None Stop bits 1 _ D If the data transfer formats differ communications errors may occur or the on line mode may not start up and RS 232C communications cannot proceed normally If the transfer format is changed turn the power to both the meter and the computer OFF and then ON again When creating a program for RS 232C put the meter in the ON LINE mode by entering an on line command at the beginning of the program The control switches become invalid when the meter is in the ON LINE mode and the RS 232C Communications mode is enabled LOCK is displayed The ON LINE mode is cleared when the power is turned OFF 49 4 RS 232C communications 4 1 Cautions before use Lilf data is requested but not received create the program structure to have the data request repeated after a short waiting time This will provide more reliable communications jlf RS 232C communications is not used cover the RS 232C port with a rubber cap OThis system does not carry out control using DCD CTS or DSR Note this point when creating a program 50 HORIBA 4 RS 232C communications 4 2
34. gh conductivity Cell constant 1000 m 3574 10C 9056001400 For micro samples Cell constant 1000 m Actual cell constants vary within 10 of the above values HORIBA 7 Reference 7 6 Spare and optional parts 7 6 2 Options Part name Part number Remarks AC adapter 9096003100 Be sure to Stee cae posi eE aoe purchasing the For Europe 9096003400 AC adapter For Japan 9096003500 Printer For US 9096003600 Plain paper For Europe 9096003700 printer Printer cable 9096003800 Roll paper 9096003900 Ink ribbon 9096004000 Serial cable 9096004800 Data collection software 9096005000 For PC Soft case 9096005100 Strap 9096005200 For the meter Stand for electrode 9096002700 Stand arm 9096002800 ES 51 105 For any question regarding this product please contact your local agency or inquire from the Customer Registration website www horiba co jp register First edition August 2003 HORIBA_Ltd CODE 11001381000
35. ing up memory data 1 Press the key in the Measurement mode to load measurement data Displayed Manual data memory Measurement item Blinking auto data memory measurement Sample temperature Measurement mode EET Auto HOLD measurement ETJ Not displayed Instantaneous value Select and load the desired memory data item using the A and Y keys The displayed number returns to 0 after 300 the maximum number 28 HORIBA 3 Functions 3 1 Data memory function 2 Press the MODE key to display the data and time COND enog Ur Ene MEAG Select the desired data item using the A and Y keys 3 Press the MODE key to display the ID Select the desired data item using the A and Y keys _gE If an error occurs while a data number is being displayed the error number will NOT be displayed When using a printer sold separately press the ENTER key while in the DATA OUT mode to print the data ES 51 29 3 Functions 3 2 Displaying and setting the clock 3 2 Displaying and setting the clock The clock needs to be when the meter is used for the first time or after replacing the batteries Displaying the clock Press the MODE key in the Measurement mode to dis play the clock 2003 3 E i it Dog 30 HORIBA 3 Functions 3 2 Displaying and setting the clock Setting the clock ES 51 1 Press the CELL key when the Clock Display screen is displayed to show the Setting scre
36. ized water to wash away any sample solution that may have adhered to the electrode 3 Wash the inside of the electrode protective cap with pure ion exchange water then after shaking out the water fill the cap with enough pure de ionized water to soak the sponge 4 Place the electrode protective cap on the electrode 78 HORIBA 6 2 Troubleshooting 6 Maintenance and Troubleshooting 6 2 Troubleshooting The meter is equipped with a simply error message function to notify the operator that an operation error or problem with the equipment has occurred Errors or other problems that occur while in the Measurement mode are announced by an error No appearing in the lower left hand corner of the display 6 2 1 Error message chart ERR No Message Explanation 01 Memory error Data cannot be read from or written to the internal memory 02 Battery voltage The battery voltage is low low 03 Electrode The electric potential did not stabilize stability error within three minutes 09 Printer error There is a problem with the printer 10 Data memory The number of data items has over exceeded the limit of the memory 11 Cell constant out Cell constant is out of automatic of range calculation range ES 51 79 6 Maintenance and Troubleshooting 6 2 Troubleshooting ERR No 01 Memory error Explanation Data cannot be read from or written to the internal memory Cause How to solve pro
37. lt in clock allows you to record the date of calibration and data memory storage When using the meter for the first time be sure to set this clock 3 2 Displaying and setting the clock page 30 ES 51 15 2 Taking Measurements 2 3 Measurement modes 2 3 Measurement modes 16 The ES 51 conductivity meter has an Instantaneous Value Measurement mode and an Auto Hold Measurement mode for all components of the solution being measured Instantaneous Value Measurement mode The ES 51 conductivity meter performs instantaneous value measurement as the default measurement mode when the power is first turned ON and when the auto hold measurement is cancelled or cleared For this reason the screen displayed when the meter is in the Instantaneous Value Measurement mode is called the initial screen in this manual fi ae e Yue a EE mS mem Displayed HORIBA 2 Taking Measurements 2 3 Measurement modes Auto Hold Measurement mode Auto Hold Measurement mode maintains the display of the value measured when the meter automatically judges that the measured value has stabilized Press the MEAS key with the initial screeen displayed to make HOLD blink on the display When the measured value becomes stable HOLD will stop blinking and remain displayed and the measured value will remain displayed To clear the hold status or stabilized value when HOLD is ene press the MEA
38. n before the disposal As for the disposal of the meter treat it as an industrial waste CONTENTS i i re 1 Overview of the Meter 20005 1 1 1 Package contents iiiceiciscccssiseteniscesnenataucuivantndecsedivararauavsedereetuananauee 1 M2 PUNCUOIG E E E A A 3 1 3 Part NAMOCS soiien inina aeie daoa aneneen Tentamen han renen itani 6 1 4 Explanation of GISPlay ccciiiiesiscisinceetenedtiwidivnndeasaandanduabundadecanaeaentawes 7 1 5 Operation KCYS wiissicersecveniecsiecsirecinisarecnersiernseseaecneriiaasiecwneianedens 9 1 6 Connecting the electrodes ccccsseecceeeeeseseeeeeeeeeeeeeeeeeeeeeeeeeeenees 10 1 7 Inserting replacing the dry cell batteries ccsseeeeeeeeseeeeees 12 1 8 Connecting the AC adapter 0 cc eeccceeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeenees 14 2 Taking Measurements 2 20005 15 2 1 Turning the meter ON OFF cccccccsssseeeeeeeeeseeeeeeeeeeeeeeseneeeeeeeeeseees 15 2 2 Settings required before measurement cccesseseeeeeeeeeeees 15 2 3 Measurement modes ccseeceeeeeeeesseneeeeeeeeeeeeeeeeeeeeesseeneeeeeeeeneees 16 2 4 Selecting the measurement modes ccccseceeeeeeeeeeeseeeeeteeeeeeees 18 2 5 Conductivity measurement cccceseseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeenees 19 3 FUNCUONS set bite dining ete eng 27 3 1 Data memory TUNCUON ssi avedicniitieaientienninnescidivthinstamtsaninertaelduaianelins 27 3 2 Displaying and setting the CIOCK
39. nccasscunpiayicnerandanveatnsnineaustinsvaneuanindvensicunsamenivaninent 72 5 3 Printer output timing esdeccestiinwiccunwasecaverswncesnedsias iuawenterevcuideasetounneant 73 5 4 Printing format reaa aaiae sardana standarra duanean aanika aaant aAa 74 5 4 1 When the ENTER key is pressed in the Measurement mode 74 5 4 2 When the manual data memory storage is performed in the MEASUTEMENE mode rcdi a a bandh AE EE aa ia eaae 75 5 4 3 When the ENTER key is pressed in the Data Memory Call screen 75 5 4 4 When calibration or check is performed in the Calibration mode 76 5 4 5 Test printing format in the Maintenance mode 000e 76 6 Maintenance and Troubleshooting 77 6 1 Conductivity electrode Maintenance ccccccceeeeeeeseeeeeeseeeeeees 78 6 2 Troubleshooting sssiiieseeeaceriieninenni wnt ecdvintnent ones iavauntintendidincum ntuininent 79 6 2 1 Error message Chart 0 ccccceeeeeeeeeeeeeeneeeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeee 79 6 2 2 More troubleshooting cccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseneeeeeeeeeeee 84 T RGICKENCE saisies teaa a een boats 91 7 1 Conductivity MEASUPEMENL cccccceesseeeeeeeeeeeeeeeeeeeeeeseneeeeeeeeeeeeees 92 T2 Specificato S aaa dav cauteaweairacviesncadeuce renret iena tier Aaaeeeaa benassi ain Eear NERE EET 99 7 3 Default Settings wiiseiicidiecatiecisdesidacudcccstaunssadenevecniducndevndidavancwanadentuanas 101 TA Operation MOWCHAMNS vicceisinsssec
40. ng the Echo typed characters locally E option 5 Command input If a command is input the corresponding response data is sent back Command input should be completed within 10 seconds Be sure to first set the meter to the On line mode using the On line Off line command Windows Corporation is a registered trademark of Microsoft 70 HORIBA 5 Printer 5 1 Connecting the printer 5 Printer This chapter explains the printer connection the times printing takes place and printing formats 5 1 Connecting the printer The following printers are compatible with ES 51 Printers O Citizen CBM 910 24RJ100 A Normal paper O Seiko DPU H245AS A03A Heat sensitive paper Attach the printer cable to the printer output connector B Connect your printer only after turning OFF the power to the main unit of the meter E CENNE For the layout of the connector terminals for the printer output cable refer to 7 5 Pin layout of special cables page 103 WEG e printer is not connected remove the printer cable from the meter and put the rubber cap securely over serial communication connector Be sure to use a cable that matches the printer ES 51 71 5 Printer 5 2 Printer setting 5 2 Printer setting Set up the printer using these settings Printer output baud rate 2400 bps Bit length 8 bits Parity none Setting for a plain paper printer CBM 910 Set DIP switch No 6 to ON
41. nit see photo Do not push the electrode with undue force when the pins are not properly aligned r ing _ wD Do not perform this step with wet or uncleaned hands 2 Push the electrode connector into the connector port while turning it clockwise following the grooves see photo and 10 HORIBA 1 Overview of the Meter 1 6 Connecting the electrodes 3 Push the connector cover over the connector see photo being careful to push it straight on without turning it B O The meter will be waterproof only if this cover is placed properly over the connector Temperature connector ES 51 1 Insert the temperature connector into the jack on the main unit until the O ring on the electrode cannot be seen at all see photo _ Ww The meter will not be waterproof if the electrode is not inserted properly We When the temperature electrode is not connected or is connected improperly the automatic temperature compensation ATC will be 25 C 11 1 Overview of the Meter 1 7 Inserting replacing the dry cell batteries 1 7 Inserting replacing the dry cell batteries 12 The dry cell batteries are not placed in the meter before shipping To insert the batteries follow the procedure below Note that if ERR 2 appears on the display while using the meter it indicates that the charge of the dry cell bat teries is running low When this occurs replace the bat teries p
42. nt mode to enter the Data Storage Setting mode 3 Pressing the ENTER key toggles auto data storage function ON and OFF Auto of F Memory interval setting 4 Press the MODE key to toggle between hour minute and second 5 Specify a numerical value using the A and W keys Setting range 24 hours to 2 seconds ES 51 35 3 Functions 3 3 Setting modes Carrying out auto data storage 1 Press the MEAS key to return to the Measurement mode 2 Press the A key Automatic data storage will commence The first data is recorded when the preset time has reached the preset starting time W Do not turn the power ON OFF during automatic data storage The reliability of stored data may be compromised depending on when the ON OFF key was pressed 36 HORIBA 3 Functions 3 3 Setting modes 3 Press the CELL key Automatic data storage will end _W During automatic data storage the MEAS MODE SET ENTER keys cannot be used Data recording time will differ 1 seconds from the time set by the storage interval If the number of stored data items exceeds 300 data storage will stop and the error message ERR No 10 will be displayed 3 3 5 Sample ID setting Setting the sample ID records its sample ID number as well as the measured data at time the data is stored 1 Press the SET key in the Measurement mode to enter the ID Setting mode 2 Use the ENTER key to select the digit
43. of known temperature 03 Automatic Turns Automatic Power off page power off function ON OFF and sets 44 setting time period after which the power will be turned off when no keys are touched 05 Remaining Displays number of data items page data memoriy that can still be stored 45 06 Datamemory Clears all data in the data page clear memory 45 07 Initialization of Initializes all settings to default page setting values 46 08 Printer con Carries out a printing test page nection and 47 printing test 40 HORIBA 3 Functions 3 3 Setting modes LCD check item No 00 Displays all segments of the LCD 1 Press the MODE key in the Maintenance mode to show item No 00 2 Press the ENTER key Compare the LCD screen with this diagram to confirm that all segments of the LCD are displayed ch mW pH DO Salt rey 5 EL Oo Sm ratio Flosist 0608 GHB8E L do 28887 Item No 00 d006cu en MSO d uea Hi in 3 Use the MODE key to proceed to the pai voltage check item No 01 HINT Entering the Maintenance mode Measure Item No Maintenance mode F ment mode selection ES 51 41 3 Functions 3 3 Setting modes 42 Battery voltage check item No 01 The battery voltage V is displayed Item No 01 Gig bari voltage alarm is set at approximately 2 2 V The measured voltage for batteries depends on the curren
44. oint As shown in the diagram use a jumper wire or bent paper clip to short the meter by touching both the center pin and some metal part in the electrode connector If the flaching measured value disappears when this done the meter is nomal Fai mig F O ES 51 87 6 Maintenance and Troubleshooting 6 2 Troubleshooting The temperature display is blinking The temperature display does not change from 25 C The temperature measurement exceeds measurement range Measurement range 10 100 0 C Cause How to solve problem The temperature of the sample solution exceeds the measurement range Check the temperature of the sample solution and change to a sample solution that has a temperature within the measurement range The thermistor connection within the electrode is severed or shorted Measure the resistance of the temperature sensor connector If it is 50 kQ or more at room temperature replace the electrode The electrode connector is not attached properly Attach the electrode connector properly so that the O ring on the temperature connector disappears from sight The main unit of the meter may be defective In Temperature Display Calibration mode See Temperature zero adjustment item No 02 page 43 check whether or not the Minus display appears regardless of whether or not there is a tempera ture connector There is a problem
45. ooves on the meter and then tighten the stop screw k l Batteries Grooves Rubber packing M Check that the rubber packing is twisted and no foreign matter is stuck to it Otherwise the meter may no longer be waterproof Battery life The table below shows the battery life of alkaline batteries during continuous use The life of manganese batteries is about a half of the alkaline batteries Battery life approx 100 hours ES 51 13 1 Overview of the Meter 1 8 Connecting the AC adapter 1 8 Connecting the AC adapter When using the meter with an AC power supply use the designated AC adapter option AC adapter specifications Supply voltage range 100 200 V AC Frequency range 50 60 Hz Current rating Max 370 mA Class2 Power supply Equipment pro tected by double insulation Indoor use only Supply voltage fluc tuations allowed up to 10 When the AC adapter is connected the meter is no longer waterproof Be careful not to let water get into the meter 14 HORIBA 2 Taking Measurements 2 1 Turning the meter ON OFF 2 Taking Measurements This chapter explains how to take basic measurements 2 1 Turning the meter ON OFF Pressing the ON OFF key turns the power on off The ON OFF key functions when it is pressed continuously for about one second to protect against accidental operation 2 2 Settings required before measurement The bui
46. r the Resistivity Measurement mode by pressing the MODE key in the Conductivity Measurement mode ES 51 25 2 Taking Measurements 2 5 Conductivity measurement 26 HORIBA 3 Functions 3 1 Data memory function 3 Functions This chapter describes the various functions of the conductivity meter 3 1 Data memory function The measured data can be stored automatically or manually Auto data memory You can automatically store the data at certain intervals using this function For the setting procedure refer to 3 3 4 Auto data storage setting page 35 Data memory In all measurement modes you can store data when the instantaneous value is measured or the measured value is held HOLD status during the Auto HOLD measurement by pressing the A key The measurement reading is stored along with the temperature data HOLD value instantaneous value ATC MTC and sample ID at the time the measurement was taken After the data number is displayed the screen returns to the initial screeen Up to 300 items of data can be stored in the memory If the number of data items exceeds the maximum limit ERR 10 is displayed and no more data can be stored ES 51 27 3 Functions 3 1 Data memory function W Data cannot be stored unless the value has stabilized or in the CAL mode When the data is stored an ID number for that specific measurement can be registered see 3 3 5 Sample ID setting page 37 Call
47. rement unit minute Cursor for selecting a setting modes Calibration i Setting modes differ history according to model Part name Display Contents Input channel Input channel 1 conp Displayed when measuring conductivity Error No ERANa Displayed when an error is generated Data No DataNo Displayed when the data number has been set ES 51 7 1 Overview of the Meter 1 4 Explanation of display Part name Display Contents Status display OG i Shows error number and data number Autot Blireorg Ea Ey Displayed when AUTO data memory is being performed eject Displayed when the serial communication is active Ate Displayed when temperature compensation function or automatic temperature compensation has been set Displayed during data memory function for 3 sec Displayed while data in memory is being called up and when manual data memory is being called up or blinks when automatic data memory is being called up Displayed when a printer is connected Sometimes displayed when a computer is connected depending on the computer Displayed during manual temperature compensation Not displayed during automatic temperature compensation HOLD Displayed while the data is held HOLD status Blinks during measurement or calibration Meter mode Displayed when in Measurement mode Displayed when in Calibration mode
48. roblem Some effects of Determine if this is the cause by the sample measuring with a stable standard solution The response is slow Cause How to solve problem Some effects of Response time may slow down the sample depending on the properties of the sample solution ES 51 85 6 Maintenance and Troubleshooting 6 2 Troubleshooting 86 The indicated value does not change or there is absolutely no response Cause How to solve problem The key lock function is ON Turn the power OFF and then turn it back ON again The system is locked Turn the power OFF and then turn it back ON again The electrode connector is not Attach the electrode connector correctly attached correctly Conductivity Contact your local HORIBA meter is distributor defective HORIBA 6 Maintenance and Troubleshooting 6 2 Troubleshooting The measured value is blinking The measured conductivity value exceeds the measurement parameters when conductivity value is displayed Display range 0 00 19 99 when cell constant is 100 1 m Cause How to solve problem The sample Change to a sample solution with solution is properties within the measurement inappropriate range The electrode Replace the electrode cable has been severed The main body Check the point described below of the meter is defective Check this p
49. romptly Dry cell battery type AA alkaline _ WD O Insert the batteries paying attention to the orientation of the battery poles and O Removing the batteries will erase the clock data To save the clock data remove and replace the batteries while the meter is connected to the AC adapter sold separately O Replace the batteries only after turning the power OFF Any saved data will not be lost O When opening and closing the battery cover be care ful that no water gets inside the meter Check that the rubber packing is not twisted and no foreign matter is stuck to it Otherwise the meter may no longer be waterproof eg ss The life of the batteries included with the meter may be short because the batteries were used for the operation check before shipping To insert replace the batteries 1 Loosen the screw of the battery cover by using a coin or screwdriver etc The cover is constructed so that the stop screw cannot be completely removed and lost 2 Pull up the screw and remove the battery cover by sliding it out HORIBA 1 Overview of the Meter 1 7 Inserting replacing the dry cell batteries 3 If there are old batteries inside remove them 4 Place the new batteries in the meter verifying the orientation of the poles and 5 Check that the rubber packing is not twisted and no foreign matter is stuck to it 6 Insert the edge of the battery cover into the gr
50. rseedecccesemanasteasuacderducwsucsdasavenseascuecteada 102 7 5 Pin layout of special Cables ccssseeeeceeeseeeeeeeeeeeeeseeeeeeeeeeeneees 103 7 5 1 RS 232C communications cable ccceeceeeeeeeeeeeeeeeeeeeeeees 103 7 5 2 Cable for CITIZEN printer ccccceeeeeeeeeeeeeeeeeeeeeeeeeenneeeeeeeeeeee 103 7 5 3 Cable for SEIKO printer vesviwetincte eis dceidia ete 103 7 6 Spare and optional Parts cccccsssssseeeceeeeseeeeeeeeeeeesseeeeeeeeeeneees 104 Tek Spare partslist onnarnenarn rari a a 104 Te Do iOa A E A A EEE N 105 VI HORIBA 1 Overview of the Meter 1 1 Package contents 1 Overview of the Meter This chapter explains the part names how to connect the electrodes how to replace the batteries and precautions when using the meter 1 1 Package contents The following items are shipped with each HORIBA conductivity meter package Meter main unit 1 unit Dry cell batteries 2 pcs Strap 1 pe ES 51 1 1 Overview of the Meter 1 1 Package contents Soft case Operation manual 1 book _ wD To take measurements you will need electrode s Refer to 7 6 Spare and optional parts page 104 when purchasing the electrode s 2 HORIBA 1 2 Functions 1 Overview of the Meter 1 2 Functions The ES 51 features the following functions Measurement items Required electrode Items standard solution Conductivity Conductivi
51. s in its body eDo not use a hair dryer for drying the meter When the meter is dropped into water or get wet wipe it using soft cloth ePerform the key operation by the fingers not by the hard object like metal stick or rod eBe careful not to let water into the meter when the electrode connector is empty or the AC adapter or serial communications cable has been connected In those states the meter is not water proof e To disconnect the electrode cable or interface cable pull them out with holding the connector part Do not pull the cable part it may cause a breakage eDo not remove the battery gasket or twist it eWhen opening the battery case make sure that no foreign matter is attached to the battery gasket eDo not use any unspecified batteries it may cause a breakage Location of use and storage e The place which room temperature is at 0 C to 45 C e The place which relative humidity is under 80 and free from condensation Do not use or store the meter at e The place of much dust e The place with strong vibration e The place with direct sunlight e The place with corrosive gas generation e The place near from an air conditioner e The place with direct wind Move and Transportation of the meter To transport the meter use the packaging box at the delivery Transportation by any unspecified packing methods may cause a breakage Disposal Standard solution used for the calibration must be under neutralizatio
52. s the ENTER key to toggle between ON and OFF When set to ON set the time for the power to be turned OFF using the A and keys Setting range 1 to 30 minutes Item No 03 2 Press the MODE key to proceed to Item No 05 Remaining data memory HINT Entering the Maintenance mode Measure E Item No Maintenance mode ment mode selection 44 HORIBA 3 Functions 3 3 Setting modes Remaining data memory Item No 05 Displays the number of data items that can still be stored Number of remaining data memory items Item No 05 1 Press the MODE key to proceed to Data memory clear item No 06 HINT Entering the Maintenance mode Measure Item No Maintenance mode F ment mode annie selection Data memory clear Item No 06 1 Pressing the ENTER key clears all the data stored in the memory Pie F oun L L Eii End Item No 06 2 Press the MODE key to proceed to Initialization of setting item No 07 HINT Entering the Maintenance mode Measure Item No Maintenance m q ment mode alptenanen node selection ES 51 45 3 Functions 3 3 Setting modes Initialization of setting item No 07 This mode returns all settings to the default settings Use this mode to return the meter to the original settings when the meter was purchased 1 Press the ENTER key to initialized the settings
53. t The voltage shown in this mode will be a little lower than the actual voltage 1 Use the MODE key to proceed to temperature zero adjustment item No 02 HINT Entering the Maintenance mode Measure Item No Maintenance mode mentmode G selection HORIBA 3 Functions 3 3 Setting modes Temperature zero adjustment item No 02 This mode uses a known temperature to calibrate the temperature compensation value This mode is used when calibrating the temperature of the thermometer 1 Immerse the electrode in a liquid with a known temperature and set the temperature using the A and V keys Setting range 0 0 to 100 0 C 250 2S fic Item No 02 Beg og E sensor attached to the electrode maintains an accuracy of 1 C even without calibration The above mode should be used when a greater precision than 1 C is required 2 Use the MODE key to proceed to Automatic power off setting item No 03 HINT Entering the Maintenance mode Measure Item No Maintenance m To ment mode ane selection ES 51 43 3 Functions 3 3 Setting modes Automatic power off setting item No 03 This turns the Automatic Power off function ON OFF and sets the time until the power is turned off When the Automatic Power off function is set to ON the power to the meter automatically turns off if the keys are not operated for the set amount of time 1 Pres
54. t mode page 75 ES 51 75 5 Printer 5 4 Printing format 5 4 4 When calibration or check is performed in the Calibration mode COND cell constant calibration AME LY 9 gidi ie LOND 1s AABS When calibration is CELL 0 936 1 cm performed 5 4 5 Test printing format in the Maintenance mode Henk Cat BL 23 4567893 lt gt BARCODE EG HIT JKLBNOPORST UM _ abcdefahijklano ear sStuvuxuzt i 76 HORIBA 6 ES 51 6 Maintenance and Troubleshooting Maintenance and Troubleshooting This chapter explains how to perform daily meter maintenance and how to deal with error messages Daily maintenance is vital in assuring accurate measurement and preventing breakdowns before they occur Maintenance of the electrodes is especially important if ignored various problems and erroneous measurements may result This meter is equipped with a convenient error message function If an error message is displayed be sure to take appropriate action 7 6 Maintenance and Troubleshooting 6 1 Conductivity electrode maintenance 6 1 Conductivity electrode maintenance Refer to the electrode operation manuals for how to maintain each electrode Long term storage When an electrode will not be used for a long period of time store it after performing the following procedure Also perform maintenance on the electrode every three to six months 1 Remove the electrode from the meter 2 Use pure de ion
55. tion 83 6 Maintenance and Troubleshooting 6 2 Troubleshooting 6 2 2 More troubleshooting This section explains how to respond to various symptoms of trouble that are not indicated by an error number Nothing shows up on the display when the power is turned ON Cause How to solve problem No batteries Place batteries in the meter The batteries Re insert the batteries with the are loaded with poles correctly oriented the poles reversed The battery Remove the old batteries and voltage is low correctly insert new dry cell batteries Or connect the unit to the optional AC adapter The indicated value fluctuates When there is a problem with the electrode Cause How to solve problem There are air Shake the electrode to remove the bubbles on the air bubbles electrode When there is a problem with the main unit of the meter Cause How to solve problem There is a motor Move the meter to a place where it or other device lis not subject to dielectric effects causing Be sure to ground devices that are electrical using commercial electricity interference 84 HORIBA 6 Maintenance and Troubleshooting 6 2 Troubleshooting Cause How to solve problem The electrode is Connect the electrode correctly not connected correctly When there is a problem with the sample solution Cause How to solve p
56. tion Because the conductivity of a solution is based on its ION conductivity as explained above the higher the temperature of the solution the more active its ions and the higher its conductivity Using a given temperature as the standard and calling that the standard temperature the temperature coefficient expresses how much change expressed in occurs in conductivity when the temperature of the solution changes by 1 C The temperature coefficient is expressed in units of C standard temperature This temperature coefficient is found by assuming that the conductivity of the sample changes linearly in relation to temperature whereas the change in conductivity of an actual sample strictly speaking follows a curve The shape of this curve changes depending on the kind of sample being measured Most solutions however are said to generally have a temperature coefficient of 2 C 25 C standard within a range where the size of the temperature change is not very large The meter is equipped with a built in automatic temperature conversion function enabling them to automatically calculate and display based on the actual temperature measurement the conductivity of a sample at 25 C using a temperature coefficient of 2 C HORIBA 7 Reference 7 1 Conductivity measurement Conductivity and temperature coefficients for various
57. trode principle Measurement Cell constant 100 m lange 5 00 Q m 199 9 KQ m Cell constant 10 m 50 0 Qem 1 999 MQ m Cell constant 1000 m 0 500 Q em 19 99 KQ m Resolution 0 05 of full scale Repeatability 0 5 1 digit of full scale Resistivity items in common among meter models Data memory Max 300 pieces of data capacity Power Dry cell batteries type AA alkaline with automatic power OFF function Ambient 0 45 C temperature Dimensions 170 H x 80 W x 40 D mm Mass of main unit 300g including batteries 100 HORIBA 7 3 Default settings 7 Reference 7 3 Default settings ES 51 Category Item Default values Common Temperature Automatic setting compensation temperature compensation Manual temperature 25 C compensation Automatic power OFF Approx 30 min ON Sample ID 00000 Auto data memory OFF Conductivity Unit S m Temperature coefficient 2 0 C ON Cell constant 1 0 x 100 m 101 7 Reference 7 4 Operation flowcharts 7 4 Operation flowcharts The following flowcharts summarize conductivity meter operations Cell constant setting vO eae tO Release HOLD tO AS Release HOLD to vO Release HOLD Clock display a Clock setting To the Conductivity Measurement mode Repeatability check
58. ts are u S m 0 0 999 9 only one place to the right of the decimal O When units are mS m or S m 0 0000 199 9 After calibration is completed the cell constant coefficient will appear on the screen and be stored in the memory 58 HORIBA 4 RS 232C communications 4 3 On line operation commands Data clear command format C DC CR LF Command code Data clear Header This command clears the data stored in the memory Data IN specification command format C IN CRI LF Command code Data IN specification Header O Valid only when manual data memory is set Power Off command format C OF CR LF Command code Power Off Header ES 51 59 4 RS 232C communications 4 4 Data request commands and responses 4 4 Data request commands and responses This section explains the commands that request meter data Format of responses from meter When no operation can be received ER n CR LF n 0 Communications error 1 Command code does not exist 2 Unacceptable timing entered 3 Data exceeds range When operation has been received A When data is requested the result of the request is sent out according to each format B When an operation command has been issued OK is sent back Format OK CR LF 60 HORIBA 4 RS 232C communications 4 4 Data request commands and responses Clock data request command and response Request command format R OT CR LF Command co
59. ty electrode Salinity Conductivity standard ae solution Resistivity Temperature Functions An overview of the functions found on HORIBA the ES 51 is shown below ES 51 Function Explanation f age No Data memory Stores the data of measured values and page temperature to the memory max 300 27 items Clock Displays the time on the screen and page recorded data 27 Auto Power Automatically turns off power if no operation page OFF is made after 30 minutes 44 RS 232C Enables the communication with a computer page communication using RS 232C 49 Printer output Prints the contents of the memory page 71 AC adapter The meter can be AC powered page connection 14 3 1 Overview of the Meter 1 2 Functions Setting Items Page No Temperature Toggles between Automatic Temperature page compensation Compensation ATC mode that measures 34 the sample temperature using the temperature sensor built in the electrode and Manual Temperature Compensation MTC mode that uses user specified temperature Function Explanation Auto data Stores data automatically at an interval of 2 page memory sec to 24 hours 35 Sample ID Registration of sample ID page 37 COND unit Toggles between S m and S cm page 38 COND Automatically or manually sets temperature page temperature coefficient for a sample 38 coefficient _ Ww RS 23
60. y Minimum Require ment EN61010 1 2001 Installation Environment This product is designed for the following environment Pollution degree 2 Measurement category WARNING Do Not use the equipment for measurements within measurement categories I ll and IV E FCC Warning This equipment has been tested and found to comply withthe 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 This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Precautions for use E Type and Definition of Signal Words For the safety use the meter is equipped with the Warning Labels to alert every operator and user to the possible risk and danger Before using understanding each message The meaning of signal words are as follows WARNING This indicates an potentially hazardous situation which if not avoided will result in death or serious injury CAUTION This indicates a potentially hazardous situation which if not avoided may result in minor or
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