Instruction Manual CyberScan CON 10/100/200 Hand-held Conductivity/TDS/Temperature Meter Technology Made Easy ...
Preface This manual serves to explain the use of the CyberScan series Conductivity meters. The models covered are the CyberScan CON 10, CyberScan CON 100 and CyberScan CON 200 portable conductivity and total dissolved solids meters. This manual functions in two ways: first, as a step by step guide to help the user operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the CyberScan Conductivity meters as possible.
TABLE OF CONTENTS 1 INTRODUCTION 2 DISPLAY AND KEYPAD FUNCTIONS 2.1 2.2 3 SETUP program Program 1: Common functions Program 2: Instruments Setup Program 3: TDS Setup (in CyberScan CON 200 only) Program 4: Communication Setup (in CyberScan CON 200 only) CYBERCOMM POTRABLE - DATA ACQUISITION SOFTWARE (DAS FOR CYBERSCAN CON 200 ONLY) 9.1 9.2 9.3 9.4 9.
1 INTRODUCTION Thank you for selecting Eutech Instruments portable meter. This meter is a microprocessorbased instrument that is designed to be handy, user-friendly and capable of allowing one-hand operation. It has a large customized LCD for clear and easy reading. It also has user-friendly features, all of which are accessible through the membrane keypad. It is a unique and intelligent instrument that has capability to cater to the preferences of the discerning individual.
2 2.1 DISPLAY AND KEYPAD FUNCTIONS Display The LCD has a primary and secondary display. The primary display shows the measured conductivity or TDS reading. The secondary display shows the measured temperature. The display also shows error messages, keypad functions and program functions. See Figure 1. Figure 1: Full LCD Screen 1. HOLD indicator 2. SETup mode indicator 3. AUTO indicator 4. MEASurement mode indicator 5. CALibration indicator 6.
2.2 Keypad The large membrane keypad makes the instrument easy to use. Each button, when pressed, has a corresponding graphic indicator on the LCD. See Figure 2. Some buttons have several functions depending on its mode of operation. Key Function ON/OFF Powers on and shuts off the meter. When you switch on the meter, the meter starts up in the mode that you last switched off from.
CyberScan CON 10 CyberScan CON 100 CyberScan CON 200 Figure 2: Keypad 4
3 3.1 PREPARATION Inserting the Batteries Four AAA batteries are included with your meter. 1. Use a Philips screwdriver to remove the two screws holding the battery cover. See Figure 3 below. 2. Lift meter stand to expose battery cover. Remove battery cover. 3. Insert batteries. Follow the diagram inside the cover for correct polarity. 4. Replace the battery cover into its original position using the two screws removed earlier.
To connect the Conductivity/TDS electrode with built-in temperature sensor: a) During this operation, it is important that water does not get onto the BNC connector. Also avoid touching the connector with soiled hands. Slide the electrode connector of electrode over the socket of the meter (BNC connector). Ensure that the slot of the connector is inline with the protrusions of the socket. Rotate the connector clockwise until it locks. Be careful not to use excessive force in this operation.
3.2 Attaching the electrode holder onto the meter The meter has a slot on the side for the attachment of the electrode via the electrode holder. a) The meter provides a slot on the side of the instrument for the electrode holder. Hold the electrode holder over the slot of the meter. Ensure the flange of the electrode holder is facing the slot. Note the orientation to make sure that it is the orientation that you desire (see figure below).
3.3 Attaching the electrode onto the electrode holder Your meter comes complete with an electrode holder. It is designed for easy use and installation. Care must always be taken to avoid use of excessive force in the process of attaching these components. a) Align the end of the electrode (sensor side) with the hole of the holder. Note that the top side of the holder is where the slot begins. b) Always ensure that the diameter of the electrode you intend to use is 12 mm.
Figure 9: Inserting the A.C. power adapter 3.5 Connecting the RS 232C cable (only for CyberScan CON 200) The CyberScan Conductivity CON 200 meter provides an RS 232C output for you to transmit the reading either to a printer or a computer. This is extremely useful in instances where the meter is used for continuous monitoring of a certain process or experiment. The data output to the printer or computer can be then evaluated. The data is output in the ASCII format.
Location of RS 232 port Figure 10: The CyberScan CON 200 RS 232 port 3.5.1 RS 232C Configuration The CyberScan CON 200 meter has a 9-pin female RS 232C connector with the following pinout: PIN NO DESCRIPTION 1 - 2 Transmit Data 3 - 4 DSR (Data Set Ready) 5 GND 6 - 7 CTS (Clear to Send) 8 - 9 - A one-is-to-one connection can be made with a 9-pin RS 232C port of the computer.
CyberScan CON 200 25-pin connector 2 (TxD) --------------------------------------- (RxD) 3 4 (DSR) -------------------------------------- (DTR) 20 5 (GND) -------------------------------------- (GND) 7 7 (CTS) --------------------------------------- (RTS) 4 Refer to Figure 11 for the pin number position. 5 4 9 3 8 2 7 1 6 Figure 11: Pin number position of the 9-pin RS 232 port The meter uses hardware handshake i.e. the meter expects both DSR and CTS lines to be active before it sends data.
4 4.1 CALIBRATION Standard solutions for calibration Select conductivity or TDS calibration solution (available from the distributor) which is close to the expected conductivity of the sample that you want to measure. Ensure that the calibration solution which you use comes with a “Temperature vs Conductivity” or a “Temperature vs TDS” label on it. This information is required during calibration. NOTE: Eutech’s calibration solutions are supplied in shatterproof bottles of 480 ml.
4.3 Calibration procedure 4.3.1 1. Procedure for conductivity calibration (CyberScan CON 10/100/200) If necessary, press the MODE key to select COND mode. The µs indicator appears in the upper right hand corner of the display. 2. Rinse the probe thoroughly with de-ionized water or a rinse solution. 3. Dip the probe into the buffer solution. The end of the probe must be completely immersed into the buffer solution. Stir the probe gently to create a homogeneous sample.
4.3.2 Procedure for TDS calibration (CyberScan CON 10/200 only) Two methods are available for TDS calibration. The first method (Method 1) applies to both CyberScan CON 10 and 200 meters. Method 1 relies on the availability of a table that shows the TDS values of the TDS calibration buffer solution at various temperatures. The second method (Method 2) relies on the availability of conductivity-to-TDS conversion factors at standard temperature such as at 25 °C.
TDS calibration: Method 1 1. Select the TDS standard solution with a value that is closest to the measurements expected in the sample (in this manual, the KCI standard solution 1413 µS is about 706.5 ppm). Check this number by multiplying the conductivity reading by the factor and the result should be the TDS in equivalent units. 2. First, pour enough of the selected sample into two separate clean containers so as to allow the probe to be immersed up to the bleed hole. 3.
8. Use the ! or " key for CyberScan CON 10, or MI/! or MR/" key for CyberScan 200 to scroll up or down respectively to the value of the standard solution at 25 °C. 9. Press the ENTER/RANGE key to confirm the calibration. The CAL indicator will stop flashing and remains on the screen for 3 seconds. Then the meter switches back into the measurement mode and the calibrated value, compensated to the current temperature, is shown on the display.
TDS calibration: Method 2 (for CyberScan CON 200 only) 1. Select the TDS standard solution with a value that is closest to the measurements expected in the sample (in this manual, the KCI standard solution 1413 µS is about 706.5 ppm at 25 °C). 2. Pour about 3 cm of the selected sample into two Press ENTER key repeatedly until you come to P3.0. separate clean containers. 3. Rinse the end of the probe into one of the containers by gently stirring it in the standard solution.
7. Using the MI/! or MR/" key, adjust the value of the primary display until it is the same or close to the selected/calculated value. Confirm the selected value by pressing the ENTER/RANGE key. 8. Exit the SETUP mode and return to the MEAS mode by pressing the CAL/MEAS key upon completion of step 7. Press the MODE key until the TDS mode is entered. The TDS value will be the buffer solution value for the type of TDS solution selected.
5 MEASUREMENT This meter is capable of taking measurements with automatic or manual temperature compensation. Automatic temperature compensation only occurs when a temperature sensor is plugged into the meter. If there is no temperature sensor plugged into the meter, the default manual temperature setting is automatically 25 °C. You can manually set the temperature to match your working conditions using a separate thermometer. 5.
5.2 Manual Temperature Compensation IMPORTANT: For manual compensation, you must disconnect the temperature probe. The ATC annunciator will disappear from the LCD. 1. 2. Press the MODE key to select TEMP mode. Press the CAL/MEAS key to enter Temperature calibration mode. The CAL indicator will appear above the primary display. 3. The primary display shows the current conductivity/TDS secondary reading shows temperature value 25 °C. 4.
5.3 Taking measurements To take readings 1. Rinse the probe with de-ionized or distilled water before use to remove any impurities adhering to the probe body. 2. Press ON/OFF key to switch on the meter. The MEAS annunciator appears on the top center of the LCD. The ATC indicator appears in the lower right-hand corner to indicate Automatic Temperature Compensation. 3. 4. Dip the probe into the sample.
6 6.1 MEMORY FUNCTIONS (IN CYBERSCAN CON 100 & 200 ONLY) Data Input Press the MI/! key in the measurement (MEAS) mode, to input any data into the memory. The meter will automatically store the displayed data into the memory. Model Parameters CON 100 Conductivity & temperature CON 200 Conductivity & temperature and/or TDS & temperature A total of 16 sets of data can be stored into the memory of the meter. The memory stored is identified by the memory number (in hexadecimal numbering format, i.e.
1. Press the MR/" once to recall the last data set. NOTE: Memory Recall (MR) is only accessible in the MEAS mode. Press CAL/MEAS key to return to the measurement mode. 2. Press the MR/" key again to recall the next latest data set stored. NOTE: Memory data is retained even if the power of the unit is switched off (even with the batteries removed). Memory is erased when using Program 1.0 of SETUP (see section 8.2.1). 6.
7 7.1 PRINT FUNCTION (IN CYBERSCAN 200 ONLY) Printing data The CyberScan CON 200 meter is equipped with a key that facilitates the printing of data into the computer in the form of a data file. Using the CyberScan CON 200 meter with the printer 1. To use the CyberScan CON 200 meter directly with a printer, the printer should have either a 9-pin or a 25-pin RS 232 serial port. 2. Printer dip switches should match with the meter communication setup.
7.2 Printing errors The meter displays an error by blinking the printer and error annunciators if the printer is not ready to receive data or if the printer is off. As soon as the printer is ready, the error display will automatically go off. While the meter is displaying the printer error, the user may press the CAL/MEAS key to go back to the measurement mode. Figure 20: Display of printing error 7.
An example of a printout for Printing Measurement Data: Cond: Cond: Cond: Cond: Cond: Cond: Cond: Cond: TDS: TDS: TDS: TDS: TDS: TDS: TDS: 1.00 mS 100 uS 10.0 uS 1.00 uS 199.9 uS 1999 uS 19.99 uS 199.9 uS 0.00 ppm 0.64 ppm 10.0 ppm 10.0 ppm 0.00 ppt 0.00 ppt 1.05 ppm Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: Temp: 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.2 33.
8 8.1 SETTING UP THE CYBERSCAN (FOR CYBERSCAN CON 100/200 ONLY) SETUP program In the SETUP mode in CyberScan CON 100/200 meter, there are four main programs. Each has been divided into several options. The programs and options are elaborated under the following sections: PROGRAM DESCRIPITION SECTION 1 Common functions 2 Instruments setup 8.3 3 TDS units and factor 8.4 4 Communication parameters 8.2 8.
8.2 Program 1: Common functions The following 3 options are commonly used: 8.2.1 P1.0: Memory Clear 16 sets of readings can be stored in the meter. Both conductivity and temperature or TDS and temperature readings are stored. ON Clears all values stored in memory OFF Memory values remain in storage Activation of this option by selecting ON and confirmation of memory clears all memory values.
8.2.3 P1.2: Calibration Status Display The meter can be used to a maximum of five different calibrations in its five ranges of measurement. This SETUP program not only allows you to see if a particular range has been calibrated, but indicates the calibrated value. The secondary value shows P1.2. The range number (i.e. 1, 2, 3, 4 & 5) is indicated in the left corner of the display. While in P1.
8.3 Program 2: Instruments Setup 8.3.1 P2.0: Ready selection Activation of the READY option ensures that the READY indicator is displayed when the electrode reading stabilizes. READY options can be switched on or off by pressing the MI/! or MR/" key as indicated by ON or OFF in the display, followed by ENTER/RANGE key. Under factory default, the option is ON.
8.3.3 P2.2: Calibration Reset P2.2 provides the option to reset all user selectable functions to the default settings. If you toggle the annunciator to ON using the MI/! or MR/" key, and press ENTER/RANGE key, all data will be reset. RESET clears all calibration data in memory (of both conductivity and TDS). You need to power ON the instrument before proceeding with any other functions. Under default condition, RESET option is OFF. NOTE: Data cannot be selectively deleted.
8.3.5 P2.4: Cell Constant Selection - 0.1 / 1.0 / 10.0 This option allows you to select the cell constant of the electrode supplied has a nominal cell constant of 1.0. This option is important to obtain optimal readings in the various ranges of measurement. A table is shown below for K value selection of electrodes. K=0.1 K=1.0 0.00 -19.99 µS Ranges available * * 0.0 -199.9 µS * * K=10.0 0 - 1999 µ S * 0.00 - 19.99 mS * * 0.0 - 199.9 mS * * In Program 2.
8.4 8.4.1 Program 3: TDS Setup (in CyberScan CON 200 only) P3.0 TDS factor The TDS factor for a particular standard solution is a multiplication factor which relates the measurement of conductivity in µS/cm to its equivalent reading in ppm/mg/l. This factor is unique for each solution. This option allows the selection of the TDS factor for the solution to be measured. The TDS factor is shown on the primary display. Toggle the MI/! or MR/" key to select the exact TDS factor. The range of values is from 0.
8.4.2 P3.1: TDS units In default, the meter shows TDS measurement unit in ppm. To select the TDS measurement in mg/l, toggle the TDS units using the MI/! or MR/" key. Press enter key to confirm the selection, and the meter scrolls into P4.0.
8.5 Program 4: Communication Setup (in CyberScan CON 200 only) This program allows you to set up the instrument’s communication parameters of the CyberScan CON 200 meter to enable proper communication with the printer or computer of choice. 8.5.1 P4.0: Baud Rate You can select a baud rate of 2.4, 4.8, 9.6 or 19.2 kbps (kilo bits per second). Under default conditions, the baud rate is set to 9.6 kbps (9600 bps). 1. From COND or TDS measurement mode, press SET key. 2. 3.
8.5.2 P4.1: Parity Parity check allows the receiving unit to monitor the integrity of the data that the meter transmits. To accommodate for the variances in standards used, three different parity checks have been provided. They are as shown in the table below. The default parity is even (2).
8.5.3 P4.2: Stop Bit The Stop Bit allows the selection of the proper stop bit when transmitting to other peripheral devices (such as printers). You can select the stop bit to be 1 or 2 depending upon the model and make of the peripheral device (the instruction manual of the peripheral device should indicate the number of stop bits used). Under default conditions, the stop bit is 2. Figure 35: The Stop Bit option At this point, if the ENTER/RANGE key is pressed, the unit reverts to its measurement mode.
9 CYBERCOMM POTRABLE - DATA ACQUISITION SOFTWARE (DAS FOR CYBERSCAN CON 200 ONLY) The CyberComm Portable software is designed for Eutech’s CyberScan pH 100 and Con 200 meters to allow you a convenient means of capturing data for future analysis using other © software program such as LOTUS 123, EXCEL or DBASE in Windows . Often one finds it cumbersome to record and transfer data from one media to another before the required processing can be done.
Figure 37: Click on 'Browse' button and locate CD-ROM drive Figure 38: Locate the CyberComm Portable Setup program in the CD-ROM under "CyberComm Portable" sub-directory.
Figure 39: Select "Setup" program and click the OPEN button. Figure 40: InstallShield Wizard dialog box appears. Figure 41: Click on Next button.
Figure 42: Key in your name and company name and click NEXT button. Figure 43: To select another Destination Directory to install the program, click on BROWSE button. Otherwise, click NEXT button.
Figure 44: Creating a new program folder. Click on NEXT button. Figure 45: Click on NEXT button.
Figure 46: The CyberComm Portable DAS program is fully installed. Click on FINISH button to end installation.
9.3 Running CyberComm Portable Before running the CyberComm Portable program, please ensure that the RS232 cable is connected between the computer’s serial port and the meter’s port. A 1-meter RS232 cable, 9-pin male to 9-pin female connector (order no. EC-CA01M09F09) is supplied with the CyberScan CON 200 meter. For additional information on the connection, please refer to section 3.5 “Connecting the RS232C cable (only for CyberScan Con 200)”.
Figure 48: The opening screen will appear as above. BUTTONS & CHECK-BOX • Enable Connection – Click this button to enable communication between • meter and computer Clear Readings – To clear all data and start all over again • • Save Readings – To save all data displayed in either *.dat or *.txt format. Time Stamp – To include Time and Data stamp when collecting the data. Time and date information comes from the computer.
Figure 49: Under File Menu setting, you can change various parameters. Under ABOUT menu, details of Eutech Instruments' contact information, email address and updates are shown. MENU • Communication Settings – To set communication port number, baud rate • speed, parity and stop bits protocol Open – To open previously saved data file • • • Save – To save current data captured Save As – To save current data set in another format such as *.dat or *.
Figure 50: Communication Settings for computer's Com port. It must match with COM port settings on CyberScan CON 200 meter. Please refer to Section 3.5.1 “RS232C Configuration” for the settings. COMMUNICATION SETTINGS • • Connecting Use - To select communication port, 1 or 2. Baud Rate - To select different baud rate, 2400, 4800, 9600 or 19200 bps (bits per • second). Parity - To select different parity, Even, Odd or None. • Stop Bits - To select different stop bits, 1 or 2.
9.4 Capturing And Printing Data Into Computer Using CyberComm Portable After matching the Communication Settings between your computer using CyberComm DAS and the CyberSCan CON 200 meter, you can now capture data into your computer for analysis and storage purposes. 1. Ensure the 1-meter RS232 communication cable (supplied with the meter) is connected between the computer and the CyberScan CON 200 meter’s Com port. Refer to section 3.
9.5 a) Trouble-shooting Guide Problem: Unable to PRINT When press PRINT key on the CyberScan CON 200 meter, the “Print” and “Err” annunciators blink on the meter’s LCD screen as shown in Figure 53. Figure 53: "Print" and "Err" icons blinking POSSIBLE CAUSES SOLUTIONS You have not "ENABLE CONNECTION" in the CyberComm DAS program. Click on "ENABLE CONNECTION" in the CyberComm DAS program. The "Communication Settings" in the CyberComm DAS program is different from meter's setup.
10 TROUBLESHOOTING & ELECTRODE CARE 10.1 Troubleshooting ERROR INDICATES PROBABLE CAUSE CORRECTIVE ACTION Wrong key press. Select correct key Upper/lower limit INC/DEC keys presses Reselect parameter reached beyond the allowable limits. within limits 1. 1. MESSAGE (BLINKING) ERR ERR CAL + ERR Invalid key sequence Incorrect solution Enter the correct conductivity/TDS value TDS or conductivity entered.
ERROR INDICATES PROBABLE CAUSE CORRECTIVE ACTION 1. 1. MESSAGE (BLINKING) Incorrect calibration. Reset calibration and re-calibrate with correct parameters. 2. Wrong temperature 2. coefficient %. Reset Temperature compensation %. Incorrect 3. Wrong TDS factor. 3. readings 4. Dirty electrode. 4. Reset TDS factor. Clean electrode in isopropanol. If electrode is coated with contaminants, clean using soft tissue and recalibrate. Not 1. HOLD mode selected. 1. responding to key press 2.
10.2 Electrode Care The most important rule to follow is to always keep the electrode clean to ensure accurate measurements. Always take care not to damage the cell. For general cleaning, the use of de-ionized water will be sufficient. Rinse the electrode thoroughly in the de-ionized water. After cleaning, wipe the electrode dry. Never touch the sensors. For intensive cleaning, when the electrode is contaminated, wash it carefully with isopropanol, after which wash thoroughly with de-ionized water.
11 ADDITIONAL INFORMATION What is Conductivity? In general, conductivity is a value that represents how easily electrical charges can be transported through a conductor. Conductors are substances that permit the movement of electrical charge with relative ease. Figure 39 shows a conductivity cell. It is an electrochemical cell for measuring the conductivity of an electrolyte solution. This cell consists of two electrodes; an anode and a cathode, separated by an electrolyte solution.
Where R = the resistance in ohms (Ω) r = the resistivity (Ω-cm) 2 A = the surface area of the electrode (cm ) L = the distance between the electrodes (cm) -1 k = the cell constant (cm ) The resistivity r is the index of how difficult it is for the current to flow through the solution. This is a constant, determined for each electrolyte. The reciprocal of r is called the conductivity, C, where C=1/r.
12 ACCESSORIES AND CALIBRATION BUFFER SOLUTIONS 12.1 Replacement Meter and Meter Accessories Ordering Code No. Item EC-CON200/03N Deluxe CyberScan CON 200 Portable Conductivity/TDS Meter with RS232C Communication Interface and 16 memory (µS/cm, mS/cm; ppm, ppt, °C) complete with 1 pc of conductivity electrode (EC-CONSEN21B), 1 pc of electrode holder (15X000700), 1 pc of communication cable (EC-CAO1M09F09) and 1 pc of Data Acquisition Software in CD-ROM (EC-DA-2000).
12.2 Calibration Solutions Ordering Code No. Item EC-CON-100BT 100 µS KCI Calibration Solution *, 480 ml bottle. EC-CON-500BT 500 µS KCI Calibration Solution, 480 ml bottle. EC-CON-1413BT 1413 µS KCI Calibration Solution, 480 ml bottle. EC-CON1288BT 12.88 mS KCI Calibration Solution, 480 ml bottle. EC-CON2764BT 2764 µS KCI Calibration Solution, 480 ml bottle. EC-442-50BT 50 ppm 442 Calibration Solution *, 480 ml bottle. EC-442-300BT 300 ppm 442 Calibration Solution, 480 ml bottle.
13 SPECIFICATIONS OF CYBERSCAN CON 10/100/200 Models Conductivity range CON 10 CON 100 0 to 19.99, 199.9, 1999 µS/cm; 0 to 19.99, 199.9, 1999 µS/cm; 19.99, 199.9 mS/cm 19.99 mS/cm ± 1% Full Scale Accuracy Resolution TDS range CON 200 0.05% of Full Scale 0 to 9.99, 99.9, 0 to 9.99, 99.9, 999 ppm; 999 ppm; 9.99 ppt Resolution 9.99, 99.9, 199 ppt 0.01, 0.1, 1 ppm; 0.01, 0.1, 1 ppm/ppt 0.01 ppt 0.0 to 100.0 °C Temperature range Accuracy ±0.5 °C Resolution 0.1 °C TDS factor No.
14 WARRANTY & RETURN OF ITEMS Eutech Instruments warrants this meter to be free from significant deviations in material and workmanship for a period of three years from date of purchase. Eutech Instruments warrants this probe to be free from significant deviations in material and workmanship for a period of six months from date of purchase. Each instrument will have a warranty card with a specific serial number. The warranty card must be endorsed by the Authorized Distributor at the point of sale.
For more information on Eutech Instruments products, contact your nearest Eutech Instruments distributor or visit our website listed below: Manufactured by: Eutech Instruments Pte Ltd. Blk 55, Ayer Rajah Crescent, #04-14/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0863 E-mail: marketing@eutechinst.com Web-site: http://www.eutechinst.
