Instruction Manual CyberScan pH 10 & pH 100 Hand-held pH / mV / Temperature / RS 232 Meter pH 10 Meter pH/mV/°C pH 100 Meter pH/mV/°C/RS 232 68X007106 09/2001 rev 4 Technology Made Easy ... PREFACE This manual serves to explain the use of the Standard CyberScan series hand-held meters. The models covered are the CyberScan pH 10 and the CyberScan pH 100 hand-held meters. The manual functions in two ways, firstly as a step by step guide to help the user operate the meter. Secondly, it serves as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the CyberScan pH meters as possible. If there are doubts in the use of the CyberScan pH 10/100 meters, do not hesitate to contact the nearest Eutech Instruments Authorized Distributor. Eutech Instruments cannot accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument. Remember to fill in the guarantee card and mail it back to your authorized distributor or Eutech Instruments Pte Ltd (address, contact details, email and homepage information are found on the back page of this manual). The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on the part of the Eutech Instruments Pte Ltd. Note: Lotus® 1-2-3 is a registered trademark of Lotus Corporation. Excel ® is a registered trademark of Microsoft Corporation. Copyright ©1993 Eutech Instruments Pte. Ltd. All rights reserved. Revised in September 2001, revision 4 (version 5). TABLE OF CONTENTS 1 2 2.1 2.2 INTRODUCTION DISPLAY AND KEYPAD FUNCTIONS Display Keypad 2 3 1 2 3 3.1 3.2 3.3 3.4 PREPARATION Inserting the Batteries Connecting the pH Electrode, Temperature Probe & Electrode Holder Connecting the AC/DC Adapter Connecting the RS232C Cable (Only For CyberScan pH 100) 5 6 8 9 5 4 4.1 4.2 4.3 4.4 4.5 4.6 CALIBRATION Preparing the Meter for Calibration pH Calibration with ATC pH Calibration (without ATC) Temperature Calibration Calibration Procedure for Relative mV Measurements (For pH 100 Only) Erasing Calibrated Values (For pH 100 only) 11 11 12 14 15 17 18 5 5.1 5.2 5.3 MEASUREMENT Automatic Temperature Compensation Manual Temperature Compensation Taking Measurements 19 19 20 21 6 7 7.1 7.2 HOLD FUNCTION MEMORY FUNCTION (FOR pH 100 ONLY) Memory Input Memory Recall 22 23 23 24 8 8.1 8.2 PRINT FUNCTION (FOR pH 100 ONLY) Using the CyberScan pH 100 With The Printer Sending Data To Computer 25 25 26 9 9.1 9.2 9.3 9.4 ADVANCED SETUP FUNCTIONS (FOR pH 100 ONLY) Program 1 ­ Software Initialization Program 2 ­ Electrode Data Program 3 ­Meter Configuration Program 4 ­ Communication Setup 28 29 30 32 34 10 10.1 10.2 10.3 10.4 10.5 CYBERCOMM PORTABLE - DATA ACQUISITION SOFTWARE (DAS FOR pH 100 ONLY) System Requirements Loading CYBERCOMM PORTABLE Running CYBERCOMM PORTABLE Capturing And Printing Data Into Computer Using CYBERCOMM PORTABLE Trouble-shooting Guide 36 36 36 42 46 47 11 11.1 11.2 11.3 11.4 ELECTRODE CARE Electrode Maintenance Electrode Cleaning Electrode Activation Rejuvenation Procedure 48 48 49 49 49 12 13 14 14.1 14.2 14.3 ERROR MESSAGES TROUBLE-SHOOTING INFORMATION ON pH MEASUREMENT & ELECTRODE pH Measurements Use of Standard pH Buffers Standard pH Buffers 51 52 53 53 54 55 15 15.1 15.2 15.3 15.4 LIST OF ACCESSORIES Replacement Meter and Meter accessories Calibration Solutions Ion Selective Electrodes (ISE) pH & ORP Electrodes 56 56 57 57 58 16 17 18 METER SPECIFICATIONS ADDENDUM 1: FACTORY DEFAULT SETTINGS (pH 100 ONLY) WARRANTY & RETURN OF ITEMS 59 60 61 1 INTRODUCTION Thank you for selecting Eutech Instruments standard CyberScan pH 10/100 meter. These meters are microprocessor-based instrument and are designed to be handy, capable of allowing one-hand operation. Each has a large custom dual LCD for clear and easy reading. It is a unique and intelligent instrument that has the capability to cater to the preferences of the discerning individual. Both meters have many user-friendly features ­ all of which are completely accessible through the splash-proof membrane keypad. Your meter includes a temperature probe (EC-PHTEM01P), electrode holder, built-in meter stand and batteries. Eutech Instruments offer a wide selection of pH and ORP electrodes. Refer to "Accessories" section for more information. The basic model is the CyberScan pH 10 which is capable of measuring pH, Temperature, and millivolt (mV). The deluxe model is the CyberScan pH 100 which measures pH, Temperature, millivolt (mV) and relative millivolt (Rel mV). It has many advanced features and allows you to customize the meter settings. It also has a RS232C port that allows the meter to be connected to a computer or a printer via a cable for transferring data. For power requirement, you can either use 4 AAA-sized batteries or an AC/DC power adapter (sold separately). Please read this manual thoroughly before operating your meter. 1 2 DISPLAY AND KEYPAD FUNCTIONS 2.1 Display The LCD has a primary and secondary display. · · The primary display shows the measured pH or ORP values. The secondary display shows the measured temperature. The display also shows error messages, keypad functions and program functions. Figure 1: Full LCD Screen 1. SETup mode indicator 2. MEASurement mode indicator 3. CALibration indicator 4. CONfirm indicator 5. MEMory recall mode indicator (For pH 100 only) 6. pH indicator 7. Relative mV indicator (For pH 100 only) 8. mV indicator 9. pH buffer selection indicator 10. Temperature indicator 11. Automatic Temperature Compensation indicator 12. mV measurement mode indicator 13. Rel mV measurement mode indicator (For pH 100 only) 14. Temperature measurement mode indicator 15. pH measurement mode indicator 16. ON & OFF indicator 17. Low battery indicator 18. Probe indicator 19. Buffer indicator 20. ERRor indicator 21. Printer indicator (For pH 100 only) 22. HOLD indicator 23. READY indicator 2 2.2 Keypad A large membrane keypad with tactile feedback makes the instrument easy to use. Each button, when pressed, has a corresponding graphic indicator on the LCD (Figure 1). Some buttons have several functions depending on its mode of operation. Key ON/OFF HOLD MODE Function Powers on and shuts off the meter. The meter will start in pH measurement mode. Freezes the measured reading. To activate, press HOLD while in measurement mode. To release, press HOLD again. Selects the measurement parameter. Default is pH measurement. Press MODE to toggle between pH, Temperature, Rel mV (only pH 100), mV, & back to pH measurement mode. Toggles between Calibration and Measurement mode. 1. 2. 3. If you are in pH measurement mode, press CAL/MEAS to enter pH calibration mode. If you are in temperature measurement mode, press CAL/MEAS to enter temperature calibration mode. If you are in Rel mV (only in pH 100) measurement mode, press CAL/MEAS to enter Rel mV measurement calibration mode. CAL/MEAS While in SETup (only in pH 100) menu, pressing CAL/MEAS takes you out and into the measurement mode. CON !/" CONfirm function: Press to confirm values in Calibration mode and to confirm selections in SETup mode. In Calibration mode: 1. 2. 3. If you are in pH calibration mode, press ! or " key scrolls up or down the buffer calibration values. If you are in temperature calibration mode, press ! or " key to adjust temperature values in °C. If you are in Rel mV (only in pH 100) calibration mode, press ! or " key to adjust mV values. In SETUP mode (only in pH 100): Press ! or " key to scroll through options in each SETup programs. MI / MR (only in pH 100) In measurement mode (pH, Rel mV or mV) press MI (memory input) to store values with its corresponding temperature values in the memory. Press MR (memory recall) to retrieve data from memory. Allows you to print current measurement to either the printer or the computer. (only in pH 100) SETUP (only in pH 100) Takes you into the SETUP mode. This mode lets you customize meter preference and defaults, view calibration, electrode offset data, clear memory, change pH resolution, and communication protocol setting. 3 Figure 2: Keypad of pH 10 meter Figure 3: Keypad of pH 100 meter 4 3 PREPARATION 3.1 Inserting the Batteries The CyberScan is packaged with 4 "AAA" alkaline batteries required for operation. To insert the batteries into the CyberScan, follow the procedure outlined below. 1. 2. Use a Phillips Head screwdriver, remove the two screws (Figure 4) with the hinge closed. Remove the battery cover. Note the polarity and insert the batteries into the battery compartment correctly (Figure 5). 3. Replace the battery cover into its position and screw back using the two screws removed earlier. Your CyberScan hand-held meter is now ready for operation. Figure 5: Battery position Figure 4: Take out battery cover by removing 2 screws 5 3.2 Connecting the pH Electrode, Temperature Probe & Electrode Holder The Eutech Instruments CyberScan pH 10/100 meter uses any standard pH, ORP, or Ion Selective Electrode (ISE) with a BNC connector. For Automatic Temperature Compensation (ATC), this meter requires a temperature probe with a phono-jack connector. NOTE: It is important that water does not get onto the BNC connector. Also avoid touching the connector with soiled hands. 3.2.1 1. To connect pH, ORP or ISE electrode Slide the electrode connector of the electrode over the BNC connector socket on the meter. 2. Make sure the slots of the connector are in line with the posts of the socket. 3. Slide the BNC connector of the probe over (Figure 6). 4. Rotate and push connector clockwise until it locks. Figure 6: Connect pH or ORP electrode using BNC 5. To remove electrode, push and rotate the connector anti-clockwise. 6. While holding onto the metal part of the connector, pull it away from the meter. 7. Be careful not to use excessive force. CAUTION: Do not pull on the probe cord or the probe wires might disconnect. Refer to "Accessories" section for information on temperature probe and other electrodes. 3.2.2 To connect the temperature probe: The temperature probe (provided) uses a phono jack to connect with the socket on the CyberScan. Insert the jack fully into the socket (Figure 7). Figure 7: Connecting the temperature probe 6 3.2.3 Attaching the electrode onto the electrode Holder The CyberScan pH meter is packed with two electrode holders (provided). They are designed for easy use and installation. Care must be taken to avoid use of excessive force in the process of attaching these components. 1. 2. Locate the slot on the right-hand side of the meter. Gently slide the flange of the holder into the slot on the meter. Make sure the holder is secured properly into the slot (Figure 8). 3. You can attach the electrode holder in different positions (Figure 10). Figure 8: Slide in the electrode holder 3.2.4 To attach a second electrode holder: The electrode holder is designed such that you can attach one holder onto another. Up to two electrodes (using the BNC connector and phono-jack) can be used with the CyberScan meter at any one time. 1. 2. Align the flange of the second electrode holder with the slot of the first holder (Figure 9). Slide the flange of the second holder into the slot of the first holder until the tops of the holders are aligned and secure. Figure 9: Connecting 2 electrode holders together 7 3.2.5 1. 2. Insert the electrode into the holder Do not use excessive force when inserting electrodes into the holders. Insert the pH electrode into the opening of the first holder until the top housing of the electrode touches the top of the holder. 3. If you are using a separate temperature probe, insert the probe into the opening of the second holder until the ridge on the housing touches the top of the holder. NOTE: The holder is designed for probes 12 mm in diameter. Electrodes larger than 12 mm may not fit in the holder. Forcing the electrode into the opening may damage the holder or your electrode. The electrode holders can be attached in different positions for greater flexibility in measurement and storage purposes. Simply slide out the electrode holders Figure 10: Different positions using electrode holder and reoriented into appropriate orientation before putting into position. 3.3 Connecting the AC/DC Adapter Besides using four AAA-sized batteries as power source, the CyberScan pH 10/100 meter can also operate from the power mains using an AC/DC power adapter either at 120/220 VAC (sold separately). This is extremely useful if you have an A.C. power source available (e.g. laboratory). Before plugging in, switch off the meter and the power source of adapter. This is a safety precaution that should be adhered to safeguard your CyberScan meter. 1. 2. Switch off the meter and power sources. Select the correct voltage of AC/DC Adapter. See Figure 11. NOTE: Output ...