User manual EUTECH INSTRUMENTS CYBERSCAN PH 1500 PHION METER

[. . . ] Instruction Manual CyberScan pH 1500 Bench pH/mV Meter Technology Made Easy . . . 68X292327 Rev 0 12/02 PREFACE Thank you for selecting the Eutech Instruments CyberScan pH 1500 bench meter. The instruction manual serves to explain the use of the CyberScan pH 1500 bench meter as a step-by-step operational guide to help you familiarize with the meter's features and functions. It is structured sequentially with illustration of diagrams that explains the various functions and setup menus available. This manual is written to cover as many anticipated applications and uses of the CyberScan pH 1500 bench meter as possible. [. . . ] Access the Clear mV offset values menu from the REL mV Measure screen by pressing the setup key. Use the or key to scroll until the screen displays the Offset screen with the CLEAR icon along. Use the or key to scroll between YES or NO to clear the REL mV offset values. Press enter to confirm the selection. mV View clear press to set value press enter to accept 33 Instruction Manual CyberScan pH1500 5 PH OPERATION 5. 1 Standardization Because electrodes vary in their response, you must standardize or calibrate your pH meter and electrode to compensate for electrode variation. The more frequently you standardize or calibrate, the more accurate your measurements. Standardize at least daily, or more often, for accurate results. The meter allows for automatic calibration with auto buffer recognition for up to 6 buffer values from choice of either 1 of the 3 buffer groups available or 6 custom pH buffer values selected from any of these 3 buffer groups (Depending on buffer selection). It is recommended that you perform at least 2 point calibration for optimum meter accuracy. Always rinse the electrode with tap or distilled water between different pH buffers to avoid carry-over. To delete a previous standardization (if performed earlier), refer to the Section 4. 1. 12 for details on how to clear pH buffer values. 34 Instruction Manual CyberScan pH1500 Press std key to begin standardization. Similarly pressing std key again at the Standardize mode exits and returns to the Measure mode. Press mode key to toggle between different modes until the pH Measure mode is displayed. Immerse the rinsed electrode(s) into a buffer from the selected buffer group. Stir moderately. This meter allows for automatic calibration using up to 6 buffers. 35 Instruction Manual CyberScan pH1500 A. Using Standard Buffer Group a. Press std key to access the standardize mode while you are in the pH Measure mode. Meter starts scanning the buffer from the already selected buffer group. Proceed to step c to begin standardization. Press setup key if you need to select other buffer group. Use or key to select desired buffer group and press enter key to confirm selection. BUFFER select 2 4 7 10 12 save view BUFFER select 1. 68 4. 01 6. 86 9. 18 12. 46 save view 13 6 8 10 13 BUFFER select c. The meter automatically scans and recognizes the pH buffer being standardized, it locks and displays the closest suitable pH buffer value on the screen. When the stable icon appears, the buffer value flashes on the screen, prompting if you wish to confirm the selection. The displayed buffer value flashes momentarily and the meter automatically accepts the calibration point. The first calibration point (pH offset) is successfully performed. d. e. If incorrect selection is made or the electrode condition does not meet the meter's criteria, an error message prompts you to troubleshoot or take remedial action. [. . . ] If there are any further questions regarding maintenance, call the Eutech Instruments Technical Support hotline at (+65) 6778 6876. 12 TROUBLESHOOTING Most troubles arise out of a problem with the electrode, not the meter. However, a meter check can be performed, and is simple to do. To test the meter for correct operation, install the BNC (input) shorting cap. Press the mode key to access the mV mode, and note the mV reading. [. . . ]