User manual EUTECH INSTRUMENTS PH 2700

[. . . ] Instruction Manual 2700 Series Benchtop Meters pH 2700 ION 2700 CON 2700 DO 2700 PC 2700 Technology Made Easy . . . Part of Thermo Fisher Scientific 68X544001 Rev 1 Sep 2010 TABLE OF CONTENTS 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Keypad and Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Navigation of Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Meter Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. System Setup & Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Stability Criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Auto Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Print Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Date & Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Clear Datalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Factory Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Contrast Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4. [. . . ] When using multi-point calibration, perform a calibration in each range that you expect to use for best results. If the electrode has been stored dry for some time, soaking in alcohol or clean water for a few minutes can help performance. 1) Turn meter on, press MODE if needed for the appropriate mode. 2) Press CAL if needed to enter calibration mode. Rinse the electrode with clean water then submerse into your calibration standard. 3) Use the up/down arrows to adjust the cell constant manually or press NEXT to keep the nominal cell constant value and proceed with a typical manual calibration (recommended). If adjusting the cell constant manually, press ENTER after `Stable' appears to confirm the adjustment. Before and after a manual calibration constant adjustment 4) The upper display is the active reading while the lower display is the factory default value without calibration. Use the up/down arrows to adjust the upper display to match the desired calibration value. Press ENTER after `Stable' appears to confirm the calibration. The calibrated value, Range (R) that was calibrated and the calculated cell constant are now shown. 25 Before and after a manual calibration 5) For multi-point calibration repeat with additional standards. Press ESC to save calibration or press NEXT to view the calibration report. Calibrate one point per range, up to 5 points. Additional manual calibration notes: A maximum of one calibration point per range can be performed. If multiple calibration points are used in the same range, the most recent one will replace the previous one. When the electrode is replaced, it is best to clear the calibration to the factory default values. Rinse or immerse the probe before calibration and between samples with clean water (deionized water is ideal). To protect from erroneous calibrations, the allowable tolerance is ±40% of the factory default value. For best results always begin with your lowest calibration standard value, followed by the next lowest, and so on. Low conductivity standard solutions (less than 20 µS) are unstable and are very temperature dependent. As a result, reproducible calibration results are challenging in lowest measurement range #1 (0. 00 to 20. 0 µS). Note: If using the 2-cell electrode, the protective probe guard can be removed temporarily for cleaning however it must be re-attached during measurement and calibration. Erroneous results will occur while the probe guard is removed. 26 13. Ion Setup from the Use Setup Ion mode to customize this parameter. Press measurement screen and then press ENTER when ION is selected. Sample ID This is a user selectable number from 1 to 99999. [. . . ] Disable this feature to keep digits solid at all times or keep this feature enabled while changing the "Stability Criteria" to "Slow" Please send us a written request with your name, contact information, along with the instrument serial number; a temporary password will be provided. Often when a timed datalog is used, it runs until the memory is full. To erase the stored data, go to System Setup, CLEAR LOG. Auto-Read is active (measurement locks automatically when stable). [. . . ]