Operating Instructions Setup Menu (To change setting): Oakton® EcoTestr pH2+ Waterproof Pocket Tester 1. Remove cap and press button to turn on the tester. 4. When pH reading stabilized, the the measurement. button to enter the Setup Menu and ‘bUFF’ will appear. button and ‘bUFF USA’ will appear for selection. menu button to toggle between ‘bUFF nISt’ & ‘bUFF USA’ for selection. 4. Press button to accept & display showing ‘donE’ to confirm the new selection & return to ‘bUFF’. 2. Dip sensor in at least 20 mm of test solution. 3. Stir gently and wait for the flashing menu 2. Press 3. Press Measurement: 5. Press the 1. Press 5. Press to stop. menu 6. Press will appear on display & user can take 7. Press button to toggle from ‘bUFF’ to ‘r.SEt’. button and ‘r.SEt nO’ will appear for selection. menu button to toggle between ‘r.SEt nO’ & ‘r.SEt YES’ for selection. 8. Press button to accept & display showing ‘donE’ to confirm the new selection & return to ‘rSEt’. button again to switch off tester. Note: Tester automatically shuts off after 8.5 minutes of nonuse to conserve batteries. 9. Press menu button to toggle from ‘r.SE t’ to ‘dEg’. Calibration: 10. Press 1. This tester allows up to 3 Point to Point Calibration. 11. Press 2. Tester can start with pH 7.00 or pH 4.01 or pH 10.01 buffer. 12. Press button to confirm accept & display showing ‘donE’ to confirm the new selection & return to ‘dEg’. 3. It will exit to Measurement after each calibration and Calibration Point is accumulative. 4. Remove cap and press button to turn on the tester. cal esc button to start pH calibration. 7. Display will show ‘CAL’ followed by the default pH value & during calibration. 8. When the pH reading stabilized, flashing 9. After the CAL will appear on display will stop. will appear on display, wait for Auto Buffer to lock. 10. After 3 seconds, tester will auto accept or press showing ‘donE’ to confirm the Auto Calibration. button to manually accept & 11. To calibrate additional point(s), repeat steps 5-10 using other pH Buffers. 12. To abort pH calibration, press cal esc menu button to toggle between ‘dEg C’ & ‘dEg F’ for selection. button to toggle from ‘dEg’ to ‘t.CAL’. 14. Press button and e.g. ‘25.0’ (default ATC) will appear on 1st Line & flashing ‘25.0ºC’ (Cal. ATC) will appear on 2nd Line. 5. Dip sensor in at least 20 mm of pH buffer. 6. Stir gently and press 13. Press button and ‘dEg C’ will appear for selection. menu button to escape. Note: Auto USA buffers are 7.0 pH, 4.0 pH & 10.0 pH; Auto NIST buffers are 6.9 pH, 4.0 pH & 9.2 pH. 15. Press menu button to decrease value to the set ATC reading (+/- 5.0ºC/9.0ºF of default ATC). 16. Press button to accept & display showing ‘donE’ to confirm the new calibrated ATC reading & return to ‘t.CAL’. 17. Press menu button to toggle from ‘t.CAL ’ back to ‘bUFF’ again. The Setup Menu cycle will repeat. 18. To exit from Setup Menu back to Measurement Mode, press cal esc button to escape. Error Messages: 1. ‘ ’ – Weak batteries & need replacement soon. 2. ‘bAt Lo’ (Low Battery supply) – Tester automatically shuts off without going to Measurement Mode & batteries need immediate replacement. 3. ‘StBL Err’ (Stabilizing Error) – Manual confirm of calibration when reading still stabilizing. 4. ‘bUFF Err’ (Buffer Error) – Buffer standard out of calibration window. 5. ‘SLPE Err’ (Slope Error) – 2nd or 3rd Point calibration where slope is out of the 80% to 120% window. 6. ‘Or’ (Over Range) – The pH & ATC temperature reading is above the measuring range of tester. 7. ‘Ur’ (Under Range) – The pH & ATC temperature reading is below the measuring range of tester.
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