pH Meter Instructions.doc


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pH Meter Instructions:
Carl Aschenbrenner
General Operation and Care:
1. Whenever you use the pH meter, print your name, the date, whether you calibrated the meter, and which pH values you calibrated on the user sheet. If the meter has been calibrated recently, you may not need to recalibrate it.
2. Always rinse the electrode with deionized/nanopure water and wipe the sides and tip carefully with a Kimwipe before immersing it in a new standard solution, sample, or its storage solution. If your rinse effluent contains something noteworthy, that is, something that should not be labeled as water, KCl, and AgCl on the disposal container, please bring your own beaker to collect and dispose it accordingly.
3. When finished, remember to turn off the pH meter and put the electrode back in its KCl/AgCl storage solution! Be sure that the red rubber plug is in the electrode filling hole so that the electrode does not dry out.
Calibration:
1. Press CAL. Press the CLEAR key once to remove the existing calibration and again to confirm removal.
2. Stir the electrode in the rinsing buffer of desired pH. Wipe with a Kimwipe. Stir the electrode in the clean buffer of same pH and press the READ key. When the Auto-Eye stops flashing, calibration at that pH plete.
3. Rinse the electrode with clean water, wipe, and repeat step 2 to calibrate at other pH values (only the standard buffers of

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  • 时间2018-06-15