Tasseron ELMECO Anleitung Seite 10

CALIBRATING THE pH METER
The special pH sensitive characteristics of the glass bulb decrease as
the probe bulb ages. This means that the potential transmitted by the
probe changes. In order to correct this, it is necessary to calibrate the
meter at least once a month. The best results will be obtained if the
following procedure is followed:
- Rinse the probe in demineralized water and wipe with a tissue
- Place the probe in the pH 7 buffer fluid and stir slightly
- Set the temperature TEMP of the buffer solution and wait 1 minute
- Adjust 7 pH the display to 7.00
- Rinse the probe in demineralized water and wipe with a tissue
- Place the probe in the pH 4 buffer fluid and stir slightly
- Wait 1 minute
- Adjust 4 pH the display to 4.00
- Rinse the probe in demineralized water
- Rinse holder with a little Probecare throw this away and refill the holder
The pH meter is now ready for the next measurement. We recommend
renewing the demineralized water after each calibration process. If the
meter can no longer be calibrated and cleaning the probe brings about
no improvement then it is necessary to replace the probe.
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