LABEC M-MIA-LA - Manual (Page 95)

Ultrasonic milkanalyser
Operation manual 04.11.09 93/107
pH Calibration
pH Measuring
pH En/Disable
pH U Display
-------------------------
pH Test
Co Meter Calibr
Co Meter Test
Co Meter En/Dis
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Exit
8. pH Calibration.
Serves for calibrating the pH meter. For that purpose use 2 standard buffers,
shown on the display as Low buffer (for example 5.00 pH) and High buffer
(for example 7.00 pH). The procedure is following:
1. Start menu Calibration.
2. Put the pH probe in Low buffer.
3. By pressing the buttons of the analyser enter the exact buffer value. The
display shows:
pH Calibr
Put Izopot buff
Buf=xx.xxx
4. Input the buffer value when the probe is in its isopotential point and with
which our probes are accompanied with.
Then the display shows:
pH Calibr
Put Izopot buff
Buf=xx.xxx
V=x.xxxV Set
Where x.xxx is measured by the probe voltage.