LaMotte 5-1936-01, Руководство пользователя

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3.1.2 Changing the pH Buffer Group
The meter can be calibrated with pH standards of USA, NIST (nSt) or
Low Ionic (Pb) pH bu ff er groups. The factory default is the USA bu ff er
group. To abort the bu ff er group selection, press CAL to revert to the pH
measurement mode.
1. Power o ff the meter while in pH mode. Press and hold MODE
then press ON/OFF . If successful, “ bUF ” will blink on the
display. Release both keys.
2. Press HOLD/ENTER to enter the bu ff er group selection mode.
3. Press MODE to toggle between the available pH bu ff er groups.
4. Press HOLD/ENTER to con fi rm the pH bu ff er group. Note: if
Pb is selected, measurement mode will begin. If USA or nSt is
selected, proceed to step 5.
5. Press MODE to toggle between the desired number of calibration
points (Pt). Note: During pH calibration mode, the meter will
automatically complete calibration after the number of points
selected here has been completed.
6. Press HOLD/ENTER to con fi rm the number of calibration
points. The meter will automatically begin the measurement
mode.
Note: To abort the bu ff er group selection or go back one step,
press CAL .
4 5
2 3