OHAUS STARTER 2100, Инструкция по эксплуатации

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STARTER 2100 Bench pH Meters EN-11

Press button- to reject the calibration and return to the measurement screen.

Press button- to do the 2-point calibration.
Note:
With the 1-point calibration only the
offset
is adjusted. If the pH electrode was previously
calibrated with 2-point calibration the previously stored
slope
will remain. Otherwise theoretical
100% slope
(-59.16 mV / pH @25 °C) will be used.
4.1.3 Performing 2-point calibration

Perform 1-point calibration as described above.

Rinse the pH electrode with pure water and wipe off water with a tissue.

Place the electrode in the next calibration buffer stir and wait, then press button- ,
“ Cal
2
” displays on the top right of the screen and is blinking. appears and is blinking
during calibration.

When reading is stable (normally the reading does not change in 5s), press button-
to lock the reading and finish 2-point calibration, disappears. The buffer pH value (e.g.
4.01 pH ) with the temperature display on the screen.
The 2-point calibration is finished, now we have 2 options:

Press button- to store the 2-point calibration, the offset and slope are shown on the
display for 3 seconds then returns to the measurement screen.

Press button- to reject the calibration and return to the measurement screen.
Note:
The use of a temperature electrode (e.g. STTEMP30) or a pH electrode with a built-in
temperature sensor (3-in-1 pH electrode) is recommended. If you use the MTC mode, you should
enter the correct temperature value and keep all buffer and sample solutions at the set
temperature. (See 3.1)