horiba B-711, Инструкция по эксплуатации

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7.2 Calibration point setting (only for B-712/B-713)
Used to select the calibration points.
4.
Press the CAL switch for 0.5 seconds to change the setting.
Pressing the CAL switch continuously switches the display in turn.
5.
Press the MEAS switch to apply the setting.
The measurement mode is returned.
1.
Press and hold the MEAS switch for over 3
seconds in the measurement mode to
enter the special setting mode.
All items appear on the LCD, and then the dis-
play changes as shown right.
2.
Press the CAL switch until appears.
3.
Press the MEAS switch for 0.5 seconds.
The current setting is displayed.
One-point calibration
Press the CAL switch
Press the CAL switch
for 0.5 seconds.
Press the CAL switch
for 0.5 seconds.
Two-point calibration
for 0.5 seconds.
at pH 4
One-point calibration
at pH 7