Mettler Toledo M400 PA Guia De Inicio Rapido página 21

CO Two point Calibration
2
Start as in chapter CO
154.5
B
hPa
26.1
B
°C
CO2 Calibration
Type = 2 Point
137.5
B
hPa
26.1
H
°C
Press ENTER when
Sensor is in Buffer 1
154.5
B
hPa
26.1
H
°C
B Point1 = 7.00 pH
B CO2 = 7.07 pH
122.4
B
hPa
26.1
H
°C
Press ENTER when
Sensor is in Buffer 2
2.8
B
hPa
26.1
H
°C
B Point2 = 9.21 pH ...
B CO2 = 8.80 pH
2.8
B
hPa
26.1
H
°C
pH S=74.21% Z=6.948pH
Save Adjust
ONE POINT CALIBRATION described.
2
Select 2 POINT CALIBRATION.
u
Place the sensor in the first buffer solution and press the [ENTER] key to start the
calibration.
u
The display shows the buffer the transmitter has recognized (Point 1) and the mea-
sured value.
u
As soon as the drift conditions have stabilized, the display changes and prompts you
to place the electrode in the second buffer.
Place the sensor in the second buffer solution and press the [ENTER] key to go on
u with the calibration.
The display shows the second buffer the transmitter has recognized (Point 2) and
the measured value.
u
As soon as the drift conditions have stabilized the display changes to show the slope
calibration factor "S" and the offset calibration factor "Z".
For ISM (digital) sensors select ADJUST, CALIBRATE or ABORT to finish calibration.
For Analog sensors select ADJUST or ABORT to finish calibration. See Chapter 6
u
"General Setup" on Page 13
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