Calibration - Mettler Toledo M400 Guide Rapide

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  • FRANÇAIS, page 51
7.0
A
pH
25.0
°C
pH S=100.0 % Z=7.124
Save Calibration Yes
7
O

Calibration

2
For Display setup, analog outputs and setpoints see the section "General Setup".
O
Calibration
2
21.7
A
pH
25.0
A
°C
Calibrate Sensor
Channel B Oxygen
m
21.7
H
%sat
25.0
°C
Point1 = 100.0 %sat
DO = 0.033 %sat
21.7
H
%sat
25.0
°C
O2 S=0.019nA Z=0.000nA
Save Calibration Yes
Enter the pH value of the sample then press the [ENTER] key to start calibration.
After the calibration the slope calibration factor S and the offset calibration factor Z
are displayed. Select ADJUST to save the new calibration values and the successful
Calibration is confirmed on the display. If you select CALIBRATE, the values will not
u
be taken. If an ISM Sensor is used, the Calibration data will be stored in the calibra-
tion history. The "A" in the top left hand corner disappears.
(PATH: Cal)
For multi-channel devices: Using the m and . key on the "Channel A" field lets the
user change the channel to be calibrated.
Enter Calibration mode by pressing the c key.
A flashing "H" (alternating with "A" or "B" to show the channel being calibrated for
multi- c hannel devices) in the top left hand corner shows the ongoing calibration
process.
A DO sensor calibration is always a one point calibration either in Air (Slope) or a
zero (Offset) calibration.
It is possible to select a SLOPE or ZERO CALIBRATION. A one point slope calibration
u
is done in air and a one point offset calibration is done at 0 ppb DO. Press the
[ENTER] key after selecting SLOPE or OFFSET.
Enter the value for Point 1 including a decimal point. DO is the value being measured
by the transmitter and sensor in the units set by the user. Press [ENTER] when this
value is stable to perform the calibration.
After the calibration the slope calibration factor S and the offset calibration factor Z
u
are displayed.
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