Calibration - Mettler Toledo M400 PA Guia De Inicio Rapido

9 O

Calibration

2
One Point Calibration
21.7
A
pH
25.0
A
°C
Calibrate Sensor
Channel B Oxygen
21.7
H
%air
25.0
A
°C
Point1 = 100.0 %sat
DO = 0.033 %sat
21.7
H
%air
25.0
A
°C
O2 S=0.019nA Z=0.000nA
Save Adjust
21.7
H
%air
25.0
A
°C
Calibration Successful
18
(PATH: Cal)
While in Measurement mode press the c key. If the display prompts you to enter the
calibration security code, press the m or . key to set the calibration security code,
then press the [ENTER] key to confirm the calibration security code.
u A flashing "H" shows the ongoing calibration process.
A oxygen 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
is done in air and a one point offset calibration is done at 0 ppb oxygen. Press the
u
[ENTER] key after selecting SLOPE or OFFSET.
Enter the value for Point 1 including a decimal point. Oxygen 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
u
"Z" are displayed.
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
"General Setup" on Page 13