Instruction manual

9.0 CALIBRATION SM425 INSTRUCTION MANUAL
Only manual calibrations can be executed. Semi-automatic and automatic calibrations are not
available.
• When semi-automatic calibration is selected:
Either manual or semi-automatic calibrations can be executed. Automatic calibrations are not
available.
• When automatic calibration is selected:
Manual, semi-automatic, or automatic calibrations can be executed.
Select Mode from the Calibration setup display screen(see Figure 9-4). Select manual, semi-automatic, or
automatic calibration.
Figure 9-4 Calibration Mode Setup
9.2.1.2 Selecting Calibration Points
Two-point or one-point calibrations can be selected. “Both” selects a two-point calibration. One-point
calibrations can be run with either the span or the zero point. “Both” is the preferred selection.
Select “Points” from the Calibration setup display screen and then select “Both,” “Span” or “Zero” (see
Figure 9-5 below).
Figure 9-5 Calibration Points Setup
9.2.1.3 Setting Zero-gas Concentration Value
To enter the oxygen concentration of the zero-gas cylinder:
42500001 REV A 147