If you configure Interactive Calibrations, enabled cals will be controlled by a user via a menu interface. Interactive cals are often used for highly manual procedures, such as testing opacity instruments against standard filter. Interactive Cal configuration screen has the following fields (Figure 3-24):

• Calibration Type will be already filled in (Interactive_M)
• Calibration Name is required to identify the cal program.
• Check Enabled if the calibration is to run
• Number of Calibration Records determines how many cals the data logger will store before overwriting.
• Recovery Time specifies the time required to purge cal gas after phases
• Affected Channels determines which channels will be taken off-line during cal. Select from a list of previously configured parameters.

Figure 3-24 Configuring Interactive (Menu) Calibrations