Controller / User Interface | 4-53
Cancel Calibration button
Cancels the calibration sequence (Manual
Zero, Auto-Zero, Span).
Calibration Timers
Allows you to set up the timers used during calibration.
Manual Calibration Enter a time value (default = 60 seconds) for
the Integration Timer(sec), during which the
concentration reading for each of the species
is averaged. The Integration Timer may be
set to a duration from 0–65535 seconds.
Sample Delay (sec) Enter a time value (seconds) that sets the
time delay for the AUTO/MANUAL relay
to continue indicating that a calibration
(Zero) is in progress after completion of the
Zero. This function also sets the time delay
that the Normal/Fault relay will wait before
indicating the fault alarm has been cleared.
This allows for a smooth transition from the
Zero/Span gas back to the sample gas. Enter
‘0’ to turn off the timer.
Auto Calibration Timers
Allows you to enter a time value (in minutes) for the Auto-Zero.
AZ-0 Enter a value that defines the duration that
the solenoid combination is active during an
Auto-Zero. The time can be set from 0–255
minutes (default = 4 minutes). Enter ‘0’ to
turn off the timer.
AZero Interval (hr) Enter a value (hours) that controls the
interval between Auto-Zero sequences. The
interval can be set from 0–999. Enter ‘0’ to
turn off the timer, disabling a timed start of
the Auto-Zero sequence.
The Auto-Zero will be included in the Auto-
Calibration sequence if Auto-Zero is enabled
and Timer0 duration is not ‘0’.
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