Model 2010D Calibration Setup Page 6-
A number of things should be considered when defining
calibration sequences:
Ozone concentrations used in ozone and GPT calibrations are
most precise when the diluent flow is set the same as that
used for calibration of the ozone generator. Factory
calibrations of the ozone generator are performed at 4,900
cc/min of diluent and 100 cc/min of ozone flow for a total
flow of 5,000 cc/min.
High instrument flows limit the range of the diluting
process and result in higher source gas usage.
Up to 20 calibration sequences may be predefined with up to
20 calibration points allowed per sequence.
Overly complex auto calibration sequences result in
significant amounts of down time while instruments are
undergoing calibration.
Auto Calibrations may occur in one of three ways. The first
method is "Scheduled", in which the 2010D automatically
initiates the calibration sequence at a specified time and steps
through each calibration point. The second method is "Remote
Point Activation", in which an external device initiates and
steps the 2010D through each calibration point, and third,
"Remote Sequence Activation", in which an external device
initiates a calibration sequence, but the 2010D then takes over
and steps through each calibration point.
There are 8 standard User Digital I/O Bits available, expandable
to 24 with the expanded IO option. These bits can be assigned
to control calibration sequence initiation and for stepping
though calibration points or for sensing when calibrations are
active. The bits are normally open, which is signified with a
0. A 1 signifies the bit is active or the calibration point or
sequence is active.
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