Calibration and Verification Teledyne API T703/T703U Calibrator Operation Manual
132

6.2. CALIBRATING THE O3 GENERATOR

The T703/T703U calibrator’s software includes a routine for automatically calibrating
the O3 generator. A calibration table of drive voltages stored in the calibrator’s memory
is the basis for this calibration. This table is used by the T703/T703U to set initial O3
generator drive settings.

6.2.1. O3 GENERATOR CALIBRATION TABLE

When the T703/T703U is operated in BENCH mode, this table is used for the initial
setting only. After a short delay time, the bench feedback control will take over and
control the O3 generator drive to servo in to the exact concentration requested.
When it is operated in CONST mode, the initial O3 generator drive setting will be set by
the calibration table and does not change.
When the T703/T703U is operated in REF mode, the calibration table sets the initial
drive setting and then the reference detector feedback takes over to maintain the lamp at
a constant intensity as measured by the reference detector. The target value for the
reference detector for a particular target concentration is also stored in this calibration
table.
The instrument software will interpolate between two values in the table when an
intermediate concentration is requested.
For each point included in the table used by the T703/T703U to calibrate the O3
generator the user can set a drive voltage and a dwell time for that point. Each point can
also be individually turned off or on.
07223C DCN6572