Theory of Operation Teledyne API T703 Calibrator Operation Manual
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9.5.2. GENERATOR PNEUMATIC OPERATION

The rate of flow through the O3 generator is controlled by a flow control assembly located on the Regulator Sub-
Assembly in the front of the T703.
Measure / Reference
Valve for
Photometer Bench
O3 Outlet to
Photometer
and
Internal Vent
O3Generator
Gas Inlet
O3 Outlet
O
3
Generator
Heater Control PCA
Figure 9-13: O3 Generator Valve and Gas Fixture Locations

9.5.3. O3 GENERATOR ELECTRONIC OPERATION

Electronically the O3 generator and its subcomponents act as peripheral devices operated by the CPU via the
motherboard. Sensor signals, such as the UV lamp thermistor are routed to the motherboard, where they are
digitized. Digital data is sent by the motherboard to the calibrator’s CPU and where required stored in either
flash memory or on the CPU’s disk-on-chip. Commands from the CPU are sent to the motherboard and
forwarded to the various devices via the calibrator’s I2C bus.
07223B DCN6378