O3 Generator - Pneumatic Operation; Figure 10-13: O - Teledyne T700 Operation Manual

Principles of Operation
10.6.2. O3 GENERATOR – PNEUMATIC OPERATION
O Generation Valve
3
Flow Control Assembly
O Outlet to Exhaust Fixture
3
(on back panel of calibrator)
Regulator Adjustment
Screw
O Generator Zero Air
3
Pressure Regulator
Regulator
Gas Inlet
Outlet to O
3
Generator
Pressure
Sensor
Outlet from Regulator
294
Pneumatic flow through the O
under pressure. The zero air source must be capable of maintaining a continuous flow
rate of at least 100 cm
case the minimum continuous flow rate must be at least 1.1 LPM.
Input and output gas flow is directed by two valves, both of which must be open:

The diluent inlet valve: This valve is located on the back panel and allows diluent /
zero air into the calibrator.

The O generation valve: This valve is located on the body of the O
3
downstream from the generator chamber itself and directs the output of the
generator to either the GPT mixing chamber or the exhaust vent at the back of the
calibrator.
The rate of flow through the O
assembly positioned between the O
self adjusting pressure regulator on the zero air (diluent ) supply gas line maintains the
pressure across the critical flow orifice of the flow control assembly (see Section
10.2.1.3).
O
3
Gas Inlet
O Generator
3
Heater Control PCA
O Outlet to
3
GPT Valve
3
(100 cm /min)
to O Generator
3

Figure 10-13: O

Generator Valve and Gas Fixture Locations
3
Teledyne API – Model T700 Dynamic Dilution Calibrator
generator is created by supplying zero air (diluent) to it
3
3
/min unless the optional photometer is also installed, in which
generator is controlled by a 100 cm
3
generation chamber and the O
3
Generator
generator is
3
3
/min flow control
generation valve. A
3
Photometer/Vent
Flow Control Assembly
(1.0 LPM)
O Outlet to
3
Photometer
"Zero Out" fixture
and Internal Vent
O Generation
3
Valve
Measure / Reference
Valve for
Photometer Bench
(only present when
photometer option is
installed)
06873B DCN6388