Teledyne API T703 Calibrator Operation Manual Theory of Operation

171

5 – 6 Seconds Analyzer measures the average UV light intensity of Non-O3 bearing Sample Gas (I0)

during this period.

CYCLE REPEAT EVERY 6 SECONDS

PHOTOMETER
PRESSURE SENSOR
O3GEN / PHOTOMETER
PRESSURE / FLOW SENSOR PCA
O3GAS INPUT
PRESSURE SENSOR
O3FLOW
SENSOR
O3Generator Assembly
O3

GENERATOR

Flow Control
(1.0 LPM)
REF/MEAS
Valve
On Back Panel

Chassis

GAS OUTPUT MANIFOLD
PHOTOMETER
OUTLET
TO ANALYZER
VENT
TO ANALYZER
PHOTOMETER
INLET
EXHAUST
PHOTOMETER
ZERO OUT
PHOTOMETER
ZERO IN

PHOTOMETER BENCH

PUMP

INTERNAL
VENT
Flow Control
(5.0 lpm)
Pressure
Regulator

Filter

DRY AIR
IN
ZERO AIR
IN

PUMP

CHARCOAL
SCRUBBER
blk
blk
blu
blu
orn
orn
orn orn
red
red
pur
pur
grn
grn
yel
yel
Flow Control
(100 cm3/min)
Flow Control
(800 cm3/min)

Figure 9-17: O3 Photometer Gas Flow – Measure Cycle

07223B DCN6378