Figure 2-18. Flow With O - Teledyne T750 User Manual

in the tube. The O
during the measure phase (O
When the photometer option is installed, a third more precise and stable option, called the
BENCH feedback mode, exists for controlling the output of the O
BENCH mode the intensity of the O
concentration of the O
measurements made by the photometer.
The O photometer option requires that the O
3
and 9.8 for more details on their operation.
Instrument Chassis
DILUENT
INLET grn
DILUENT
Valve
brn
brn
DILUENT
PRESSURE
SENSOR
CAL GAS
PRESSURE
SENSOR
orn
CAL GAS
INLET orn
yel
GAS INPUT MANIFOLD

Figure 2-18. Flow with O

083730750B DCN8606
content of the gas is calculated based on the ratio the UV light intensity
3
present) and the reference phase (no O
3
generator's UV lamp is controlled (and therefore the
3
created) by the T750's CPU based on the actual O
3
Flow Control
(1.0 LPM)
Pressure
Regulator
grn
brn
Diluent
Mass Flow Controller
O Gen
3
Valve
GPT
Valve
red
yel
yel
yel
Cal Gas
Mass Flow Controller 1
GPT
Volume
Generator and Photometer (Options in T750)
3
generator also be installed. See Sections 9.7
3
gry
O GAS INPUT
3
PRESSURE SENSOR
PHOTOMETER
PRESSURE SENSOR
O GEN / PHOTOMETER
3
PRESSURE / FLOW SENSOR PCA
Flow Control
3
(800 cm )
PUMP
red
blk
blu
present).
3
generator. In
3
concentration
3
PHOTOMETER BENCH
(option)
Photometer Loop
vio
PHOTOMETER
INLET
vio
REF/MEAS
Valve
wht
wht
PHOTOMETER
ZERO IN
PHOTOMETER
ZERO OUT
gry
INTERNAL
VENT
PHOTOMETER
OUTLET
On Output Panel
blk
EXHAUST
CAL GAS
OUTPUT
blu
43