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Teledyne API – Model T700 Dynamic Dilution Calibrator
Instrument Chassis
grn
DILUENT
INLET
DILUENT
Valve
brn
Purge
brn
Valve
CAL GAS 1
INLET
CAL GAS 2
INLET
CAL GAS 3
INLET
orn
CAL GAS 4
INLET
yel
GAS INPUT MANIFOLD
(on back panel)
Figure 3-25:
06873B DCN6388
Pressure
Regulator
grn
brn
DILUENT
PRESSURE
SENSOR
Diluent
Mass Flow Controller
Cal Gas
CAL GAS
Mass Flow Controller 1
PRESSURE
SENSOR
orn
blu
GPT
Valve
yel
yel
Cal Gas
red
Mass Flow Controller 2
yel
yel
yel
T700 with Multiple Calibration Gas MFCs and O
PERMEATION TUBE GAS GENERATOR PNEUMATICS AND SETUP
The permeation tube gas generator (see Figure 3-26) is an alternative method for
producing known concentrations of stable gas such as SO2, NO2, etc. The generator
consists of a temperature regulated permeation tube oven, a flow restrictor, an optional
output desorber, and a user-supplied permeation tube. The optional desorber can
improve the response time of the calibrator especially when operating with NO2 tubes
(when operating with sulfur based gases it MUST be removed).
The permeation tube consists of a small container of a liquefied gas, with a small
window of PTFE through which the gas slowly permeates at a rate in the nanogram/min
range. If the tube is kept at constant temperature, usually about 50C, the device will
provide a stable source of gas for a year or more. A pneumatic diagram of the T700 with
this option is shown in Figure 3-27, including the generator.
Flow Control
(1.0 LPM)
gry
O
GAS INPUT
3
PRESSURE SENSOR
PHOTOMETER
PRESSURE SENSOR
O
GEN / PHOTOMETER
3
PRESSURE / FLOW SENSOR PCA
PUMP
O
Gen
3
Valve
blk
red
GPT
blu
Volume
PHOTOMETER BENCH
On Back Panel
REF/MEAS
Flow Control
vio
Valve
3
(800 cm
)
wht
gry
INTERNAL
VENT
blk
blu
GAS OUTPUT MANIFOLD
Options 1A and 2A Installed
3
Getting Started
vio
PHOTOMETER
INLET
wht
PHOTOMETER
ZERO IN
PHOTOMETER
ZERO OUT
EXHAUST
PHOTOMETER
OUTLET
CAL GAS
OUTPUT 1
CAL GAS
OUTPUT 2
VENT
69
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