Generate>Gpt: Performing A Gas Phase Titration Calibration; Figure 4-12. Gas Flow Through T750 With O; Table 4-5. Status Of Internal Pneumatics During Generate  Gpt Mode - Teledyne T750 User Manual

G
ENERATE
After having performed a GPTZ, followed by a GPTPS, it is time for the GPT.
IMPORTANT
The following table and Figure show the status of the T750's internal pneumatic
components and internal gas flow when the instrument is in GPT generating mode.
Table 4-5. Status of Internal Pneumatics During GENERATE  GPT Mode
MODE
GPT
1 Only present if multiple cal gas MFC option is installed.
2 In instruments with multiple MFCs, the CPU chooses which MFC to use depending on the target gas flow
requested.
3 Present in T750 with photometer option.
4 Present in T750 with O
Instrument Chassis
DILUENT
INLET
grn
DILUENT
Valve
brn
brn
DILUENT
CAL GAS PRESSURE
INLET
SENSOR
CAL GAS
PRESSURE
SENSOR
orn
orn
yel
GAS INPUT MANIFOLD

Figure 4-12. Gas Flow through T750 with O

083730750B DCN8606
>GPT: P
ERFORMING A
It is required that a GPT Pre-Set (GPTPS, Section 4.2.5) be
performed before initiating any GPT gas generation.
VALVES
(X = Closed; O = Open)
(D = Deenergized; E = Energized)
DILUENT
CYL
GPT
IN
IN
O O E
generator option.
3
Flow Control
(1.0 LPM)
Pressure
Regulator
grn
ON
brn
Diluent
Mass Flow Controller
O Gen
3
Valve
red
GPT
ON
Valve
yel red
yel
yel
Cal Gas
Mass Flow Controller 1
GPT
Volume
G P T
AS HASE ITRATION
IMPACT ON READINGS OR DATA
O PHOT
3
CAL1
GEN 3, 4 M/R 1
Reference
E ON
2
Phase
gry
O GAS INPUT
3
PRESSURE SENSOR
PHOTOMETER
PRESSURE SENSOR
O GEN / PHOTOMETER
3
PRESSURE / FLOW SENSOR PCA
Flow Control
(800 cm 3 )
OFF
blk
blu
Options when in GPT Mode
3
C
ALIBRATION
MFCs
PHOT
PUMP
3
CAL2 1 DILUENT
ON ON OFF
2
PHOTOMETER BENCH
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
95