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Principles of Operation
Teledyne API
– T200 NO/NO2/NOx Analyzer Operation Manual
302
13.3. ELECTRONIC OPERATION
13.3.1. OVERVIEW
Figure 13-11 shows a block diagram of the major electronic components of the analyzer.
SENSOR MODULE
Flow/Pressure Sensor PCA
Optional
Internal Pump
Analog Outputs
Aout 1
Aout 4
Analog Outputs
(D/A)
External Digital I/O
Power Up
Circuit
PC 104 Bus
PC 104
CPU Card
Disk on
Module
Flash
Chip
Aout 3
Aout 2
TEST CHANNEL OUTPUT
Optional O
2
Sensor Concetration
Status
Outputs
1 - 8
Control
Outputs
1 – 6
Optional
Current
Loop
Outputs
CPU
Status
LED
I
2
C Bus
Reaction Cell
Heater
Thermistor Interface
Box
Temperature
Reaction Cell
Pressure Sensor
O
3
Flow Sensor
A/D
Converter
AutoZero Valve
NO/NO
X
Valve
RELAY PCA
I
2
C Status
LED
Internal Span
Gas Generator
Perm Tube Oven
Temperature
(Optional)
Reaction Cell
Temperature
NO Concentration
NO
x
Concentration
MOTHERBOARD
NO
2
to NO Converter
Thermocouple Sensor
Sample Pressure
Sensor
Sens
or
Inp
uts
NO
2
Concentration
NO
2
to NO
Converter Heater
Internal Span Gas
Generator Perm Tube
Oven Heater
Zero/Span
Valve
(Optional)
Pressurized
Span Shutoff
Valve
(Optional)
Sample/Cal
Valve
(Optional)
PMT PREAMP PCA
Thermo-Electric Cooler
Drive PCA
PMT Thermo-
Electric Cooler
PMT
High
Voltage
Power
Supply
Internal
Digital I/O
Electric Test Control
Optical Test Control
PMT
Outpu
t (
PM
T
D
E
T
)
High
Voltag
e Power
Supp
ly
Le
vel
PMT
Temp
erature
PMT
Temperature
Preamp Range HI
O
3
Gen Status
O
3
Generator
O
2
Sensor
Temperature
(Optional)
Display
Touchscreen
C
OM
2
(RS
-232
or RS-
485)
Ethernet
or
U
SB
(
I
2
C Bus)
RS232
Male
COM2
Female
USB COM
port
IN
ANALOG
LVDS
transmitter board
USB
Figure 13-11: T200 Electronic Block Diagram
06858E DCN7057
Summary of Contents for T200
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