Theory of Operation Teledyne API – Model T300/T300M CO Analyzer

308

Analog Outputs
Sample Flow
& Pressure
Sensors
Status Outputs:
1 – 6
Control Inputs:
1 – 8
Power-Up
Circuit
Internal
Digital I/O
I2C
Bus

Sensor Inputs

Box
Temp
Thermistor
Interface
SAMPLE
TEMP
BENCH
TEMP
WHEEL
TEMP
A1A2A3
Optional
4- 20 mA

MOTHER

BOARD

A/D
Converter(
V/F)
PC 104 Bus
External
Digital I/O)
Analog
Outputs
(D/A)
TEC Control
PHT
Drive
Detector
Output
Segment Sensor
M / R Sensor
GFC
Wheel
GFC
Motor
Zero/SpanValve Options
Wheel
Heater
Bench Heater

Optical

Bench

RELAY
BOARD
IR
Source
Photo-
detector

SYNC

DEMOD

C

O

M

E

A

S

C

O

R

E

F

CPU Status
LED
Schmidt
Trigger
PUMPA4
Optional
O2 Sensor
Optional
CO
2
Sensor
O2 SENSOR
TEMP

(optional)

COM2
Female
RS232
Male
ANALOG
IN Ethernet
USB COM
port
Touchscreen

PC 104

CPU Card

Disk On
Module
Flash Chip
Display
(
I
2
C Bus
)
LVDS
transmitter
board

Figure 13-9: Electronic Block Diagram

06864B DCN6314