Theory of Operation

Model GFC7001E Carbon Dioxide Analyzer

A1

Analog Outputs

 

 

 

 

 

 

Back Panel

 

 

 

 

A2

Optional

 

 

Connectors

4-20 mA

 

 

 

A3

 

Control Inputs:

COM1

COM2

 

1 – 8

 

 

A4

 

Status Outputs:

 

Optional

 

 

1 – 6

 

Ethernet

 

 

 

 

Interface

 

Analog

External

 

 

 

Outputs

Digital I/O)

 

 

 

(D/A)

A/D

 

RS–232

 

 

Converter(

 

 

 

V/F)

 

or RS-485

Power-Up

 

 

 

 

Circuit

 

MOTHER

 

RS – 232

 

 

 

 

Box

 

BOARD

 

 

 

 

 

 

Temp

 

 

 

PC 104 Bus

 

 

 

 

 

 

 

 

Zero/Span

Thermistor

Internal

Sensor Inputs

I2C

Valve

Interface

Digital I/O

Bus

Options

PC 104

CPU Card

Disk On

Chip

Flash Chip

PUMP

SAMPLE

TEMP

BENCH

TEMP

Status & Control

C

C

Optional

O2

Sensor

O

O

 

 

 

 

 

 

MR E E

FOptional

SCO2 SensorA

Sample Flow

 

RELAY

& Pressure

Keyboard &

BOARD

Sensors

 

Display

CPU Status

 

 

 

LED

WHEEL

TEMP

O2 SENSOR

TEMP

(optional)

Sensor

SYNC

DEMOD

Schmidt

Trigger

TEC Control

 

PHT

Photo-

Drive

detector

Detector

Output GFC

Wheel

Optical

Bench

Segment Sensor

M / R Sensor

IR

Source

GFC

Motor

Wheel

Heater

Bench Heater

Figure 11-9: GFC 7001E/EM Electronic Block Diagram

Teledyne Analytical Instruments

238

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Image 238
Teledyne GFC 7001EM operation manual PC 104 Bus, Mother, Board, Sync Demod