
Model T101 Instruction Manual Principles Of Operation
259
10.4. ELECTRONIC OPERATION
Analog In
Pneumatic
Sensor
Board
Sample
Pressure
Sensor
Sample Flow
Sensor
Analog Out p uts
Status Outputs:
1 – 8
Control Inputs:
1 – 6
PC 104
CPU Card
Disk O n
Module
Flash Chip
Power- Up
Circu it
I2C Bus
Analog
Sensor Inputs
Box
Temp
Ther misto r
Interf ace
SAMPLE
CHAMBER
TEMPERATURE
PMT
Temperat ure
Sensor
A1
A2
A3
Optional
4-20 mA
MOTHER
BOARD
A/D
Converter
(V/F)
PC 104
Bus
External
Digital I/O)
Analog
Outpu ts
(D/A)
RELAY
BOARD
I2C Status
LED
PUMP
(Externall y Pow ere d)
A4
CPU
STATUS
LED
IZS PERM-TUBE
TEMPERATURE
Shutter
control
Sample Cal
Valve
Option
IZS Valve
Option
Sample Chamber
Heater
IZS Option
Permeation
Tube Heater
PMT TEC
PMT
TEC Drive
PCA
Intern al
Digital I/O
ELECTRIC TEST CONTRO L
OPTIC TEST CONTROL
PMT OUTPUT (PMT DET)
HIGH VOL TAGE POW ER SUPPLY L EVEL
PMT TEMPERATURE
PMT
PREAMP PCA
UV Reference
Detector
H2S SO2
Converter
Heater
H2SSO2
CONVERTER
TEMPERATURE SENSOR
H2S SO2
Valve
(
I2C Bus
)
LVDS
transmitter board
Touchscreen
USB
Display
COM2
Female
RS232
Male Ethernet
USB COM
port
COM1
(RS–232 ONLY)
or
USB)
COM 2
(RS–232 or RS–485)
Figure 10-10. T101 Electronic Block Diagram
07266B DCN6485