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Principles of Operation Teledyne API - Model T200H/T200M Operation Manual
290
8.5. ELECTRONIC OPERATION
Figure 8-15 shows a block diagram of the major electronic components of the T200H/M.
Pneumatic
Sensor
Board
Sample
Pressure
Sensor
Vacuum
Pressure
Sensor
O
3
Flow Sensor
Analog Outputs
Status Outputs:
1 – 8
Control Inputs:
1 – 6
PC 104
CPU Card
Disk On
Module
Flash Chip
COM1 (RS–232 ONLY)
COM2 (RS–232 or RS–485)
Power-Up
Circuit
I
2
C Bus
Analog
Sensor Inputs
Box
Temp
Thermistor
Interface
REACTION CELL
TEMPERATURE
MOLYBDENUM CONVERTER
TEMPERATURE
PMT
Temperature
Sensor
A1
A2
A3
Optional
4-20 mA
MOTHER
BOARD
A/D
Converter(
V/F)
PC 104
Bus
External
Digital I/O)
Analog
Outputs
(D/A)
RELAY
BOARD
I
2
C Status
LED
PUMP
(Externally Powered)
A4
CPU
S
tatus
LED
NO/NO
x
Valve
Autozero
Valve
Sample Cal
Valve Option
Option
Reaction Cell
Heater
Molybdenum
Converter Heater
PMT TEC
PMT
MOLYBDENUM CONVERTER
TEMPERATURE SIGNAL
TEC Drive
PCA
Internal
Digital I/O
ELECTRIC TEST CONTROL
OPTIC TEST CONTROL
PMT OUTPUT (PMT DET)
O
2
Sensor
Option
HIGH VOLTAGE POWER SUPPLY LEVEL
PMT TEMPERATURE
PMT
PREAMP PCA
O
2
OPTION
TEMPERATURE
Display
Touchscreen
LVDS
transmitter board
Analog RS232 COM2 USB Ethernet
IN
Male Female COM port
USB
or USB
(I
2
C Bus)
Figure 8-15: T200H/M Electronic Block Diagram
The core of the analyzer is a microcomputer (CPU) that controls various internal
processes, interprets data, calculates data, and reports results using specialized firmware
developed by Teledyne API. It communicates with the user, receives data from and
issues commands to a variety of peripheral devices through the motherboard, the main
printed circuit assembly on the rear panel.
07270B DCN6512