Teledyne 6200T - Sulfides Analyzer - Manual (Page 303)

6200T Total Sulfur Analyzer Principles of Operation
Teledyen Analytical Instruments 303
13.5. Electronic Operation
Touchscreen
Display
I 2 C
Bus
Iii
(I 2 C Bus)
USB
COM1
(RS–232 ONLY)
o
r
U
S
B
)
COM
2
(R
S
–232
or
RS–485
)
LVDS
transmitter board
Analog In
Pneumatic
Sensor
Board
Sample
Pressure
Sensor
Sample Flow
Sensor
Analog Outputs
Status Outputs:
1 – 8
Control Inputs:
1 – 6
PC 104
CPU Card
Disk On
Module
Flash Chip
Power-Up
Circuit
I 2 C Bus
Analog
Sensor Inputs
Box
Temp
Thermistor
Interface
SAMPLE
CHAMBER
TEMPERATURE
PMT
Temperature
Sensor
A1
A2
A3
Optional
4-20 mA
A/D
Converter
(V/F)
PC 104
Bus
External
Digital I/O)
COM2
Female
Analog
Outputs
(D/A)
RELAY
BOARD
I 2 C Status
LED
PUMP
A4
RS232
Male
CPU
STATUS
LED
IZS PERM-TUBE
TEMPERATURE
Shutter
control
Sample Cal
Valve
Option
IZS Valve
Option
Reaction Cell
Heater
IZS Option
Permeation
Tube Heater
PMT TEC
PMT
TEC Drive
PCA
Internal
Digital I/O
ELECT
R
IC TES
T
C
O
NT
R
O
L
OP
TI
C
T
E
ST
C
O
N
T
R
O
L
PMT O
U
T
PUT
(
PM
T D
E
T
)
HIG
H
V
O
LTA
G
E
P
O
W
E
R
SU
PP
LY
LEV
E
L
PMT TEMP
ER
A
T
U
R
E
PMT
PREAMP PCA
UV Reference
Detector
Ethernet
USB COM
port
MOTHERBOARD
Figure 13-13: 6200T Electronic Block Diagram
The core of the analyzer is a microcomputer that controls various internal processes,
interprets data, makes calculations, and reports results using specialized firmware
developed by Teledyne Analytical Instruments. It communicates with the user as well as
receives data from and issues commands to a variety of peripheral devices through a
separate printed circuit assembly to which the CPU is mounted: the motherboard.