Teledyne GFC-7000E - Trace CO2 Analyzer - Manual (Page 185)

Model GFC7000E Instruction Manual THEORY OF OPERATION
04584 Rev A1 174
CAUTION
Should the AC power circuit breaker trip, investigate and correct the
condition causing this situation before turning the analyzer back on.
AC POWER
ENTRANCE
ON/OFF
SWITCH
Cooling Fan
Mother
Board
CPU
PS 1 (+5 VDC; ±15 VDC)
PS 2 (+12 VDC)
Display
Keypad
Pressure
Sensors
IR Source
Pump
GFC
Wheel
Motor
Sync/Demod
M/R &
Segment
Sensors
Heaters
Valve
Options
KEY
AC POWER
DC POWER
RELAY
BOARD
Figure 10-15: Power Distribution Block Diagram
10.4. Interface
The analyzer has several ways to communicate the outside world, see Figure 10-16. Users can
input data and receive information directly via the Front panel keypad and display. Direct
communication with the CPU is also available by way of the analyzer’s RS232 & RS485 I/O ports
or an optional Ethernet port. The analyzer can also send and receive different kinds of information
via its external digital I/O connectors and the three analog outputs located on the rear panel.