2.1.3
Lower compartment
The lower compartment consists of the following components:
Backplane
The backplane is the gas chromatograph's (GC's) central printed circuit
board (PCB). Its main function is as a connection point for the GC's
specialized plug-in PCBs. The backplane also hosts connections for analog
outputs and analog inputs, serial ports, and an Ethernet port.
Card cage
WARNING
Explosion
Failure to de-energize the analyzer may cause an explosion and severely
injure personnel.
Before opening the analyzer, disconnect all electrical power and
ensure that the area is free of explosive gases.
Keep cover tight while circuits are live.
Use cables or wires suitable for the marked "T" ratings.
Cover joints must be cleaned before replacing the cover.
Conduit runs to the enclosure must have sealing fitting adjacent to
enclosure.
The card cage holds the specialized PCBs that plug into the backplane. The
following PCBs are housed in the card cage:
•
Preamplifier board
•
Central processing unit (CPU) board
•
Base in/out (I/O) board
•
Heater/solenoid board
The card cage also has four additional slots for the following optional
PCBs:
•
A second preamplifier board
•
A second heater/solenoid board
•
Two optional communications boards
Optional
AC/DC
power
supply
WARNING
Electric shock
Failure to check the power supply label may result in injury or death to
personnel or cause damage to the equipment. Applying 110 to 220 Vac
to a DC power input GC severely damages the GC.
See power supply label prior to connection.
Check the GC's power design to determine if it is equipped for AC or
DC power.
Reference Manual
Equipment description and specifications
2-3-9000-744
June 2022
Rosemount 700XA
37
Summary of Contents for Rosemount 700XA
Page 1: ...Reference Manual 2 3 9000 744 Rev L June 2022 Rosemount 700XA Gas Chromatograph ...
Page 6: ...TxD TD or Sout Transmit data or signal out 6 ...
Page 30: ...Overview Reference Manual June 2022 2 3 9000 744 30 Emerson com Rosemount ...
Page 100: ...Installation and start up Reference Manual June 2022 2 3 9000 744 100 Emerson com Rosemount ...
Page 182: ...Operation and maintenance Reference Manual June 2022 2 3 9000 744 182 Emerson com Rosemount ...
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