User`s guide

M3000A/M3046AM3015A/M3016A Service Guide
1-42 Introduction to the Instrument
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• Microstream CO
2
Board - consisting of an 80C552 Controller, the memory system (Flash
ROM, RAM, PLA, etc.), the Flow system (FilterLine recognition system, Inlet, solenoid
valve), Measurement Cell (Exciter, IR Source, Detectors and Temp Sensor) and an analog
section with ADC.
• DC/DC Converter Board -connecting to the Floating/Non-floating isolation area on the
Front-End Board. Consisting also of a multiplexer for Front-End Link communication to
the Measurement Server.
• PRESS/TEMP Front-End Board - consisting of the PRESS/TEMP Front-End and theFloat-
ing/Non-floating Isolation area, all feeding signals to the DC/DC Board.
Power Supply
PRESS/
TEMP
Microstream CO
2
BOARD
MUX
+5V+15V
36-60V
28Vpp
+/-2%
Isoblock
Optocoupler and
Power transformer
36 - 60 Volt
Power Sync
RxD/TxD
FEL Addresses
Gas Inlet
Gas Outlet
Pressure or
Temperature
Transducer
SRL Connector
to Measurement Server
}