Rosemount 3150 Series
Reference Manual
00809-0100-4835 Rev BD
July 2016
SECTION 4:
OPERATION
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Theory of Operation . . . . . . . . . . . . . . . . . .
The Sensor Cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Demodulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . .
page 4-1
page 4-2
page 4-3
page 4-4
page 4-5
page 4-5
page 4-5
page 4-5
page 4-5
OVERVIEW
This section provides a brief description of basic 3150 series pressure
transmitter operations in the following order:
•
Transmitter Theory of Operation
•
The Sensor Cell
•
Demodulator
•
Oscillator
•
Voltage Regulator
•
Current Control
•
Current Limit
•
Reverse Polarity Protection
Summary of Contents for 3152
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