Rosemount 3152 - Rosemount 3150 Series Transmitter Operation

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