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2 ST 3000 Release 300 and SFC Model STS103 User’s Manual 6/08
1.2 ST 3000 Smart Transmitters
About the transmitter
The ST 3000 Smart Transmitter comes in a variety of models for
measurement applications involving one of these basic types of
pressure:
• Differential Pressure
• Gauge Pressure
• Absolute Pressure
The transmitter measures the process pressure and transmits an output
signal proportional to the measured variable over a 4 to 20 milliampere,
two-wire loop. Its major components are an electronics housing and a
meter body as shown in Figure 1 for a typical differential pressure
model transmitter.
Figure 1 Typical ST 3000 Differential Pressure Transmitter.
Electronics
Housing
Meter Body
The ST 3000 can transmit its output in either an analog 4 to 20
milliampere format or a digital DE protocol format for direct digital
communications with our TPS system, Allen-Bradley PLCs and other
control systems.
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