Chapter 1.
2
TransPort™ PT878GC User’s Manual
1.1.2
System Description
The TransPort is only one part of the flowmeter system. The other part of the system is the flowcell, which consists of
the pipe and the transducers.
1.1.2.1
The Flowcell
The flowcell is that part of the system that uses ultrasonic pulses to interrogate the flow. It consists of the flowcell pipe
and the transducers.
1.
. FLOWCELL PIPE - The flowcell can either be created in the existing piping (for example, by clamping non-wetted
transducers onto the pipe), or inserted as a substitute pipe section (spoolpiece). The flowcell must provide
mechanical support for the transducers and assure stable conditions for accurate flow measurement.
2.
. TRANSDUCERS - The transducers convert electrical energy into ultrasonic pulses when in a transmit cycle, and
convert the ultrasonic pulses back to electrical energy when in a receive cycle. In other words, they act like
loudspeakers when transmitting the signal and microphones when receiving it. In the TransPort system, each
transducer acts as both a receiver and transmitter, since a series of ultrasonic pulses are alternately sent
upstream and then downstream through the flowcell.
Summary of Contents for PT878GC
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Page 199: ...Appendix A TransPort PT878GC User s Manual 189 Figure 163 The Site Menu...
Page 201: ...Appendix A TransPort PT878GC User s Manual 191 Figure 165 The Program Menu Pipe Option...
Page 204: ...Appendix A TransPort PT878GC User s Manual 194 Figure 168 The Meter Menu...
Page 205: ...Appendix A TransPort PT878GC User s Manual 195 Figure 1 Logging Mneu...
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