Chapter 1. Introduction
2 PanaFlow™ XMT1000 User’s Manual
Figure 3: PanaFlow Z3
Figure 4: PanaFlow LZ
1.2 Theory of Operation
The XMT1000 uses a procedure called Transit-Time Flow Measurement. In this method, the flowmeter transmits
ultrasonic pulses through a moving liquid. The pulses that travel in the same direction as the fluid flow (downstream)
travel slightly faster than the pulses that travel against the fluid flow (upstream). The difference in transit times is
then used to calculate flow velocity.
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