Outline Of Product; Outline; Measuring Principle - Fuji Electric FLR-3 Instruction Manual

This flowmeter is a clamp-on type ultrasonic flowmeter for permanent use based on transit time measuring method.
The easy-to-use compact and lightweight design is intended for integration into mechanical devices.
The flowmeter applicable to small and medium size pipes of diameter range from 25mm to 1200mm provides superior cost
performance.

1.1.1. Measuring principle

Measuring principle
Ultrasonic pulses are propagated aslant from the upstream and downstream sides, and the time difference caused by the
flow is detected to measure the flow rate.
Mounting the detector
Configuration diagram
(1) Single-path system (V method)
Signal cable
Detector
INF-TN3FLR-E

1. OUTLINE OF PRODUCT

1.1. Outline

Detector
Upstream sensor
θ
t 2
t 1
Flow velocity
Downstream sensor
Ultrasonic transducer
4 to 20mA
DC
Flow
transmitter
Contact
Power supply
Output signal
D Flow
transmitter
Plastic wedge
Pipe
Lining
(2) Single-path system (Z method)
Signal cable
Detector
4 to 20mA
DC
Flow
transmitter
Contact
Power supply
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