ONICON F-4000 Series - Manual (Page 5)

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F-4000 Series Ultrasonic Flow Meter Manual 05/15 - 0707-13 / 18838 Page 5
SECTION 1.0: INTRODUCTION
1.1 PURPOSE OF THIS GUIDE
The purpose of this guide is to provide installation and commissioning procedures and basic
operating and servicing instructions for the ONICON F-4000 Series Ultrasonic Flow Meter.
1.2 PRINCIPLE OF OPERATION
ONICON F-4000 Series Ultrasonic Flow Meters utilize the differential transit time method to
measure the velocity of relatively clean liquids in full pipes. By measuring the difference between
transit times of ultrasonic sound waves travelling between two transducers, the flow velocity and
direction are accurately determined.
1.3 TYPICAL F-4000 FLOW METER
The F-4000 Series Ultrasonic Flow Meter utilizes clamp-on signal transducers that mount on
the outside wall of the pipe. It is suitable for measuring the volumetric flow of liquids in a wide
variety of applications including bi-directional flow applications. The meter is housed in a steel
wall-mounted enclosure with a built-in user interface/display.
TYPICAL INSTALLATION
OUTPUT SIGNALS
4-20mA
Scaled Pulse
Relay Output
ENTER
Precision
Matched
Transducers
Coaxial
Transducer
Cables
Flow
POWER
F-4000 SERIES
FLOW METER
Mounting
Hardware