Onicon F-4600 Series Operating instructions

11451 Belcher Road South, Largo, FL 33773 • USA • Tel [phone] • Fax [phone]
www.onicon.com • [email protected]
F-4600 FLOW METER
Installation and Operation Guide
05-16
1054-4 / 34405
FLOW AND ENERGY MEASUREMENT

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 2
SAFETY INFORMATION
This meter was calibrated at the factory prior to shipment. To ensure correct use of the meter, please
read this manual thoroughly.
Regarding this Manual:
• This manual should be passed on to the end user.
• Before use, read this manual thoroughly to comprehend its contents.
• The contents of this manual may be changed without prior notice.
• All rights reserved. No part of this manual may be reproduced in any form without
ONICON’s written permission.
• ONICON makes no warranty of any kind with regard to this material, including, but not
limited to, implied warranties of merchantability and suitability for a particular purpose.
• All reasonable effort has been made to ensure the accuracy of the contents of this manual.
However, if any errors are found, please inform ONICON.
• ONICON assumes no responsibilities for this product except as stated in the warranty.
• If the customer or any third party is harmed by the use of this product, ONICON assumes
no responsibility for any such harm owing to any defects in the product which were not
predictable, or for any indirect damages.
Safety Precautions:
The following general safety precautions must be observed during all phases of installation,
operation, service, and repair of this product. Failure to comply with these precautions or with
specic WARNINGS given elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the product. ONICON Incorporated assumes no liability for the
customer’s failure to comply with these requirements. If this product is used in a manner not
specied in this manual, the protection provided by this product may be impaired.
The following symbols are used in this manual:
!
CAUTION
Messages identied as “Caution” contain information regarding potential damage to the product or
other ancillary products.
IMPORTANT NOTE
Messages identied as “Important Note” contain information critical to the proper operation of the
product.
i

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 3
TABLE OF CONTENTS
1.0 INTRODUCTION ...................................................................................................... 5
1.1 PURPOSE OF THIS GUIDE ........................................................................... 5
1.2 TYPICAL F-4600 FLOW METER .................................................................. 5
1.3 STANDARD FEATURES AND SPECIFICATIONS........................................ 5
1.4 WORKING ENVIRONMENT ......................................................................... 7
1.5 WARRANTY AND SERIAL NUMBER .......................................................... 7
2.0 UNPACKING ............................................................................................................. 7
2.1 CHECKING THAT YOU HAVE RECEIVED EVERYTHING .......................... 7
3.0 INSTALLATION........................................................................................................ 8
3.1 SITE SELECTION ........................................................................................... 8
3.2 INSTALLING THE FLOW METER ................................................................ 9
3.3 POWER & SIGNAL WIRING CONNECTIONS ............................................ 12
APPENDIX
A-1 SELECTING THE RIGHT METER & CALCULATING PRESSURE LOSS
A-2 CONDITIONS OF SALE

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 4
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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 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 blind version of the ONICON F-4600 Flow Meter.
1.3 STANDARD FEATURES AND SPECIFICATIONS
• 4-20 mA output for ow rate
• Scaled pulse output for totalization
• All weather NEMA4 enclosure
• ANSI/NSF 61 & 372 compliant (pending)
!
CAUTION
Only qualied service personnel should attempt to install or service this meter. The improper
installation or use of this product may result in a loss of integrity in the piping system.
1.2 TYPICAL F-4600 FLOW METER
The F-4600 Inline Flow Meter utilizes direct path wetted ultrasonic transducers for measuring the
volumetric ow of liquids in a wide variety of applications.
Installation Layout
F-4600 Inline Ultrasonic Flow Sensor
• Flush piping system thoroughly before installing meter
• Acceptable to install in vertical and horizontal pipe
• Position enclosure at 12 o’clock for horizontal pipe
½" FNPT
Conduit
Connection
Connect factory wires
to field wires in appropriate
junction box.
ONICON
Display or
Btu Meter
(optional)
Output signal(s)
to control
system
Y Strainer
Upstream of
Flow Meter
Isolation
valve
Isolation
valve
FLOW
05-14
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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 6
Meter Size Process
Connection Type
Typical Design
Flow
1% of Rate
Flow Range
2% of Rate
Flow Range
Minimum
Flow Cv
(Nominal) (Nominal) (gpm) (gpm) (gpm) (gpm) (gpm)
½” Male NPT 6.6 0.6 – 15 0.15 – 15 0.03 6.08
¾” Male NPT 6.6 0.6 – 15 0.15 – 15 0.03 6.08
¾” (high ow) Male NPT 11 1 – 25 0.25 – 25 0.05 8.81
1” Male NPT 11 1 – 25 0.25 – 25 0.05 8.81
1” (high ow) Male NPT 15.4 1.4 – 35 0.35 – 35 0.07 12.17
1¼" Male NPT 26.4 3 – 60 0.6 – 60 0.12 36.95
1½” Male NPT 44 5 – 100 1 – 100 0.2 51.20
2” Male NPT 66 8 – 150 1.5 – 150 0.3 101.2
2½” Class 150 Flange 110 12 - 225 2.5 - 250 0.5 156.2
GENERAL SPECIFICATIONS*
ACCURACY
FLOW
± 1% of reading over 25:1 turndown
± 2% of reading over 100:1 turndown
Repeatability: ≤ ± 0.2%
OVERALL FLOW RANGE
500:1 turndown
SENSING METHOD
Direct beam path wetted ultrasonic sensors utilizing
differential transit time velocity measurement
METER SIZES (Nominal diameter in inches)
½, ¾, 1, 1¼, 1½, 2 and 2½
PIPING SYSTEM CONNECTIONS
Male NPT threads
2½” meter provided with ANSI Class 150 raised face anges
Optional PN16 or ANSI Class 300
FLUID TEMPERATURE RANGE
32° F to 250° F
AMBIENT TEMPERATURE RANGE
-13° F to 131° F
MAXIMUM OPERATING PRESSURE
400 PSI
PRESSURE DROP
Less than 1 PSI at 4 ft/sec, decreasing at lower velocities
POWER SUPPLY REQUIREMENTS
Non-display version
20-26.5V ac/dc, 50/60 Hz, 5 VA or 60 mA DC
PULSE OUTPUT and ANALOG OUTPUT
Analog output: 4-20 mA (non-isolated)
Scalable pulse output:
Isolated solid state dry contact
Contact rating: 50 mA, 30V dc
Contact duration: 1000ms
APPROVALS
FCC: Part 15, Subpart B
CE
Conforms to ANSI/NSF 61 & 372 (certication pending)
*Specications subject to change without notice

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 7
1.4 WORKING ENVIRONMENT
The blind version of the F-4600 was designed for indoor or outdoor installation and use in
residential, commercial and light industrial environments that are free of corrosive liquids and
fumes, temperature extremes and excess vibration. Avoid installing the meter in direct sunlight.
The operating ambient air temperature range is -13° F to 131° F. Electrical power should be
relatively clean, free of excess high frequency noise and large voltage transients.
1.5 WARRANTY & SERIAL NUMBER
Warranty
ONICON’s 2-year “No-fault” warranty reduces start-up costs by extending coverage for
incidental damage during installation. Certain exclusions apply. Please refer to ONICON’s
Conditions of Sale (Appendix page A-2) for details.
Serial Number
The serial number of your F-4600 is located on the side of the enclosure. The serial number
is a unique identier for the product. Please have this number available when contacting
ONICON for assistance.
SECTION 2.0: UNPACKING
The F-4600 is generally shipped in one package unless optional hardware or equipment is ordered.
Notify the freight carrier and ONICON if any items are damaged in transit.
2.1 CHECKING THAT YOU HAVE RECEIVED EVERYTHING
The following items have been provided with your F-4600 Flow Meter:
(2) Line size process connection meter couplings* with male NPT threads and sealing gas-
kets (shipped attached to meter)
(1) F-4600 Meter Installation and Operation Guide
(1) F-4600 Meter Certicate of Calibration
Please notify ONICON if any of these items are missing.
* Note: The 2½” version of the meter is provided with anges.

11451 Belcher Road South, Largo, FL 33773 • USA • Tel [phone] • Fax [phone] • [email protected]
F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 8
SECTION 3.0: INSTALLATION
The F-4600 Flow Meter should be installed by experienced plumbers, electricians, and others
with related knowledge and experience in the heating, cooling, and uid metering elds. ONICON
technical support personnel are available via telephone or e-mail to provide technical assistance
before, during and after installation. On-site eld engineering, installation, and service are also
available at an additional cost. The installer should use good trade practices and must adhere to all
applicable state and local building or other codes.
3.1 SITE SELECTION
Careful attention to the site selection for the meter will help the installers with the initial installation,
reduce start-up problems, and make future maintenance easier. For example, do not install the meter
where it will be difcult for personnel to perform periodic maintenance. When selecting a site,
consider the criteria under Section 1.4: WORKING ENVIRONMENT, as well as the information below.
The following limitations apply to the installation of the meter:
• The ow meter must be correctly oriented with respect to the direction of ow in the pipe. Me-
ters installed with reversed ow will not function.
• The maximum operating pressure for the ow meter is 400 psi.
• Do not install the meter in close proximity to strong sources of electromagnetic interference (e.g.
electric motors, VFD’s, uorescent light xtures, etc.)

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 9
A. This is a recommended position for the ow meter.
B. This is a recommended position for the ow meter.
C. Avoid installation locations where air can become trapped in the piping system.
D. This is an acceptable installation location for closed loop pressurized systems.
E. Do not install the meter downstream of modulating valves or partially open valves. Fully
open isolation valves (e.g. ball valves) are OK.
F. Do not install the ow sensor at the inlet of a pump. To prevent cavitation, the minimum
operating pressure at the inlet of the meter must always exceed the pressure drop across
the meter. Refer to Appendix A-1 for calculating pressure the drop at different ow rates.
G. Avoid installing the meter downstream of multiple bends out of plane with each other
where there are less than 10 diameters of straight unobstructed pipe between bends.
A
B
C
D
E & F
G
Flow Direction
Flow Direction
3.2 INSTALLING THE FLOW METER
Before you install the meter, the entire piping system should be ushed and free of debris. Please
refer to the diagrams below when selecting the installation location. Upstream straight unobstructed
pipe requirements vary considerably based on the nature of the upstream obstructions. As a general
rule, ONICON recommends a minimum of 10 diameters of straight unobstructed pipe whenever
possible; keeping in mind that it is always recommended that the meter be located with as much
straight pipe upstream as possible.
STRAIGHT RUN REQUIREMENTS
Upstream Obstruction
Minimum Upstream Straight Run Required (Pipe Diameters)
Meter Size
0.5" - 1.0" 1.25" - 2.5"
Single Elbow 0 0
Expander / Reducer 0 0
Coil, Upstream 3 3
Isolation Valve, 2 Position 3 5
Control Valve 10 15
Notes:
1Straight run is based on use of manufacturer provided couplings
2Avoid the following obstructions where possible: Modulating valves, pump discharge, multiple
elbows out of plane.

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F-4600 Flow Meter Manual 05/16 - 1054-4 / 34405 Page 10
CAUTION
The ow meter body must be correctly oriented with respect to the direction of ow in the pipe.
Meters installed with ow in the reverse direction will not function.
Flow Direction
The sensor port is always on
the downstream end of meter.
Retaining Nut SealCoupling
The ow meter is installed with threaded meter couplings and at sealing gaskets as shown below.
Orient the sensor body by aligning the ow direction arrow with the direction of ow in the pipe.
Orient the meter as shown below. The meter may be installed with upward or downward ow in
vertical pipes in closed loop pressurized systems. Avoid any installation locations where the pipe may
not be completely full.
Preferred Orientation for Horizontal Pipes
Side View Side View
Do not orient meter as shown below
Side View Side View
!
Preferred Orientation for Horizontal Pipes Do not orient meter as shown below
Side View Side View Side View Side View
Meter Sizes ½” - 1”
Meter Sizes 1¼” - 2.5”