Omega Products FL-X5 Installation Manual

®

FL-X SERIES

FL-W Series

Water Meter Monitors

Water Meter Monitors

INSTRUCTION

SHEET

M0374/1098

INSTRUCTION

INTRODUCTION

The OMEGA FL-X Series Flowrate Indicators utilize fluid movement to actuate
a swinging vane, which drives the scale pointer attached to the vane shaft,

SHEET

and triggers the signal switch. These flowmeters are ideal for use on fresh or
sea water, deionized water, steam condensate, and a variety of organic and
inorganic liquids. The corrosion-resistant construction includes no breakable
tubes and a display that is unaffected by the opacity of the fluid.

SPECIFICATIONS

ACCURACY: + 5% full scale.
REPEATABILITY: + 1% of reading.
PRESSURE DROP: 2.2 psi, average
SIGNAL SWITCH: 3-wire SPDT. Rated 15 A @ 125 VAC, CSA/CE Rated
MAX. PRESSURE: 200 psig at 200 ˚F
HOUSING MATERIAL: PoIysulfone
INTERNAL WETTED PARTS: 316SS
SEALS: Viton
CONNECTIONS: 3/4" NPT, female, plastic
WEIGHT: 1 lb. 12 oz.

Flow Range Readout

Model No. (GPM Water) Increments

FL-X2 0-2 .5

FL-X3 0-3 1
FL-X4 0-4 1
FL-X5 0-5 1
FL-X6 0-6 1
FL-X7 0-7 1

INSTALLATION

This is an in-line device. To install, place wrench on fitting only, not meter
housing, to prevent cracking housing and/or fitting. Thread your piping into
the NPT ports, with flow going into the port marked “IN”. Mounting can be in
any position. See dimension diagram.

RECOMMENDED INSTALLATION PRACTICES

Water hammer and surges can be damaging to any flowmeter and must
always be avoided. Water hammer occurs when a liquid flow is sud­denly stopped as with quick closing and solenoid operated valves. Surges
occur when flow is suddenly begun, as when a pump is turned on at full
power or a valve is quickly opened. Liquid surges are particularly dam­aging to flowmeters if the pipe is originally empty. To avoid damaging
surges, fluid lines should remain full (if possible) and pumps should be
brought up to power slowly and valves opened slowly. In addition, to
avoid both water hammer and surges, a surge chamber should be in-

stalled.

ADAPTER

FITTING

DIMENSION DIAGRAM

M0373/1097

6-1/2
3-1/2

3-5/16

5-7/8

4-3/8

2-5/8

ELECTRICAL
CONNECTION
3/4 NPT

4-1/2

6-1/2

5°

SWING

RADIUS

CONNECTING THE SWITCH

To connect the switch, refer to the switch diagram.

NC

C

NO

3-Wire SPDT

SWITCH DIAGRAM

F

INCREASING

THEORY OF OPERATION

2

1

3

C

4

A

B

D

G

E

Fluid enters at A, passes around the semi-circular swinging vane B, and exits
at outlet C. The vane resists the fluid passage because of the constant-torque
spring D. As the vane is pushed farther down, the passage E gets larger to
accommodate the larger flow at no increase in pressure drop. The pointer F is
mounted on the vane shaft, as is an adjustable cam G, to trigger an electric
switch H.

0

F

H

SETTING THE SWITCH POINT

The cam that actuates the switch is located on the dial assembly. The position
of the cam dictates the switch point, i.e., the flow rate at which the cam throws
the switch. (Usually, the switch point is initially set at OMEGA.) To set or reset
the switch point, proceed as follows:
Warning: Shut off the electric power to the control box before opening it.

1. Remove the nameplate, window, and gasket from the control box.

2. The cam that actuates the switch is located just under the pointer. The
position of the cam dictates the flow rate at which the cam will trip the
switch.

3. Turn the pointer so that it points at the desired flow rate on the scale.
Against the low spring forces of the small Vane style models you can do this
by grasping the pointer itself (and holding it in position while you adjust the
cam).

4. While holding the pointer in the desired position, depress the cam ring
fully (approx. 1/16 inch) and rotate it until the switch actuates (clicks).
Release your downward pressure and the cam ring will lock at that position.

5. If you can’t hear the switch click, you can determine contact closure with
an ohmmeter connected across the switch terminals. Connect to the
common and normally open or normally close on the switch.

6. To check the setting, direct the pointer again to the desired flow rate,
noting where the switch actuates. Make adjustments as necessary. If the
bowl was removed please place on guide roll pins and firmly tighten, in a X
motion.

7. It’s much easier to set the switch point if you can do it with actual flow
present. Adjust the flow to the desired point where you want a signal to
occur and turn the cam to actuate the switch as outlined above.

8. Replace window, nameplate, and gasket before turning on electric power.

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IN

CHANGING THE SPRING (SMALL VANE STYLE)

Remove all parts attached to the shaft, from the spring to the pointer screw.
These parts will come off as an assembly by loosening the dial screw. The
cam screw may also have to be loosened so that the assembly will slide freely
off the shaft.

Remove the old spring from the assembly and replace. The new spring is
attached to the indicator dial by pressing the bent inside tip of the spring into
the slotted hub. If slot is too tight, run a knife through it.

Slide the assembly back onto the shaft and rotate it counterclockwise until the
outside spring loop engages the roll pin in the control box. (Flow direction can

be determined by noting “IN” and “OUT” marks on ports, looking from front of
unit). Pull the assembly back out slightly so that the spring is not sandwiched
and can move freely. Now rotate the assembly in the same direction until the
dial screw is at 12 o’clock (perpendicular to the top of the control box). This will
automatically bring the unit to its original calibration. Then tighten the dial screw.

PERIODIC MAINTENANCE

Using a valve to vary the flow, observe the pointer tracking the flow rate. If the
flow monitor does not respond properly, it is probably due to foreign material
building up around the swinging vane and hanging it up. The vane can some­times be jogged loose by manipulating the pointer. If it doesn’t free up, remove
the bowl and clean out the flow chamber around the swinging vane with a
knife or brush.

For replacement parts, contact OMEGA Engineering Customer Service De­partment at (203) 359 - 1660.

SWINGING VANE

BOWL

SMALL HOUSING

CONTROL BOX

SHAFT

ROLL
PIN

3 WIRE SPDT SWITCH

SHAFT

SPRING

INDICATOR DIAL

Parts Drawing

SCALE

HEX NUTS

SPRING

O RING

CAM RETAINER

DIAL SCREW

CAM RING

ALLEN SCREWS

POINTER

POINTER SCREW

OMEGAnetSMOn-Line Service Internet e-mail

http://www.omega.com [e-mail]

Servicing North America:

USA:

ISO 9001 Certified

Canada:

One Omega Drive, Box 4047
Stamford, CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

976 Bergar
Laval (Quebec) H7L 5A1
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada:

Mexico and
Latin America:

Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA
Customer Service: 1-800-622-2378 / 1-800-622-BEST
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Tel: (95) 800-TC-OMEGA
En Espan˜ol: [phone] ext: 2203 e-mail: [e-mail]

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FAX: [phone]

Servicing Europe:

Benelux:

Czech Republic:

France:

Germany/Austria:

United Kingdom:

ISO 9002 Certified

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: [phone] FAX: [phone]
Toll Free in Benelux: 06 0993344
e-mail: [e-mail]

Ostravska 767, 733 01 Karvina
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

9, rue Denis Papin, 78190 Trappes
Tel: [phone] FAX: [phone]
Toll Free in France: 05-4-06342
e-mail: [e-mail]

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone] FAX: [phone]
Toll Free in Germany: 0130 11 21 66
e-mail: [e-mail]

25 Swannington Road, P.O. Box 7, Omega Drive,
Broughton Astley, Leicestershire, Irlam, Manchester,
LE9 6TU, England M44 5EX, England
Tel: [phone] Tel: [phone]
FAX: [phone] FAX: [phone]

Toll Free in England: 0800-488-488

e-mail: [e-mail]

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace
period to the normal one (1) year product warranty to cover handling and shipping time. This
ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or written
request. Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at
no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of being damaged as a result of excessive corrosion; or
current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of
OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/ DISCLAIMER language, and additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR W

ARRANTY RETURNS, please have the
following information available BEFORE
contacting OMEGA:

1. P.O. number under which the product was

PURCHASED,

2. Model and serial number of the product under

warranty, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without prior
written consent of OMEGA ENGINEERING, INC.

RETURN REQUESTS / INQUIRIES

FOR NON-WARRANTY REPAIRS,
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. P.O. number to cover the COST
of the repair,

2. Model and serial number of product, and

3. Repair instructions and/or specific problems
relative to the product.

consult OMEGA

2

WARRANTY/DISCLAIMER