Omega Products FL-1004 Installation Manual

FL-1002, FL-1004, FL-1006
PURGE ROTAMETERS

Operator’s Manual:

INSTRUCTION

SHEET

M0369/0201

General Description

The OMEGA® FL-1000 Series Rotameters are low-flow variable
area flow meters molded of high impact polycarbonate. The
single piece molded unit forms he tapered ribbed tube, integral
float stops, and front bezel.

The o-ring sealed metal connector inserts prevent possible
cracking of the meter body by overtightening. The rotatable
connectors also act as line unions to simplify piping.

The FL-1000 Series are equipped with a standard control valve,
integrally mounted at the inlet or outlet of the meter. They are
also available without a valve.

Maximum flow rates range from 0.50 to 100 scfh on air, or 0.1 to
20 gph on water. Refer to Capacities table for exact ranges

available.

Specifications

SCALES

Nominal Length: 37mm
Display: Direct reading for air or water

Connections: 1/8” Female NPT, Horizontal (inlet

and outlet) fully rotatable

Accuracy: Standard accuracy ±10% of full

scale

Repeatability: ±1% of full scale

RATINGS

Rangeability: 10:1

Maximum Operating
Pressure: (100psig)

Operating Temperature (20°to 130°F). Fluid Temperature

below 32°F can cause frosting of
plastic meter body.

Pressure Drop with Valve: FL-1002, FL-1012: 96”

FL-1004, FL-1014: 136”

FL-1006, FL-1016: 191”
The figures represent the pressure drop in inches of water
column across the meter with the float in the maximum flowrate
position.

OPTIONS: 1) Brass end fittings, with valve (add suffix B)

2) 316SS end fitting without valve (add suffix “NV”)

Materials of Construction

Meter Body, Clean-out Plug, Float Stop: FDA approved
polycarbonate

Floats: 316 Stainless Steel (Spherical)
O-rings: Viton
Line Connectors: Brass or Stainless Steel

Valve: Brass or Stainless Steel

Unpacking Instruction

Remove the Packing List and verify that you have received all
equipment. If you have any questions about the shipment,
please call the OMEGA Customer Service Department.

When you receive the shipment, inspect the container and
equipment for any signs of damage. Note any evidence of rough
handling in transit. Immediately report any damage to the
shipping agent.

NOTE

The carrier will not honor any claims unless all shipping
material is saved for their examination. After examining and
removing contents, save packing material and carton in the

event reshipment is necessary.

Dimensions

Installation

The flow meter is shipped completely assembled and tested at
the factory. It should not be necessary to tighten or adjust any
parts when received.

The meter must be mounted in a vertical position with the inlet
(upstream flow line) connected to the bottom connection, and
the outlet (downstream line) connected to the top connection.
Standard connection adapters are horizontal female 1/8” NPT.
Flexible pipe is recommended for use with the meter to avoid
stressing the meter body.

The Rotameters are supplied with a “U” -shaped bracket to
facilitate panel mounting. From the front of the panel, the meter
is inserted into a 15/16 x 33/4” vertical panel cutout. The mounting
bracket is installed from the rear of the panel and secured to the
connector retainer plate with a single screw.

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 both water hammer and
surges, a surge chamber should be installed.

CAPACITIES (Standard Scales)

Model No.

Air

Range

(SCFH)

Model No.

Water

Range
(GPH)

FL-1002
FL-1004
FL-1006

0.5-5.5

2.0-20.
10-100

FL-1012
FL-1014
FL-1016

0.1-1.1

0.5-4.5

2.0-20.

Capacities are at metering conditions of 70 0 F, 121.1 o C and psia (101.3 kPa)

s (standard) designates reference condition of 700F and 14.7 psia

Operation

Caution: Do not operate this instrument in excess of temperature
and pressure ratings or serious injury and /or damage to the
instrument could result.

Maintenance

It is recommended that the user periodically inspect the tube
and float and clean if necessary. Dirt or foreign materials
adhering to the tube and float may cause inaccuracy and
sticking of the float. To clean the meter, remove it from the line

and flush with mild detergent solution or appropriate solvents.
DO NOT use any solvent or cleaning solution which might
attack the meter body.

Replacement Parts

There are no replacement parts available. For users desiring to
stock spare parts, it is recommended a complete unit be kept on
hand as a replacement.

Size

2

4

6

Float

∆P InchesW.C.

(With Valve)

∆P

InchesW .C.

Glass

316 Stainless Steel

316 Stainless Steel

316 Stainless Steel

Glass

Glass

33
96

42 1

136

68

191

1/4

1

3-1/2

8

32

Table 2 Pressure Drop

The figures above represent the pressure drop in inches of water across the
meter with the float in maximum flow rate position.

3

Servicing North America:

USA:

One Omega Drive, Box 4047

ISO 9001 Certified Stamford CT 06907-0047

Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

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

For immediate technical or application assistance:

USA and Canada:

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

Mexico: En Espan˜ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

Servicing Europe:

Benelux:

Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Rude´ arma´dy 1868, 733 01 Karvina´ 8

Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 9, rue Denis Papin, 78190 Trappes

Tel: [phone] FAX: [phone]
Toll Free in France: 0800 4 06342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5EX United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®On-Line Service Internet e-mail

www.omega.com [e-mail]

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

1. Purchase Order 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.

FOR NON-WARRANTY REPAIRS,

consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product, 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 2001 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 the prior written consent of OMEGA ENGINEERING, INC.

WARRANTY / DISCLAIMER

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’s 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 malfunctions, 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 having been 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, EXPRESS 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.

RETURN REQUESTS / INQUIRIES

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.

WARNING

FLOWMETER OPERATION

If the inlet and outlet valves adjacent to the flowmeter are to be closed for any reason, the

flowmeter must be completely drained. Failure to do so may result in thermal expansion of the liquid

which can cause rupture of the meter and possible personal injury.