Omega FP7001A User guide

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User’s Guide

FP7001A

Paddlewheel Flowsensors

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MADE IN

Servicing North America:

U.S.A.: One Omega Drive, Box 4047

ISO 9001 Certified Stamford, CT 06907-0047

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

Canada: 976 Bergar

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

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

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Engineering Service: 1-800-872-9436/1-800-USA-WHEN

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Mexico: En Espan˜ol: [phone]-7803

e-mail: [email protected]
FAX: [phone]
[email protected]

Servicing Europe:

Czech Republic: Frystatska 184, 733 01 Karvina´, Czech Republic

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

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

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

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

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

OMEGAnet®Online Service Internet e-mail

omega.com [email protected]

It is the policy of OMEGA Engineering, Inc. 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 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, human applications.

SECTION PAGE

SECTION 1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . 1

SECTION 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.2 Important Considerations Before Installation . . . . . . . . . . . . . . . . . 2

2.3 Flowmeter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SECTION 3 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SECTION 4 CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SECTION 5 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table of

Contents

FP7001A PADDLEWHEEL FLOWSENSORS

i

NOTES:

FP7001A PADDLEWHEEL FLOWSENSORS

ii

SECTION 1 GENERAL DESCRIPTION

The FP7001A paddlewheel flow sensor is ideal for economical
monitoring of typical industrial water flows and temperature, from
hard-to-handle corrosive aqueous solutions to high purity fluids. The
FP7001A uses a paddlewheel-like rotor whose motion is converted into
a high-level square wave pulse output by an open collector Hall Effect
sensor. Pulse amplitudes from 5 to 18V are possible, depending on input
power. When powered by the FPW-5, 5 Vdc wall socket converter, the
FP7001A has a TTL level pulse output which can be used with a variety
of pulse input flow indicators, signal conditioners and controllers.

The built-in solid-state temperature sensor provides a 10 mV/°C output
over the measurement range of 2° to 150°C. This analog voltage output
can be used with a process input meter or controller such as OMEGA's
iSeries to measure and control the temperature of the liquid in your flow
application.

A complete flow measurement system consists of the flow sensor, the
installation fitting and a readout device. The FP7001A has
polypropylene, 316SS, and Viton wetted parts. The schedule 40 PVC tee
fittings are supplied with a PVC locking nut, and the galvanized iron
tee fittings are supplied with a brass locking nut to provide a secure
metal to-metal mounting to the threaded brass insert.

SECTION 2 INSTALLATION

2.1 UNPACKING

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 at:

1-800-622-2378 or 203-359-1660. On the web you can find us at:
omega.com e-mail: [email protected]

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.

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 that reshipment is necessary.

NOTE

FP7001A PADDLEWHEEL FLOWSENSORS

1

1

2.2 IMPORTANT CONSIDERATIONS BEFORE INSTALLATION

The FP7001A paddlewheel flowsensor in not explosion­proof, nor is it intrinsically safe. It is not to be used for
flammable or hazardous liquids, nor can it be used in
hazardous areas.

The FP7001A is intended for use with water and other low viscosity
liquids ONLY; it can NOT be used with oils and other viscous
materials. They can be used with non-flammable, non-hazardous
liquids up to 5 centipoise viscosity, but field calibration is
recommended for accurate measurements.

The FP7001A is a bidirectional device; flow in the forward or reverse
direction provides the same pulse output. The FP7001A will only measure
flowrates down to one fps velocity; this corresponds to the following
minimum GPM flowrates:

3

⁄4" pipe = 1.5 GPM; 1" = 3 GPM; 11⁄4 " = 4.5 GPM;

1

1

⁄2" = 6.5 GPM; 2" = 10.5 GPM; 21⁄2" = 15 GPM; 3" = 23 GPM.

It is Important to note that most process water contains dissolved
minerals. If the flowsensor is repeatedly exposed to process water and
then the line is allowed to dry, these dissolved minerals will deposit
onto the FP7001A and will inhibit the low flowrate operation of the
sensor. If this occurs, cleaning of the sensor is recommended.

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 and valves opened slowly. In addition, to avoid both
water hammer and surges, a surge chamber should be installed.

2.3 FLOWMETER INSTALLATION

The FP7001A can be mounted in vertical or horizontal pipe runs;
however, the pipe must be full of liquid for proper readings. Thus, the
sensor should not be mounted in vertical pipe where the liquid flows
down, since the pipe may not always be full in this situation. Refer to
Figures 2-1 and 2-2.

CAUTION

CAUTION

FP7001A PADDLEWHEEL FLOWSENSORS

2

2

FP7001A PADDLEWHEEL FLOWSENSORS

2

3

FLOW

Figure 2-1 Horizontal Mounting Position

FLOW

Figure 2-2 Vertical Mounting Position

The FP7001A should not be mounted at the bottom of the pipe
(the 6 o’clock position) because this is where sediment in the
liquid will tend to accumulate. The best mounting location is
at or near the 12 o’clock position, so long as bubbles are not
present in the liquid. The 3 o’clock and 9 o’clock positions are
also acceptable. In an upward flowing vertical pipe, the
flowsensor can be mounted anywhere around the pipe.

FP7001A PADDLEWHEEL FLOWSENSORS

2

4

As with many flowmeters, the FP7001A requires a fully developed
turbulent flow profile in order to provide accurate readings. To insure
this, a length of straight pipe run before and after the flowmeter is
required. The amount of upstream straight pipe run that is required
depends upon the type of obstruction which is immediately upstream
of the flowsensor. See Table 2-1 for specific requirements. Downstream
of the flowsensor, in all situations, only 5 diameters of straight pipe run
is required, regardless of the downstream obstruction.

TABLE 2-1

Concentric reducer 15 pipe diameters
One elbow 20 pipe diameters
2 elbows, in same plane 25 pipe diameters
2 elbows, in two planes, 40 pipe diameters

or one expansion
Valves, pumps*, same plane at least 50 pipe diameters, prefer

sensor mounted upstream

*Oscillating or reciprocating pumps, which produce flow and pressure
pulses in the flowstream, are not recommended for use with the
FP7001A flowsensor.

If you do not have the proper amount of straight pipe run
available at your desired installation location, it is
recommended to use flow straighteners to decrease the
required straight run.

The paddlewheel must be aligned with the fluid flow; the installation
fitting is supplied with an alignment tab which mates with a flat on the
base of the paddlewheel sensor to insure proper sensor alignment.
When using the PVC installation fitting, it is critical that the cap of the
sensor is threaded onto the mating fitting HAND TIGHT ONLY; use of
pipe wrenches, etc. on the plastic cap can lead to damage to the cap
and/or the installation fitting.

The FP7001A has magnets installed in the rotating paddles; these
magnets will tend to attract rust from the flowing fluid. Thus, it is NOT
recommended to install the FP7001A in pipes which under typical
conditions contain rust, such as in cast iron, black iron, carbon steel and
other iron pipes (galvanized pipe has been treated to resist rust). In
situations where rust can not be avoided, it is recommended to install a
fine magnetic filter at least 50 pipe diameters upstream from the
FP7001A and to periodically shut down the line and remove the sensor
from the installation fitting for cleaning.

NOTE

UPSTREAM STRAIGHT PIPE RUN REQUIRED
OBSTRUCTION UPSTREAM OF PADDLEWHEEL SENSOR

FP7001A PADDLEWHEEL FLOWSENSORS

2

5

2.4 WIRING

To insure proper hook-up to your indicating device, the
paddles of the FP7001A can be spun in the open air by
blowing onto them before the sensor is installed into the
installation fitting.

This is particularly important where the pipeline can not be
conveniently shut down and the sensor removed after
installation.

The FP7001A has the following connections:

FLOW SENSOR CONNECTIONS

BLACK GROUND (for both pulse output and for DC power input)

RED 5-18 Vdc (power input)

WHITE FREQUENCY SIGNAL OUTPUT (high)

GREEN No Connection

TEMPERATURE SENSOR CONNECTIONS

BLUE 5-18 Vdc

ORANGE OUT (10 mV/°C)

BROWN GND

For systems without an internal pull-up resistor (such as the DPF70
series panel meter), a nominal 10,000Ω,

1

⁄4 watt resistor must be installed
between the red and white wires. If 5 Vdc power is supplied, the
output signal will be TTL level, which is compatible with a wide
variety of computer interface equipment that accepts TTL level pulse
input.

Up to 300 feet of additional wire can be spliced onto the sensor wires in
the field.

SECTION 3 MAINTENANCE

Except for intermittent removal of the sensor from the line for cleaning,
there is no routine maintenance for the FP7001A flowsensor.

SECTION 4 CALIBRATION

The K-factor, or pulses per gallon output of your FP7001A sensor varies
with the FP7001A installation fitting which was purchases with it. The
K-factor is labeled on the fitting.

NOTE

FP7001A PADDLEWHEEL FLOWSENSORS

5

6

SECTION 5 SPECIFICATIONS (SUBJECT TO CHANGE)

Flow:

Accuracy: ±2% of full scale

Repeatability: ±1% of full scale

Power: 5 to 18 Vdc @ 10 mA maximum

Wetted polypropylene body (PVDF optional), PVDF
Materials: paddle, Viton 0-ring, 316SS shaft. Galvanized
FP7001A sensor: iron tee includes brass insert and and locking nut.

PVC tee has PVC insert and locking nut.

Maximum
Recommended
Fluid Viscosity: 5 centipolse

Fluid Do not exceed the maximum ratings of your piping.
Temperature/ Depending on the material of the fitting the
Pressure operating temperature/pressure may be limited by
Range: your piping, and not by the by the sensor. For all

PVC tee fittings, do not exceed 150 PSIG @ 80°F (27°C),
100 PSIG @ 100°F (38°C), 60 PSIG @ 120°F (49°C), 30
PSIG @ 140°F (60°C), due to the insert in the tee.
FP7000 sensor: 32° to 80°F (0° to 26°C) up to 150 PSIG;
max pressure decreases 1.1 PSIG per each 1°F about
80°F for a max. temperature of 200°F at 18 PSIG max.

Temperature Sensor Specifications:

Range: 2 to 150°C (36 to 302°F)

Accuracy:

±1°C

Output: 10 mV/°C

Power: 5-18 Vdc

SENSOR

FP7001A Polypropylene body/316SS shaft

INSTALLATION FITTINGS (includes locking nut)

FP7007 FP7007-GI

3

⁄4"2-30
FP7010 FP7010-GI 1" 3-50
FP7012 FP7012-GI 11⁄4"5-90
FP7015 FP7015-GI 11⁄2" 7-125
FP7020 FP7020-GI 2" 11-205
FP7025 FP7025-GI 21⁄2" 15-285
FP7030 FP7030-GI 3" 25-460
Other fitting materials may be available. Consult the Flow Department at

OMEGA.

PVC, SCHED. 40 GALVANIZED IRON PIPE RANGE
(PART NUMBER) (PART NUMBER) SIZE (GPM)

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 in which wear is not warranted, include but are 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 the company 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.

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.

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 2008 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.

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