Omega Products FP-5070 Installation Manual

User’s Guide

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FP-5070 Series Flow Sensors

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Page 2

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.

OMEGA FP-5070 Series Flow Sensors

OMEGA FP-5070 Series Flow Sensors

SAFETY INSTRUCTIONS

1. Do not remove from pressurized lines.

2. Confirm chemical compatibility before use.

3. Do not exceed maximum temperature/pressure specifications.

4. Wear safety goggles or faceshield during installation/service.

5. Do not alter product construction.

6. Failure to follow safety instructions could result in severe personal injury.

1. Description

The FP-5070 series Mini Flow Sensors contain a free-running
rotor which is driven by the fluid flow. Within the given
measurement range, the rotational speed of the rotor is
proportional to the fluid flow rate. Permanent magnets built into
the rotor actuate an electronic switch in the top of the sensor
generating a square-wave output signal proportional to flow rate.
Both opaque and transparent fluids can be measured from 0.2 to

20.0 centistokes.

Wetted sensor parts are constructed of PVDF and FPM, making
the sensor suitable for use with most process fluids, including
most acids, bases, light oils, and solvents.

2. Specifications

General

Flow Range:

• -2V sensor: 400 to 2800 mL/m (0.105 to 0.740 U.S. gpm)

• -3V sensor: 700 to 4200 mL/m (0.185 to 1.123 U.S. gpm)

• -4V sensor: 1300 to 6000 mL/m (0.343 to 1.585 U.S. gpm)

• -6V sensor: 3200 to 12000 mL/m (0.845 to 3.170 U.S. gpm)
Linearity: ±0.25% of full range
Repeatability: ±0.25% of full range
Viscosity range: 0.2 to 20.0 centistokes
Pipe connections: G 1/4 in. ports, 1/4 in. NPT (male) pipe adapters

(2 included)
Cable length: Std: 7.6m (25 ft.), max.: 300 m (1000 ft.)
Cable type: 2-conductor shielded, twisted-pair, 22 AWG
Shipping Weight: 0.4 kg (0.8 lb.)

Pressure Drop:

Pressure Drop Across Sensor vs. Flow Rate

PSI

BAR

1.50

21.76

18.13

14.50

10.88

7.25

3.63

1.25

1.00

0.75

0.50

0.25

02040607080

Flow rate (%) of full scale

-2V

-3V

-4V

-6V

Cable plug

Upper body with
electronic switch

25 ft. cable

FLOW

1

/4 in.

G
port threads

Lower body with

built-in rotor

Pipe fitting adapter

1

/4 x 1/4 in. NPT

G
(2 included)

WARNING!

Polar organic solvents (i.e., ketones and chlorinated
hydrocarbons) and aromatic hydrocarbons are not
compatible with this sensor.

Wetted Materials

• Housing: PVDF

• Flow insert: PTFE

• Quad ring seal: FPM

• Rotor: PVDF

• Pipe thread adapters: PVDF

• Suitable for clean fluids only

Electrical

Power: 5 to 24 VDC @ 10 mA max.
Output type: Open-collector transistor, 10 mA max.

sink

Max. pressure/temperature:

• 5.5 bar @ -30°C (80 psi @ -22°F)

• 5.5 bar @ 24°C (80 psi @ 75°F)

•3 bar @ 120°C (45 psi @ 248°F)

psibar
100

6.9

80

5.5

60

4.

1

40

2.8

20

1.4

0

-40 0 40 80 120 160 200 240 280

-40 -18 4 27 49 71 93 116 138

°F

°C

OMEGA FP-5070 Series Flow Sensors

Page 3

Dimensions:

95 mm (3.74 in.)

FLOW

Mounting tabs (3),
#8 or M4 self-tapping
screws required
(customer supplied)

32.5 mm (1.28 in.)
bolt circle

68 mm (2.7 in.)

65 mm
(2.6 in.)

3. Installation

• The sensor may be installed in any position, although
horizontal flow is recommended (sensor mounted upright). If
the sensor is not installed upright, the linearity error may be
greater in the lower part of the sensor's measurement range.

• Mounting tabs are provided using #8 or M4 self-tapping
screws (customer supplied). See Dimensions illustration for
mounting tab hole pattern specifications.

• Install sensor with the arrow pointing in the direction of flow.

• Always maximize distance between the sensor and pump
source. Never install immediately downstream of valves,

Pipe Fitting

Adapters
(included)

FLOW

FLOW

100-150 mm (4-6 in.)

Mounting

tabs (3)

Compatible pipe/tubing connections (customer supplied):

Female SxT
coupling

Female TxT
coupling

Female TxT

coupling

Installation Hints

• Avoid vibrations and shocks

• Avoid solids in the fluid

• Install a filter or line strainer upstream to protect sensor

Page 4

Hand

tighten

only!

Coupling

Pipe or
tubing

100-150 mm (4-6 in.)

Female TxT
union

Hose
adapter

fittings, etc. For optimum performance, a straight flow run of
at least 100 to 150 mm (4 to 6 in.) should be provided before
and after the sensor.

• Two pipe fitting adapters (included) convert the G 1/4 in.
straight threads to 1/4 in. NPT pipe threads. Hand tighten
only! Apply 1-2 turns of sealing tape to all threaded
connections to prevent leaks.

CAUTION!

Use an adjustable wrench to prevent the fitting adapters
from overtightning while installing mating pipe
connectors. Sensor damage will occur if the ports are
overtightened.

4. Wiring Details

4.1 Cable Extensions

The standard 25 foot sensor cable can be extended to 300 m
(1000 ft.) using 2-conductor shielded twisted-pair cable.

• Always maintain cable shield through cable splice.

• For splice-free cable replacement up to 300 m (1000 ft.), refer
to the sensor plug connection diagram (below) for connection
details.

Sensor Signal Output
(Red wire)

Sensor Power:

5 to 24 VDC

(Black wire)

1

Sensor
ground

2

(Silver wire)

Disregard ground
symbol on connector

Max cable length:

300 m (1000 ft.)

OMEGA FP-5070 Series Flow Sensors

Sensor
Plug (side)

4.2 Instrument Connections

A

C

FP-5072

FLOW

FP-5072

FLOW

OMEGA

FPM-5500/FPM-9020A

Shield

Black
Red

Freq. IN

Freq. IN

Std. Sensor

Iso. Gnd

Sen. Pwr.

Open Collector
Sensor

OMEGA

FPM-9010A

SENSOR

BLK RED SHLD

Black
Red

Shield

12 13 14

B

OPEN

COLLECTOR

SENSOR

STANDARD

SENSOR

D

OMEGA

FP90 Series

Frequency In

Sensor Power

Gnd

Frequency In

FP-5072

FLOW

Red

Black

Shield

Black

Shield

Red

Other Brands

10 kΩ

FP-5072

FLOW

External Power supply

5 to 24

+

Gnd.

Input

-

VDC

Other

instrument

• Pull-up resistor required (10 kΩ recommended). Consult your instrument manual for

• Configure instrument input card for FP-5072 sensor input

 additional information.

5. Calibration

The K-Factors listed below represent the number of pulses the sensor will generate for each measured engineering unit. They are listed
in U.S. gallons, liters, and mL by sensor model.

-------------------------------- K-FACTORS ----------------------------------

Sensor Flow PULSES PER PULSES PER PULSES PER
Model Insert U.S. GAL LITER mL

FP-5072-PV 2 mm 5685 1502 1.502
FP-5073-PV 3 mm 3308 874 0.874
FP-5074-PV 4 mm 2316 612 0.612
FP-5076-PV None 1249 330 0.330

6. Replacement Parts

Upper
body

Cable plug,
#3-2507.080-5

OMEGA FP-5070 Series Flow Sensors

Rotor,
#3-2507.080-2

Flow inserts:
2 mm: #3-2507.081-2
3 mm: #3-2507.081-3
4 mm: #3-2507.081-4

Quad ring seal,
3-2507.080-3

FLOW

Lower body,
FP-5074-PV

Page 5

7. Replacing The Flow Insert

Sensor range can be modified by changing the flow insert. The
sensor must be removed from service and disassembled prior to
installing the new flow insert. See section 2 specifications for flow
range data.

Flow Insert Replacement Procedure:

1. Depressurize system and remove sensor.

2. Rotate the upper sensor body clockwise until it releases from
the lower half, then lift off.

3. Remove rotor and quad ring seal from lower body.

4. Push the flow insert outward using a small screwdriver.

5. Install the new flow insert (small diameter inward) with the
eraser end of a pencil. Apply light pressure until insert seats
against the step in the lower body. Do not force!

6. Install rotor into lower body. Spin rotor with finger and check
for free rotation. If rotor hits flow insert, remove rotor and
push insert back until free rotor rotation is established. Use a
rounded object like a pen or pencil body to adjust flow insert
depth.

7. Install rotor, quad ring, and upper body. Hand tighten only!
Do not overtighten upper body or the lower body assembly
tabs will break.

8. Troubleshooting

8. Reprogram instrument with new K-Factor, see calibration
section 5.

WARNING!

Do not use tools of any kind on the sensor body or port
connections. Hand tighten only! Excessive force will
damage sensor.

Upper body

Assemble

(counterclockwise)

flow

insert

Inlet port

Rotor

FLOW

Lower Body

Disassemble

(clockwise)

Quad ring seal

Assembly
Tabs (3)

Outlet port

Condition Recommendation

Erratic or missing
sensor signal

A) Verify ALL cable and instrument connections (section 4).
B) Verify proper sensor installation (section 3).
C) Remove power from instrument and disconnect sensor inputs. Power up instrument and check across

Black and Shield terminals with a digital voltage meter for 5 VDC.
If 5 VDC is not present, the instrument requires service or may be misconfigured. OMEGA FPM 9010A

controllers require input card configuration for FP-5072 sensor inputs, see instrument manual.
Perform steps A-E
If sensor problems
persist, contact
OMEGA.

D) Verify the FP-5072 paddlewheel is spinning freely by blowing into the flow chamber. If the paddlewheel

dosen’t spin freely, the following conditions may exist:

• The sensor may be dirty or clogged. Disassemble and clean with hot tap water and soft brush (see
section 7).

• The rotor may be hitting the flow insert. Disassemble and adjust flow insert depth (see section 7).

E) Test sensor with flow system active and sensor powered. Use an oscilloscope to check the sensor input

signal across the Red (Signal IN) and Shield terminals. A square wave signal should appear at these
terminals. If no signal is present replace sensor.

9. Ordering Information

Mfr. Part No. Description

FP-5072-PV Mini-Flow Sensor, 2mm insert
FP-5073-PV Mini-Flow Sensor, 3mm insert
FP-5074-PV Mini-Flow Sensor, 4mm insert
FP-5076-PV Mini-Flow Sensor, 6mm inlet, no insert

Page 6

OMEGA FP-5070 Series Flow Sensors

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.

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.

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 2000 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.

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 FP-5070 Series Flow Sensors

Page 7

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