Omega FTB700, FTB700-T User Manual

PVC

User’s Guide

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Stainless Steel

omega.com

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SM

FTB700 SERIES

Inline Turbine Meters

omega.com [e-mail]

Servicing North America:

U.S.A. Omega Engineering, Inc.
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [e-mail]

For Other Locations Visit omega.com/worldwide

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.

TABLE OF CONTENTS

FTB700-SERIES - INLINE TURBINE METERS

General Information

General Information ...............................................................................................................................................................Page 4

Specications ............................................................................................................................................................................Page 4

Electronic Options Specication ........................................................................................................................................Page 4

Installation, Maintenance, and Repair

Installation..................................................................................................................................................................................Page 5

Connections...............................................................................................................................................................................Page 5

Maintenance and Repair .......................................................................................................................................................Page 5

Replacement Parts ..................................................................................................................................................................Page 6

FTB700 SERIES INSTRUCTIONS

FTB700-T - BLIND ANALOG TRANSMITTER

General Information

General Information ...............................................................................................................................................................Page 7

Specications ............................................................................................................................................................................Page 7

Features .......................................................................................................................................................................................Page 8

Installation

Installation..................................................................................................................................................................................Page 8

Connections...............................................................................................................................................................................Page 8

Settings and Calibration

Setting Frequency ...................................................................................................................................................................Page 9

Setting Averaging Time ........................................................................................................................................................Page 9

Checking Calibration ..............................................................................................................................................................Page 9

Troubleshooting

Problem, Probable Causes, Things to Try.......................................................................................................................Page 10

Page 3 omega.com

GENERAL INFORMATION

FTB700 SERIES INSTRUCTIONS

This unique system of 3" to 8" turbine meters uses just one
moving part, a precision helical rotor. Rotation of the rotor is
electronically detected and processed. The high-quality jewel
bearings and shafts minimize friction while providing long life
in non-lubricating uids. The entire rotor assembly can be easily
removed for eld service without removing the meter from the

pipe.

FTB700 meters can be ordered with various output options. The
basic model comes with pulse output only. An electronic display
is available on the DPF144-P/DPF144-W model to display ow
rate and total (resettable or non-resettable), and provide a
programmable pulse or 4-20 mA output. The controls/displays
can be mounted on the meter or remotely mounted on a wall
or panel up to 2,000 feet away. FTB700 meters are compatible
for use with other remote-mount Omega displays and controls

FTB700 bodies are fabricated from Schedule 80 PVC ttings or

as well.

from stainless steel tubing. The turbine insert on the stainless
steel meters is machined from a stainless steel casting. The PVC
turbine insert is machined from a solid piece of PVC. Turbine
rotors on all models are PVDF.

Specications*

PVC Stainless Steel

Pipe Sizes 3”, 4”, 6” 3”, 4”, 6”, 8”

Materials Meter Body PVC Schedule 80 ttings 304 Stainless steel (316 SS optional)

Turbine Insert PVC CF8 cast stainless

Rotor PVDF PVDF

Shaft Zirconia ceramic Zirconia ceramic

Bearings Sapphire journal, ruby endstone Sapphire journal, ruby endstone

Cable #22 AWG, 2000’ max #22 AWG, 2000’ max

Flanges Optional (See dimensions) 150 lb. drilling

Maximum Pressure 150 psi @ 75° F)

(10 bar @ 24° C) (See chart)

Maximum Temperature 120° F (50° C) (See chart) 200° F (93° C)

Accuracy ± 1% of full scale ± 1% of full scale

Flow Range (GPM) 3” 4” 6” 3” 4” 6” 8”

Minimum 3 6 12 3 6 12 30

Maximum 400 600 1200 400 600 1200 3000

* Specications subject to change. Please consult our web site for current data (omega.com).

200 psi (14 bar)

Electronic Options Specications*

FTB700 FTB700 DPF144-P/DPF144-W

Power 6-36 Vdc 7-30 Vdc 7-30 Vdc, 4mA

Electronic Display DPF143 DPF144

Pulse Out 0-160 pulse/sec. current sinking Pulse scaled and pulse pass through Pulse scaled

Analog Out 4-20 mA Loop

Rate 5-digit autorange 5-digit autorange

Total 8-digit 8-digit

Memory Non-volatile Non-volatile

Response Time

High/Low Alarm Selectable on one output Selectable on one output

Regulatory

Page 4 omega.com

Mark

Mark

(4-20 mA when loop powered)

Mark

10X Dia. 5X Dia.

Straight coupling can
be part of length

FLOW

PVC

INSTALLATION, MAINTENANCE, AND REPAIR

A

FTB700 SERIES INSTRUCTIONS

Installation

PVC Meter

CAUTION: These water meters are not
recommended for installation downstream of
the boiler feedwater pump where installation
fault may expose the meter to boiler pressure
and temperature. Maximum recommended

temperature is 120˚ (PVC) or 200˚ (Metal).

Meter

Size

NOTE: Flange options face­to-face dimension (“A”) is
the same as plain ends.

Dim ADim

B

3” 12” 6.5”

4” 14” 7.0”

6” 18” 8.5”

B

A

Piping Conditions. Installing the meter with 10 diameters
of straight pipe upstream and 5 downstream is

recommended.

Flanges. For stainless steel meters, standard anges
are 150 lb. ANSI drilling. PVC meters can be installed
with optional anges according to pipe manufacturer’s
recommendations. For PVC a bolt torque of 20-30 ft-

Stainless Steel Meter

Meter

Size

3” 12”

4” 14”

6” 18”

8” 20”

Dim A

Maintenance and Repair

Recalibration. If it is necessary to recalibrate the meter for

any reason, please contact Omega.

lb for 3” and 4” anges, and 35-50 ft-lb for 6” anges is

recommended.

Turbine Insert Removal and Installation.
CAUTION: First remove all pressure from the line. Then

Either partial or full-face gaskets can be used. Tighten the
bolts evenly. Use care to prevent a misaligned gasket from
entering the ow stream.

Position. The FTB700 Series are all-position meters,
operable in a vertical or horizontal position, with the
meter insert in any radial position. A horizontal position is
preferred if there is a risk of air becoming trapped due to
constant low ows. Operating the meter in partially-lled
pipe will result in inaccuracies.

remove the screws or bolts that hold the insert in place and
tug gently until the insert comes free. A twisting motion
can help to loosen the O-ring seal. Reverse the procedure
to reinstall, after coating the O-ring with lubricant (plastic
compatible in the PVC model). Do not overtighten.

Rotor and Shaft Replacement. Examine the rotor to
determine if bearings or shaft are damaged or excessively
worn. The rotor should spin smoothly and freely, with
no visible wobble. Back and forth play should be very

Connections

24-36 Vdc (dep on device)

Black

Loop Power Supply

To Other

Control

minor, less than 1/64”. If it is necessary to replace the
rotor or shafts, rst back out both shafts with a small
blade screwdriver. The rotor will come free as soon as the
shaft ends come free of the rotor bearings. Reverse the
procedure to reinstall. Note: Do not overtighten the shaft
screws. Check to be sure that a small amount of free play

4-20 mA Device

Red

Black

Black

White

Red

Power

Sensor

Output

Sensor

Pulse

Output

between the shaft ends and the bearings remains.

Sensor Replacement. This is rarely necessary. However,
certain electrical conditions can damage the sensor. To
replace it, rst remove the electronics module. Disconnect
the sensor leads from the electronics module terminals and
remove the threaded plug over the sensor. Finally, remove

For operating instructions for the various electronic modules,
consult the manual for the specic module, included with the meter
at purchase.

Page 5 omega.com

the sensor by pulling on the sensor leads. A gentle tug
should be sufcient. Reverse the process to replace the
sensor.

Optional

Optional

Flanges

Flanges

Flange
150 lb
drilling

INSTALLATION, MAINTENANCE AND REPAIR

REPLACEMENT PARTS

FTB700 SERIES INSTRUCTIONS

ALL METERS

White
Housing

1 Upper housing/electronics Contact

2 Housing gasket/seal 102025 100411

3 Lower housing Not eld

Housing screw/washer kit

4

(4 each)

Plug, steel (battery units) 100360 100360

5

6 Strain relief kit, small (includes 2) 100364 100364

7 Strain relief kit, large (includes 1)

(externally powered units)

8 Square housing adapter Not eld

9 Pickup retaining screw 100298 100298

10 Pickup 100419 100419

11a Insert, SS N/A 100440

11b Insert, 3” PVC 100438 N/A

11c Insert, 4”-6” PVC 100439 N/A

12 Shaft assembly, ceramic (includes 2) 103312 103312

13 Rotor (PVDF) /bearing assembly 100333 100333

14 O-ring, EPDM 100214 100270

15 Insert screw (4 req’d) 100023 N/A

service
representative

for your

specic model

replaceable

100414 100414

101850 101850

WTP WTS

replaceable

Blue Housing

Contact

service
representative

for your

specic model

Not eld

replaceable

Not eld

replaceable

4

65

1

2

7

3

8

9

10

PVC

11b

11a

12

13

14

11c

12

13

14

15

FLOW

Stainless Steel

PVC

Electronics Module Repair. None of the electronics modules have
replaceable components. Printed circuit boards must be replaced
as complete units. In order to replace an entire electronics module,
loosen the four retaining screws and the unit will lift free from the
insert housing.

Page 6 omega.com

FTB700-T

Load vs. Supply Voltage

Blind Analog Transmitter Instructions

FTB700-T INSTRUCTIONS

The Omega FTB700-T is a blind (non-indicating) 4-20 mA transmitter. It accepts a pulse frequency input from the ow
sensor, and converts this input into a continuous analog output signal. Power for the transmitter is taken from the
current loop itself, so only two wires are required. The digital design makes it possible to span the unit in the eld without
tools. The frequency at which 20 mA is desired is entered on a set of rotary switches, and an internal microcontroller
automatically scales all other values accordingly. An additional benet of the microcontroller is its ability to average
inputs, for smoothing of the output signal. The degree of averaging can be selected in the eld, from 2 to 16 seconds.

For maximum environmental protection, the electronic components are encased in a special semi-exible urethane
potting material. The housing is cast from aluminum and fuse-coated. The clamshell housing is provided with mounting

feet or remote mounting.

The FTB700-T will operate on a relatively wide range of current loop voltages, 24 to 36 Vdc. Lower voltages limit the load
that can be applied to the loop without distortion of the signal. (See Load/Supply chart if there is a question regarding
voltage vs. load.) A built-in power regulator supplies the appropriate power to the ow sensor.

Typical applications for this transmitter are telemetry (or SCADA), distributed control systems, programmable controllers,

data logging, and chart recording.

Specications

Power 24 - 36 Vdc

Temperature 32˚ to 130˚ F (0˚ to 55˚ C )

Input Open collector solid state sensor

Input Averaging 2 - 16 seconds (switch selectable)

Response Time 2 - 60 seconds; 90% of full scale

Frequency Minimum 10 Hz (@20mA)

Output Proportional 4-20 mA

*Specications subject to change. Please consult our web site for current data
(omega.com).

(dependent on input averaging)

Maximum 999.9 Hz

Setting 4 Rotary DIP switches

Loop
Power
(Vdc)

36

34

32

30

28

26

24

700 900 1100 1300

Operating

Region

Load Resistance (Ohms)

1500

Page 7 omega.com

GENERAL INFORMATION/INSTALLATION

,

FTB700-T

Features

Installation

FTB700-T INSTRUCTIONS

Fusion coated cast aluminum housing

Easy to use rotary switches for
frequency setting

Potted for moisture protection

Loop power indicator light

Averaging time switches

4-20 mA adjustment switches

The upper portion of the housing must be removed to
make connections. Use a standard hex wrench (5/32” or 4
mm) to loosen the screws, then remove the upper half. The
connections are made to terminal blocks in the upper half,
which contains the potted electronics.

Connections

0

1

9

2

8

3

7

4

6

5

Frequency

Red

White

Black

+

-

Sensor

S

Consult the FTB700-T Connections diagram before
connecting to the current loop and ow sensor. Be careful
to follow the color coding of the ow sensor wires in order
to establish the correct polarity. Incorrect polarity can
damage the sensor.

0

0

1

9

8

7

6

1

9

2

2

8

3

3

7

4

4

6

5

5

0

9

8

7

6

Power

4-20 mA

1

2

3

4

5

24-36 Vdc

Power Supply

(may be

included in

control unit)

-

+

-

+

FTB700-Series

4mA Adjust

Page 8 omega.com

4-20 mA Device

(e.g. Pump, PLC

Chart Recorder)

Force 4 mA

Force 20 mA

20 mA Adjust

FTB700-T Connection Diagram

FTB700-T INSTRUCTIONS

SETTINGS AND CALIBRATION

WN

LR

4mA Adjust

Power

Sensor

4-20 mA

FTB700-T

Frequency

0

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

0

9

8

7

6

5

4

3

2

1

Setting Frequency

The FTB700-T converts a train of off/on pulses from the
ow sensor into a continuous milliAmp signal that ranges
from 4 mA at zero ow to 20 mA at the desired maximum
ow. The desired maximum is determined by the user and
entered as a frequency as follows:

1. Decide what ow rate should represent the top of
the scale. This is ordinarily the maximum expected
ow, or a value just above it, in gallons per minute.

2. Locate the K-factor of the ow sensor (found on
the meter or tting. The K-factor is the number of
pulses the ow sensor produces per gallon of ow.

3. Calculate frequency, using this formula:

K-Factor x Top Flow (GPM) = Frequency

60

4. Enter the frequency using the four rotary Frequency
switches. Note the decimal point between the third
and fourth switches.

Setting Frequency Example

1. In an installation with an estimated maximum
ow rate of about 150 GPM, a ow rate of 170
GPM is selected as the full-scale maximum, the
ow at which the current loop will register 20

mA.

2. In this example, the K-factor (found on the
meter or tting, or in the manual) is “K =

54.50”.

3. Calculate the frequency as:

54.50 x 170 = 154.42
60

4. Rounding to one decimal point, enter 154.4 on

the rotary switches by turning the rotary switch
pointers to the desired digits.

1 5 4

.

4

Setting Averaging Time

For most applications, this step can be ignored, as the
standard setting will work ne. However, when a particularly
steady output signal is desired, or in large pipe, a larger
averaging period may be desirable. Note however that
the averaging period requires a tradeoff, since a longer
averaging period implies a slower response time. If steady
signal is more important than fast response, increase the
averaging time as desired. See the diagram below for the
switch positions and their corresponding times.

9

2

8

3

7

4

6

5

9

9

2

8

8

3

7

7

4

6

6

5

0

0

0

1

1

Frequency

0

1

5

1

9

2

2

8

3

4

3

7

4

6

5

FTB700-T

Sensor

Switch Position

Seconds L R

2 down down

4 down up

8 up down

16 up up

Checking Calibration

Normally it should not be necessary to check calibration,
since the digital design of this unit virtually eliminates drift.
However, there are two types of calibration check that can
be performed. Look at the diagram below to locate the 4
and 20 mA force switches. To force the 4 mA output, put
its switch in the up position. Check the current output at
the Power terminals, and if necessary trim to 4.00 mA using
the appropriate trimpot. Return the switch to the down
position, and repeat the process with the 20 mA switch.

Power

4-20 mA

UP
DO

Page 9 omega.com

Force 4 mA

Force 20 mA

20 mA Adjust

0

1

9

9

2

8

8

3

7

7

4

6

5

Frequency

FTB700-T

Sensor

S

0

0

0

1

1

9

2

8

3

7

4

6

6

5

1

9

2

2

8

3

3

7

4

4

6

5

5

Power

4-20 mA

TROUBLESHOOTING

Problem Probable Causes Things to try…

FTB700-T INSTRUCTIONS

No analog signal at reading

device

Output stick at 4 mA No frequency input from ow

mA signal does not match ow

rate

Break in current loop Check if loop indicator light is on

Dead power supply Check multimeter voltage on power supply

Reversed polarity Check polarity

sensor

Inadequate voltage Check load vs. supply chart

Wrong frequency setting Review setting procedure

Check ow sensor connections

Check ow sensor polarity

Be sure terminal blocks are rmly plugged in

With ow sensor disconnected, use short wire
to repeatedly short between sensor "S" and "-"
terminals. Output should rise.

Check multimeter voltage on power supply

Page 10 omega.com

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.

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 2016 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,
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.

consult

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

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