Omega FTB600B Series User manual

omega.com
e-mail: [email protected]
For latest product manuals:
omegamanual.info
FTB600B Series
Ultra-Low Flow Sensors
Shop online at
User’s Guide

OMEGAnet®On-Line 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.
Benelux:
Postbus 8034, 1180 LA Amstelveen
The Netherlands
Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [email protected]
Czech Republic:
Frystatska 184, 733 01 Karvina
´, Czech Republic
Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [email protected]
France:
11, rue Jacques Cartier, 78280 Guyancourt, France
Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [email protected]
Servicing Europe:
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®
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN®
U.S.A.: ISO 9001 Certified
One Omega Drive, Box 4047
Stamford, CT 06907-0047
Tel: [phone]
FAX: [phone]
e-mail: [email protected]
Servicing North America:
For immediate technical or application assistance:
Mexico:
En Espan
~ol: [phone]-7803
FAX: [phone]
e-mail: [email protected]
[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: ISO 9002 Certified
One Omega Drive
River Bend Technology Centre
Northbank, Irlam
Manchester M44 5BD United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [email protected]
Canada:
976 Bergar
Laval (Quebec) H7L 5A1, Canada
Tel: [phone]
FAX: [phone]
e-mail: [email protected]

TABLE OF
CONTENTS
FTB600B Series
Ultra-Low Flow Sensors
i
Section Page
Section 1 Introduction ...................................................................... 1
A. General Description .................................................... 1
B. Principle of Operation ................................................. 1
C. Material Characteristics of PVDF ............................... 2
Section 2 Operation Parameters ..................................................... 3
A. Temperature ................................................................. 3
B. Flow Ranges .................................................................. 3
C. Recommended Viscosity ............................................. 4
D. Filter Recommendations ............................................. 4
E. Cleaning ......................................................................... 5
F. Bi-directional Flow ....................................................... 5
Section 3 Silicone Treatment .......................................................... 6
Section 4 Infrared Sensor ................................................................. 7
A. Supply Voltage ............................................................. 7
B. Frequency Output ........................................................ 7
C. Frequency Ranges ........................................................ 8
D. Cable Requirements .................................................... 8
Section 5 Installation ...................................................................... 10
Section 6 Specifications ................................................................. 14
Section 7 Pressure Drop Curves ................................................... 15

ii
FTB600B Series
Ultra-Low Flow Sensors
NOTES:

1
1
FTB600B Series
Installation
IMPORTANT: READ INSTRUCTIONS THOROUGHLY BEFORE
INSTALLING FLOW METER
Section 1 - Introduction
A. General Description
The FTB600B Series is an axial paddle wheel turbine type flow meter
based on the pelton wheel principle. This unique patented design
makes the FTB600B Series a very accurate, repeatable, linear device.
Not only is the FTB600B Series precise, but it is also a rugged, trouble-
free flow meter, which can be used in a wide variety of industries
including: medical, pharmaceutical, chemical processing, pulp & paper,
semiconductor, biotech, agriculture etc.
B. Principle of Operation
Fluid flows through the meter, first passing through a helical nozzle,
which causes flow to spiral, rotating in a helical pattern. The spiraling
fluid then impacts on the flat blade rotor causing the rotor to spin. The
rotor is designed to immediately develop a rotation-induced friction
free fluid bearing, thus eliminating any potential bearing wear. An
infrared electro-optical transmitter and receiver is molded into the
body of the meter along with a pair of miniature circuit boards,
providing voltage stabilizers.* This design inherently bleeds off
entrained gas, improving the accuracy of the meter.
* Clear, transparent & translucent fluids; must transmit infrared light.

2
FTB600B Series
Installation
1
C. Material Characteristics of PVDF
(Polyvinylidene Fluoride)
1. Material of construction
Trade name - Kynar
All wetted parts of the FTB600B Series are PVDF, excluding the
O-ring. Wetted parts include any part of the meter that will or could
come in contact with the fluid.
List of wetted parts:
1. Barbed fittings 5. End caps
2. Flow meter body 6. Strainer
3. Rotor 7. Bearings
4. Helical nozzle (Viton O-ring seal)
2. Chemical Composition
Polyvinylidene Fluoride is a fluorpolymer consisting of three basic
materials (carbon, hydrogen and fluorine)
3. Effects of Various Fluids
a . Weak acids - no effects
b. Strong acids - attacked by fuming sulfuric & nitric acids at high
temperature.
c. Weak alkalis - no effects
d. Strong alkalis - no effects
e. Organic solvents - Resistant to most. Slight attack by some.
Imbrittled by some amines, keystone and esters.

3
2
FTB600B Series
Operating Parameters
Section 2. - Operating Parameters
A. Temperature
Since the FTB600B Series has printed circuit boards molded into the
body of the meter it is strongly recommended that 180°F not be
exceeded. Exceeding 180°F can cause irreparable damage to the circuit
boards.
B. Flow Ranges
The FTB600B Series is available in six different sizes, which cover a
flow range from 0.1 to 120 lpm.
Specific flow ranges
FTB601B 0.1 to 2 lpm (0.03 to 0.53 gpm)
FTB602B 0.3 to 9 lpm (0.08 to 2.38 gpm)
FTB603B 0.5 to 15 lpm (0.13 to 3.96 gpm)
FTB604B 1.0 to 30 lpm (0.26 to 7.93 gpm)
FTB605B 2.5 to 75 lpm (0.66 to 19.8 gpm)
FTB606B 4.0 to 120 lpm (1.32 to 32 gpm)
Over range may permanently damage the flow meter.
WARNING

4
FTB600B Series
Operation Parameters
2

5
FTB600B Series
Operating Parameters 2
C. Recommended Viscosity
Range 1-5 cSt (w/o correction)
The effects of changing viscosity on the FTB600B Series are the same as
any other turbine flow meter. It is important to remember that a turbine
meter is a viscosity dependent device, where as the viscosity increases
the linearity of the flow meter will decrease. (Water like viscosities are
ideally suited for use with the FTB600B Series) The FTB600B Series is
factory calibrated with water.
Correction procedure for higher viscosity
For viscosities greater than 5 cSt consult the factory. The FTB600B Series
can be used on fluids greater than 5 cSt. however, the K-factor
(linearity) will change. This requires a recalibration of the FTB600B
Series at the known viscosity to determine the new KFactor.
D. Filter Recommendations
Meter Micron Mesh
FTB601B 35 400
FTB602B 50 300
FTB603B 100 80
FTB604B 100 80
FTB605B 100 80
FTB606B 100 80

6
3
FTB600B Series
Silicone Treatment
Section 3 - Silicone Treatment
Silicone treatment is standard for all types of the FTB600B Series series
electronics.

7
4
FTB600B Series
Infrared Sensors
Section 4 - Infrared Sensor
A. Supply Voltage
24 Vdc. Do not exceed 24 Vdc. Doing so can cause overheating and
eventual failure of all PC boards. Printed circuit boards are non-
repairable.
B. Frequency Output
1. Square wave pulse, unscaled (See Figure 4-1)
2. Output impedance 75 ohms
3. Directly proportional to flow rate
4. Output - dc frequency
5. Offset 0.64 volts
6. Peak voltage = Supply voltage - 1.2 volts
7. Peak to peak voltage Supply voltage - 1.2 volts - 0.64 volts
8. Output signal cycle 66.7% (i.e. at 100 Hz there is a 6 millisecond “on”
time and a 4 millisecond “off” time)
9. TTL/CMOS circuit compatibility. The FTB600B Series has an
operational amplifier output, which has a high input impedance and a
low output impedance.

8
FTB600B Series
Infrared Sensors
4
C. Frequency Ranges for
(non-cartridge models) pulses/l
Model Frequency (Hz) K-Factor
FTB601B 60 to 1200 36,000
FTB602B 40 to 1200 8,000
FTB603B 27 to 800 3,200
FTB604B 20 to 600 1,200
FTB605B 18.75 to 562 450
FTB606B 15 to 450 225
D. Cable Requirements
1. 20 to 22 AWG (American Wire Gauge)
2. 4 conductor-shielded cable.
Avoid influences of strong electromagnetic forces as they
can damage components on the PC boards.
NOTE

9
FTB600B Series
Infrared Sensors 4
Figure 4-1. Output Frequency Waveforms

10
5
FTB600B Series
Installation
Section 5 - Installing the FTB600B Series in the fluid line.
A. Make sure the fluid is compatible with PVDF (polyvinylidene fluoride)
and meets viscosity, pressure and temperature parameters of the
FTB600B Series. The fluid must also meet filtration requirements as
listed in 3D.
B. Install the FTB600B series in the fluid line with the arrow pointing in
the direction of the flow.
C. While installing the FTB600B Series in the fluid line be careful not to
over-torque the end caps (on hose-barbed flowmeters) or other
fittings on the flowmeter. Due to the relatively soft composition of
PVDF the body or threads can be permanently distorted.
D. Attach wires to the readout display with the display and power off.
Not only will this help to avoid a potential shock hazard, but it can
also help prevent an error in hooking the flow meter to an incorrect
115 Vac supply.
E. Connect digital display to power supply and enter scaling factors for
both the rate and total. Follow the manufacturers instructions for
programming the digital display.
F. The FTB600B Series is now ready for use.
G. See Table 5-1 for straight pipe recommendations.

11
FTB600B Series
Installation 5
Figure 5-1. Supply Voltage and Signal Output Connections

12
FTB600B Series
Installation
5
Table 5-1. Piping Table

13
FTB600B Series
Installation 5
Table 5-1. Piping Table Con't.

14
6
FTB600B Series
Specifications
Section 6 - Specifications
Accuracy: ±3% of reading
Repeatability: ±0.1% of reading
Linearity: ±1% of reading
Viscosity Range: 1 to 15 centistokes
Working Pressure: 150 PSIG at 175°F
Wetted Materials: PVDF
Power Supply: 5 to 18 Vdc, 6 to 33 mA
Output Signal: Unscaled square wave
Pressure Drop: See Section 7

15
7
FTB600B Series
Pressure Drop Curves
Section 7 - Pressure Drop Curves
Pressure Drop FTB600B Series Liquid Turbine - Flowmeter FTB601
50
0.50 1.0
Liters/minute
kPa
1.5 2.0
45
40
35
30
25
20
15
10
5
0

16
FTB600B Series
Pressure Drop Curves
7
Pressure Drop FTB600B Series Liquid Turbine - Flowmeter FTB602
250
2.00 4.0
Liters/minute
kPa
8.06.0 10.0
200
150
100
50
0