Fuji Electric FSH, FSW Specifications

HYBRID ULTRASONIC FLOWMETER <Duosonics>

(Pulse Doppler method + Transit Time method)

DATA SHEET

This meter is the world’s first non-intrusive type ultrasonic flowmeter utilizing Pulse Doppler method along with Transit Time method. It enables measurement of velocity profile directly resulting in high accuracy. This makes it suitable for undeveloped flow and for short straight pipes. Pulse Doppler method requires reflectors in the liquid and is utilized on opaque liquids while Transit Time method requires ultrasound penetration and is ideal for clean liquids. The new hybrid technology utilizes both methods in a complementary fashion thus enabling a wider range of applications than it is possible now. In addition, thanks to Fuji’s new state-of-the-art algorithm, either method can be automatically switched to accommodate for varying fluid conditions such as concentration of particles and/or air bubbles and flow velocity.

FEATURES

1. Automatic switchover function between Pulse Doppler method utilizing ultrasound reflection and Transit Time method utilizing ultrasound penetration

• Applicable to various kinds of liquids with/without air

bubbles and/or solid particles

• Applicable to liquid flow that changes in nature frequently

or periodically

2. High-accuracy non-intrusive (non-contact) volumetric flow rate measurement of liquid flow in closed pipes.

• Accuracy of 0.5% to 1% (depending on the measuring

mode and pipe size)

• Clamp-on sensor

3. Direct measurement of velocity profile in case of Pulse Doppler method

• High accuracy of 0.5% to 1% (correction coefficient un-

necessary)

• Applicable to undeveloped flow (short straight pipe)

• Applicable to flow hovering in the transitional region be-

tween laminar flow and turbulent flow

4. High speed response: 0.2sec (pulse Doppler method)/

0.5sec (transit time method)

5. Real time monitoring of velocity profile by PC in case of Pulse Doppler method (option)

6. Dual-path option improves performance

SPECIFICATIONS

Operational specifications

System configuration:

The system is composed of one/two detectors (Model: FSW) and one Flow transmitter (Model: FSH), realizing single-path/two-path measurement. Hybrid mode or transit time mode is selectable. In case of hybrid mode, ether Pulse Doppler method or transit time method is automatically selected depending on conditions of measured liquid and magnitude of velocity.

FSH, FSW, FLY

Flow transmitter

(FSH)

Detector

(FSW)

Application: Uniform liquid in which ultrasonic waves can

propagate.

Air bubble quantity: Pulse Doppler method: 0.02 to

15% of volume at 1 m/s Transit time method: 0 to 12% of volume at 1 m/s

Fluid temperature: -40 to +100°C (FSW12), -40 to

80°C (FSW21, FSW40,FSW50)

Type of flow: P u l se Doppler method:

axisymmetric flow in a filled pipe. Transit time method: well-developed turbulent or laminar flow in a filled pipe.

Applicable flow pipe:

Material: Plastics (PVC, FRP, etc.) or

Metals (carbon steel, SS, copper, aluminum, etc.)

Pipe size: 50 to 1000 mm (inside diameter)

Liner: Tar epoxy, mortar, etc. Straight pipe length: Typically 10D for upstream and

5D for downstream. Refer to JEMIS-032 in detail. (Note) JEMIS: Japan Electric

Measuring Instruments Manufactures' Associations Standard

Velocity: Hybrid mode: 0 to ±0.3 --- ±Maximum Velocity

(depending on pipe diameter) (Note) Maximum measurement range in Hybrid mode (see page 4)

Transit time mode: 0 to ±0.3 --- ±32 m/s

Power supply:

100 to 240 Vac+10%/-15%, 50/60Hz or 20 to 30 Vdc

EDS6-132a

Date

Aug. 31, 2005

FSH, FSW, FLY

Signal cable: Single-path system :

A pair of RF co-axial cables for ultrasound signals and a three-core shield cable for temperature sensor, Two-path system: Two pairs of RF co-axial cables for ultrasound signals and a three-core shield cable for temperature sensor, Maximum cable length: 150m

Temperature range : 80°C

Environment: Non-explosive environment without direct

sunlight, corrosive gas and heat radiation

Ambient temperature:

-10 to +50°C for flow transmitter,

-20 to +80°C for detector

Ambient humidity:

95%RH or less for flow transmitter, 100%RH or less for detector

Grounding: Class D (less than 100 ohm) Arrester: Surge absorbers for outputs and power supply

incorporated as standard

Performance specifications

Accuracy :

Pulse Doppler method :

Pipe size (inside diameter)

ø50mm to ø1000mm

(Detector FSWS12)

ø100mm to ø1000mm

(Detector: FSWS21,40,50)

Velocity

1.5 m/s to

Max. Velocity (Note)

0 m/s to 1.5 m/s

1 m/s to

Max. Velocity (Note)

0 m/s to 1 m/s

Accuracy

±0.5% of rate

±0.0075m/s ±1.0% of rate

±0.01m/s

(Note) Maximum velocity is depend on a pipe diamecer.

See Maximum measurement range in Hybrid mode (page 4).

Transit time method :

Pipe size (inside diameter)

ø50mm to ø300mm

or less

ø300mm to ø1000mm

Velocity

2 to 32 m/s

0 to 2 m/s

1 to 32 m/s

0 to 1 m/s

Accuracy

±1.0% of rate ±0.02m/s ±1.0% of rate ±0.01m/s

Response time:

Pulse Doppler method: 0.2sec

(depending on pipe diameter and measuring condition)

Transit time method: 0.5sec

Power consumption:

20W or less

Short-term thermal stability:

140°C, 30 min (FSWS12), 100°C, 30 min (FSWS21, FSWS40, FSWS50)

Functional specifications

Analog output: 4 to 20 mAdc (1 point)

Max. load resistance: 1k ohm

Digital output:+total, -total, alarm, acting range, flow switch

or total switch -- arbitrarily selectable

Mechanical relay contact:

1 point with socket (replaceable) Normally closed/open selectable Capacity:240 Vac/30 Vdc, 1 A Total pulse: less than 1 p/s

(Pulse width: 50, 100 or 200 ms selectable)

Transistor open collector: 2 points

Capacity: 30 Vdc, 0.1 A

Normally off/on selectable

Total pulse: less than 1000 p/s

(Pulse width: 0.5, 1, 2, 5, 10, 20, 50, 100 or 200 ms selectable)

Communication interface:

RS-232C equivalent / RS-485 (selectable) Number of connectable units: one (RS-232C)/

up to 31 (RS-485) Baud rate: 9600/19200/38400 bps selectable Parity: none/odd/even selectable Stop bit: 1 or 2 bits selectable Distance: up to 15 m (RS-232C)/up to 1k m

(RS-485)

Data: velocity, flow rate, +total, -total, status

(standard), velocity profile (option)

Display device:

Graphic LCD (number of pixels: 240x64) with back light,

Display language:

Japanese, English, French, German or Spanish selectable

Velocity/Flow rate display:

Display of velocity and/or flow rate with flow direction Data: up to 10 digits (decimal point to be

counted as 1 digit)

Unit: Metric/English system selectable

Metric system English system

Velocity m/s ft/s

Flow rate

L/s, L/min, L/h, L/d, kL/h, ML/d, m

/min, m3/h, m3/d,

/d, Mm3/d, BBL/s,

/s,

BBL/min, BBL/h, kBBL/d, MBBL/d

/s, ft3/min, ft3/h,

Mft

/d, gal/s, gal/min, gal/h, Mgal/d, BBL/s, BBL/min, BBL/h, BBL/d, kBBL/d, MBBL/d

Note: “gal” means US gal.

Total display: Display of forward or reverse total

Data: up to 10 digits (decimal point to be

counted as 1 digit)

Unit: Metric/English system selectable

Metric system English system

Total

mL, L, m3, km3, Mm3, mBBL, BBL, kBBL

, kft3, Mft3, gal, kgal, mBBL, BBL, kBBL, ACRf

Configuration:

Fully configurable on keyboard by menu-driven software

Zero adjustment:

Set zero/Clear available. (transit time method)

Damping: 0 to 100s (every 0.1s) configurable for analog

output and display

Low flow cut off:

0 to 5 m/s configurable

Alarm: Hardware fault/process fault can be tied to

digital output

Burnout: Analog output: Hold/Upper limit/Lower limit/

Zero/Not-used selectable Total: Hold/Count selectable Timer: 0 to 900s (every 1s) configurable

Bi-directional range:

Forward and reverse ranges configurable independently Hysteresis: 0 to 20% of working range

configurable

Working range applicable to digital output

Auto-2 ranges:

Forward 2 ranges configurable independently Hysteresis: 0 to 20% of working range

configurable

Working range applicable to digital output

Flow switch: Lower and upper switching points

configurable independently Acting point applicable to digital output

Total switch: +total switching point configurable

Acting point applicable to digital output

Physical specifications

Enclosure protection:

Flow Transmitter: IP67, Detector: IP67

Mounting: Flow Transmitter: wall mount

Detector: clamped on pipe surface

Acoustic coupler:

Silicon compound (RTV)

Material: Flow Transmitter: aluminum alloy

Detector: PBT for housing, aluminum alloy for

frame and SS for fastening belt

Sensor cable(FLY6):

RF coaxial cable (double shielded) External sheath: Black flame-resistant vinyl External diameter: About 7.3 mm Terminal treatment: Water-resistant BNC con-

nector (detector side), M3.5 amplifier terminal (converter side)

Weight: About 90 g/m

Temperature sensor cable(FLY7):

3-core shield cable External sheath: Gray flame-resistant vinyl External diameter: About 6.9 mm Terminal treatment: Round waterproof con-

nector (detector side), M3.5 amplifier terminal (converter side)

Weight: About 56 g/m

Dimensions: Flow Transmitter : H240 x W247 x D134 mm

Detector: H70 x W57 x L360 mm (FSWS12)

H72 x W57 x L540 mm (FSWS21) H90 x W85 x L640 mm (FSWS40) H82 x W71 x L258 mm (FSWS50)

Mass: Flow Transmitter: 5 kg

Detector: 1.7 kg (FSWS12), 1.9 kg (FSWS21),

5 kg (FSWS40), 1.5 kg (FSWS50)

Conditions on straight pipe

( D : Inside diameter of pipe)

Classification Upstream side Downstream side

L≧5D

L≧10D

90° bend

Tee

Diffuser

Reducer

10D or more

10D

10D or more

0.5D

≧1.5D

Detector

L≧50D

L≧30D

L≧10D

L≧30D

L≧10D

L≧5D

L≧10D

Various Valve

In case that flow control valve exists on upstream side.

Pump

(Note) The source : JEMIS-032

Stop valve

Check valve

In case that flow control valve exists on downstream side.

L≧50D

FSH, FSW, FLY

• Ultrasound pulses are transmitted into a liquid, and flow velocity profile is found and the flow rate is measured by using the characteristics that Doppler frequency of the echo from reflectors such as air bubbles and particles in the liquid changes according to flow velocity.

Sensor 1

Air bubbles

Reflection

Flow velocity

Profile 2

Piping wall Center Piping wall

Flow velocity Profile 1

• Ultrasound pulses are propagated slanted both from the upstream and downstream, and flow rate is measured by detecting the time difference generated with the flow.

Sensor 1

Flow

Sensor 2

Block diagramMeasurement principle

(1) Single path system (Z method)

Cable

Detector

Flow Transmitter

(2) 2-path system (Z method)

Cable

Detector

Power supply

4 to 20mA DC

Flow Transmitter

Contact (Up to 3 points are allowed.)

Temperature sensor cable

4 to 20mA DC

Contact

(Up to 3 points are allowed.)

Temperature sensor cable

Flow

Sensor 2

Transmission

Sensor 2

Sensor 1

Time difference ∆T

Receiving

Maximum measurement range in hybrid mode

When stainless steel is selected as pipe material, nominal wall thickness is Sch20s, and the fluid is water

Caliber

1000A 1.76

FSWS12 50A 65A 4.99 80A 4.40 90A 3.92

100A 3.45 6.95 125A 5.86 150A 5.04 200A 3.96 7.59 250A 6.26 300A 5.32 350A 4.82 400A 4.25 450A 3.80 500A 3.54 3.54 550A 3.14 600A 2.89 650A 2.69 700A 2.50 750A 2.34 800A 2.19 850A 2.07 900A 1.95

FSWS21 FSWS40 FSWS50

6.04

Unit: m/s

FSWS12

FSWS21 FSWS40 FSWS50

48.5

67.8

81.8

97.1

110.2 222.0

279.2

343.2

462.8 887 1,146 1,404 1,572 1,831 2,091 2,393 2,393

Unit: m

2,587 2,850 3,067 3,325 3,590 3,839 4,112 4,357 4,852

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