Fuji Electric FSV Ultrasonic Flow Meter

The Fuji Electric FSV ultrasonic flow meter is the latest generation of top performance ultrasonic liquid flow meters using transit time technology. It is particularly efficient in applications where high accuracy is required and the flow meter needs to be installed without shutting down the process. It is the ideal option for measuring flow rates of relatively clean, homogeneous liquids in closed, filled pipes.

The FSV uses advanced digital signal processing technology to provide a compact, lightweight solution with accuracies that are better than ±1% of flow rate with minimal influence by the pressure or temperature of the measured fluid. It offers best-in-class anti-bubble performance, which allows for precision readings with air bubble content as high as 12% volume at 3ft/s velocity.

The durable construction makes it perfect for installation in internal and external environments where IP66 (NEMA 4X) protection is required and it is 2/3 the size of its predecessor, the Time Delta-S.

Configuration is easy and intuitive via push buttons on the front panel. Alternatively, free PC compatible software is available, allowing multiple configurations to be stored and downloaded from a PC to the meter. Real-time trending and data logging as well as diagnostics can be performed with the loader software. The software also includes a sensor spacing calculation tool. A selection of outputs which include 4-20mA, transistor outputs, and RS485 (Modbus) are available for when flow rates and totals need to be transmitted.

The FSV requires clamp-on sensors. These sensors clamp to the outside of pipes and cover pipe diameters from 13 to 6000mm (0.5 to 235 inches) at liquid temperatures from -40 to 200°C (-40 to 390°F). The system requires a straight pipe run of 10x and 5x pipe diameters upstream and downstream respectively.

Transducer Options

FSSD1 Transducer	12.6 inch rail for 0.5 to 4 inch pipes, -40 to 212°F, 2MHz, includes mounting straps and silicone grease.
FSSC Transducer	21.26 inch rail for 2 to 48 inch pipes, -40 to 248°F, 1MHz, includes mounting straps and silicone grease.
FSSE Transducer	8 to 235 inch pipes, -40 to 175°F, 0.5MHz, includes 4in BNC cable for connecting to Portaflow-C.
FSSH Transducer	19 inch rail for 2 to 16 inch pipes, -40 to 390°F, 2MHz, includes mounting straps and silicone grease.

Operational specifications

System configuration:

Single-path system of a flow transmitter
(Model FSV) and a detector (Model FSS)

Applicable detector:

FSSA (2MHz), FSSC (1MHz)

Applicable fluid:

Homogenous liquid where the ultrasonic signal can be transmitted
Bubble quantity: 0 to 12vol% (for pipe size 50A, water, velocity 1m/s)
Fluid turbidity: 10000mg/L max.
Type of flow: Fully-developed turbulent or laminar flow in a full-filled pipe

Flow velocity range:

0 to ±0.3 ... ±32m/s

Power supply: 100 to 240V AC +10%/-15%, 50/60Hz; or 20 to 30V DC

Signal cable (between detector and converter):

Coaxial cable (150m max.) applicable up
to 300m depending on the condition.
Heat resistance: 80°C

Installation environment:

Non-explosive area without direct sunlight,
corrosive gas and heat radiation.

Ambient temperature:

Flow transmitter: -20 to +55°C
Detector: -20 to +60°C

Ambient humidity:

Flow transmitter: 95%RH max.
Detector: 90%RH max.

Grounding: Class D (100 Ω)

Arrester: Provided as standard at power supply

Applicable piping and fluid temperature: <table 1>

Detector	Pipe size (Inner diameter) ø mm	Applicable pipe material (Note1)	How to mount	Flued temperatur range (°C) (Note2, 3)
FSSA	25 to 50	Plastic (PVC, Others)	V method	-20 to +100
	50 to 225	Plastic (PVC, Others) Metal pipe (Stainless steel, Carbon steel, Copper, Aluminum, Others)
FSSC	50 to 600		V method	-40 to +120
	200 to 1200		Z method

Note1) Please select the FSSC type if following condition.
• When pipe material is PP or PVDF, limit of pipe wall thickness is 15mm or more for PP, 9mm or more for PVDF
• When pipe material is hard to penetrate the ultrasonic wave such as cast-iron pipe, lining pipe and old carbon steel pipe etc..,
• Llining material is tar epoxy, mortar and rubber etc..
• In case lining is removed from the pipe, Measurement can not be conducted
Note2) When silicon grease is used as acoustic coupler, Fluid temperature limit is 0 to 60°C no matter what detector is selected.
Note3) Heat-resistant shock temperature: for 30 minutes at 150°C
Note4) Please refer to the item 9 for the specification of the special detector (for small diameter pipe,large diameter pipe and high temperature)
Note5) For pipes with a diameter of 300 mm or larger, we recommend to use FSSE and mount it by Z method.

Performance specifications

Rated accuracy: <table 2>
Detector Type	Pipe size (diameter) mm	Flow velocity (m/s)	Accuracy
			Plastic pipe	Metal pipe
FSSA	ø25 to ø50	2 to 32	±2.0% of rate	–
		0 to 2	±0.04m/s	–
	ø50 to ø225	2 to 32	±1.0% of rate	±2.0% of rate
		0 to 2	±0.02m/s	±0.04m/s
FSSC	ø50 to ø200	2 to 32	±1.5% of rate
		0 to 2	±0.03m/s
	ø200 to ø1200	2 to 32	±1.0% of rate
		0 to 2	±0.02m/s

Note1) Please refer to the item 9 for the specification of the special detector (for small diameter pipe, large diameter pipe and high temperature)

Response time:	1s (standard mode) 0.2s as selected (quick response mode)
Power consumption:	15VA max. (AC power supply) 6W max. (DC power supply)

Functional specifications

Analog signal:	4 to 20mA DC (1 point) Load resistance: 600Ω max.
Digital output:	Forward total, reverse total, alarm, acting range, flow switch, total switch assignable arbitrarily Transistor contact (isolated, open collector) • Outputs: 2 points • Normal: ON/OFF selectable • Contact capacity: 30V DC, 50mA • Output frequency: 1000P/s max. (pulse width: 5, 10, 50, 100, 200, 500, 1000ms)
Serial communication (option):	RS-485 (MODBUS), isolated, arrester incorporated Connectable quantity: 31 units Baud rate: 9600, 19200, 38400bps Parity: None/Odd/Even selectable Stop bits: 1 or 2 bits selectable Cable length: 1km max. Data: Flow velocity, flow rate, forward total, reverse total, status, etc.
Display device:	2-color LED (Normal: green, Extraordinary: red) LCD with 2 lines of 16 characters and back light
Indication language:	Japanese (Katakana)/English/French/ German/Spanish (changeable)
Flow velocity/flow rate indication:	Instantaneous flow velocity, instantaneous flow rate indication (minus indication for reverse flow) Numerals: 8 digits (decimal point is counted as 1 digit) Unit: Metric/Inch system selectable

	Metric system	Inch system
Velocity	m/s	ft/s
Flow rate	L/s, L/min, L/h, L/d, kL/d, ML/d, m3/s, m3/min, m3/d, km3/d, Mm3/d, BBL/s, BBL/min, BBL/h, BBL/d, kBBL/d, MBBL/d	gal/s, gal/min, gal/h, gal/d, kgal/d, Mgal/d, ft3/s, ft3/ min, ft3/d, Kft3/d, Mft3/d, BBL/s, BBL/min, BBL/h, BBL/d, kBBL/d, MBBL/d

Note: The ”gal” means USgal.

Total indication: Forward or reverse total value indication
(negative indication for reverse direction)
Numerals: 8 digits (decimal point is counted as 1 digit)
Unit: Metric/Inch system selectable

	Metric system	Inch system
Total	mL, L, m3, km3, Mm3, mBBL, BBL, KBBL	gal, kgal, ft3, kft3, Mft3, mBBL, BBL, kBBL, ACRE-ft

Configuration:	Fully configurable from the 4-key pad (ESC, ENT)
Zero adjustment:	Set zero/Clear available
Damping:	0 to 100s (every 0.1s) for analog output and flow velocity/flow rate indication
Low flow rate cutoff:	0 to 5m/s in terms of flow velocity
Alarm:	Digital output available for Hardware fault or Process fault
Burnout:	Analog output: Hold/Overscale/Underscale/ Zero selectable Flow rate total: Hold/Count selectable Burnout timer: 0 to 100s (every 1s)
Bi-directional range:	Forward and reverse ranges configurable independently. Hysteresis: 0 to 10% of working range Working range applicable to digital output
Auto-2 range:	2 forward ranges configurable independently Hysteresis: 0 to 10% of working range Working range applicable to digital output
Flow switch:	Lower limit, upper limit configurable independently Digital output available for status at actuated point
Total switch:	Forward total switching point configurable Digital output available when actuated
External total preset:	Preset total settable upon contact input setting
Backup of power failure:	backup by non-volatile memory

Physical specifications

Type of enclosure:	Flow transmitter: FSV···S: IP66 FSV···H: IP67 (With large LCD) Detector: FSSA, FSSC: IP65 (When waterproot BNC connector is provided) FSSA,FSSC: IP65 (When water-proof type connector is fitting) FSSC (waterproofing): IP68 (submerged resistant structure for 5days)
Mounting method:	Flow transmitter: Mounted on wall or by 2B pipe Detector: Clamped on pipe surface
Acoustic coupler:	Acoustic coupler is a filling between detector and pipe.

Type of acoustic coupler:		<table 3>
Type	Silicone rubber (KE-348W)	Silicone grease (G40M)	Silicone-free grease (HIGH Z)	Grease for high temperature (KS62M)
Fluid temperature	-40 to +150°C	-30 to +150°C	0 to +60°C	-30 to +250°C
Teflon piping	X	Ο	Ο	Ο

In case of Teflon piping, use grease.

Material:	Flow transmitter: Aluminum alloy
Material:	Detector:	<table 4>
Detector Type	Sensor housing	Guide rail
FSSA	PBT	SUS304
FSSC	PBT	Aluminum alloy

* Please refer to the item 9 for the specification of the special detector
(for small diameter pipe, large diameter pipe and high temperature)

Signal cable:

• Structure: Heat-resisting high-frequency coaxial cable
• Sheath: Flame-resisting PVC
• Outer diameter: ø7.3mm

Terminal treatment	<table 5>
Cable type	FLYD
Applicable detector	FSSA, FSSC
Terminal of flow transmitter side	Rod terminal ×2 Amplifier terminal (M3) ×1
Terminal of detector side	BNC connector × 1 Amplifier terminal (M4) ×1

* Please refer to the item 9 for the specification of the special detector
(for small diameter pipe, large diameter pipe and high temperature)

Dimension, Mass:			<table 6>
	Type	Dimensions	Mass.(kg)
Flow transmitter	FSV···S (IP66) FSV···H (IP67)	H170 × W142 × D70mm H277 × W244 × D96mm	1.5 4.5
Detctor	FSSA FSSC	H50 × W348 × D34mm H88 × W480 × D53mm	0.4 1
Signal cable	FLYD	ø7.3mm	90g/m