Instrumentation
Ultrasonic Flowmeter for Steam <FSJ>

Clamp-on type saturated steam flow measurements
Transmitter（FSJ）
Detector（FSX）

Contributes to “visualization” of steam flow and works in combination with EMS to optimize energy and achieve energy savings.

Installable without turning off steam line
No piping work required
Effective use of steam energy without pressure loss
Less maintenance costs due to no moving parts

Catalog

Equipment configuration

Features

No plumbing required

Installable with no pipe cutting or flange processing. Installable without stopping production lines and no steam leakage concerns since plumbing is not required.

No pressure loss

The ultrasonic sensors do not interfere with the steam flow.

Less maintenance cost

No moving parts help to reduce regular maintenance costs such as cleaning.

Enables measurements at low flow rates

The ultrasonic flowmeter can meusure at low flow rate, even at flow rates of 0.

Convertible to mass flow rate

The measured volume flow measurement and density (fixed value) input can be converted to mass flow rate and output. Density correction can also be performed by measuring the pressure (4 to 20 mA DC) and temperature (with resistance bulb) of the saturated steam and inputting as external signal (AI).

Accurate flow measurement

Noise elimination frame

The heat-resistant rubber frame on the piping surface can reduce noise and accurate cabtuning of the ultrasonic signals is achieuable.

Algorithm dedicated for steam measurement

Digital processing by Fuji own algorithm

Specifications

Item	Specifications
Mounting method	Clamp-on type
Measurement fluid	Saturated steam
Measuring method	Transit time difference
Flow velocity	0 to ±50 m/s
Accuracy	For required straight pipe length (upstream: 20 D or longer; downstream: 10 D or longer) Flow velocity 0 to 10 m/s: ±0.3 m/s (50 A), ±0.4 m/s (65, 80, 100 A) Flow velocity adove 10 to 30m/s: ±3% of rate (50 A), ±4% of rate (65, 80, 100 A) Flow velocity above 30 to 50 m/s: ±5% of rate







Required straight pipe length	Upstream: 20 D or longer; downstream: 10 D or longer
Piping material	Carbon steel, stainless steel
Pipe diameter	50 mm, 65 mm, 80mm, 100 mm
Pipe thickness	2.8 to 4.5 mm
Fluid temperature	120 to 180°C
Fluid pressure	0.1 to 0.9 MPa (G)
Moisture and splash	Wetness: 0%, there should be no splashing
Input (For mass flow rate conversion)	Current input (4 to 20 mA DC) ×1: Pressure measurement Temperature input (Pt100) ×1: Temperature measurement



Output	Current output (4 to 20 mA DC) ×1
Output	Contact output ×2
Mass flow rate conversion	fixed value input (density) · temperature input · pressure input


Communication	RS-485
Power supply/consumption	100 to 240 V AC, 20 VA
Degree of protection	IP67 (with connectors fitting)
Ambient temperature	-20 to +60°C
Ambient humidity	95% RH or less
Grounding	Class D grounding with ground resistance of 100Ω or less

Measurement may be unavailable depending on conditions.

Fuji Electric’s EMS Solution

“Visualization”, “Recognition” and “Optimization”.

The 3-steps contrubute to your energy management sollution, based on our vision of creating daily and continuous improvement of “energy management”.

STEP1　Visualization

Understanding energy usage

Understanding present situations and taking effective action immediately

Ascertaining the state of energy by measuring it at key points
Deploying known and feasible energy-saving measures

STEP2　Recognition

Energy management

Countermeasure point extraction and effect analysis

Achieving points of improvement while eliminating waste through energy-saving analysis support environment deployment
Establishing a daily improvement cycle
Model energy consumption trends through data collection

STEP3　Optimization

Energy usage optimization

Optimized usage, management and capital investment

Further reducing energy costs through use of energy-saving equipment and control technology
Achieving optimum supply control based on energy consumption models
Leveling energy loads through use of power generation and storage devices

Energy plant Configuration example

Measurement of energy (e.g., electric, water, air, steam) used in factories classified by system. Ascertainment of state of actually used energy and achievement of energy savings through optimized usage.