The Fuji Electric FSV ultrasonic flowmeter is the latest generation of high performance ultrasonic liquid flowmeters using transit time technology.
It is particularly effective in applications where high accuracy is required and the flowmeter must be installed without stopping the process. It is the perfect option for measuring relatively clean and homogeneous liquid flows in closed and filled pipes.
Ultrasonic flowmeters operate on the transit time principle.
These flowmeters work by comparing the travel time of an ultrasonic signal in counterflow (upstream) and the travel time of an ultrasonic signal with flow (downstream).
The difference between these transit times is proportional to the flow rate, and the flowmeter converts this information into flow rate and total.
The FSV flow meter uses clamp-on sensors.
These sensors attach to the outside of pipes and can be used on pipes from 13 to 6000 mm (0.5 to 235 inches) at liquid temperatures from -40 to 200°C (-40 to 390°F).
The required pipe system layout is a straight run of 10x and 5x pipe diameters upstream and downstream respectively.
The transducers are mounted outside the pipe, which is a superior method to insertion flow meters and other more traditional and invasive types of flow measurement instruments.
This product is virtually maintenance free.
Advanced digital signal processing technology allows the FSV to offer a compact, lightweight solution with accuracies better than ±1% of flow, with minimal influence of pressure or temperature of the fluid being measured.
In addition, it offers best-in-class anti-bubble performance, allowing accurate readings even when air bubble content reaches 12% of volume at a velocity of 0.3m/s.
Its rugged construction makes it ideal for installation in indoor and outdoor environments where IP66 (NEMA 4X) protection is required.
The flowmeter has three measurement outputs that can be selected to display flow (volume or mass) and total flow.
Various output options, such as 4-20 mA, transistors and RS485 (Modbus) are available for configurable alarm thresholds.
The FSV ultrasonic flowmeter is a compact meter with a choice of reading displays.
Configuration is simple and intuitive using push buttons on the front panel.
It can be configured to automatically calibrate the flow sensor and transmit data via RS485 (Modbus) over distances of up to 350m.
A display and integrated keypad allow the user to configure and view all parameters. The internal menus are available in several languages (French, English, German, Spanish and Japanese).
The flow meter includes a sensor spacing calculation tool.
The flowmeter can also be configured using PC compatible software supplied free with each converter and a charging cable.
The software allows :
The ultrasonic flowmeter Time Delta-C model FSV consists of a sensor that can be mounted on the pipe (DN 13 to 6000 mm depending on the sensor) and a remotely mounted digital converter.
The flow velocity can be bidirectional and vary from -32 to +32 m/s. FSV flowmeters are well suited to relatively clean fluids with low to moderate aeration.
Non-intrusive ultrasonic flowmeters are used in many industrial applications :
|Fluids||Uniform liquid in which ultrasonic waves can propagate (deionized water, cooling water, chemical solution, tap water, etc.)|
|Measurement principle||Transit time propagation time difference method – 1 path|
|Fluid temperature||-40°C to 200℃ (depends on detector)|
|Applicable pipes||Detector||Inner diameter||Materials|
|FSSA (V method)||25–225 mm||Plastic (PVC, etc.) Note 1|
Metal (SS, steel, copper, aluminum etc.)
|FSSC (V method)||50–600 mm|
|FSSC (Z method)||600–1200 mm|
|FSSD (V method)||13-100 mm|
|FSSE (V or Z method)||200-6000 mm|
|FSSH (V or Z method)||50-400 mm|
Note 1 FSSC for the following pipes::
|Range||0 to ±0.3 ±32 m/s|
|Accuracy||±1,0% of rate (when flow velocity is ≥2 m/s)|
|Response time||0.2 secondes (Quick mode response)|
|Ambient temperature||-20°C to +55°C (transmitter)|
-20°C to +60°C 80°C (depends on detector)
|Analog output||4–20 mA CC, 1 point (maximum load resistence.: 600Ω)|
|Contact output||Open collector: 2 points|
Total, alarm, etc.
Total pulse output: 1 P/day to 100 P/s (open collector)
|Serial communication||RS-485 (MODBUS) (option)|
|Display||LCD with back light, 2-lines 16-digits|
|Keypad||4 keys (ESC, up, shift, enter), Operation on panel (IP66 enclosure version)|
|Power supply voltage||100–240 V AC, 50/60 Hz, or 20–30 V DC|
|Transmitter enclosure||Aluminum alloy, IP66 or IP67|
|Transmitter mounting||Wall mounted or pipe mounted|
|Transmitter dimensions (mm)||H170 x W142 x D70 (version IP66)|
|H220 x W230 x D95 (version IP67)|