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Fuji Flow Meter Product Overview: Electromagnetic and Non-Invasive Clamp-On Sensors
Quick Answer: Fuji Electric electromagnetic flowmeters handle conductive liquids from 0.1 µS/cm in line sizes from DN10 to DN400. Fuji Electric non-invasive clamp-on sensors measure flow through metal or plastic pipes without cutting the line. Silver Instruments supplies both types with 4-20 mA HART, pulse, and Modbus outputs, plus factory support for water, chemical, food, and marine applications.
Where Fuji Electromagnetic Flowmeters Fit
Electromagnetic flowmeters work well on conductive liquids. Water, wastewater, acids, caustic, slurries, and many food products are conductive enough for stable reading. Fuji Electric M-series electromagnetic flowmeters measure liquids with conductivity as low as 0.1 µS/cm. That covers most municipal water, effluent, brine, and chemical dosing lines.
We often size them from DN10 for small chemical injection skids up to DN400 for water transfer headers. Liners include PTFE, hard rubber, and polyurethane. Electrodes range from 316L stainless steel to Hastelloy C, titanium, and tantalum. This combination matters because a wrong electrode in seawater or acid will fail within months. In practice, process engineers send us the chloride concentration, pH, and temperature. We match the liner and electrode to that condition.
Output options are not exotic. Most users request 4-20 mA HART, pulse, or RS485 Modbus. For hazardous areas, Fuji electromagnetic flowmeters can be supplied with ATEX Zone 1 or Zone 2 approvals. A water utility in the Philippines ordered eight DN150 M-series Fuji electromagnetic flowmeters for a desalination plant brine line. The site used HART output to their DCS and pulse output for local totalizing.
Non-Invasive Clamp-On Sensors for Existing Lines
Clamp-on sensors solve a different problem. They do not touch the liquid. You strap the transducer to the outside of the pipe. That gives a fast option for retrofits where welding or shutdown is not allowed. Fuji Electric Portaflow C and Portaflow X clamp-on ultrasonic flowmeters cover pipe diameters from DN13 up to DN6000.
These sensors rely on ultrasonic transit-time measurement. They require a clean pipe surface and a pipe material that transmits sound. Carbon steel, stainless steel, PVC, and copper are common. Concrete-lined or heavily corroded pipes can cause signal loss. Most engineers skip this part and then wonder why the reading is unstable. We have seen a paint manufacturer in Vietnam run a clamp-on meter on a DN50 stainless line with good repeatability at flow rates from 0.1 to 10 m/s.
Temperature range for standard clamp-on sensors is -40 to 200°C. For higher surface temperatures, use high-temperature mounting brackets and acoustic couplant. Outputs are typically 4-20 mA, pulse, and Modbus. A marine operator in Singapore used a Portaflow X to balance cooling water flow on a DN250 carbon steel pipe without a shutdown.
Parameter Checklist for RFQ
To get a usable quote from Silver Instruments, include these details in your inquiry. Pipe diameter in DN or inches. Pipe material and wall thickness. Liquid type and
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Do not send only a general request like flow meter price. A DN100 electromagnetic flowmeter for clean water and a DN100 unit for 30 percent hydrochloric acid have different liner and electrode costs. The acid version may cost more than double. We quote based on the process condition, not just the line size.
Recommended Model Pairing
For conductive liquid in a new installation or a line that can be isolated, choose a Fuji Electric M-series electromagnetic flowmeter. Standard sizes DN10 to DN400, temperature -10 to 120°C for compact design, pressure up to PN40. Accuracy is around 0.3 percent of reading. Use this for water treatment, wastewater, sludge, chemical transfer, and food liquids with enough conductivity.
For a line that cannot be cut or an occasional measurement, choose a Fuji Electric Portaflow C or Portaflow X clamp-on ultrasonic sensor. Accuracy is around 1 to 2 percent of reading depending on pipe data and installation. Use this for cooling water, chilled water, building services, and audits. Both types can output 4-20 mA HART and integrate with a flow totalizer or PLC.
FAQ on Fuji Electromagnetic and Clamp-On Flow Meters
What is the minimum conductivity for a Fuji electromagnetic flowmeter?
Most Fuji M-series electromagnetic meters need at least 0.1 µS/cm. Demineralized water and some solvents fall below this limit. For those liquids, a clamp-on ultrasonic or Coriolis meter is a better fit.
Can a clamp-on flow meter work on a lined pipe?
Rubber-lined or concrete-lined pipes block acoustic signal in many cases. Carbon steel, stainless steel, PVC, HDPE, and copper pipes work well. The pipe must be full and the transducer spacing must match the wall thickness.
Do Fuji clamp-on sensors work for gas?
No. The Portaflow C and Portaflow X are for clean liquids with low solids or aeration. Gas flow requires a different meter type such as thermal mass or vortex.
What sizes do you stock for fast delivery?
We keep common Fuji M-series electromagnetic flowmeters in DN25, DN50, DN80, and DN100 with 316L electrodes and PTFE liner. Larger sizes and special electrodes usually need 3 to 5 weeks.
How do I request a quote for a seawater or chemical line?
Send us pipe size, liquid type, salinity or concentration, temperature, pressure, and output signal. Our engineers will select the liner, electrode, and flow range. You can reach Silver Instruments by phone at +86-25-68650347, WhatsApp at +86-25-52155837, or WeChat at +86 15365082610.
Send us your pipe diameter in DN, liquid type, conductivity in µS/cm, temperature in °C, pressure in bar, output signal, and flow range. Silver Instruments responds with a Fuji electromagnetic or clamp-on flow meter quote within 24 hours on business days. Phone +86-25-68650347, WhatsApp +86-25-52155837, WeChat +86 15365082610.
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