FMR100 Series Metal Rotameter
Features
●Vertical, horizontal, corner type installation
●Optional on-site instant or cumulative flow display
●Stainless steel 304 material
●Low pressure drop, large flow range (10:1)
●Various outputs: 4-20mA, pulse and alarm.
Introduction
The FMR100 Series Metal Tube Rotameter is a variable area flow meter that measures flow based on the position of a float within a metal tube. Featuring a fully metal construction, this flow meter offers a compact size, low pressure drop, and a wide flow range (10:1), making it an ideal solution for precise flow measurement in complex and harsh environments. Its easy installation and maintenance make it suitable for industries that require accurate flow measurement under challenging conditions, such as low flow rates, low velocities, and aggressive media.
The FMR100 utilizes advanced non-contact magnetic field angle detection sensors, along with a Motorola microprocessing system, to provide features like LCD indication, flow accumulation, remote output (4-20mA), pulse output, and alarm outputs for both upper and lower limits. The flow meter is available in various installation configurations, including vertical, top-in bottom-out, side-in side-out, bottom-in side-out, threaded connections, and horizontal mounting options, offering flexibility to suit a variety of application needs.
This series is widely used in flow measurement and process control for small flow rates and harsh media in industries such as chemical processing, petrochemical, pharmaceuticals, and water treatment.
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Measuring range |
Water(20℃)6~200,000L/h Gas(20℃,0.1013MPa) 0.05-4000m3/h |
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Range ratio |
10:1(20:1 Customized) |
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Accuracy |
1.5(1.0 Customized) |
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Working pressure |
DN15~DN50 PN4.0MPa(32MPa Customized) DN80~DN100 PN1.6MPa(25MPa Customized) |
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Medium temperature |
Standard: -80~140 ℃ High temperature:400 ℃ PTFE lined:≤85℃ |
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Environmental temperature |
-40~120 ℃ |
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Medium viscosity |
DN15: ≤ 5mPa. S(F15.0~F15.4) ≤ 30mPa. S(F15.0~F15.9) DN25: ≤ 250mPa. S DN50~DN150: ≤ 300mPa. S |
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Display |
Instantaneous Flow Display Range: 0~ 50,000 Cumulative Flow Display Range: 0~ 99,999,999 |
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Output signal |
4-20mA, pulse and alarm |
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Power supply |
24VDC(10.8~36VDC),220VAC(85~265VAC) Or battery |
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Process connection |
Flange, thread |
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Electrical connection |
M20X1.5, PG11, 1/2NPT |
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Protection |
IP65 |
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Data sheet
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Manual
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Certificates

Pressure Measurement
Melt Pressure Measurement
Temperature Measurement
Position measurement
Level measurement
Level Sensor & Transmitter
Flow measurement