FlowGuard® FT401 - Impeller flowmeter
Description
Description
✅ Compact vane-type flow monitor for continuous flow monitoring in pipes at 0.3–6.0 m/s
✅ Precise measurement accuracy of ±3% (1–6 m/s) using wear-free magnetic Hall sensor technology
✅ Versatile output signals: 4–20 mA analog, pulse output, and switchable limit value alarm (PNP/NPN)
✅ Rugged IP67-rated housing for demanding industrial environments; media temperature range: -10 to +80°C
✅ High-pressure resistance up to 25 bar with chemically resistant PVDF/PEEK materials in the media area
✅ Easy installation with G3/8 process connection or optional adapters for various piping systems
✅ Intelligent LED status indicators for voltage, flow, and switch output status
✅ Integrated self-diagnostics after system startup for functional checks and operational reliability
✅ Compact dimensions of 90 x 39 x 39 mm with an M12 connector and reverse polarity protection for safe wiring
✅ Low-maintenance design with zirconium-ceramic bearings for long-term stability
✅ Ideal for water treatment, agriculture, biogas plants, and industrial cooling/heating circuits
✅ Easy installation with standard flow straightening sections of 10×ID before and 5×ID after the sensor
FlowGuard® FT401 - Impeller flowmeter - Pulse/switching output is in stock and is sent as soon as it is available again
Delivery time: Available in 1-2 weeks
Technische Zeichnung 3D: Download
Technische Zeichnung 2D: Download
Bedienungsanleitung DE: Download
Bedienungsanleitung EN: Download
Datenblatt DE: Download
Datenblatt EN: Download
specification
specification
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MediumLiquids
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Device typeCompact flow device
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Device designCompact device including sensor (permanently mounted), Paddle wheel flow meter
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Flow range0.3 ... 6.0 m/s , (depending on the adapter/pipe geometry used)
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Flow accuracy1 ... 6 m/s: ± 3%, 0.3 ... 1 m/s ±5 %
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Medium temperature-10 ... 80°C
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DisplayTwo LEDs (voltage and current)
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Protection class evaluation unitIP67
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Protection class sensorIP67
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Special featuresIntegrated self-diagnosis after start-up
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Output signalPulse output, Analog output, Switching output
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Switching output specificationSwitching output, adjustable closer
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Relay output specificationSwitching output, adjustable closer
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Process connectionG3/8-inch, alternative adapter
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Housing materialPlastic
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Sensor materialPVDF (impeller suspension), PEEK (impeller), Zirconium ceramic (impeller axle), Stainless steel DIN 1.4115 (bolt in propeller paddle) , Seal O-rings (EPDM/NBR)
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Pressure resistance25 bar
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Housing dimensions90 mm x 39 mm x 39 mm
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Power supply24 V DC ±10%
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Electrical connectionM12x1 (4-pin), with reverse polarity protection
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Load resistance400 Ω
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Current and contact ratingPNP active (max. 50 mA)
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Ambient temperature0 ... 55°C
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Ambient humiditymax. 90%
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CertificatesCE
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ATEX certificationnone
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SIL levelnone
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Country of origin
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Customs tariff number
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HS code
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Hysteresis0.02 ... 0.08 m/s (flow)
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Signal output reproducibility±1% of the measuring range
Frequently Asked Questions
Für welche Anwendungen ist der FlowGuard® FT401 besonders geeignet?
Für welche Anwendungen ist der FlowGuard® FT401 besonders geeignet?
Welche Mindestströmungsgeschwindigkeit benötigt der FT401 für stabile Messung?
Welche Mindestströmungsgeschwindigkeit benötigt der FT401 für stabile Messung?
Benötige ich spezielle Einlaufstrecken vor dem Sensor?
Benötige ich spezielle Einlaufstrecken vor dem Sensor?
Wie erfolgt die Programmierung des Schaltausgangs?
Wie erfolgt die Programmierung des Schaltausgangs?
Welche Wartung benötigt der FT401?
Welche Wartung benötigt der FT401?
Ist der FT401 für aggressive Medien geeignet?
Ist der FT401 für aggressive Medien geeignet?
Welche Adapter sind für verschiedene Rohranschlüsse verfügbar?
Welche Adapter sind für verschiedene Rohranschlüsse verfügbar?
Kann der FT401 bidirektionale Strömungen erkennen?
Kann der FT401 bidirektionale Strömungen erkennen?






