Paddlewheel Flow Transmitter – FLS F6.30
The FLS F6.30 is a paddlewheel-based blind transmitter designed for measuring all types of solid-free liquids. It offers versatile output options, including a 4-20 mA signal for long-distance transmission and a Solid State Relay (SSR) that can be configured as an alarm or volumetric pulse output.
Equipped with a USB interface and dedicated software (available for free download from the FLS website), the F6.30 allows easy calibration and intuitive output configuration directly from a PC.
Its precision-engineered design delivers accurate flow measurements across a wide dynamic range, suitable for pipe sizes from DN15 (0.5”) to DN600 (24”).
Paddlewheel Flow Transmitter – FLS F6.30
Key Features Of Paddlewheel Flow Transmitter – FLS F6.30
- High chemical resistance
- Pipe size range: from DN15 (0,5”) to DN600 (24”)
- Low pressure drop
- Friendly calibration procedure
- 4-20 mA, frequency or volumetric pulse output settable by USB
- SSR settable as alarm by laptop

Technical Details of Paddlewheel Flow Transmitter – FLS F6.30
Specification | Details |
---|---|
Pipe Size Range | DN15 to DN600 (0.5” to 24”), refer to Installation Fittings section for more details |
Flow Rate Range | 0.15 to 8 m/s (0.5 to 25 ft./s) |
Linearity | ± 0.75 % of full scale |
Repeatability | ± 0.5 % of full scale |
Minimum Reynolds Number Required | 4500 |
Enclosure | IP65 |
Wetted Materials | Sensor Body: C-PVC, PVDF or 316L SS |
O-rings | EPDM or FPM |
Rotor | ECTFE (Halar®) |
Shaft | Ceramic (Al₂O₃) / 316L SS (for metal sensors) |
Bearings | Ceramic (Al₂O₃), none (for metal sensor) |
Power Supply | 12 to 24 VDC ± 10% regulated (reverse polarity and short circuit protected) |
Max Power Consumption | 150 mA |
Protective earth | < 10 Ω |
Current Output | 4-20 mA, isolated |
Max loop impedance | 800 Ω @ 24 VDC – 250 Ω @ 12 VDC |
Solid State Relay Output | User selectable as MIN alarm, MAX alarm, Volumetric, Pulse Out, Window alarm, Off |
Relay Output Specs | Optically isolated, 50 mA MAX sink, 24 VDC MAX pull-up voltage |
Max pulse/min | 300 |
Hysteresis | User selectable |
Certifications | Manufactured under ISO 9001, Manufactured under ISO 14001, CE, RoHS Compliant, EAC, FDA on request for paddlewheel in C-PVC/EPDM, PVDF/EPDM, SS316L/EPDM |
Storage Temperature | -30°C to +80°C (-22°F to 176°F) |
Ambient Temperature | -20°C to +70°C (-4°F to 158°F) |
Relative Humidity | 0 to 95% (non-condensing) |

Part No. | Version | Power supply | Length | Main wetted materials | Enclosure | Flow Rate Range | Weight (gr.) |
---|---|---|---|---|---|---|---|
F6.30.01 | Hall | 12 - 24 VDC | L0 | C-PVC/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 750 |
F6.30.02 | Hall | 12 - 24 VDC | L0 | C-PVC/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 750 |
F6.30.03 | Hall | 12 - 24 VDC | L1 | C-PVC/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 800 |
F6.30.04 | Hall | 12 - 24 VDC | L1 | C-PVC/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 800 |
F6.30.05 | Hall | 12 - 24 VDC | L0 | PVDF/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 750 |
F6.30.06 | Hall | 12 - 24 VDC | L0 | PVDF/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 750 |
F6.30.07 | Hall | 12 - 24 VDC | L1 | PVDF/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 800 |
F6.30.08 | Hall 12 - 24 | VDC | L1 | PVDF/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 800 |
F6.30.09 | Hall | 12 - 24 VDC | L0 | 316SS/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 950 |
F6.30.10 | Hall | 12 - 24 VDC | L0 | 316SS/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 950 |
F6.30.11 | Hall | 12 - 24 VDC | L1 | 316SS/EPDM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 1000 |
F6.30.12 | Hall | 12 - 24 VDC | L1 | 316SS/FPM | IP65 | 0.15 to 8 m/s (0.5 to 25 ft./s) | 1000 |
A – Sensor body
B – F6.30 Paddlewheel Flow Transmitter
1 – O-Ring (EPDM or FPM)
2 – Sensor body C-PVC, PVDF, 316L SS
3 – Halar Rotor, Ceramic shaft & bearings (316L SS shaft for metal sensors)
4 – Cable Gland
5 – ABS cap for installation into fittings (SS cap for metal sensors)
6 – Electronic box
Paddlewheel Flow Transmitter – FLS F6.30
Technical Specifications of Paddlewheel Flow Transmitter – FLS F6.30

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