pFlow F3 API WiFi iCloud Wireless Clip-On Ultrasonic Flow Meter

Overview

The pFlow F3 API WiFi iCloud Wireless Clip-On Ultrasonic Flow Meter is a compact, lightweight instrument purpose-built for accurate water metering with full wireless connectivity. Built on Gentos’ Time Comb Technology (TCT) for measuring signal flight time, the F3 clamps directly onto the pipe exterior, is powered up, and configured for pipe diameter in minutes—delivering minimum downtime and maximum system availability for water metering and building management applications.

As the official authorized partner and exclusive regional representative for pFlow Gentos, Seven Star LLC proudly supplies the F3 to water utilities, property management companies, and building automation integrators across the Sultanate of Oman, Muscat, and the wider GCC. Its WiFi and API iCloud connectivity allow facility teams to view flow data charts and download statistical tables remotely from a mobile phone or PC, supporting the region’s growing demand for connected water metering infrastructure.

Measurement Principle

The pFlow F3 operates on the ultrasonic transit-time principle using Time Comb Technology. Two sensors are placed on the outside of the pipe, and each transmits an ultrasonic pulse through the pipe wall into the flowing liquid, then onward to the opposing sensor. The speed of the liquid accelerates a pulse traveling with the flow and decelerates one traveling against it, and the F3’s processor calculates the flow rate from the difference between these transit times.

Because this transit-time method has zero moving parts, the F3 is unaffected by fluid pressure or temperature changes, and it introduces no corrosion risk or pressure drop into the pipeline. This non-invasive, contactless measurement principle also translates into extended low-flow accuracy compared with mechanical meters, a meaningful advantage in residential and commercial water metering applications where consumption can vary widely throughout the day.

Engineering Design of the pFlow F3

The pFlow F3 is available in a range of clamp-on sizes matched to specific pipe outer diameters, from F3-DN20 (21–29mm OD) through F3-DN80 (83–91mm OD), with each unit built for a single pipe material selection—PVC, carbon steel, stainless steel, or copper—ordered to match the installation. This factory-matched approach ensures optimal acoustic coupling and measurement accuracy once clamped in place.

The unit integrates a 1.44-inch LCD display with a simple three-button interface, allowing installers to complete pipe diameter, time, and unit settings directly on site before viewing live flow data. Beyond the standard RS485, 4–20mA, and OCT+Pulse outputs, the built-in WiFi module connects the F3 to the internet via WLAN, uploading data to a cloud server accessible through the API iCloud platform for remote consumption tracking.

Key Features

The pFlow F3 combines a compact clamp-on footprint with comprehensive wireless connectivity. Core capabilities include:

• Native WiFi connectivity with API iCloud integration for remote flow monitoring and statistical reporting.
• Clamp-on installation with no pipe rework or damage, unaffected by fluid pressure.
• 1.44-inch LCD display with a straightforward three-button interface for on-site configuration.
• Multiple output options including RS485, 4–20mA analog, and OCT+Pulse.
• Factory-matched clamp-on sizing from DN20 to DN80 for precise acoustic coupling.
• Compatible with PVC, carbon steel, stainless steel, and copper pipe materials.
• No corrosion risk and fast installation, ideal for retrofitting existing water networks.
• Zero moving parts, delivering extended low-flow accuracy and long service life.

Industrial Applications

The wireless connectivity and compact design of the pFlow F3 make it well suited to water metering, building management, and property metering applications across Oman’s residential and commercial developments. Its clamp-on installation and WiFi cloud reporting are particularly valuable for retrofit projects, where property managers need consumption data without disturbing existing plumbing.

As the officially authorized partner for pFlow Gentos, Seven Star LLC distributes the F3 to water utilities, hospitality developments, and building automation projects throughout the Sohar and Salalah economic zones and the broader GCC region. The API iCloud platform gives facilities and utility teams the ability to monitor and download consumption statistics remotely, supporting the transparent, data-driven water stewardship increasingly required across the region.

Performance Envelope and Operating Limits

Gentos specifies the pFlow F3 at an accuracy of ±2.0% over a measuring velocity range of ±0.03 m/s to ±5 m/s. Two things follow from that envelope. The bidirectional sign means the meter resolves reverse flow rather than simply registering magnitude, which matters on ring mains and on booster-set returns where backflow is a diagnostic signal rather than a fault. The low-end figure of 0.03 m/s is the more commercially interesting number: on a DN50 line that corresponds to a very small overnight draw, and it is precisely the region in which a worn mechanical meter under-registers and quietly writes off revenue or masks a leak.

Operating limits should be checked against the installation before ordering. The transmitter is rated for an ambient range of −10 °C to +50 °C and the measured medium for 0 °C to +60 °C, with relative humidity permitted up to 99% non-condensing. Enclosure protection is IP54, which suits wall-mounted risers, plant rooms, ceiling voids, and sheltered external runs, but rules out installation in flooded valve chambers or below-grade pits without a secondary enclosure — a distinction worth settling at survey stage on Omani district-metering projects, where meter positions are often inherited from an existing mechanical installation.

Power, Protocols, and Network Integration

The pFlow F3 runs from a 10–36 VDC supply drawing up to 500 mA, which lets it share a standard 24 VDC field distribution with the rest of a building management installation instead of requiring a dedicated mains feed and a local isolator. Where the meter sits away from existing field power, this wide input range also accommodates small solar or battery-backed supplies on remote irrigation and landscape-watering points.

On the data side, the RS485 port carries MODBUS, giving a direct path into a BMS, SCADA head end, or third-party data logger without a protocol gateway, while the 4–20 mA output feeds legacy analogue inputs and the OCT/pulse output drives conventional pulse-counting billing equipment. The WiFi and API iCloud path runs in parallel with these hardwired outputs rather than replacing them, so a site can publish consumption to the cloud for tenant billing and reporting while the same meter continues to serve the local control system. For multi-tenant developments in Muscat this dual path is often the deciding factor, because it avoids a second meter or a second wiring campaign when a property changes management or billing arrangements.

Technical Specifications

Full technical parameters for the pFlow F3 wireless clip-on ultrasonic flow meter:

Request a Quote for pFlow F3 API WiFi iCloud Wireless Clip-On Ultrasonic Flow Meter

To submit a formal Request for Quote (RFQ), check current availability and lead time, or request complete technical datasheets for the pFlow F3 API WiFi iCloud Wireless Clip-On Ultrasonic Flow Meter, please contact the official instrumentation division at Seven Star LLC today. As the authorized partner for pFlow Gentos in Oman and the GCC, our engineers are ready to assist with commercial sourcing and cloud-connected water metering integration.

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