Brand: pFlow

pFlow D348D Plus Multipath Ultrasonic Flowmeter

Name: pFlow D348D Plus Multipath Ultrasonic Flowmeter – Datasheet
Brand: pFlow

Description

Overview

The pFlow D348D Plus Multipath Ultrasonic Flowmeter is a state-of-the-art transit-time flow measurement instrument built on ARM COMA technology and low-voltage broadband pulse transmission. Designed to serve as a universal solution for demanding industrial flow measurement, the D348D Plus configures from 2 up to 6 acoustic sound channels, giving plant engineers redundant, high-reliability readings on large-diameter pipes where single-path meters struggle with turbulence and internal scaling. It is tolerant of liquids carrying small amounts of air bubbles or suspended solids, a common reality in industrial water, chemical, and cooling circuits.

As the official authorized partner and exclusive regional representative for pFlow Gentos, Seven Star LLC proudly supplies the D348D Plus to energy-saving audit programs, carbon assessment initiatives, and large-scale industrial metering projects across the Sultanate of Oman, Muscat, and the wider GCC region. Facility managers and energy auditors rely on this multipath instrument to deliver the non-contact, high-precision data needed to identify waste and support data-driven energy-efficiency decisions.

Measurement Principle

The pFlow D348D Plus operates on the ultrasonic transit-time principle, transmitting high-frequency acoustic pulses between transducer pairs mounted along the pipe. A pulse traveling with the direction of flow arrives faster than one traveling against it, and the meter’s internal microprocessor calculates the precise time differential between the two signals. Because this differential is directly proportional to fluid velocity, the instrument delivers volumetric flow readings accurate to ±0.5% of the measured value, with repeatability of 0.10%.

By operating multiple sound paths simultaneously across 2 to 6 channels, the D348D Plus compensates for velocity profile distortion caused by upstream disturbances, elbows, or partially filled large-diameter piping. Because the acoustic measurement involves zero moving parts, there is no mechanical wear, no pressure drop introduced into the line, and no risk of process contamination—critical advantages for continuous industrial operation and long-term energy audit accuracy.

Engineering Design of the pFlow D348D Plus

The pFlow D348D Plus transmitter is housed in a die-cast aluminum enclosure rated IP65, suitable for demanding plant-room and outdoor installation environments, while its encapsulated transducers carry an IP68 rating for long-term submerged or exposed duty. The unit is equipped with a 4.7-inch TFT color display and a 24-key tactile keypad, allowing field engineers to configure pipe parameters, sound-path count, and fluid characteristics directly on site without additional software.

Installation flexibility is a core design strength: the D348D Plus supports clamp-on and insertion mounting across pipe sizes from 1 inch to 200 inches (25mm to 5000mm), and standard transducer cable runs to 30 feet (9 meters) accommodate awkward plant layouts. A built-in TF card slot records up to 8 GB of logged flow data at intervals as tight as one second, giving auditors a complete historical dataset for later analysis.

Environmental ratings extend the transmitter’s operating window to –10°C to 60°C and standard transducers to –40°C to 80°C, with the electronics tolerating relative humidity from 0 to 99% RH non-condensing – a range that comfortably covers both indoor plant-room deployment and outdoor pipe runs exposed to Gulf summer heat and coastal humidity. Signal outputs extend beyond the standard 4–20mA loop to include a scalable pulse output to 9,999 Hz and a relay output switching at up to 1 Hz, giving integrators flexibility when tying the pFlow D348D Plus into legacy SCADA inputs that were never designed around Modbus RS-485 polling.

Key Features

The pFlow D348D Plus combines multipath redundancy with rugged industrial construction. Core capabilities include:

Configurable 2 to 6 acoustic sound channels for high-reliability measurement on large and irregular pipe diameters.
Exceptional flow accuracy of ±0.5% of measured value with repeatability of 0.10%.
Broad pipe size compatibility from 1″ to 200″ (25mm to 5000mm) across steel, aluminium, and PVC piping.
Low-power ARM COMA processing chip with strong anti-jamming performance in electrically noisy plant environments.
TF card data logging up to 8 GB, with recording intervals as fast as one second for detailed energy audits.
Multiple output options including 4–20mA analog, pulse/OCV, relay, and RS-485 Modbus communication.
Die-cast aluminum IP65 transmitter housing paired with IP68-rated encapsulated transducers.
4.7-inch TFT color display with a 24-key tactile keypad for straightforward on-site commissioning.
Wide environmental rating of –40°C to 80°C at the transducer supports both indoor plant-room and outdoor pipe-rack installation across the GCC.

Industrial Applications

The multipath design and wide pipe-size range of this ultrasonic flowmeter make the pFlow D348D Plus a natural fit for energy-saving audits, carbon footprint assessments, and large-diameter process metering across Oman’s industrial base. District cooling plants, municipal water networks, and petrochemical facilities use the D348D Plus to capture continuous, non-intrusive flow data that feeds directly into energy-efficiency and carbon-trading reporting programs.

As the officially authorized partner for pFlow Gentos, Seven Star LLC distributes the D348D Plus to water and wastewater treatment plants, HVAC networks, and process industries throughout the Sohar and Salalah economic zones and the broader GCC. Because the instrument tolerates minor air entrainment and suspended solids, it performs reliably in real-world industrial water and chemical lines where laboratory-grade purity cannot be guaranteed, giving energy auditors confidence in the resulting data. Beyond bulk process metering, the multipath configuration of the pFlow D348D Plus is also specified in ultra-pure water loops for semiconductor and electronics manufacturing and in wastewater treatment plants where suspended solids preclude the use of mechanical meters, applications where the manufacturer’s own project references confirm the instrument’s tolerance for non-ideal fluid conditions without loss of measurement confidence.

Technical Specifications

Full technical parameters for the pFlow D348D Plus multipath ultrasonic flowmeter:

Parameter	Specification
Model	pFlow D348D Plus
Measurement Principle	Ultrasonic Transit-Time, Multipath (2–6 channels)
Flow Velocity Range	±0.03 to 23 ft/s (±0.01 to 7 m/s)
Flow Accuracy	±0.5% of measured value
Repeatability	0.10%
Compatible Pipe Sizes	1″ to 200″ (25mm to 5000mm)
Compatible Pipe Materials	Carbon Steel, Stainless Steel, Aluminium, PVC
Output Communication	4–20mA, Pulse/OCT, Relay, RS-485 Modbus
Data Logging	TF Card, up to 8 GB, 1–13000 s interval
Power Supply	90–250 VAC or 10–36 VDC
Enclosure Rating	Transmitter IP65, Transducer IP68
Transmitter / Transducer Operating Temperature	–10°C to 60°C / –40°C to 80°C
Humidity Tolerance	0–99% RH, non-condensing
Pulse / Relay Output	Pulse to 9,999 Hz; relay switching to 1 Hz

Request a Quote for pFlow D348D Plus Multipath Ultrasonic Flowmeter

To submit a formal Request for Quote (RFQ), check current availability and lead time, or request complete technical datasheets for the pFlow D348D Plus Multipath Ultrasonic Flowmeter, 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 precision multipath flow metering for your energy-saving audit and industrial monitoring projects.

Reviews

There are no reviews yet.

How would you rate this product?

About brand

Clamp-on ultrasonic flow measurement is what pFlow does. The sensors strap to the outside of the pipe and measure liquid flow by transit time, so the line is not cut and nothing touches the fluid. The brand comes from Gentos, an instrument maker focused on ultrasonic flowmeters, flow sensors and heat and cooling energy meters.

Seven Star LLC is the pFlow agency for Oman and the GCC, listing pFlow ultrasonic flowmeters in fixed, portable and LoRaWAN versions, BTU meters and LoRaWAN flow control valves.

pFlow flowmeter families

Most of the listed models are compact clamp-on sensors grouped by pipe size and duty. The GF family (GFCL, GFR, GF-S-CL, GF-SH-CL for hot water and GF-GH-CL for immersion cooling) and the MF micro flowmeters (MFR, MFCL) serve cooling and process loops on small and medium pipes. The MP series are plug-and-play flow sensors, including the MP801 and a LoRaWAN version. The D116-BTU is a wall-mounted ultrasonic BTU meter, the P116 a portable flowmeter for surveys, and the F8 a fixed meter used in aquaculture. Gentos also builds the F3 series clip-on flowmeters, including a panel-mount version. The VC200-R is a LoRaWAN ball valve that works as a flow switch.

Where pFlow meters are used

The manufacturer documents use in liquid cooling for data centers and semiconductor plants, chilled and hot water metering in central air conditioning, water supply networks and irrigation, aquaculture, and utility lines in petrochemical and power plants.

Ordering a pFlow ultrasonic flowmeter: what we need

Clamp-on meters are selected from pipe data. Send the pipe outside diameter, wall thickness and material, any liner, the liquid and its temperature, the expected flow span and the straight pipe length available. Add the output you need (4-20 mA, pulse, Modbus, LoRaWAN) and the supply voltage. For BTU meters include the supply and return temperature span.

FAQ

Questions about the pFlow D348D Plus Multipath Ultrasonic Flowmeter

Answers from our engineering team on installation, compatibility and integration.

01How does the pFlow D348D Plus support energy-saving audits?

The D348D Plus provides continuous, non-contact flow data across up to 6 sound channels, giving auditors accurate, real-time volumetric readings that feed directly into energy-efficiency and carbon-reporting programs.

02Does installation require cutting the pipe or stopping the process?

No. The D348D Plus mounts using clamp-on or insertion transducers, so it can be installed without cutting the pipeline or shutting down the process, saving significant installation cost and downtime.

03What pipe sizes and materials is the pFlow D348D Plus compatible with?

It covers pipe diameters from 1 inch to 200 inches (25mm to 5000mm) and is compatible with carbon steel, stainless steel, aluminium, and PVC piping, making it suitable for most industrial and municipal pipelines.

04Can the D348D Plus integrate with existing SCADA or legacy systems?

Yes. In addition to its TF card data logging, the meter provides 4-20mA analog, pulse, relay, and RS-485 Modbus outputs, allowing straightforward integration with existing SCADA and building management systems.

05Is Seven Star LLC an authorized representative for pFlow products?

Yes. Seven Star LLC is the officially authorized partner and exclusive regional representative for pFlow Gentos in Oman and the GCC, supplying genuine products with local technical support.