Brand: pFlow

pFlow D116-CP037 Ultrasonic Flowmeter – Industrial Clamp-On Transit-Time

Name: pFlow D116-CP037 Ultrasonic Flowmeter – Datasheet & Quote
Brand: pFlow

Description

Overview

The pFlow D116-CP037 Ultrasonic Flowmeter is an advanced industrial transit-time ultrasonic measurement system engineered for reliable, non-intrusive liquid flow monitoring across demanding applications. Designed around clamp-on CP037 transducers, this model eliminates the need for pipe cutting, welding, or shutdown, allowing operators to implement precision measurement without disturbing process continuity.

Unlike intrusive flowmeters that require wetted sensors, the D116-CP037 mounts externally to the pipe surface, using high-frequency ultrasonic signals to calculate flow velocity through transit-time differential analysis. This technology ensures accurate volumetric flow computation while preserving pipe integrity and eliminating pressure loss.

The system is optimized for industrial environments where reliability, accuracy, and flexibility are critical — including water treatment plants, HVAC infrastructure, manufacturing facilities, chemical processing, energy systems, and carbon monitoring installations.

Engineering Principle – Transit-Time Ultrasonic Measurement

The D116-CP037 operates on the transit-time method, which measures the time difference between ultrasonic pulses traveling upstream and downstream within the fluid.

When fluid is stationary, upstream and downstream transit times are equal.

When fluid flows, the pulse traveling with the flow arrives faster than the pulse traveling against it.

The microprocessor calculates this differential time and converts it into:

Flow velocity
Volumetric flow rate
Cumulative totalized flow

This method provides several engineering advantages:

No moving parts
No pressure drop
No internal wear
No obstruction
Long operational life
High repeatability

Compared to turbine flowmeters, there is no rotor fatigue.

Compared to electromagnetic flowmeters, conductivity is not required.

Compared to insertion meters, there is no pipe penetration risk.

Why D116-CP037 is Important for Industrial Projects

This model is not a basic portable flow meter. It is an industrial-grade solution with:

±1.0% measurement accuracy
~0.3% repeatability
Bi-directional flow measurement
Multi-signal output (4-20 mA, pulse, RS485 Modbus)
Data logging capability
Wide pipe size compatibility (1″–48″ / 25–1200 mm)
IP65 transmitter enclosure
IP68 CP037 clamp-on transducers

This makes it suitable for long-term installation in process environments, not just temporary measurement.

Installation Advantage – Zero Process Interruption

Because the CP037 sensors clamp externally:

No cutting
No welding
No shutdown
No contamination risk
No leak potential

This is particularly valuable in:

Continuous process lines
Critical cooling systems
Municipal water networks
Chemical pipelines
Carbon audit systems

Installation downtime reduction can significantly reduce operational costs.

Industrial Applications

The pFlow D116-CP037 Ultrasonic Flowmeter is used in:

Water & Wastewater

Flow monitoring in treatment plants, distribution systems, and effluent measurement.

HVAC & Energy

Chilled water flow monitoring, district cooling, heat exchange loops.

Industrial Manufacturing

Process water control, cooling circuits, production line monitoring.

Carbon Audit & ESG Reporting

Accurate flow data collection for environmental performance documentation.

Chemical & Process Plants

Liquid monitoring without chemical exposure to internal sensors.

Utility & Municipal Systems

Flow tracking in large diameter pipelines.

Technical Specifications

Specification	Details
Brand	pFlow
Model	D116-CP037
Technology	Transit-Time Ultrasonic
Accuracy	±1.0% of reading
Repeatability	~0.3%
Pipe Diameter Range	25 mm – 1200 mm (1″–48″)
Flow Velocity Range	±0.01 – 5.0 m/s
Outputs	4-20 mA, Pulse, RS485 (Modbus)
Display	20×2 Backlit LCD
Keypad	16 tactile keys
Transducer Type	CP037 Clamp-On
Transducer Rating	IP68
Transmitter Rating	IP65
Power Supply	10–36 VDC
Cable Length	9 m standard
Suitable Fluids	Clean water, cooling water, wastewater, compatible liquids

Engineering Notes

The D116-CP037 performs best when:

Pipe interior is free from heavy scaling
Fluid is relatively clean (minimal solids or bubbles)
Proper sensor spacing is configured via built-in calculator
Straight pipe run recommendations are followed

Because it uses ultrasonic propagation, excessive aeration or heavy slurry conditions may reduce signal quality. For such cases, alternate technologies should be evaluated.

Competitive Positioning

Compared to electromagnetic flowmeters:

✔ No conductivity requirement

✔ No electrode fouling

✔ No internal corrosion

Compared to turbine meters:

✔ No mechanical wear

✔ No moving parts

✔ No pressure drop

Compared to insertion flow meters:

✔ Non-intrusive

✔ No leakage risk

✔ No pipe penetration

This makes D116-CP037 a flexible retrofit solution.

Request a Quote for pFlow D116-CP037 Ultrasonic Flowmeter – Industrial Clamp-On Transit-Time

Seven Star LLC is the official authorized representative of pFlow in Oman, supplying pFlow instruments on request with direct factory technical support and local technical support throughout Oman and the GCC. For pricing, project consultation, lead time, and technical selection assistance regarding the pFlow D116-CP037 Ultrasonic Flowmeter, contact Seven Star LLC. Our engineering team will assist in proper sizing, installation planning, and system integration.

Related Products

Also available: pFlow MP LoRaWAN Series Clamp-On Flow Sensor

Where the pFlow D116-CP037 is used

Water treatment plants
HVAC systems
Manufacturing facilities
Chemical processing lines
Energy systems

Selection checklist for the pFlow D116-CP037

Pipe size
Pipe material
Liquid type
Transducer type
Straight pipe length
Output needed
Power supply
Flow direction

Installation, commissioning and maintenance notes for the pFlow D116-CP037

Clean the pipe surface and fit the clamp-on transducers at the spacing shown by the meter. Enter the pipe data and check the signal. Check the transducer contact at regular intervals.

Requesting a quotation for the pFlow D116-CP037

Please send the pipe size, the pipe material and the liquid needed. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

D116-CP037 meter type

It is a clamp-on transit-time ultrasonic flowmeter.

D116-CP037 brand

It is sold under the pFlow brand.

D116-CP037 transducers

It uses CP037 clamp-on transducers.

D116-CP037 mounting

The transducers mount on the outside of the pipe.

D116-CP037 no cutting

No pipe cutting or welding is needed.

D116-CP037 no shutdown

The line can keep running during installation.

D116-CP037 non-intrusive

It has no wetted sensors.

D116-CP037 pressure loss

It adds no pressure loss to the line.

D116-CP037 method

It measures the transit-time difference of ultrasonic pulses.

D116-CP037 still fluid

With no flow, upstream and downstream times are equal.

D116-CP037 moving fluid

With flow, the pulse with the flow arrives first.

D116-CP037 flow velocity

The processor converts the time difference to flow velocity.

D116-CP037 flow rate

It also calculates the volumetric flow rate.

D116-CP037 totalizer

It also gives the cumulative totalized flow.

D116-CP037 moving parts

It has no moving parts.

D116-CP037 wear

It has no internal wear.

D116-CP037 obstruction

It puts no obstruction in the pipe.

D116-CP037 service life

It offers a long operational life.

D116-CP037 versus turbine

Unlike a turbine meter, it has no rotor to wear.

D116-CP037 versus electromagnetic

Unlike an electromagnetic meter, it does not need conductivity.

D116-CP037 versus insertion

Unlike an insertion meter, it has no pipe penetration.

D116-CP037 carbon monitoring

It is also used in carbon monitoring installations.

D116-CP037 duty

It is an industrial meter, not a basic portable one.

Flow records for the pFlow D116-CP037

Record the pipe data, the transducer spacing and the date of each check.

Choosing the right pFlow D116-CP037 setup

Choose the setup from the pipe size, the pipe material and the liquid.

Datasheets & Documents

Datasheet pFlow D116 Datasheet Download

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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.