The PDFM 6.1 Portable Doppler Flow Meter a clamp-on flow meter for mediums with the presence of suspended solids or undissolved gases. It can be used for immediate performance evaluation, or deployed for longer term flow studies.
Measurement can be taken in minutes from the outside of the pipe. No shutdown or flow stoppage required.
The PDFM has more advanced signal processing, a low-power mode for extended flow logging applications, and a rugged IP67 extruded aluminum enclosure. The PDFM 6.1 is the right choice for your next immediate or long-term flow measurement application for fluids with solids and undissolved gases present. Ideal for aerated water, viscous liquids, slurries, and abrasives. No downtime is required.
The PDFM 6.1 comes equipped with everything you need to install it in just a couple of minutes. There’s no need to configure pipe material, wall thickness, liner configuration, or fluid characteristics before setting up. Simply clamp the single ultrasonic sensor to the pipe, set the inside pipe diameter in the easy-to-use programming menu. The meter will immediately report flow when solids or undissolved gases are present and moving.
Where clamp-on transit-time or contacting flow technologies struggle to measure or need increased maintenance because of the presence of solids or gas in the medium, the PDFM 6.1 and its clamp-on Doppler technology doesn’t. By measuring the frequency shift of ultrasonic echoes reflecting off the solids or gas from outside the pipe, the meter can determine the velocity without contacting the medium. The flow rate of any fluid can be measured as long as there are solids or air bubbles present.
This means the PDFM 6.1 is perfect for the most challenging applications like municipal and industrial wastewater, sludge, produced water, slurries, viscous liquids, pulp stock, and abrasives.
The extruded aluminum enclosure with protective covers guard the PDFM 6.1 against damage from falls or impacts that can occur when using the meter in real-world applications. The meter is ready for use outside thanks to IP67-rated connectors and a bright LCD display which makes seeing the screen easy even in the brightest environments. Deploy the meter with confidence knowing it’s ready to handle whatever your application can throw at it.
Each PDFM 6.1 Portable Doppler Flow Meter comes in a rugged PELICAN™ case, along with a clamp-on sensor, and stainless-steel mounting kit. Use it for projects where a permanent flow meter is not required, to temporarily replace installed meters that have failed, or to verify output on an existing meter.
The PDFM 6.1’s sleep mode extends battery life for long-term data logging at locations where power is not available. By automatically going to a low power state and then “waking up” to take a measurement at the user-defined interval, battery life is greatly extended.
The PDFM 6.1 features advanced signal processing, capable of filtering out background noise and interference, as well as improving accuracy and repeatability in the most challenging Doppler flow applications like extremely dense slurries. With new on-screen signal capture capabilities, it has never been easier to fine-tune to your specific application.
Should you wish to purchase a Doppler flow meter this can be done through our sister company Flowquip Ltd.
The following weekly hire rates are intended as a guide for the NEW Pulsar PDFM 6.1 Portable Doppler Flow Meter. Please contact us for more information on +44 (0) 1422 829930.
