Accurate flow measurement of “difficult” fluids from outside a pipe
Ideal for “Difficult” Fluids
Pulsar Measurement Doppler Flow Meters monitor the flow rate of dirty or aerated liquids including wastewater, sewage, slurries, abrasives, and viscous liquids. Recommended for full pipes and any fluid that contains solids or bubbles.
External clamp-on sensor. No Contact, No Maintenance
The DFM 6.1 clamp-on sensor is mounted on the outside of any pipe 12.7 mm (0.5 in) diameter or larger. To measure velocity an acoustic signal is reflected to the sensor from moving particles or gas bubbles suspended in the fluid. Flow is calculated based on the configured pipe inside diameter. Installation is easy – without shutting down the flow system. No contact is made with the moving fluid and no pipe cutting or drilling is required. There is no fouling or scale build-up on the sensor. The DFM 6.1 Doppler Flow Meter includes an ultrasonic sensor, an easy to use 5-key configuration system, a large digital flow rate display with totalizer, isolated 4-20mA output, 26 million point data logger, and two programmable control relays. The sensor is classified as non-incendive for Class I Div 2 locations, and an intrinsically safe sensor is optional, for Class I Div 1 locations.
Designed for “difficult” liquids
The DFM 6.1 Doppler flow meter works best in applications that would defeat regular contacting flow meters. Because the sensor is mounted on the outside of the pipe, it is unaffected by abrasive or harsh fluids. There is no obstruction to flow and no pressure drop.
Enhanced signal processing & industrial noise immunity for reliable accuracy
The DFM 6.1 Doppler flow algorithm filters out background noise and interference. The high-speed digital signal processor discriminates against weak and distorted signals for increased reliability and accuracy.
The right meter for
- Wastewater
- Industrial Effluent
- Stormwater
- Combined Sewers
- Natural Streams
- Irrigation Water