The Greyline DFM 6.1 is designed to measure flow from outside a pipe for "difficult liquids" that would damage regular flow meters - wastewater, slurries, sludge, chemicals, viscous liquids, and abrasives. There is no obstruction to flow and no pressure drop. The non-intrusive, clamp-on ultrasonic sensor fits any pipe 12.5 mm (0.5 in) Inside Diameter or larger. The Greyline DFM 6.1 features enhanced performance in a wide range of applications. Improved industrial noise immunity filters potential interference sources.
Use the isolated 4-20 mA output to transmit flow to remote displays, recorders, or controllers. The programmable relays can be used for flow control, pump protection, or flow proportionate pulse. A 128 MB data logger is standard, capable of capturing up to 26 million data points.
Easy to Install and Configure
Non-Contacting Clamp-On Ultrasonic Sensor
Works on a Large Variety of Pipe Materials and Sizes
Large Back-lit Flow Rate Display and Totalizer
Isolated 4-20 mA Output
2 Programmable Control Relays
Optional MODBUS RTU or HART Output
128 MB Data Logger (26 million points)
Flow Rate Range - ± 0.03 m/s to 12.2 m/s (± 0.1 ft/s to 40 ft/s) in most applications
Pipe Size - Any pipe ID from 12.7 mm to 4.5 m (0.5 in to 180 in)
Accuracy - ±2% of reading or 0.03 m/s (0.1 ft/s) whichever is greater. Requires solids or bubbles minimum size of 100 microns, minimum concentration 75 ppm.
Repeatability: ±0.1%, Linearity ±0.5%
Display - White, backlit matrix - displays flow rate, relay states, 16-digit totalizer, operating mode, and calibration menu