TTFM 6.1 Transit Time Flow Meter operates by measuring the “transit time” or “time of flight” for ultrasonic sound pulses transmitted from one transducer to another. Depending on the mounting configuration, the signal may cross the pipe once, twice or four times. To measure flow the transit time is compared between ultrasonic signals travelling upstream and downstream.The TTFM 6.1 works on a wide range of pipe sizes and materials including carbon steel, stainless steel, ductile iron, concrete lined ductile iron, cast iron, PVC, PVDF, fiberglass, copper, brass, aluminum and pipes with bonded liners including epoxy, rubber and Teflon.

PTFM 6.1 Portable Transit-Time Flow Meter designed for challenging flow applications in industrial environments. Easily deployed whenever you need it. Setup is simple - it only takes a couple of minutes to configure the PTFM 6.1 with your application parameters, install the transducers without interrupting your process, and begin measuring flow. With new, more powerful signal processing hardware, and three interchangeable, non-invasive transducer sizes optimized for a wide range of pipe sizes and materials, the PTFM 6.1 makes your next short or long-term measurement project easy.

DFM 6.1 is designed for "difficult liquids" that would damage regular flow meters - wastewater, slurries, sludge, chemicals, viscous liquids and abrasives. No obstruction to flow and no pressure drop. The non-intrusive, clamp-on ultrasonic sensor fits any pipe 1/2" (12.5 mm) Inside Diameter or larger. DFM 6.1 features enhanced performance in a wide range of applications. Improved industrial noise immunity filters potential interference sources. Sensor cable can be extended up to 500 ft. (152 m) with no loss of signal. The standard sensor is rated non-incendive for Class I, Division 2 hazardous locations and the DFM 6.1 can be equipped with optional Intrinsic Safety Barriers for sensor installation in Class I, Division I hazardous locations.

PDFM 5.1 is AC/DC powered with built-in NiMH batteries and external charger. With its 4-20mA output you can use the PDFM 5.1 as a spare transmitter in critical applications. The built-in 300,000 point Data Logger for flow studies and troubleshooting. Retrieve data logs with 'Greyline Logger' software is included free with each PDFM 5.1. Connect the USB output directly to your PC or Laptop to download data logger files.Ideal for troubleshooting, balancing and checking performance of permanent flow meters. The new PDFM 5.1 is fast and easy to operate. You can mount the sensor on the outside of a pipe in less than a minute. Use the built-in keypad calibration menu to set up the flowmeter in your application.

AVFM 6.1 measures flow through open channels, partially full pipes and surcharged pipes without a flume or weir. Ideal for wastewater stormwater, effluent, industrial wastewater & irrigation water.The AVFM 6.1 uses a submerged ultrasonic sensor to continuously measure both Velocity and Level in the channel. The sensor resists fouling, corrosion and abrasion. The flow meter can be configured with the standard submerged velocity-level sensor, or with submerged velocity plus a separate non-contacting ultrasonic level sensor, for highly aerated fluids or those with high concentration of suspended solids.

ISM 5.0 INSERTION MAGMETER

ISM 5.0 Insertion Magmeter senses flow using a low maintenance electromagnetic design with no moving parts. The dual-electrode sensor and continuous auto-zero function provides high accuracy – even at low flow rates. State-of-the-art electronics and patented design features help maintain its NIST traceable accuracy over time.The simplified hot tap insertion design allows for ISM 5.0 insertion and removal by hand, without a system shutdown.

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