Hydro Power, Water Treatment, Wastewater Treatment, Chillers, HVAC, Energy Management, Process Plants

Fixed Installation Wetted Sensor Transit Time

(Transit time is for clean water)

Rittmeyer’s Risonic Modular Multi-Path Water Flow Meters are for large pipes including penstocks and tunnels. Suitable for pipe diameters up to 11 meters (36-feet) and open channels 7 to 70 meters wide, these meters achieve accuracies to +/- 0.5% of rate. The Risonic Modular flow meters meet the standards of the IEC-41 and ASME PTC-18 codes for hydro-electric turbine efficiency testing.

Recently, Cascadia supplied a Rittmeyer Risonic 2000 eight path, turbine efficiency testing transit time flow meter to the East Toba & Montrose Hydroelectric Project in the Toba Valley, BC.

Fixed Clamp-On Transit Time

The Non-Contact NCM Series Clamp-On Ultrasonic Transit Time Flow and Energy Meter install easily on most pipes. These meters are for full-pipe, clean to dirty liquid applications.

Examples of specific applications include: well water, chilled water, hot water, city water, cooling tower water, deionized water, sea water, sewage, and acids. The NCM is available in two versions: NCMB, a standalone flow meter and NCME, an energy flow meter that measures flow and energy usage in BTU or Tons (ideal for retrofit, chilled water and other HVAC applications).

Portable Clamp-On Transit Time

The NCM-603 Hand Held clamp-on Ultrasonic Transit Time flowmeter is Ideal for monitoring full pipe clean liquid applications. Suitable for metal and plastic pipes. Magnetic transducers install easily on ferrous metal pipes and it includes a strap on mounting kit for non-ferrous and plastic pipes. Typical applications are; river water, well water, chilled water, hot water, potable water, cooling tower water, deionized water, sea water and acids.

Fixed Clamp-On Doppler (F-100-DFM5)

The F-100-DFM5 installs easily on metal and plastic pipes that are full of liquid. This flow meter is recommended for dirty liquids including wastewater, sewage, sludge, paper stock, slurries and more. Application requirements are for liquids with suspended solids or aeration greater than 100 microns (75ppm).

Portable Clamp-On Ultrasonic Doppler

Ultrasonic Doppler flow meters are for; dirty or aerated liquids, some slurries and lubrication fluids, in full pipes.

Use it to monitor and balance flow, or to troubleshoot flow problems in full pipes. It is ideal to evaluate performance of in-line flow meters and can be installed, calibrated and started-up in minutes. Use it for projects where a permanent flow meter is not required or to temporarily replace installed flow transmitters.


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778-578-7956