Cox Exact Dual Rotor
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Exact Dual Rotor Turbine Flow Meters DESCRIPTION The Cox Exact Dual Rotor Turbine Flow Meter is the pinnacle of turbine meter technology that delivers results not attainable with single rotor designs. The Exact meter’s hydraulically coupled helical dual rotor design provides exceptional performance and many unparalleled benefits. The dual rotor design extends the flow measurement range, due to the high incidence angle on the second rotor, resulting in turndowns of 120:1 on the smallest meter to 500:1 on larger meters. This exceptional flow range allows universal viscosity curves to blend over a 60:1 turndown range. This wide flow range often eliminates the need for more costly manifold systems. Swirl effects on the leading rotor will have an opposite effect on the trailing rotor. Therefore, by summing (or averaging) both rotors, it will virtually cancel out rotor acceleration, eliminating the need for flow straighteners. With flow straighteners, the ratio of the two rotors can be monitored to determine bearing health. Reduced friction ceramic ball bearings, combined with a unique embedded pickoff system, impervious to vibration, makes the Exact Dual Rotor design ideal for onboard vehicle, flight and critical applications. Features Dual Rotors Benefits Superior absolute accuracy and wider turndown ratios are achieved. They also cancel out swirl effects. Exceptional speed-of-response, with reduced pressure drop Provide less friction and can be used in water and hydrocarbons Helical Rotor Design High-Performance Ceramic Ball Bearings Extended UVC Greater turndown flow range, while reducing Range the need for manifold systems High Shock Design Internals are rigidly clamped against a step in the bore, with rod and nut torqued design. Facility with Third party audits to ensure calibration NIST traceable uncertainty. Laboratory correlation to verify standards that all calibrators produce the same result. CALIBRATIONS Calibrations are accomplished by utilizing various blends of solvent and oil to simulate actual fluid conditions. For varying process temperature conditions, multiple viscosity calibrations are used to develop a universal viscosity curve. UVC calibrations enable a flow computer to track temperature and compensate for fluid viscosity. Flow Dynamics tailors calibrations to replicate process conditions, so the meter is characterized to provide the best possible accuracy. Calibrations are performed by our Flow Dynamics NVLAP (Lab Code 200668-0) accredited calibration facility located in Scottsdale AZ, which uses primary standard calibrators, offering uncertanties of ± 0.05 percent of reading with ± 0.02 percent repeatability. Users can be assured that Cox Precision Meters come with a best-in-class calibration, traceable to NIST standards. APPLICATIONS OEM flight and hydraulic component testing Precision industrial blending processes Engine test cells and test stands Precision flow monitoring On-board aerospace and automotive testing Custody transfer Correlation standards Flow Transfer Standard Master Meter Custom flight or industrial OEM packaging Product Data Sheet

Exact Dual Rotor Turbine Flow Meters OPERATION AND PERFORMANCE The fluid being measured passes through the rotors, which rotate proportionally to the velocity. The rotor blades travel through a field created by the radio frequency (RF) pickoffs, which generate pulses proportional to flow. Each pulse is transmitted to the meter electronics, where it amplifies the pulse output. The Cox Exact dual rotor design extends the lower flow range far below traditional single rotor designs by overcoming the drag and torsional forces exerted upon the rotor during normal operation. The dual rotors become...

Product Data Sheet FLOW RANGE SPECIFICATIONS Sizing and Range Repeatable Range 1 cSt Typical K-Factor (pulses/gallon) Rotor “A” Rotor “B” Dual Frequency Outputs See EC80 Flow Processor specifications for output selections.

Exact Dual Rotor Turbine Flow Meters NPT End Fittings

Product Data Sheet Flange End Fitting 2X FLANGES (PER ASME B16.5) Consult Factory B 2X HOSE BARB END FITTINGS (PER MS33658) NNOTE: Hose Barb fittings available for all ranges. Special end fittings are developed to meet your application requirements.

Exact Dual Rotor Turbine Flow Meters METER MODEL NUMBER Cox Exact Turbine Flow Meters Model Dual Rotor, MS Connector Dual Rotor, Explosion Proof Meter Size 8-4 (1/2" End Fitting, 1/4" Bore) 40 (2-1/2") Available for flanges only. 48 (3") Available for flanges only. 64 (4") Available for flanges only. End Fitting Type 37° MS Flare National Pipe Thread Hose Barb 150# ANSI Raised Face Flange 300# ANSI Raised Face Flange 600# ANSI Raised Face Flange Bearing Hybrid Ceramic Ball Bearing, Water/Hydrocarbon Service RF Carrier with Thermistor Specials 3-Digit Special Code (Leave blank for non-custom...

Product Data Sheet INTENTIONAL BLANK PAGE

Control. Manage. Optimize. COX INSTRUMENTS is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their respective entities. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specifications without notice, except to the extent an outstanding contractual obligation exists. © 2014 Badger Meter, Inc. All rights reserved. The Americas | Badger Meter | 4545 West Brown Deer Rd | PO Box 245036 | Milwaukee, WI 53224-9536 | 800-876-3837 | 414-355-0400 México | Badger...