Test and Measurement
20Pages

Precision Flow Measurement Solutions

Introduction Badger Meter is a leading innovator, manufacturer and marketer of flow measurement and control products, serving water and gas utilities, municipalities and industrial customers worldwide. Measuring a variety of fluids, products from Badger Meter are known for accuracy, durability and providing valuable measurement information to customers. Cox Precision metering products by Badger Meter provide flow measurement solutions for the test and measurement market and precision industrial applications. Cox Precision flow meters have been the icon of turbine flow meters since their...

Cox Solutions for Demanding Applications Fuel Component Test Stand • Cox Exact Dual Rotor Turbine Flow Meter with EC80 Flow Processor • Extended UVC range capability • Fully temperature compensated with a process latency of 100 microseconds Diesel Engine Test Cell • Cox Exact Dual Rotor Turbine Flow Meter and RCV Precision Flow Valve • Most precise for flow control and measurement Hydraulic Test Stand • Cox Precision Turbine Flow Meters with pre-amplifier • Superior linearity for improved viscosity tolerance Jet Engine Fuel Test Stand • Cox Exact Dual Rotor Turbine Flow Meter with Integral...

Test and Measurement Solutions Cox Precision flow meters have superior linearity, exceptional corrosion resistant ceramic bearings and microsecond-responsive flow processors. These features are designed into the Cox flow meters to provide solutions for the test and measurement, aircraft and automotive markets. Problem: Meter reading deviation due to temperature/viscosity variations. Cox Solution 1: Improved temperature/viscosity characteristics. Cox Precision Turbine Flow Meters provide exceptional linear mechanical turndown, which makes the meter less sensitive to temperature/viscosity...

Problem: Inability to respond to dynamic flow. Cox Solution: Rotor speed-of-response with reduced flow processor time. The Cox unique helical 3D single rotor design has a three milliseconds or less speed of response with a low-friction ceramic bearing. This is enhanced with a flow processor, which has a latency of 100 microseconds and provides an excellent flow response, as compared to other technologies on the market. Problem: No indication of monitoring bearing health. Exact Dual Rotor Internals Cox Solution: Bearing diagnostics. Cox Exact dual rotor patented technology, coupled with a...

Problem: Susceptibility for hydraulic shock and/or need for bi-directional flow. Cox Solution: Utilizing minimal moving parts. Exact dual rotor turbine meters use a rod-through clamping system that secures the internals on a machined step in the housing. This method of securing the internals makes a solid contact with the housing. The only moving member remaining is the rotation of the rotor. The Exact flow meter internal clamping system contributes to the ability to maintain a repeatability of ±0.02 percent. This type of clamping system not only facilitates bi-directional flow but also...

Cox Precision – Turbine Flow Meters Highly Accurate Linear Flow Measurements Unique Helical Rotor Design Superior Ceramic Bearings Wide Linear Flow Range Solution Cox Precision Turbine Flow Meters by Badger Meter are known around the world for providing highly accurate linear flow measurements. Users in the automotive, aerospace, and test and measurement environment experience the abundant performance advantages of Cox turbine flow meters. The following performance features are packaged in a small footprint with an array of available pipe connections. Unsurpassed Linearity Cox is the icon...

Pickoff Selections Pickoffs serve two functions: to sense the rotor blades and to generate a pulse output. In order to do this under varying temperature conditions, wiring, coils and soldering/brazing must be able to resist process temperatures, which are often as high as 750° F. Cox flow meters provide various pickoff temperature solutions and embedded amplifier options. M N Magnetic pickoffs are self-generating and do not need power, but they do create a magnetic braking effect on the rotor, which is detected at low flow rates. Modular carrier pickoffs require power, but do not influence...

Cox Precision LoFlo Solution The Cox Precision LoFlo meter is ideal for resolving low flow measurements in high pressure applications. The meter is comprised of a robust axial turbine rotor, using a ceramic ball bearing suitable for water, hydrocarbon or cryogenic fluids. The Precision LoFlo meter is inherently nonlinear, but is exceptionally repeatable within ±0.25 percent. When paired with an EC80 Flow Processor, the meter output is linearized to within ±0.1 percent. The Precision LoFlo meter is available in six meter sizes, which measure flow from 0.006…1.25 gpm. Flow straighteners are...

Cox Exact Dual Rotor High Performance Meter Advanced Performance Solutions The Cox Exact Dual Rotor Turbine Flow Meter offers features unattainable in single rotor designs. Essentially, three flow measurement signals are provided; leading rotor, trailing rotor and the sum or average of the two. These combinations provide usable information for bearing diagnostics, viscosity indication and negating swirl effects on measurement. Exact dual rotor flow meters have many solution-based attributes. The internals are designed for bi-directional and high shock applications and have the following...

Extended Range UVC Plots One of the major strengths of the Exact dual rotor flow meter is the ability to develop a superior blended Universal Viscosity Curve (UVC) over an extended range. The following dual rotor UVC plot demonstrates a nicely blended curve, which represents a flow range from 0.06…30 gpm (500:1 turndown). The curve reproduces the viscosities of Jet A, JP5 and JP8 fuels, over a temperature range of -65…300° F. The EC80 remote mounted flow processor will receive inputs from the dual rotors and temperature sensor. In combination with the UVC plot and using Strouhal-Roshko...