VX
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VORTEX IN-LINE FLOW METERS For Multi-Parameter Meters see mVX Design Features Vortices are created when a fluid passes around a bluff body as shown in Figure 1. Vortices are alternately shed on each side of the body, 180 degrees out of phase to each other, resulting in an oscillating pressure gradient. As flow increases the frequency of vortices increases in proportion to the increased flow thereby creating a linear relationship. No moving parts to wear or fail. Electronics can be remotely mounted up to 30.5 m (100 ft). No fluid to sensor contact. No holes to clog. Aalborg’s proprietary DSP algorithm accurately filters vortex frequency. High flow turndown ratio up to 10:1. Dual signal processing technology improves accuracy at low flows. Accuracy of + 1% of rate. Noise cancellation technology. Extensive Diagnostics. Password protected data entry. Volumetric and mass flow information simultaneously displayed. Selectable engineering units. On board computer calculates density and mass flow. Two programmable totalizers. Vortex In-line Flow Meter Shown with Wafer Mounting General Description Constructed of type 316 stainless steel, wafers may be installed in-line by customer provided or built-in flanges. Key pad or communication interface functionalities include measuring units, programmable flow alarm, two programmable totalizers, programmable flow rate pulse output, two programmable optically isolated outputs, battery backed real time clock (RTC), digital communication interface (RS-232 or RS-485), programmable diagnostic events log and register with date and time stamp, programmable process variable log with date stamp, calibration and flowing fluid parameters adjustment, extensive diagnostics. Our exclusive dual signal processing technology independently measures each vortex on either side of the bluff body and filters out non-flow noise. This results in less noise and higher accuracy throughout the flow range. Aalborg’s proprietary DSP algorithm accurately filters vortex frequency, improving the quality of flow measurements. Local 2x16 LCD readout provides flow rate and total flow volume reading in selectable engineering units, diagnostic events indication and feature a password protected access to the process parameters to ensure against tampering or resetting. TABLE 40 - FUNCTIONAL SPECIFICATIONS MAXIMUM PRESSURE 69 bar (1000 psig) with wafer mount See Table 49 for flange mount. FLUID TEMPERATURE HIGH FLOW CUT-OFF Two user programmable analog 4-20 mA outputs (600 Ohms or less load), two sets of user-programmable optically isolated outputs, one user programmable optically isolated flow pulse output, RS-232 or RS-485 Digital Interface with Multi-Drop Capability of up to 255 units (RS-485 option). LINEAR RANGE Vortex In-line Flow Meter Shown with Flange Mounting 61 www.aalborg.com - e-mail ౧ info@aalborg.com - ( 845.770.3000 - fax 845.770.3010 - Toll Free in U.S.A. and Canada 1.800.866.3837 FLUID TYPES

VORTEX IN-LINE FLOW METERS TABLE 43 - ELECTRONIC SPECIFICATIONS AMBIENT TEMPERATURE Two lines, 16 alphanumeric characters each, programmable for different process variable rate and total. Measuring Units, Programmable Flow Alarm, Two Programmable Totalizers, Programmable Flow Rate Pulse Output, Two Programmable Optically Isolated Outputs, Two Programmable analog 4-20 mA outputs, Battery Backed Real Time Clock [RTC], Digital communication inter face (RS-232 or RS-485), Programmable Diagnostic events Log and register with date and time stamp, Programmable Process Variable Data Log (total...

VORTEX IN-LINE FLOW METERS Flow Ranges Minimum and maximum flow rates to achieve accuracy in gal/min, L/min. Pipe ID based on schedule 80 steel. TABLE 44 - WATER FLOW RATES AT 60 FF 3/4" Minimum and maximum flow rates to achieve accuracy lb/hr. Pipe ID based on schedule 80 steel. TABLE 45 - SATURATED STEAM FLOW RATES AT SELECTED PROCESS PRESSURES (English) SIZE (INCH) PRESSURE (psig) 63 www.aalborg.com - e-mail ౧ info@aalborg.com - ( 845.770.3000 - fax 845.770.3010 - Toll Free in U.S.A. and Canada 1.800.866.3837

VORTEX IN-LINE FLOW METERS Minimum and maximum flow rates to achieve accuracy in (kg/hr) Pipe ID based on schedule 80 steel. TABLE 46 - SATURATED STEAM FLOW RATES AT SELECTED PROCESS PRESSURES (Metric) Size (mm) Pressure (bara) Minimum and maximum flow rates to achieve accuracy in CFPM (14.7 psia 70 FF) CFM at actual process temperature = min. or max values below *530/ (Actual Temp. (FF) + 460) Pipe ID based on schedule 80 steel. Flow Temp. 70 FF. TABLE 47 - AIR FLOW RATES AT SELECTED PROCESS PRESSURES (English) Size (inch) Density (lb/ft3) Pressure (psig) www.aalborg.com - e-mail ౧...

VORTEX IN-LINE FLOW METERS Minimum and maximum flow rates to achieve accuracy in M3/min (°C, 1.013 bar). M3/min at actual process temperature = minimum or maximum values below x 273 (actual temp (°C) + 273). Pipe ID based on schedule 80 steel. Flow Temp 0 °C. Shaded region for local remote electronics remote mounted electronics Process Temperature www.aalborg.com - e-mail El info@aalborg.com - S 845.770.3000 - fax 845.770.3010 - Toll Free in U.S.A. and Canada 1.800.866.3837

VORTEX IN-LINE FLOW METERS Flange Mounting TABLE 50 Meter Size in. Bolt diameter Wafer Mounting TABLE 51 Meter Size in. Flange Bolt Rating diameter psi www.aalborg.com - e-mail ౧ info@aalborg.com - ( 845.770.3000 - fax 845.770.3010 - Toll Free in U.S.A. and Canada 1.800.866.3837 66

ORDERING INFORMATION VORTEX IN-LINE FLOW METERS To allow us to confirm selection please return completed application data sheet found on Aalborg's web site at www.aalborg.com. Wafer - SCH 40 Wafer - SCH 80 Flange - SCH 40 Flange - SCH 80 FLUID TYPE G Gas L Liquid S Steam Select style (wafer or flange). Select meter size to match internal pipe diameter Confirm minimum and maximum flow ranges to maintain stated accuracy from liquid, steam, or air from Tables 44 to 47 are within your requirements. For other gas applications consult factory. Select fluid type. Select maximum temperature...