Principles of Operation Vortices are created when a fluid passes around a bluff body as shown below. Vortices are alternately shed on each side of the body, 0 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. Aalborg s unique 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. Dual signal processing technology independently measures each vortex providing increased accuracy and turndown. Benefits RELIABLE WIDE RANGEABILITY HIGH ACCURACY No moving parts to wear or fail. Electronics can be remote mounted up to 30.5 m (00 ft). No fluid to sensor contact. No holes to clog. High flow turndown ratio up to 0:. Dual signal processing technology improves accuracy at low flows. + 0.5% of rate. Increased noise cancellation as a result of dual signal processing technology. Functional Specifications FLUID TYPES MAXIMUM PRESSURE FLUID TEMPERATURE LOW FLOW CUT-OFF HIGH FLOW CUT-OFF Steam, Gas, Liquid. F 03 bar (50 psig) with wafer mount See table 3 for flange mount. -73 F to 232 F C std./to 36 F C opt. (-00 F to 50O F std./to F F opt). Adjustable: Set @ min. per Tables 2 to 32. Adjustable: Set @ max. per Tables 2 to 32. Vortex In line Flow meter shown with wafer mounting VOLTAGE 5/230 VAC selectable or 2 VDC. FREQUENCY 50/60 Hz. OUTPUTS Analog: -20 ma DC into ohm or less. LINEAR RANGE Reynolds number of >0,000. Figure 29 WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. BULLETIN EM20050
Performance Specifications Physical Specifications ACCURACY + 0.5% of rate. MATERIALS OF CONSTRUCTION REPEATABILITY FLOW TURNDOWN RATIO RESPONSE TIME DAMPING VELOCITY RANGE AGENCY APPROVALS* + 0.25% of rate. See Tables 2 to 32. 0.5 sec. Adjustable: to 0 sec. Liq.:.32 or 0000µ to 30 ft/sec ñd 2 Steam & Gas: (/ñ)/3 to 250 ft/sec ñ= density (lb/ft3) d= pipe diameter (in) µ= viscosity (cp) FM and CSA Class Div 2 Groups B,C,D. *Designed to meet. Contact Aalborg for status of the agency approval. SHEDDER BAR ELECTRODES METERING TUBE FLANGES ELECTRONICS HOUSING 30 SS or 36 SS. 30 SS or 36 SS encapsulated ceramic. 30 SS or 36 SS. 30L SS or 36L SS. Epoxy coated aluminum. CONNECTIONS AND MOUNTINGS MOUNTING POSITION TYPICAL STRAIGHT PIPE REQUIREMENTS TEMPERATURE TAP (BY CUSTOMER) Vertical, horizontal, angle. Upstream: 20 x D. Downstream: 5 x D. Downstream: 3.5 x D. PRESSURE TAP (BY CUSTOMER) PROCESS CONNECTIONS ELECTRICAL CONNECT Upstream: 3.5 x D. ANSI Class 50 RF, RF, RF, RF, 500 RF, DIN, Wafer. 3/ FNPT. Electronic Specifications AMBIENT TEMPERATURE -2 F to 2 F C (-5 F to 0 F F). Vortex In line Flow Meter shown with flange mounting TRANSMITTER Microprocessor-based. DISPLAY Two lines, simultaneous rate and total, 6 alphanumeric characters each. FUNCTIONS OUTPUT SIGNAL Zero, span, hi cutoff, low cutoff, response time, sample time, engineering units, totalizer, data logger, RS-232 interface. -20mA output into Ohm or less, 5V TTL Pulse Output. Use or 20 gauge twisted pair shielded cable. ENCLOSURE PROTECTION NEMA X. BULLETIN EM20050 ENCLOSURE APPROVALS POWER SUPPLY UL, CSA, FM, Class I Groups B, C, D Class II Groups E, F, G, KEMA/CENELEC EEx d IIB 5 30 VDC or 5 / 230 VAC (optional). WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. 30
Flow Ranges Minimum and maximum flow rates to achieve accuracy in GPM, L/min. Pipe ID based on schedule 0 steel. SIZE (INCH) TABLE 2 - WATER FLOW RATES AT 60 F F 3/" ".5" 2" 3" " 6" min max min max min max min max min max min max min max GPM 2.6 0. 3. 67.2 7.3 6.9 2. 276.0 27.2 67.6 7.3 075.3 07.2 237.2 L/MIN 9.9 52.9 2. 25.3 27.5 62. 6.0 0.9 02.9 2337.9 79. 070. 05.9 9225. Minimum and maximum flow rates to achieve accuracy lb/hr. Pipe ID based on schedule 0 steel. TABLE 29 - SATURATED STEAM FLOW RATES AT SELECTED PROCESS PRESSURES (English) Size (inch) 3/" ".5" 2" 3" " 6" Pressure (psig) min max min max min max min max min max min max min max 0 25 50 75 00 25 50 200 250 350 00 50 500 550.7.7 6.0 9.6 22.9 25.9 2. 3. 39. 3.7.2 52.5 56.6 60.7 6.7 6.5 63.6 255.2 03.9 550.0 693.9 37.0 979. 263.9 5.7 3. 22.7 20. 2702.7 2997.5 3295. 3596..5 9.5 26.5 32.6 3. 3. 7.9 56. 65.0 72. 0.2 7.3 9.2 0.0 07.5.0 272.2 2. 67.9 9. 5.2 392.2 629. 202.2 2576.0 3050.7 3529.0 00.0 95.5 95.9 5.3 59.6 35.7.0 65. 0.0 93. 05.9 7.6 39. 59.6 7.6 96. 2.3 23.3 27. 26.0 279. 66. 0.9 69.3 225. 233. 37. 00.0 560. 6323.9 79.3 663. 9.2 036.0 220.0 356.0 6.2 59.7 0.3 09.0 33.9 56. 77.2 96. 233.2 267.0 29.9 329. 35.7 37..7. 6.3. 73.5 2760. 375.3 7.7 579.5 6695.5 636. 052.9 2533. 9.0 67.0 6.5 203.2 225.2 2573.6 33.5 79.6 23.9 299.6 39.9 396.5 0. 52. 597.5 66. 737.0 02.6 66. 92.0 9.5 07. 250.7 390.2 675.9 09.3 0609.7 2797.7 9.6 932.6 23679.9 203.5 320.2 366.6 32.3 532. 5035.9 59. 232.5 32.6 2.7 52.7 609. 690.2 766.7 90.5 00.3 6.5 23.2 397.3 507.9 65.7 72.0 2.2 355.6 6792. 0752. 60.7 7.6 2220.9 2603. 336.2 226.9 2.0 567.6 676.3 795.9 7979.5 7722.2 95729.0 526.9 70.6 962.5 2. 30.6 56. 737.6 2059.0 2357. 2639.2 290.3 366.9 37.6 366.9 3.6 3. 97.7 539. 2369. 332.7 65.3 5099.0 596. 76253.5 9339. 065.0 2006. 553. 63062.9 05.6 99.5 26966.5 3 WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. BULLETIN EM20050
In Vortex Line In Flow Line Meter Flow Meter Minimum and maximum flow rates to achieve accuracy in (kg/hr) Pipe ID based on schedule 0 steel. TABLE 30 - SATURATED STEAM FLOW RATES AT SELECTED PROCESS PRESSURES (Metric) Size (mm) 20 25 0 50 0 00 50 Pressure (bara) min max min max min max min max min max min max min max 2 6 0 22 26 2 30 32 3 36 3 0 2.5 3.9 5.9 7.7 0.6 3. 5.5 7.6 9.7 20.7 2.6 22.6 23.5 2.5 25. 26.3 5.3 6.7 66.2 23.5 395.3 55. 696.2 7.3 999. 075.9 52.9 230.2 307.9 36. 6. 53.9. 7.7.9 5.3 2.2 26.3 30.9 35.2 39.3.3 3.3 5.2 7..9 50. 52.6 7.5 2.5 273.0 00.0 69.5 96.7 3. 392.0 6.9 767.6 9.0 202.0 2.7 2277. 206. 2536.5 0.2 5.7 2.2 3.2 3.2 53.5 62.9 7.7 0... 92.0 95. 99.6 03.3 07.0.6 353.2 676.6 99.3 609.6 2222.3 23.7 39.7 069.0 30.6 693.7 500.5 5325.0 563.3 5963.7 626.0 7.0 26.2 0. 52. 7.9 9.2 0.9 9.6 33.5 0.2 6. 53.3 59.7 66.0 72.2 7. 307.7 5.6 27.6 652.2 262.6 3703.9 72.5 579.5 67.6 7.9 722.9 37.5 7.9 905.5 9939.5 076.7 3. 5.7 90.5 6.7 6.3 200.0 235.2 26. 299.3 3. 329.2 33.7 35.0 372.2 36. 399.9 69.9 39. 252.2 370.3 60.7 30. 0592. 29. 5205.0 6369. 7539. 75.9 99.5 20. 2225. 2390.0 66.3 02.2 57.6 203.3 20.9 3.3 09.6 66.9 52.2 57.5 573.3 59.7 623.6 6.3 672.6 696.6 20.7 229. 03.6 652. 076.3 6.5 50. 2253.5 263.9 252.0 30550.5 32599.0 365.9 3673.0 36.3 09.5 50.2 23.5 357. 60.6 636.3 79.0 92.0 057. 0.9 20. 29.9 356.3 2.9 6.6 523.7 57. 2722.5 5207.9 9976.5 67.3 2373.0 32769. 799.3 506. 59999.3 659.0 6922.2 7353.0 759.7 32.0 793.3 9269.7 Minimum and maximum flow rates to achieve accuracy in CFPM (.7 psia 60 F F) CFM at actual process temperature = min. or max values below *520 / ( Actual Temp.(0F) + 60) Pipe ID based on schedule 0 steel. Flow Temp. 60 F F. TABLE 3 - AIR FLOW RATES AT SELECTED PROCESS PRESSURES (English) BULLETIN EM20050 Size (inch) 3/" ".5" 2" 3" " 6" Density (lb/ft3) 0.076 0.03 0.2 0.0 0.232 0.2 0.336 0.3 0.0 0.93 0.55 0.596 0.69 0.700 0.752 0.0 0.56.6.636 Pressure (psig) 0 5 0 20 30 0 50 60 70 0 90 00 0 20 30 0 50 200 min max min max min max min max min max min max min max 2.2 2.7 3. 3.9.7 5.3 6.0 6.6 7. 7.7.2.7 9.2 9.7 0.2 0.7. 3.3 7. 5.0 60.3 75.6 06.2 36. 67. 9. 22.7 259.3 29.9 320.5 35. 3.7 2.3 3.0 73.6 50.2 657.2 963. 3.7.5 5.2 6.6 7..9 9.9 0.9.9 2. 3.7.6 5. 6.2 7.0 7..5 22. 2.5 7.9 00.3 25. 76.7 227.6 27.5 329. 30. 3.3 2.2 533. 5.0 635.0 65.9 736. 77.7 3.6 093.2 602. 9..0 2. 6. 9. 2. 2. 26. 29.2 3. 33.6 35.7 37.7 39..7 3.6 5.5 5.2 70.0 3. 26.3 30. 33. 55. 63. 0. 933. 05. 3. 30. 33. 55. 63. 0. 933. 205. 263. 3933. 5.2.5 2.5 26.9 3.9 36.5 0..9. 52.6 56.2 59. 63.2 66.5 69. 73.0 76. 90. 7. 307.5 2. 56.7 725.9 935..2 353. 562.6 77. 9.0 290.2 2399.3 260.5 27.7 3026.9 3236. 35.3 9.2 653.0 3.0.3. 60.3 7..7 9.3 00.5 09.3 7.7 25. 33..3.9 56.2 63.3 70.2 203. 262. 6. 922. 56. 62.2 2092.2 2560.3 302. 396. 396.5 32.5.6 536.7 536.7 630. 6772. 720.9 7709.0 009.3 729.9 59.2 7.9 3.7 0.9 2.2 2.2 59.0 75.0 90.2 20.9 29.0 232.9 26. 259.2 27.9 2.2 296. 353.6 56.3 97.9 605.3 202. 227.7 362.6 57.5 5272. 607.3 6902.2 777. 532.0 936.9 06. 0976.7 79.6 2606.5 32. 795.9 256. WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. 32 3. 63.0 9.6 237. 2.6 322.2 360.3 396.5 3.2 6.3 96. 527. 557.7 57. 66.2 6.2 67.7 0.5 03.2 275.0 363.5 56.9 60.9 255. 002. 99.7 3796.6 563.6 790.5 9337. 2. 2303.3 27.3 26725.2 2572. 309. 39653. 523.2
Minimum and maximum flow rates to achieve accuracy in M 3 /min ( F C,.03 bar). M 3 /min at actual process temperature = minimum or maximum values below x 273 (actual temp ( F C) + 273). Pipe ID based on schedule 0 steel. Flow Temp 0 F C. TABLE 32 - AIR FLOW RATES AT SELECTED PROCESS PRESSURES (Metric) Size (mm) 20 25 0 50 0 00 50 Density (kg/m3).293.93 2.56 3. 5.2 6.39 7.67.95 0.22.5 2.77.05 5.32 6.6 7. 9.5 22.9 26. Pressur e (barg) 0 0.5 2 3 5 6 7 9 0 2 3 7 20 min max min max min max min max min max min max min max 0.05 0.07 0.09 0. 0. 0.6 0. 0.20 0.2 0.23 0.25 0.27 0.2 0.30 0.3 0.33 0.37 0..2.9 2.5 3. 5.07 6.33 7.59.6 0.2.3 2.6 3.9 5.7 6.3 7.70.96 22.75 26.5 0.09 0.2 0. 0. 0.22 0.26 0.29 0.32 0.35 0.3 0. 0. 0.6 0.9 0.5 0.5 0.6 0.67 2.0 3.. 6.25.33 0.0 2..55 6.62.70 20.77 22.5 2.92 27.00 29.07 3.5 37.37 3.59 0.22 0.29 0.35 0.6 0.55 0.6 0.73 0.0 0. 0.95.02.09.5.2.2.3.5.67 5.2 7.7 0.35 5.9 20.6 25.7 30.92 36.06.20 6.3 5. 56.62 6.76 66.9 72.05 77.9 92.6 0.0 0.37 0. 0.5 0.76 0.92.07.2.3.6.5.70..92 2.02 2.3 2.23 2.5 2.7.69 2.97 7.26 25.2 3.39 2.96 5.53 60.0 6.67 77.2 5.0 9.37 02.9.5 20.0 2.65 5.35 0.06 0.3.0.3.7 2.07 2.0 2.7 3.00 3.2 3.55 3..06.30.5.77.99 5.63 6.2 9. 29.0 3.69 57.90 77. 96.32 5.5 3.75 53.96 73.7 92.3 2.59 230. 250.02 269.23 2. 36.0 03.7.. 2.2 2.9 3.6.9.72 5.23 5.72 6.9 6.6 7.07 7.9 7.90.30.69 9. 0. 33.92 50.66 67.39 00.5 3.3 67.77 20.2 23.70 26.6 30.63 335.09 36.55 02.0 35. 6.9 502.0 602.79 703. 3.27.27 5.6 6.75.7 9. 0.70.6 2.96.0 5.03 6.02 6.9 7.90. 9.69 22.2 2.6 76.6.76 52.66 22.7 30.2 30.09 55.90 53.7 607.52 63.33 759. 3.95 90.76 96.57 062.3 3.9 365.62 593.05 ANSI Flange Pressure - Temperature Ratings. Maximum Pressure in psig. Ambient Temperature Range for Electronics TABLE 33 - FLOW METER PRESSURE RATING TEMP. F F MATERIAL -00 to 00 200 00 500 30L SS/36L SS 50# RF 230 95 75 60 5 0 30L SS/36L SS # RF 505 55 5 30 360 30L SS/36L SS # RF 200 05 90 25 765 720 30L SS/36L SS # RF 500 500 360 20 5 00 30L SS/36L SS 500# RF 500 500 500 500 500 500 33 WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. BULLETIN EM20050
TABLE 3 Flange Mounting BULLETIN EM20050 Meter Size Flange Rating Bolt diameter Bolts I.D. O.D. W H in. psi in. no. in. in. in. in. 3/ 50 500 50 500.5 50 500 2 50 500 3 50 500 50 500 6 50 500 /2 5/ 5/ 7/ 7/ /2 5/ 5/ /2 3/ 3/7 -/ -/ 5/ 5/ 5/ 5/ 3/ 3/ -/ 5/ 3/ 7/ -/ -3/ 3/ 7/ -/ -/2 2 2 2 2 Wafer Mounting 0.72 3.75.625.625 5.25 5.25 0.957.25.75.75 5.75 5.75.50 5.00 6.25 6.25 7.00 7.00.937 6.00 6.50 6.50.50.50 2. 7.50.25.25 9.50 0.50 3.26 9.00 0.00 0.75.50 2.25 5.76.00 2.50.00 5.00 5.50 5. 6.25 6.25 6.3 6.63 6.63 7.5 7.5 6.63 7.3.25.25 6.75 7.50.00.25.00.25 9.00 0.25.25 2.00 0.50 2.00 3.75 6.25 0.25 0.25 0.375 0.375 9.95 0.27 0.27 0.76 0.76 0.35 0.9 0.9.35.35 0.75.25.25 2.25 2.25.60.9.9 2.60 3.0 2.37 2.7 3.25 3.62 3.93.3 5.06 5. 6.3 6.65 Meter Size Flange Rating Bolt diameter TABLE 35 Bolts I.D. O.D. W H in. psi in. no. in. in. in. in. 3/ 50 50.5 50 2 50 3 50 50 6 50 /2 5/ 5/ /2 5/ 5/ /2 3/ 3/ 5/ 5/ 5/ 5/ 3/ 3/ 5/ 3/ 7/ 3/ 7/ 2 2 0.72 2.370 2 9.00 0.957 2.70 2 9.20.500 3.500 2 9.60.937.250 2 0.00 2. 5.97 2 0.60 3.26 6.997 2.5.37 5.76.72 3 3.25 WWW.AALBORG.COM - E-MAIL : INFO@AALBORG.COM - PHONE 5.770.0 - TOLL FREE IN U.S.A. AND CANADA.00.66.337 - ORANGEBURG N.Y. U.S.A. 3