THE INSIDE STORY OF THE F-SERIES:

Transcription

1 BRFSERIES15E

2 THE INSIDE STORY OF THE FSERIES: Response Time < 1ms Analog Differential ressure Sensor for Real Time Measurement Analog Output = Measured Flow Many Connector Options I65 Housing ressure Compensated Option Available Venturi Style Orifice No Lead in ipe Required Low ressure Drop Available in Seven Different ipe Sizes No Moving arts Wide range of inert gases Mounts in Any osition Flow Ranges as low as 22 SCFH & as high as 2525 SCFM FUNCTIONAL DESCRITION roportionair s FSeries is a line of flow transducers designed specifically to provide real time flow measurement of compressed gasses for many demanding applications. roportionair s FSeries design utilizes differential pressure technology to sense the pressure change across an internal venturi. This differential pressure (D) measurement is fed into an onboard electronic circuit that converts the D signal into a linear analog output signal which represents the flow through the FSeries. The D sensor and circuit are completely analog to offer the fastest possible response time and eliminate digital stepping often seen in flow transducers of other technologies. 2 BRFSERIES15E * ROORTIONAIR * LET S TALK

3 roportionair s FSeries product is available in flow ranges from as low as 2 to 2SCFH and as high as 25 to 25S CFM. ipe sizes range from ¼ to 1 ½. Both NT and BS threads are available. The differential pressure technology incorporated in roportionair s FSeries flow transducer is ideally suited for rugged commercial and industrial applications. This technology allows measurements of flows from 1% to 1% of the maximum calibrated range. The benefits of real time measurement make the FSeries a must in many rapid sequence applications. For example, in the chart below, the.1% accurate thermal mass flow meter output isn't even close while the FSeries has been providing a 96% accurate signal for over four Flow Over Time seconds! This makes the real accuracy of the F 12 Series far superior in many fast paced applications. roportionair s FSeries flow transducer is rugged for today s demanding environments. It has an I65 housing, 25G rating, and its large venturi can digest contaminants and moisture. The FSeries is also insensitive to mounting position and vibration. Flow (ercent) Time (sec) Actual Flow FS eries Thermal Mass FSERIES MODELS Three models of roportionair s FSeries flow transducers are available for a variety of different applications: Regulated, ressure Compensated, and Atmosphere models. FR MODEL The FR model is a regulated flow monitor that uses only differential pressure to calculate the compressed gas flow. When the supply pressure of a compressed gas is regulated to a fixed value, FRSeries nonpressure Compensated the compressibility effect of the gas on gas density can be compensated to Output Math allow the output signal to indicate implied mass flow. Regulated pressure F MODEL The F model is a pressure compensated flow monitor. In addition to a differential pressure sensor, the F model also uses an absolute pressure sensor to measure the incoming pressure of the FSeries ressure Compensated compressed gas flow. This absolute pressure allows the F to mathematically correct the output signal for changes in gas density due to pressure. Output Math Unregulated pressure This model is used in applications where the incoming gas supply pressure either varies and cannot be regulated or when there may be an advantage to eliminating a regulator. FA MODEL The FA model is an atmosphere flow monitor that is used where the compressed gas flow is venting to atmosphere. Atmospheric pressure becomes the standard against which the D signal is FASeries Calibrated to Atmosphere compared allowing the D signal to be mathematically converted to implied Output Math mass flow. R Atmosphere LET S TALK * ROORTIONAIR * BRFSERIES15E 3

4 FSERIES GENERAL SECIFICATIONS & ERFORMANCE CHARACTERISTICS ELECTRICAL MINIMUM TYICAL MAXIMUM ower Requirement Supply Current Analog Output Voltage Current Sinking Sourcing 15VDC 1VDC 5.6mA 5.6mA 8mA 24VDC 1VDC 2mA 2mA MECHANICAL MINIMUM TYICAL MAXIMUM MAXIMUM INLET RESSURE ¹ CALIBRATED FLOW RANGE ACCURACY REEATABILITY RESONSE TIME SHOCK RATING TURNDOWN RATIO ² END CONNECTIONS (ORT SIZE) MATERIALS 3 SIA See CHART 1 +/ 4% F.S. +/.25% F.S. < 1 ms 25 G s 1 to 1 1/4, 3/8, 1/2, 3/4, 1, 11/4, 11/2 NT or BS Elastomers BunaN Manifold Aluminum anodized Transducer Silicon, Aluminum ¹ F Model with set pressure less than 1 psia, have a maximum inlet pressures less than 165 psia. ² Turndown ratio of 1:1 allows measurement 1 to 1% of flow range. Zero point is at zero flow. 165 SIA HYSICAL MINIMUM TYICAL MAXIMUM MEDIA WORKING TEMERATURE AMBIENT TEMERATURE TEMERATURE SENSITIVITY WEIGHT 1/4 3/8 1/2 3/4 1 11/4 11/2 ACTUATOR HOUSING RATING 32ºF (ºC) 32ºF (ºC).25% / ºC Relative to reference conditions of 21ºC 1.3 LBS (.59 KG) 1.7 LBS (.77 KG) 1.6 LBS (.73 KG) 1.9 LBS (.86 KG) 1.7 LBS (.77 KG) 2.85 LBS (1.29 KG) 2.85 LBS (1.29 KG) I65 122ºF (5ºC) 158ºF (7ºC) 4 BRFSERIES15E * ROORTIONAIR * LET S TALK

5 FSERIES ERFORMANCE CHARACTERISTICS Flow [% of scale] LINEARITY Output Signal [Volts] ort Size (inch) CHART 1 3/4 25 (118) 1/2 3/8 1/4 25 (12) 1 (5) 5 (24) Measured at 1psig (6.89 bar) 1 (47) 1 (47) 15 (71) 2 (94) Maximum Flow SCFM (Liters/Sec) 25 (118 ) ort Selection Based on Maximum Flow This chart shows linear characteristics of the FSeries flow monitor with a signal output of 11 volts. Characteristics would be similar for ma units. Use CHART 1 to select the appropriate port size based on your applications maximum flow. Actu al SCFM (Liters/sec) 3 (141.58) 25 (117.99) 2 ( ) 15 (7. 8) 1 (4 7. 2) 5 (2 3. 6) NONRESSURE COMENSATED 1 SI 9 SI 8 SI 7 SI 6 SI 5 SI 4 SI 3 SI This graph illustrates the effect of varying supply pressures on the flow output signal of an FR model flow transducer. This graph can be used to correct for variations in gas density due to temperature or the specific gravity of different gasses by purposely altering the supply pressure with a roportionair pressure control valve. Fixing the inlet pressure to a constant value by regulating it to one pressure produces a linearly proportional signal. 5(23.6) 1 (4 7.2 ) 15(7.8) 2( ) 25( ) 3(141.58) Flow Output Signal SCFM (Liters/sec) 14 RESSURE COMENSATED 12 This graph illustrates how effectively the F model flow transducer automatically corrects the flow output signal when the supply pressure varies over a wide range. Compare this to the results of a traditional nonpressure compensated flow transducer as shown in the NONRESSURE COMENSATED graph. 165 psia model is shown. Output Voltage (23.6) 1 ( ) 15 (7. 8 ) 2 (94.39) 2 5 (117.99) 2 Flow in SCFM (Liters/sec) Id eal 1 SI 9 SI 8 SI 7 SI 6 SI 5 SI 4 SI 3 SI LET S TALK * ROORTIONAIR * BRFSERIES15E 5

6 FSERIES TYICAL ALICATIONS RADIATOR TESTING Quick Disconnect Automotive Radiator To quickly determine that the flow passages of the radiator are adequately formed, the radiator is connected to a regulated supply and the FSeries provides immediate flow rate. COMRESSOR TESTING 1 ressure Controller Flow FASeries HBackpressure Regulator Compressor To rapidly plot compressor performance curves, a QB1 controls variable pressure while the Fseries measures the flow rate 6 BRFSERIES15E * ROORTIONAIR * LET S TALK

7 FSERIES DIMENSIONS DIMENSIONS ARE FOR REFERENCE USE ONLY Inches ORDERING INFORMATION D F R 2 N E A 1 A 1 A DIGITAL DISLAY SERIES TYE A = Atmosphere = ressure Compensated R = Regulated ressure D = Digital display BLANK = No display ORT SIZE 2 = 1/4 3 = 3/8 4 = 1/2 6 = 3/4 8 = 1 A = 11/4 B = 11/2 THREAD N = NTF B = BS OUTUT SIGNAL E = 11 VDC C = 5.62 MA Sinking S = 5.62 MA Sourcing MEDIA ¹ Set pressure is based on the TYE of the FSeries Flow Monitor: TYE SET RESSURE A psig Maximum system pressure, psia R Required regulated supply pressure, psig MAX. FLOW 5 =.55 1 = 11 1 = 11 A = Air N = Nitrogen H = Helium R = Argon C = Carbon dioxide FLOW UNITS A = SCFM B = SCFH C = SLM D = SLH SET ¹ RESSURE ELECTRICAL CONNECTION = Atmosphere 5 = 5 SI 1 = 1 SI A = 3 in, 3 FT female molded cord C = 3 Wire fly ing leads (18 ) D = 3 in male connector E = 6 in Hirshman connector G = 3 in, 6 FT female shielded cord H = 4 in Hirshman connector LET S TALK * ROORTIONAIR * BRFSERIES15E 7

8 CLOSED LOO FLOW CONTROL OTIONS FSeries flow monitor coupled to various roportion Air, Inc controls to provided closed loop flow control. FSeries with QB/SR ASSEMBL Y FLOW CONTROL ALICATIONS U TO 25 SCFM DFSeries with FQB3 FLOW CONTROL ALICATIONS U TO 3 SCFM DFSeries with FQV FLOW CONTROL ALICATIONS LESS THAN 1 SCFM roportionair products are warranted to the original purchaser only against defects in material or workmanship for one (1) year from the date of manufacture. The ex tent of roportionair's liability under this warranty is limited to repair or replacement of the defective unit at roportionair's option. roportionair shall have no liability under this warranty where improper installation or filtration occurred. All specifications are subject to change without notice. THIS WARRANTY IS GIVEN IN LIEU OF, AND BUYER HE REBY EXRESSLY WAIVES, WARRANTIES OR LIABILITIES, EXRESS, IMLIED OR STATUTORY, INCLUDING WITHOUT LIMITATION ANY OBLIGATION OF ROORTIONAIR WITH REGARD TO CONSEQUENTIAL DAMAGES, WARRANTIES OF MERCHANTABILITY, DESCRITION, AND FITNESS FOR A ARTICULAR UROSE.... WARNING: Installation and use of this product should be under the supervision and control of properly qualified personnel in order to avoid the risk of injury or death. BRFSERIES15E