Mass Flow Meter and Controller

Transcription

1 ass Flow eter and Controller for Gases measuring monitoring analysing asuring range: 0-10 m N /min N /min ccuracy: ±1.5% f.s. pmax 35 bar; tmax 50 C nalogue output: 0-5 V or 4-20 m Digital display ypass measuring system laminar flow KOOD companies worldwide: RGENTIN, USTRI, EGIU, CND, CIE, CIN, CZECI, FRNCE, GERNY, GRET RITIN, INDI, INDONESI, ITY, YSI, EXICO, NETERNDS, POND, SINGPORE, SOVKI, SPIN, SWITZERND, TIND, US, VENEZUE, VIETN KOOD essring Gmb Nordring D ofheim/ts. +49(0) Fax +49(0) E-ail: info.de@kobold.com Internet: odel: S FC 23

2 ass Flow eter odel: S Fields of application The KOOD S model mass flow meter makes very precise measurements of the mass flow rate of gases in different measuring ranges from 0-10 m N /min to N /min nitrogen. The operation of the meter is based on the calorimetric principle. For indication of 98 % of the actual flow, the response time is 2 s. The meter may be installed in any position. In contrast with most volumetric flowmeters, no temperature or pressure correction is required. This means that the S model is ideally suited for almost every gas flow application. Typical industrial applications are process control, laboratory measuring tasks, OE applications, gas indication panels, leakage and filter monitoring. The S is available either with analogue output only, or in addition with digital indication. The digit CD display is infinitely rotatable through 180. Glass-fibre-reinforced nylon or stainless steel may be used in the manufacture of wetted parts. Seal materials is FP (Kalrez or Neoprene upon request). The S model may be operated with V DC (24 V DC optional). S-5100, S-5105, S-5000 or S-8100 are recommended as power supplies. Typically, a 0-5 V DC (or 4-20 m optional) analogue signal is available as output signal. This allows recording, data storage, and control functions to be implemented. Design Tilting indicator ay be tilted through 180, 9 adjustments connector 9 Pin» D«Sub-type, signal 0-5 V DC or 4-20 m optional nalogue output ains plug Input voltage 12 V DC or 24 V DC Pipe unions possible with 1 4 FNPT or 1 4" Swagelok connections Direct indication of mass flow rate No temperature or pressure correction needed Flow meter body Wetted parts either nylon or steel Digital display shows the mass flow rate in m N /min or N /min. (other units upon request) Zero-point and span potentiometers adjustable from outside easuring tube aminar flow bypass comes in 20 ranges from 0-10 m N /min to /min Theory of operation The medium flows through the bypass measuring system. The resulting differential pressure between P1 and P2 causes a small amount of gas to flow through the overhead measuring tube. The separation ratio is constant. Two resistance temperature detectors (RTD elements) transferring a constant amount of heat to the gas stream are mounted on the measuring tube. Under flow conditions, the gas molecules absorb and transport the heat away. This gives rise to a temperature difference between the two detector coils, which causes a change in resistance in the detector coils, whereby R1 <> R2. The electronics converts the signal for indication. The temperature difference increases as the flow increases. Special advantages Direct mass flow measurement No pressure or temperature correction needed arge measuring range Negligible pressure loss ay be fitted in any position igh degree of repeatability nalogue output 0-5 V DC, Option 4-20 m easuring tube design RTD coils Flow diagram 2 coils easuring tube m 1 P 1 P 2 Constant heat transfer m m 2 aminar flow bypass 24

3 ass Flow eter odel: S Technical details Field of application: suited only for dry, oil-free gases easuring accuracy: ±1.5% f.s. (with calibrated performance characteristics, otherwise observe pressure and temperature coefficients) Option: ±1 % f.s. (only to m N /min measuring range with stainless steel case) Standard calibration: mbar abs., 0 C option: to customer specification Temperature coefficient: 0.15% f. s. / C Pressure coefficient: 0.3% f. s. / bar Repeatability: ± 0.5% f. s. Response time (within % of measuring range): 2 s until 98 % of actual flow rate is indicated ax. medium, and ambient temperature: 50 C ax. operating pressure: Nylon: 10 bar Stainless steel: 35 bar Installation position: any Gas density: 1 x 10-4 m / s e (Nylon) 1x10-7 m / s e (st. steel case) Wetted parts: 5 % either glass-fibre-reinforced nylon or stainless steel material no Seals: FP (others upon request) Supply voltage: V DC, 24 V DC optional : inear 0-5 V DC (load min Ω) Option: 4-20 m (load max. 500 Ω) diagram PIN No. function 1 No connection 2 Flow rate signal ground 3 0 to 5 V DC flow rate signal 4 + mains supply (12 or 24 V DC ) * 1 * External display signal 6 External display ground 7 ains supply ground 8 nalogue output 4 to 20 m ground 9 nalogue output 4 to 20 m signal * 1 Devices powered with 24 V DC only, when the 24 V-feature is built in, otherwise damage may be caused by overvoltage! * 2 Do not connect if the device is already supplied from the mains socket. Dimensions Case (Stainless steel and nylon) Case (Stainless steel) Case (Stainless steel) without indication without indication without indication UNC-2 () 4 X UNC-2 () 6 X 1 () UNC-2 () 6 X 1 ()

4 ass Flow eter odel: S Order details nylon version (example: S V2 0) easuring range for N 2 ax. pressure loss with display odel with counter without display Voltage supply 0-20 m N /min S-1002 S-1102 S m N /min S-1003 S-1103 S m N /min S-1004 S-1104 S m N /min S-1005 S-1105 S m N /min 0-1 N /min 0-2 N /min 0-5 N /min 0-10 N /min S-1006 S-1007 S-1008 S-1009 S-1010 S-1106 S-1107 S-1108 S-1109 S-1110 S-2006 S-2007 S-2008 S-2009 S = 1 4 NPT fem. C2 = Swagelok 1 4" 00 = 12 V DC V2 = 24 V DC 0 = 0-5 V DC = 4-20 m 0-20 N /min 25 mbar S-1011 S-1111 S N /min 47 mbar S-1012 S-1112 S N /min 88 mbar S-1013 S-1113 S-2013 on customer specification S-10XX S-11XX S-20XX Order details stainless steel version (example: S-3001 C1 V2 0) easuring range for N 2 ax. pressure loss Case size with display odel with counter without display Voltage supply 0-10 m N /min S-3001 S-3101 S m N /min S-3002 S-3102 S m N /min m N /min S-3003 S-3004 S-3103 S-3104 S-4003 S-4004 C1=Swagelok 1 8" m N /min S-3005 S-3105 S-4005 C2=Swagelok 1 4" m N /min 0-1 N /min S-3006 S-3007 S-3106 S-3107 S-4006 S N /min S-3008 S-3108 S N /min S-3009 S-3109 S N /min 105 mbar S-3010 S-3110 S-4010 C2=Swagelok 1 4" 00 = 12 V DC 0 = 0-5 V DC 0-15 N /min 105 mbar S-3011 S-3111 S-4011 V2 = 24 V DC = 4-20 m 0-20 N /min 40 mbar S-3012 S-3112 S-4012 C2=Swagelok 1 4" 0-30 N /min 60 mbar S-3013 S-3113 S N /min 80 mbar S-3014 S-3114 S-4014 C4=Swagelok 1 2" N /min 105 mbar S-3015 S-3115 S N /min S-3016 S-3116 S N /min S-3017 S-3117 S-4017 C4=Swagelok 1 2" N /min 140 mbar S-3018 S-3118 S N /min N /min 140 mbar 140 mbar S-3019 S-3020 S-3119 S-3120 S-4019 S-4020 C4=Swagelok 1 2" on customer specification S-30X S-31X S-40X C1 / C2 / C3 on customer specification S-30X S-31X S-40X C2 / C3 / C4 on customer specification S-30X S-31X S-40X C3 / C4 ccessories: connector power supply odel S-5100 S-5105 S-5000 Input 230 V C 230 V C 110 V C 12 V DC /1.9 W 24 V DC /1.9 W 12 V DC /1.9 W When placing an order, please specify detailed service conditions (type of gas, flow rate, pressure, temperature etc.). 26

5 ass Flow eter odel: FC Fields of application In addition to accurately measuring the gas flow rate, it is also necessary to maintain a constant flow rate with varying inlet or outlet pressures in many processes. Previously this has been achieved by having separate flow meter, electronic controller and valve, we can now combine these functions. The new model FC mass flow controller is a compact device composed of mass flow meter, controller and valve. The user is thus provided with a controlling system that maintains a constant flow rate over a wide range, independent of variations in pressure and temperature. Theory of operation The medium flows through the S mass flow meter, which measures the actual flow rate. The control electronics compares the measured value with the setpoint value. When deviations occur, the control electronics outputs an altered actuating signal to the built-in proportional valve which changes the passage opening, thereby maintaining a constant flow rate. The desired flow rate (setpoint value) may be adjusted with a built-in potentiometer or via an external 0-5 V DC (4-20 m optional) signal. Technical details Field of application: suited only for dry, oil-free gases easuring accuracy: ±1.5% f. s. (with % of flow rate range) Repeatability: ±0.25% f. s. Temperature coefficient: 0.8% f. s. / C Pressure coefficient: 0.07 % f. s. / bar Response time (within % of measuring range): 1 s until 63 % of actual flow rate is indicated ax. medium and ambient temperature: 50 C ax. medium pressure: Nylon: 10 bar Gas density: ambient: 1 x 10-4 m/s Valve: not suitable as shut-off valve aterial: case: 10 % glass-fibre-reinforced nylon Swagelok: stainless steel seal: FP Control range: 2-100% of measuring range (valve closes below 2 % ) Supply voltage: 24 V DC : 0-5 V DC (load min Ω) 4-20 m (load max Ω) Control signal: 0-5 V DC or 4-20 m, adjustable Order details nylon version (example: FC ) easuring range for N 2 in. required diff. pressure with display odel without display 0-10 m N /min 0-20 m N /min 0-50 m N /min m N /min m N /min m N /min 0-1 N /min 0-2 N /min 0-5 N /min 0-10 N /min 0-20 N /min 0-30 N /min 0.55 bar 0.55 bar 0.55 bar 1.00 bar 1.38 bar 1.38 bar FC-5101 FC-5102 FC-5103 FC-5104 FC-5105 FC-5106 FC-5107 FC-5108 FC-5109 FC-5110 FC-5111 FC-5112 FC-5201 FC-5202 FC-5203 FC-5204 FC-5205 FC-5206 FC-5207 FC-5208 FC-5209 FC-5210 FC-5211 FC N /min 1.38 bar FC-5113 FC N /min 1.38 bar FC-5114 FC-5214 on customer specification FC-51xx FC-52xx 00 = 1 4 NPT fem. C1 = Swagelok 1 8" C2 = Swagelok 1 4" K1 = 6 mm compression fitting 00 = 0-5 V DC V4 = 4-20 m ccessories: connector power supply odel S-8100 Input 230 V C 24 V DC /6 W When placing an order, please specify detailed service conditions (type of gas, flow rate, pressure, temperature etc.). 27

6 ass Flow eter odel: FC Dimensions (mm) FOW "C" "" "" 1 8" Swagelok "" 29 "" 186 "C" " Swagelok NPT