VORTEX FLOWMETER (DELTA FLOWPET)

Transcription

1 VORTEX FOWMETER (DETA FOWPET) DATA SHEET FMR, M This instrument is a Karman vortex flowmeter capable of measuring the flow rate of liquid, gas, and vapor. The heavyduty detecting section made of stainless steel ensures high accuracy of the instrument. FEATURES. The total flow and instantaneous flow rate can externally be selected and monitored.. The standard is a rainproof type that can be used outdoors.. Heavy-duty stainless steel main body having the structure without moving part ensures high durability. It does not impose limitations to its mounting positions.. Remotely controllable external output (total pulse or instantaneous analog) is available. SPECIFICATIONS (Type: FMR) Item, connection Fluid Note: Plus ±0.% of full scale in case of analog output. Description 0,,,, 0,, 00mm, wafer type iquid, gas, vapor rate range See Table Permissible Fluid -0 to + C, or -0 to +00 C temperature range Environment -0 to +0 C Maximum pressure Depends on connection standard (designed pressure: MPa) Within ±% of full scale (or, for nominal diameter 0 mm, within ±% of full scale). (Note) Accuracy For liquid: FS = 8 m/s. For gas with nominal diameter 0 to 0 mm: FS = 0 m/s. For gas with nominal diameter, 00 mm: FS = 0 m/s. ength of straight pipe See Fig. Main body SCSA (for nominal diameter 0 mm, main body: SCSA, vortex source: SUS) Material Sensor 0 to mm: SUS, to 00mm: XM9 (made of super stainless steel) Mounting cylinder SCSA Transducer case Polycarbonate Mounting posture Installation site No limitation from viewpoint of accuracy Avoid site exposed to direct sunshine () Total flow: 8 digits (), (), (), or () can be selected by push button. Indicator () Instantaneous flow rate (per hour) digits rate unit [, m, g, kg, t, (normal), m (normal)], and (CD digital display) decimal point are indicated on CD. () Instantaneous flow rate (per minute) digits (Orientation of the indicator can be adjusted freely over 0.) () Resettable total flow digits * Alarm is indicated with ED (red). Battery type None Output signal Cable Power supply Structure Backup Externally energized type Battery type Externally energized type to 0 ma DC analog (instantaneous flow rate) (see Fig. oad Resistance Range); or Pulse output (open collector) (available if with indicator). Rated values: 0 V DC, 0 ma. ON voltage: V or less. Pulse width: 0 ms (correct pulse) or ms (non-correct pulse). Alarm output (H, )... Open collector. Rated values: 0 V DC, 0 ma. ON voltage: V or less. -core shielded cable ( m)... For externally energized type ithium battery unit. ife time: years (at normal temperature)... With weak battery alarm function. to V DC Rainproof type (conforms to JIS C090 protection class, IPs), non-explosion-proof type. Direct sunshine is not permissible. Parameter settings and total value are held in EEPROM EDS-a Date Aug. 0, 00

2 FMR, M CODE SYMBOS OAD RESISTANCE RANGE [Fig. ] Digit Digit Description Note FMR,0 <> 0mm mm mm mm 0mm mm mm 0 0 <Connecting flange standard> 00 Operation range JIS 0k JIS k JIS 0k 00 JIS 0k ANSI 0 ANSI 00 Note Note 0 JPI 0 JPI 00 Note Note 8 Power voltage (VDC) 8 <Modification No.> 9 <Applied fluid> For gas ( C) For liquid ( C) For gas and saturated vapor G S ( 00 C) For liquid ( 00 C) Note Note H 0 <Output signal> None (battery drive type) Non-correct pulse output Corrective pulse output to 0mA DC output Upper and lower limit alarm output Correct pulse + upper and lower limit alarm output Non-correct pulse + upper and lower limit alarm output Note ) 0 mm is not in application range. Note ) Radiator fins are provided if applied to hot gas, saturated vapor, or hot liquid. In case of saturated vapor, nominal diameter 0 mm cannot be selected. 0 oad resistance (Ω) Pressue loss [Fig. ] : 0 to 00mm Pressure loss coefficient C of liquid mm mm mm rate of liquid (m /h) rate of gas/steam (m /h) rate (m /h) mm 0mm mm 00mm Pressure loss coefficient C of gas/steam P = c ρ P: Pressure loss (mmho) ρ: Density (kg/m ) To find a pressure loss coefficient, read C value of the intersection point of the flow rate (Q) and the slant line of the nominal diameter and assign the C value to the above equation.

3 FOW RATE RANGE [Table] iquid Retain the minimum flow rate in Tables A (according to specific gravity) and B (according to viscosity), whichever is the greater. Table A (according to specific gravity) unit: m /h Minimum flow rate Nominal flow diameter mm rate Specific gravity Table B (according to viscosity) Kinematic viscosity Nominal diameter mm Viscosity unit: mm /s Minimum flow rate (m /h) Unmeasurable For hatched area, retain Table A (according to specific gravity). Gas The flow rate range is indicated in actual base. If the flow rate was given at standard status, be sure to convert it to actual flow rate and then, according to this table, determine the flow rate range or nominal diameter. Table C Table D Nominal Minimum flow rate (m /h) Maximum diameter mm (0) flow rate (m /h) Gas kind Density kg/nm Gas pressure MPa (gauge), temperature 0 C Reference: Gas viscosity Density kg/m Argon (mpa s) Air Oxygen Carbon dioxide Nitrogen Determination of minimum flow rate In Table D, find a value that is nearest to and lower than the pressure of gas desired, trace it upward in the same column, and retain the value at the intersection with the desired nominal diameter in Table C as minimum flow rate. If it is necessary to exactly determine a minimum flow rate, proceed to a calculation in the following manner. Example Suppose the fluid is air, the temperature 0 C, the pressure 0. MPa (gauge), and the nominal piping diameter mm. How can the minimum flow rate nominal diameter be found? The minimum flow rate at nominal diameter of mm at air of 0. and 0.8 MPa in Table D is, according to Table C, and 8 m /h, respectively. At a pressure of 0. MPa, therefore, the minimum flow rate is, according to interpolation, Qmin = 8+ (-8) m /h Or the minimum flow rate can be obtained upon calculating an actual density. Actual density ρ of air at 0 C and 0. MPa is: ρ =.9.0kg/m From Table C, the minimum flow rate at density of and nominal diameter of mm is m /h and, likewise, at density of, is 8 m /h. At density of.0, therefore, the minimum flow rate is, according to interpolation, -.0 Qmin = 8+ (-8) m /h - Example Suppose the fluid is carbon dioxide, the temperature to 0 C, the pressure 0.8 to. MPa, and the maximum flow rate 0 m /h (normal). How can the minimum flow rate and the applicable nominal diameter be found? First obtain the actual maximum flow rate, and then determine the nominal diameter. For calculating the maximum flow rate when the temperature and pressure have ranges, retain the higher temperature and lower pressure. Therefore, the actual maximum flow rate is: Q = 0 99m /h Therefore, the nominal diameter is mm. For obtaining the minimum flow rate, retain the lower temperature and higher pressure. From Tables C and D, the minimum flow rate at nominal diameter of mm and pressure of 0.9 MPa is 9 m /h or, at pressure of. MPa, is 8 m /h. Therefore, according to interpolation,.-. Qmin = 8+ (9-8) 8.m /h.-0.9 Note: If the calculated result has a value below decimal point, truncate it for maximum flow rate, or round it up for minimum flow rate.

4 FMR, M Saturated vapor Unit: kg/h Pressure MPa mm mm mm 0mm mm 00mm (gauge) Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Transducer integration reading unit The integration reading is in the same unit system as for flow rate. <Example> If the flow rate is in m /h, the integration reading is in m. The number of digits below decimal point is the same as for correct pulse unit. (If the value of correct pulse is or more, the decimal point will not be indicated.) Transducer correct pulse unit The present table indicates correct pulse units for volumetric flow rate. In case of fixed conversion to other than volumetric flow rate such as normal flow rate, refer to Tables A through D. Fluid iquid Gas mm Maximum flow rate m /h (non-correct pulse frequency Hz) Nominal meter coefficient /P (nominal non-correct pulse unit) Non-correct pulse output frequency Hz Q: Volumetric flow rate m /h Correct pulse unit Standard m /P 0. (.) Q 0.0. (9.8) Q 0.0 (.) 0.0. Q 0.0 (89.0) Q (.) Q 0. 8 (98.9) Q (.) Q (0.) Q (.9) 0.0. Q (.) Q 0. 9 (.) 0.8. Q (0.) Q 0. (.). 0. Q 00 (9.98) Q (Note) Note: In case of saturated vapor, multiply it by density. (Nominal meter coefficient) density kg/

5 Correct pulse unit for fixed conversion Use the following unit selection table for determining a correct pulse unit for fixed conversion to standard status (normal) flow rate or mass flow rate by multiplying the volumetric flow rate by conversion coefficient. Case Fluid Fixed conversion Use Table: Gas Conversion to standard (normal) status Table A Saturated vapor Conversion to mass flow rate Table B Gas Conversion to mass flow rate Table C iquid Conversion to mass flow rate Table D Case Calculate the conversion coefficient by:. P+0.0 Z0 Conversion coefficient = T Z (Unless particularly affected, retain Z 0/Z =.) T: Operating temperature ( C) P: Operating pressure (MPa [gauge]) Z 0: Compressibility factor at standard status Z: Compressibility factor at operating status Table A mm Conversion coefficient 0.0 to.. to.. to to.9.0 to.9.0 to to..8 to..8 to to.8.9 to.8.9 to to to to to to to to.. to.. to 0.0 Standard correct pulse unit m (normal) Case Table C mm Case Table D mm Operating fluid density kg/m 0.0 to.. to.. to to.9.0 to.9.0 to to..8 to..8 to to.8.9 to.8.9 to to to to to to to to.. to.. to 0.0 Specific gravity of liquid 0.00 to to to to.. to to to to to to..0 to.00 Standard correct pulse unit kg Standard correct pulse unit kg Case Table B mm 0 00 Saturated vapor pressure MPa 0.0 to to. 0.0 to to. 0.0 to to. 0.0 to to. 0.0 to.0.0 to. 0.0 to to. Standard correct pulse unit kg

6 FMR, M Installation procedure [Fig. ]. ength of straight pipe: Conforms to ISO No. Fuji s regulating pipe Reducer Piping status Honey vane straightener ength () of straight pipe. D: Nominal diameter. 8D D D or more D =. Remarks For nominal diameter mm or more (for details, contact us) If coaxial reducer is located upstream D or more If elbow is located upstream Elbow D or more If elbows are located horizontally upstream Fully open sluice valve Half open sluice valve Fully open Half open D or more D or more 0D or more If elbows are located vertically upstream If fully open sluice valve is located upstream If half open sluice valve, abrupt restrictor, or otherwise excessively flow disturbing objects upstream Notes. The concept is intended for Sch. pipe. Therefore, use Sch. pipe as standard.. Be sure to provide a straight pipe section of D or more downstream.. Provide pressure and temperature detectors downstream the flowmeter (figure below). -in direction to.d to.d Pressure tap Temperature tap D:. Thermal insulation procedure For thermal insulation of piping, we recommend you to adopt a simplified thermal insulation (without mortar finish) on the flowmeter mounting section for facilitating disassembly or checkup. This arrangement allows to loosen flowmeter connecting bolts without breaking the thermal insulating material covering. Arrange so connecting bolts can be loosened upon removing simplified thermal insulation material. Simplified thermal insulation (convenient if divisible) Thermal insulation of piping. Considerations regarding process conditions () Prevention of cavitation If liquid is used, so that no cavitation will occur, secure a line pressure higher than calculated by: P.0 P+.Po (MPa [abs]) where, P: Pressure loss (MPa) P 0: iquid vapor pressure (MPa [abs]) () Pulsation If the flowmeter is to be installed on a line where Roots blower, compressor, or other pulsating pressure generating instruments are mounted, it may be affected by pulsation. The allowable pulsating pressure is calculated by: Span Arrange so flange tightening nuts can be loosened. N <.ρv (kpa) 00 where, N: Pulsating pressure (kpa) ρ: Density (kg/m ) V: Minimum velocity (m/s)

7 OUTINE DIAGRAM (Unit: mm) For liquid and gas ( C max.) Nominal diameter (mm) (mm) I (mm) φd (mm) φd (mm) H (mm) -0 to + C -0 to +00 C Approximate mass (kg) -0 to + C -0 to +00 C Alarm indicator ED * Alarm indicator ED * 8 g g E s DETA A A kgtm /hmin(nomal) M ODE R ESET * No output signal. Not provided in case of battery type/type code 0th digit: 0. (Externally energized type only) Power and output cable φd H -in direction I φd

8 FMR, M OUTINE DIAGRAM (Unit: mm) For high temperature (00 C max.) of liquid, gas and vapor Nominal diameter (mm) (mm) 00 I (mm)... 8 φd (mm) φd (mm) 8 9. H (mm) -0 to + C -0 to +00 C Approximate mass (kg) -0 to + C -0 to +00 C Alarm indicator ED * Alarm indicator ED * 8 g g E s A A DETA kgtm /hmin(nomal) *No output signal. Not provided in case of battery type/type code 0th digit: 0. (When 0th digit of the code symbols is, or only) With m cable M ODE R ESET φ0 H φ0 φd 09 -in direction I φd CONNECTION DIAGRAM (with m cable) <Analog output> Analog output to 0mA SUP (Brown) COM (Green) to V DC <Correct or non-correct pulse output> 0mA SUP (Brown) SIG (Yellow) COM (Green) 0V to V DC FMR <Upper and lower limit alarm output> SUP (Brown) 0mA SIG (Gray) 0mA SIG (White) COM (Green) 0V 0V to V DC FMR (DC.V) SUP (Brown) SUP. SIG (Yellow) SIG. COM (Green) 0V Integrating meter FMM 8 FMR Polarity Wire color Description Brown SUP (and analog output) Gray SIG.... Alarm output (upper limit/lower limit) White SIG.... Alarm output (upper limit/lower limit) Yellow SIG.... Correct/non-correct pulse output Green COM Note: Analog output and pulse output or upper/lower limit alarm cannot be combined. FMR <Correct or non-correct pulse output + upper and lower limit alarm output> SUP (Brown) 0mA SIG (Gray) 0mA SIG (White) to V SIG (Yellow) DC 0mA 0V COM (Green) 0V 0V FMR

9 INTEGRATING METER (Type: FMM) OVERVIEW This instrument is a compact type CD display counter that receives pulse signal from vortex flowmeter and indicates total flow and digital instantaneous flow rate (with power supply for the oscillator built in). FEATURES. One-chip CPU mounted on this instrument has permitted many functions. Pressing pushbutton enables switching to the following display modes. q Total flow, w Zero reset total, e Instantaneous flow rate (switching between per hour display and per minute display is possible.), r Meter coefficient. This instrument has a function of a scaler and of a divider. Flush mount type Wall type. It converts input pulse signal representing flow rate into an analog signal through built-in F/I conversion circuit. (Option). Equipped with pulse output before or after the correction SPECIFICATIONS Item Display method Description CD Height of letters:.mm Pressing "MODE" switch allows the following display modes to rotate. (Mode display such as b, b, and c is displayed on the most significant and the second digit of the display window.) Display Input signal Items to be displayed Weak battery voltage alarm Trigger level Response pulse Power supply for the oscillator Types of signals Capacity ON-state voltage Pulse width Signal oad resistance Conversion accuracy Ripple Output signal Pulse Analog (option) Upper/lower limit alarm (option) Time constant Output signal Capacity ON resistance Scaler Dividing Backup function Ambient temperature Power voltage Power consumption Insulation resistance Withstand voltage Mass Case Finish color of the instrument frame Setting Mode b b c d F A Display Total flow Instantaneous flow rate Instantaneous flow rate Total flow Divided value* Meter coefficient* Number of cycle samples *: Not displayed when "SEECT" switch is turned to "0" or "8". When "SEECT" switch is turned to "" or "c", the values of the above items are displayed. The setting of "Divided value", "Meter coefficient", and "Number of cycle samples" can be changed easily by the operation on the front panel of this instrument. However, do not change them except when the change is unavoidable, because the setting has been adjusted to meet the specifications of the flowmeter combined to this instrument. **: Effectively indicated only when the input pulse has small frequency variation. "BATT" blinks. V DC hysteresis 0.8V DC 00Hz (0Hz in the case of contact input)..standard Note that it can be followed up to khz by setting the input division to /0 or /00. When the scaler value is more than, 0Hz max..v DC or V DC, 0mA, with overcurrent protection Open collector pulse, Corrective pulse (the same unit as the display), Standard or non-corrective pulse 0V DC, 0mA max..v DC max. ms, 0ms, 00ms, 0ms to 0mA DC and to V DC Current output: 0Ω max. When output voltage is short-circuited: 00Ω max. Output voltage: MΩ min. Within ±0.% of the full scale Within % of the full scale at 0% of the full scale () to 9.99Hz:.s [The value in ( ) shows the value when an internal step-up circuit is used.] Full scale puls 0 to 99.9Hz:.s 00 to 000Hz:.s Open MOS-FET 0 V AC/ V DC, 00 ma or less Digit 8 Ω or less (leakage current µa or less when OFF) Description Not resettable to 0 Per hour Per minute Resettable to 0 0 (/), (/0), (/00) to.9999 to to.9999, Adjustable in steps of Selection of the unit to be displayed: /, /0, or /00 The counter display value and setting are backed up by built-in E PROM -0 to +0 C 8 to V AC, 0/0Hz VA max. Batch power terminals and ground terminal, 0MΩ or more, 00V DC megger Batch power terminals and ground terminal, 00V AC, minute Approx. 0.kg (flush mount type), approx. 0.8kg (wall type) Resin frame and aluminum case (flush mount type), plastic case (wall type) Munsell color code N. equivalent ** ** 9

10 FMR, M CODE SYMBOS Digit Description <Power voltage> 8 to V AC 0/0Hz Input signal -wire open corrector pulse Output signal (open collector) Pulse width: Approx. ms Pulse width: Approx. 0ms Pulse Width: Approx. 00ms Pulse width: Approx. 0ms <Analog output and alarm output signal> None (Standard) Analog output ( to 0mA DC / to V DC) and upper/lower limit alarm output <Modification No.> Additional function None (Standard) With a battery for lighting the CD when power is OFF <Construction> Flush mount type Wall type FMM Digit OUTINE DIAGRAM (Unit: mm) (Flush mount type) Upper terminals BATT RESET button AARM ED* AARM ED* MODE button PANE CUTOUT DIMENSIONS min RESET AARM AARM MODE min. 0 ower terminals Mounting bracket * Only for analog/alarm output (Code symbol th digit: )

11 OUTINE DIAGRAM (Unit: mm) (Wall type) 0 Mounting hole - φ. BATT 90 8 RESET AARM AARM MODE Applied cable diameter: φ. to φ. CONNECTIONS WHEN PACING AN ORDER, SPECIFY: Category ower terminals Upper terminals Terminal No. 8 8 SUP. SIG. 0V + - (+) (-) Display FOW INPUT PUSE OUT POWER ANAOG OUT AARM OUT AARM OUT rate input Pulse output Power Grounding Current output Voltage output Alarm output Alarm output Description -wire pulse input Open collector output AC power Grounded (Earth) to 0mA DC <option> to V DC <option> Open MOS-FET <option> (non polar) Open MOS-FET <option> (non polar). Integrating meter type. Type of combined flowmeter. Unit of integration and output pulse. Kind of output signal M Correct pulse / M Non-correct pulse. Source voltage. Installation site conditions, etc. Terminal connecting screw: M.

12 FMR, M For enquiry, show us the following specifications. Fill out the required portions or make check marks in the squares. Setting item. Measured fluid. Range of flow rate*. Temperature range. Pressure range. Gravity or density * Analog full scale corresponds to maximum value. Usual Min.. Viscosity* mpa s (cp) mm /s at C. Connection 8. Correction reference* 9. Pulse signal 0. Special comment Usual Min. Usual Min. Non-correct pulse, Correct pulse Specification *: Specify vapor in terms of kg/h. *: Depending on the viscosity, the measurement could be impossible. (See flow rate range table B.) *: In case of normal flow rate, specify reference temperature and reference pressure. In case of vapor, specify reference pressure. C k m g kg t /h /min normal actual MPa [gauge] Gravity kg/m [normal] kg/m [actual] Density Flange standard mm, ", JIS K ANSI/JPI RF Reference temperature C Reference pressure MPa [gauge] Caution on Safety *Before using this product, be sure to read its instruction manual in advance. Head Office Gate City Ohsaki, East Tower, -, Osaki -chome, Shinagawa-ku, Tokyo -00, Japan Instrumentation Div. International Sales Dept. No., Fuji-machi, Hino-city, Tokyo, 9- Japan Phone: , 0 Fax: Information in this catalog is subject to change without notice. Printed in Japan