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FPW

Paddle wheel flow meter

The meter is made in three versions:

  • FPW 05 – Frequency signal
  • FPW 10 – Impulse / switching contact
  • FPW 20 – Impulse / switching contact / 4÷20mA

The FPW paddle wheel flow meter is a simple and inexpensive solution with undemanding installation and it is designed for continuous measurement of clean liquids, not containing solids, with flow velocities of 0.3÷6 m/sec (ideally 2÷3 m/sec).

The respective measurement is made by rotation of the paddle rotor equipped with stainless steel needles picked up by the induction sensor. Thanks to this solution, instead of using magnetic needles, fine ferrous particles do not settle down. The speed of rotational motion is proportional to the flow of the measured medium. The measuring probe is inserted in the pipeline at an adequate depth and to be turned correctly, it is provided with an arrow for medium flow direction.

The flow meter output can be connected to the display unit or to various control systems.

MAIN ADVANTAGES

  • long service life
  • wide range of applications
  • industrial construction
  • absence of magnets
  • simple installation
  • all-stainless construction
  • variability of output signals
  • very simple operation
  • very simple and prompt service
  • possibility of flow monitoring function (flow switch)
  • external magnetic field does not affect the measurement

FPW FLOW METER BODY

fpw-telo

ADAPTERS FOR INSTALLATION INTO PIPING

Průtokoměr s lopatkovým kolem FPW - fitinky

TECHNICAL DATA

  FPW 05 FPW 10 FPW 20
Power supply 12÷30 VDC 24 VDC±10% 24 VDC±10%
Input power <1 VA    
Electrical connection cable (standard 2m) connector M12x1, 4-Pin connector M12x1, 4-Pin
Measuring range 0,3÷6 m/s 0,3÷6 m/s 0,3÷6 m/s
Diameter nominal DN 10÷200 according to adapter DN 10÷200 according to adapter DN 10÷200 according to adapter
Accuracy ±3% ±3% ±3%
Repeatability ±1% ±1% ±1%
Display 2x LED 4x LED 4x LED
Outputs TTL output pulses (Imax=5 mA) pulse/switch PNP (Imax=100 mA) pulse/switch PNP (Imax=100 mA)
4÷20 mA (max. load 480 Ω)
Control 1x button 1x button
Temperature of medium 0÷80 °C 0÷80 °C 0÷80 °C
Pressure PN 25 PN 25 PN 25
Degree of protection IP 67 IP 67 IP 67
Material in contact with medium Propeller support – PVDF Propeller support – PVDF Propeller support – PVDF
Propeller shaft – SS Propeller shaft – SS Propeller shaft – SS
Propeller – PEEK+SS Propeller – PEEK+SS Propeller – PEEK+SS
O-rings – EPDM O-rings – EPDM O-rings – EPDM
Min. Reynolds number 4000 4000 4000

METER STATES DISPLAYED

Flow meter status is indicated by LEDs:

  • Green POWER (indicates the present supply voltage)
  • Orange the flow is zero or below the minimum limit
  • Red the flow is above the maximum limit
  • Blue the impulse output function (copies volumetric pulses on the output) / flow monitoring function (indicates the status of the contact according to the flow)
Průtokoměr s lopatkovým kolem FPW - LED

NASTAVENÍ MĚŘIČE

Possible settings using the button as per FPW version:

FPW 05

  • without the adjusting button, only the frequency output at TTL voltage level

FPW 10

  • switching the impulse output to the flow monitoring function or vice versa (switching point level according to the present flow upon activation)
  • decimal change in impulse constant
  • resetting to factory settings

FPW 20

  • setting the limit of current output for 20mA (as per the existing flow upon activation)
  • switching the impulse output to the flow monitoring function or vice versa (switching point level according to the existing flow upon activation)
  • decimal change in impulse constant
  • resetting to factory settings

ADAPTER FITTINGS

The inherent installation in pipeline can be carried out by direct welding/bonding for DN32÷DN200 pipes and/or one of the fitting adapter delivered to simple installation into DN6÷DN65 pipes.

Several types of adapter fittings can be used for installation of the FPW unit:

  • weld-on adapter AISI304 (DN50÷DN200)
  • threaded fittings AISI304 (DN10÷DN65)
  • PVC fittings (DN40÷DN200)
  • drill hole patterns (DN50÷DN200)
WELD-ON ADAPTER

WELD-ON ADAPTER

THREADED FITTINGS

THREADED FITTINGS

PVC FITTINGS

PVC FITTINGS

DRILL HOLE PATTERNS

DRILL HOLE PATTERNS