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SMC Networks PF3W5 Series Operation Manual

Digital flow switch (remote type sensor unit)
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No.PF※※-OMN0010-J
PRODUCT NAME
Digital Flow Switch
(Remote type sensor unit)
MODEL / Series / Product Number
PF3W5##

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Summary of Contents for SMC Networks PF3W5 Series

  • Page 1 No.PF※※-OMN0010-J PRODUCT NAME Digital Flow Switch (Remote type sensor unit) MODEL / Series / Product Number PF3W5##...

  • Page 2: Table Of Contents

    Table of Contents Safety Instructions Model Indication and How to Order Summary of Product parts Definition and terminology Mounting and Installation Installation Piping Wiring Flow Measurement Maintenance Troubleshooting Specification Specifications Characteristics graph Analogue output Dimensions Made to Order No.PF※※-OMN0010-J...

  • Page 3: Safety Instructions

    Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of "Caution", "Warning" or "Danger". They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC) and other safety regulations.
  • Page 4 Safety Instructions Caution 1.The product is provided for use in manufacturing industries. The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary. If anything is unclear, contact your nearest sales branch.
  • Page 5 Operator This operation manual is intended for those who have knowledge of machinery using pneumatic equipment, and have sufficient knowledge of assembly, operation and maintenance of such equipment. Only those persons are allowed to perform assembly, operation and maintenance. Read and understand this operation manual carefully before assembling, operating or providing maintenance to the product.
  • Page 6 Caution ■Do not touch the terminals and connectors while the power is on. Otherwise electric shock, malfunction or damage to the product can result. ■Do not touch the piping or its connected parts when the fluid is at high temperature. It may lead to burnt.
  • Page 7 ●Product handling Installation Tighten to the specified tightening torque. If the tightening torque is exceeded the mounting screws, brackets and the product can be broken. Insufficient torque can cause displacement of the product from its proper position and the looseness of the mounting screws. (Refer to "Mounting and Installation"...
  • Page 8 Wiring Do not pull the lead wires. In particular, never lift a product equipped with fitting and piping by holding the lead wires. Otherwise damage to the internal parts can result, causing malfunction or disconnection from the connector. Avoid repeatedly bending, stretching or applying a heavy object or force to the lead wire. Repetitive bending or tensile stress can cause the sheath of the wire to peel off, or break the wire.
  • Page 9 Environment Do not use the product in an environment that is constantly exposed to the splash of water. Otherwise failure or malfunction can result. Take measures such as using a cover. Do not use the product in an environment where corrosive gases or fluids could be splashed. Otherwise damage to the product and malfunction can result.
  • Page 10 Adjustment and Operation Connect a load before turning the power supply on. Do not short-circuit the load. When the product load has a short circuit, generated over current lead to cause the damage of the product. Supply the power when there is no flow. The product is compulsory turned off for 3 seconds after the power is supplied.
  • Page 11 Handling of flow adjustment valve When flow is adjusted with the flow adjustment valve, do not apply excessive force to rotate it. This can damage the valve mechanism. When fixing the valve of the flow adjustment valve, do not apply excessive force to rotate the fixing knurl. This can damage the knurl and valve mechanism.

  • Page 12: Model Indication And How To Order

    Model Indication and How to Order ●Metal piping -11- No.PF※※-OMN0010-J...
  • Page 13 ●Polyvinyl chloride piping -12- No.PF※※-OMN0010-J...
  • Page 14 Lead wire With M8 connector and lead wire With M8 connector and no lead wire Bracket Without bracket With bracket With flow adjustment valve Options/Part number If an option is required independently, order using the following part number. Option Part number Remarks ZS-40-K Taptite screw for PF3W504/520 (3 x 8), 4 pcs.

  • Page 15: Summary Of Product Parts

    Summary of Product parts Body DC(+) NC/Analogue output (temperature) DC(-) Analogue output (flow rate) Element Description Connector Connector for electrical connections. Lead wire with M8 connector Lead wire to supply power and transmit output signals. Piping port Port to connect the fluid inlet at IN and fluid outlet at OUT. Bracket Bracket for mounting the product.

  • Page 16: Definition And Terminology

    ■Definition and terminology Terms Meaning Outputs a value proportional to the flow rate. When the analogue output is in the range Analogue output 1 to 5 V, it will vary between 1 to 5 V according to the rate of flow. The same for analogue output of 4 to 20 mA.

  • Page 17: Mounting And Installation

    Mounting and Installation Installation Use the product within the specified operating pressure and temperature range. Proof pressure could vary according to the fluid temperature. Check the characteristics data for operating pressure and proof pressure. Mounting Never mount the product in a location where it will be used as a support. Mount the product so that the fluid flows in the direction indicated by the arrow on the side of the body.

  • Page 18: Installation

    ■Installation Bracket mounting (PF3W504/520/540) Mount the product (with bracket) using the mounting screws supplied (M4 x 4 pcs.). For models with flow adjustment valve attached, fix using 8 mounting screws. Bracket thickness is approx. 1.5 mm. Refer to the outline dimension drawing (page 41) for mounting hole size.
  • Page 19 Direct mounting (PF3W504/520/540) Mount using the self tapping screws (nominal size: 3.0 x 4 pcs.) for installation. For models with flow adjustment valve attached, mount using 8 self tapping screws. The tightening torque must be 0.5 to 0.7 Nm. Refer to the outline dimension drawing (page 41) for mounting hole dimensions.

  • Page 20: Piping

    ■Piping When connecting piping to the product, a spanner should be used on the metal piping attachment only. Using a spanner on other parts may damage the product. In particular, do not let the spanner come into contact with the M8 connector. The connector can be easily damaged.
  • Page 21 Caution The product body is made of resin. The installation and piping of the product must satisfy the following requirements. This may cause damage, breakage and/or water leakage of the product. •No load should be directly applied to the product. •Do not install piping to the product with a misalignment.
  • Page 22 How to adjust the flow rate (when a flow adjustment valve is mounted) (1) Rotate the knob of the valve to adjust the flow rate to the target value. (2) Be sure to confirm that there is no fluid leakage generated after adjustment. (When fluid leakage is generated, open and close the valve several times for re-adjustment, and confirm that there is no fluid leakage.) (3) Tighten the lock ring to fix the valve as necessary.

  • Page 23: Wiring

    Blue Flow analogue output (1 to 5 V, 4 to 20 mA) Black : When using the lead wire with M8 connector included with the PF3W5 series. Tighten the connector by hand. Examples of Internal Circuit and Wiring 1 to 5 V / 4 to 20 mA output type...

  • Page 24: Flow Measurement

    Flow Measurement Measurement mode The mode in which the flow is detected and the flow indicator flashes, and analogue output is operating. : Green: Flashes once. PF3W5□-□-1 (Analogue 1 to 5 V type: Without temperature sensor) Flashes twice. PF3W5□-□-2 (Analogue 4 to 20 mA type: Without temperature sensor) Flashes three times.

  • Page 25: Maintenance

    Maintenance How to reset the product after a power cut or when the power has been unexpectedly removed The output condition also recovers to that before the power cut or de-energizing, but may change depending on the operating environment. Therefore, check the safety of the whole system before operating the product. -24- No.PF※※-OMN0010-J...

  • Page 26: Troubleshooting

    Troubleshooting Troubleshooting Applicable Flow sensor: PF3W5 series If an operation failure occurs with the product, use the chart below to find out the cause of problem. If a cause applicable to the failure cannot be identified and normal operation can be recovered by replacement with a new product, this indicates that the product itself was faulty.
  • Page 27 Fault Detail Possible cause Item to check Recommended action The indicator Check if the brown wire DC(+) and blue does not turn Incorrect wiring Correct the wiring. wire DC(-) are connected correctly. Foreign matter (1) Confirm whether foreign matter may We recommend a filter with has entered or got enter.
  • Page 28 Error indication function Error Name LED display Type Troubleshooting The applied flow rate is above Flow rate upper Adjust flow to within the approx. 110% of maximum rated limit is exceeded rated flow range. flow rate. POWER indicator: Green is ON FLOW indicator: Red is ON Outside the Adjust the fluid...

  • Page 29: Specification

    Specification ■Specifications Specifications of body (Metal attachment) Model PF3W504 PF3W520 PF3W540 PF3W511 PF3W521 1 Applicable fluid Water and ethylene glycol solution with a viscosity of 3 mPas(3 cP) or less Detecting method Karman vortex Rated flow range 0.5 to 4 L/min 2 to 16 L/min 5 to 40 L/min 10 to 100 L/min...
  • Page 30 Model PF3W504 PF3W520 PF3W540 PF3W511 PF3W521 Flow sensor 195 g 245 g 395 g 705 g 875 g only With temperature 270 g 320 g 515 g 840 g 1060 g sensor With flow adjustment 295 g 345 g 595 g Weight valve With...
  • Page 31 Specifications of body (Vinyl chloride piping) Model PF3W511 PF3W521 1 Applicable fluid Water and ethylene glycol solution with a viscosity of 3 mPas(3 cP) or less Detecting method Karman vortex Rated flow range 10 to 100 L/min 30 to 250 L/min Fluid temperature 0 to 70 C (No freezing and condensation)
  • Page 32 ●Applicable fluids of vinyl chloride piping tube The material and fluids compatibility check list Chemical Compatibility Ammonium hydroxide 3 Isobutyl alcohol 12 ○ Isoproply alcohol Hydrochloric acid 2 ○ Concentration 30% or less (Except fuming sulfuric acid) ○ Hydrogen peroxide Concentration 5% or less Nitric acid 2...

  • Page 33: Characteristics Graph

    ■Characteristics graph Measurable range of ethylene glycol aqueous solution (Reference value) -32- No.PF※※-OMN0010-J...
  • Page 34 Flow characteristics (pressure loss) PF3W504 PF3W520 PF3W540 PF3W511 (Metal attachment) PF3W521 (Metal attachment) -33- No.PF※※-OMN0010-J...
  • Page 35 PF3W511 (Vinyl chloride piping) PF3W521 (Vinyl chloride piping) -34- No.PF※※-OMN0010-J...
  • Page 36 Operating pressure and proof pressure PF3W504/520/540 PF3W504S/520S/540S PF3W521 (Metal attachment) PF3W511 (Metal attachment) PF3W511/521 (Vinyl chloride piping) -35- No.PF※※-OMN0010-J...
  • Page 37 Straight inlet pipe length and accuracy (reference value) Metal attachment The smaller the piping size, the more the product is affected by the straight piping length. Fluid pressure has almost no effect. The smaller the flow rate, the less the product is affected by the straight piping length. The straight piping length shall be 8 cm or longer in order to maintain ±3%F.S.
  • Page 38 PF3W521 (Metal attachment) -37- No.PF※※-OMN0010-J...
  • Page 39 Vinyl chloride piping Fluid pressure has almost no effect. The straight piping length shall be 11 cm or longer in order to maintain ±3%F.S. of the specification. PF3W511/521 (Vinyl chloride piping) -38- No.PF※※-OMN0010-J...
  • Page 40 Flow characteristics of the flow rate adjustment valve PF3W504S PF3W520S PF3W540S -39- No.PF※※-OMN0010-J...

  • Page 41: Analogue Output

    ■Analogue output Analogue output (Flow) (PF3W504/520/540) Voltage output 1.5 V Current output 4 mA 6 mA 20 mA (PF3W511) Voltage output 1.4 V Current output 4 mA 5.6 mA 20 mA (PF3W521-12/14) Voltage output 1.8 V Current output 4 mA 7.2 mA 20 mA (PF3W521-U30)

  • Page 42: Dimensions

    ■Dimensions PF3W504/520/540/511 Basic type Symbol Piping port size Model 2.7 depth 14 PF3W504 45.6 40.6 15.2 13.6 2.7 depth 12 PF3W520 3/8, 1/2 45.6 40.6 15.2 13.6 2.7 depth 12 PF3W540 1/2, 3/4 53.6 48.6 19.2 16.8 3.5 depth 14 PF3W511 3/4, 1 62.6...
  • Page 43 PF3W521 Basic type Symbol Piping port size Model 39.5 3.5 depth 14 PF3W521 76.6 71.6 28.5 41.5 27.5 43.5 -42- No.PF※※-OMN0010-J...
  • Page 44 PF3W504/520/540/511/521 (With temperature sensor) Temperature sensor Symbol Model PF3W504--T PF3W520--T PF3W540--T PF3W511--T PF3W521-□-□T PF3W521-F12-□T PF3W521-F14-□T -43- No.PF※※-OMN0010-J...
  • Page 45 PF3W504/520/540 (With flow adjustment valve) Basic type and flow adjustment valve Symbol Q: Number of rotations Model 2.7 depth 10 19 PF3W504S 63.6 (Max. 68.6) 70.2 58.5 13.6 6 turns 2.7 depth 10 19 PF3W520S 63.6 (Max. 68.6) 74.2 62.5 13.6 6 turns 2.7 depth 10...
  • Page 46 PF3W504/520/540 (With temperature sensor and flow adjustment valve) Basic type and flow adjustment valve and temperature sensor Symbol Model PF3W504S--T 81.2 69.5 67.5 PF3W520S--T 85.2 73.5 71.5 PF3W540S--T 105.5 -45- No.PF※※-OMN0010-J...
  • Page 47 PF3W511-U25/PF3W521-U30 (Vinyl chloride piping) Piping port 3.5 depth 14 32 25 A 57.6 3.5 depth 14 38 32 A 71.6 28.5 60.5 27.5 Bracket dimensions Piping port 25 A -46- No.PF※※-OMN0010-J...
  • Page 48 Dimensions of lead wire with M8 connector (ZS-40-A) -47- No.PF※※-OMN0010-J...

  • Page 49: Made To Order

    Made to Order ●Change the seal material of the wetted parts to EPDM. Refer to page for details of how to order. ●Change the material of the piping port to brass. Refer to page for details of how to order. : Not applicable to the vinyl chloride piping type.
  • Page 50 Revision history A: Add the product model. B: Contents are added. C: Contents are added. D: Contents revised in several places. E: Contents are added. F: Contents are added. G: Contents revised in several places. H: Contents are added. I: Contents revised in several places.[March 2017] J: Contents revised in several places.

This manual is also suitable for:

Pf3w504Pf3w521Pf3w520Pf3w540Pf3w511

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