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SMC Networks LFE Series Manual
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SMC Networks LFE Series Manual

Electromagnetic digital flow switch
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3-Color Display
Electromagnetic Digital Flow Switch
Applicable fluid
Compact
The oval fluid
passage
enables the
width to be
reduced.
New
New
An insulated type
has been added.
Positive ground
Negative ground
2 types of ground are
available.
A close proximity setting is
available.
¡
Fluctuation of the
displayed value can be
reduced when the close
proximity setting function
is used.
Reduced setting time
¡
∗ Not available for the remote type
Variations
Integrated display type/Remote type
LFE1
LFE1mZ
LFE2
LFE2mZ
LFE3
LFE3mZ
LFE m
Series
Water, Water-soluble coolant
Lightweight
340
(LFE1m3)
0.5 L/min
2 L/min
Rated flow range
Display flow range
g
40
Flow range
5 L/min
10 L/min
20 L/min
Display flow range
Rated flow range
Rated flow range
RoHS
Actual size
56
mm
mm
50 L/min
100 L/min
200 L/min
Display flow range
CAT.ES100-107D

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Summary of Contents for SMC Networks LFE Series

  • Page 1 3-Color Display RoHS Electromagnetic Digital Flow Switch Applicable fluid Water, Water-soluble coolant Actual size Compact Lightweight The oval fluid passage enables the width to be reduced. (LFE1m3) An insulated type has been added. Positive ground Negative ground 2 types of ground are available.
  • Page 2 LFEm Electromagnetic Digital Flow Switch 3-Color Display Series An insulated type has been added. Marking (Blue) The ground doesn’t need to be selected when wiring. Insulated type/LFEmZ Non-insulated type/LFEm The piping port is insulated The piping port is connected to the with the power supply.
  • Page 3 LFEm Electromagnetic Digital Flow Switch 3-Color Display Series Flow direction can be 3-color/2-screen changed after installation. display ¡Default flow direction Instantaneous flow rate is displayed. (Forward direction) Customer’s flow direction ¡Flow direction can be changed after installation. The parameters below can be set. ¡Set value ¡Flow direction ¡Accumulated value ¡Line name ¡Peak/Bottom value...
  • Page 4 Flow Switch for Fluid Variations Smallest Rated flow range [L/min] Applicable Detection Enclosure ∗ settable Series Display fluid method 0 0.5 10 20 30 40 50 increment 0.1 L/min Water, 3-color Water-soluble Electromagnetic 0.5 L/min IP65 display coolant 1 L/min PF3W-Z 0.01 L/min Water,...
  • Page 5 C O N T E N T S Electromagnetic 3-Color Display Digital Flow Switch Series LFE0 Digital Flow Monitor Series 3-Color Display Electromagnetic Digital Flow Switch LFE 3-Color Display Series How to Order p. 5 ·································································································································· Specifications (Integrated Display Type) p.
  • Page 6 3-Color Display Electromagnetic Digital Flow Switch RoHS Series Integrated display type How to Order Non-insulated type Insulated type Insulated type The piping port is insulated with the power supply. Remote type monitor Non-insulated type Remote type For details, refer to page 12. The piping port is connected to the negative ground of the power supply.
  • Page 7 Series Electromagnetic Digital Flow Switch 3-Color Display For flow switch precautions, refer to the Operation Manual on the SMC website. Specifications (Integrated Display Type) LFE1 LFE2 LFE3 Model Applicable fluid * Water, Conductive fluids which do not corrode the fluid contact materials * Applicable fluid conductivity * 5 μS/cm or more (micro siemens) Detection method...
  • Page 8 Series For flow switch precautions, refer to the Operation Manual on the SMC website. Specifications (Remote Type) * Refer to page 12 for monitor specifications. LFE1 LFE2 LFE3 Model Applicable fluid * Water, Conductive fluids which do not corrode the fluid contact materials * Applicable fluid conductivity * 5 μS/cm or more (micro siemens) Detection method...
  • Page 9 Series Electromagnetic Digital Flow Switch 3-Color Display Flow Rate Characteristics (Pressure Loss) LFE1 LFE2 LFE3 0.02 0.02 0.02 0.015 0.015 0.015 0.01 0.01 0.01 0.005 0.005 0.005 Flow rate [L/min] Flow rate [L/min] Flow rate [L/min] Straight Piping Length and Accuracy (Reference Value) Accuracy change Straight piping Straight piping...
  • Page 10 Series Internal Circuits and Wiring Examples (Integrated Display Type) NPN 2 output type PNP 2 output type LFElAlll(Z) LFElBlll(Z) Brown DC (+) Brown DC (+) Load Black OUT1 Black OUT1 Load Load 24 VDC 24 VDC White OUT2 White OUT2 Load Blue DC (−) Blue DC (−)
  • Page 11 Series Electromagnetic Digital Flow Switch 3-Color Display Parts Description Body Lead wire and M12 connector (4 pins) Display Connector Piping port Piping port Description Function Allows for power supply connection by connecting to the Connector lead wire with M12 connector and performs output according to the flow rate Lead wire and The enclosure becomes IP65 when fit with a connector.
  • Page 12 Series Dimensions Integrated display type LFE1/2/3(Z) 2 x Port size 1.4 ∗ ∗1 For the integrated display type ∗ The electrical entry for the lead wire and M12 connector does not rotate and is limited to only one entry direction. Remote type LFE1/2/3(Z) Bracket thickness is approx.
  • Page 13 3-Color Display Digital Flow Monitor RoHS LFE0 Series How to Order LFE A M V C Type Option 2 Remote type monitor Without connector * When using the remote type, select Sensor connector (1 pc.) LFEmJmmm(Z) with an analog output Sensor connector of 1 to 5 V.
  • Page 14 LFE0 Series For flow switch precautions, refer to the Operation Manual on the SMC website. Specifications (Remote Type Monitor) LFE0 Model 0.4 to 24.0 L/min 2.0 to 120.0 L/min 4 to 240 L/min Display flow range (Flow under 0.4 L/min is displayed as “0.0”) (Flow under 2.0 L/min is displayed as “0.0”) (Flow under 4 L/min is displayed as “0.0”) Set flow range...
  • Page 15 LFE0 Series Digital Flow Monitor 3-Color Display Internal Circuits and Wiring Examples NPN 2 output type PNP 2 output type LFE0A LFE0B Brown DC (+) Brown DC (+) Load Black OUT1 Black OUT1 Load Load White OUT2 24 VDC White OUT2 24 VDC Gray COPY Gray COPY...
  • Page 16 LFE0 Series Parts Description (Remote Type Monitor) Main screen (2-color display) Sensor connector Output display (Status LED) Unit display Sub screen UP button SET button DOWN button Power supply/output connection lead wire Description Function Main screen (2-color display) Displays the flow value, setting mode, and error codes Displays the accumulated flow, peak/bottom value, flow direction, Sub screen and various setting values (For details, refer to page 17.)
  • Page 17 LFE0 Series Digital Flow Monitor 3-Color Display Dimensions 40.1 (7.5) Sensor connector (4P) NC/IN Power supply/output connector (5P) Front protective cover + Panel mount adapter Panel mount adapter Front protective cover Panel Waterproof seal Panel fitting dimensions Applicable panel thickness: 48 or more 0.5 to 8 mm (Without waterproof seal) 37.5...
  • Page 18 Series Function Details  Output operation  Forced output The output operation can be selected from the following: Forcing output to ON/OFF during system startup or maintenance can Output (hysteresis mode and window comparator mode) correspond- prevent system errors from occurring when checking the wiring and ing to instantaneous flow or output (accumulated output and accumu- output.
  • Page 19 Series Function Details M Power-saving mode M Analog output free range The display can be turned off to reduce power consumption (by ap- This is available for all analog output compatible products. The max. prox.10%). In power-saving mode, only decimal points blink. If any value of analog output can be any flow rate value within the rated range.
  • Page 20 Series Made to Order Please consult with SMC for detailed specifications, delivery times, and prices. Symbol Piping connection ports: Stainless steel 304 Specifications LFE1-X8 LFE2-X8 LFE3-X8 Model Fluid contact materials PPS, FKM, Stainless steel 304 Port size 3/8 (10A) 1/2 (15A) 3/4 (20A) 1 (25A) Integrated display type...
  • Page 21 Series Specific Product Precautions 1 Be sure to read this before handling the products. Refer to the back cover for safety instructions. For flow switch precautions, refer to the “Handling Precautions for SMC Products” and the “Operation Manual” on the SMC website: https://www.smcworld.com Installation Mounting Warning...
  • Page 22 Series Specific Product Precautions 2 Be sure to read this before handling the products. Refer to the back cover for safety instructions. For flow switch precautions, refer to the “Handling Precautions for SMC Products” and the “Operation Manual” on the SMC website: https://www.smcworld.com Mounting Caution 1.
  • Page 23 Series Specific Product Precautions 3 Be sure to read this before handling the products. Refer to the back cover for safety instructions. For flow switch precautions, refer to the “Handling Precautions for SMC Products” and the “Operation Manual” on the SMC website: https://www.smcworld.com Operating Precautions Fluid Warning...
  • Page 24 Series Specific Product Precautions 4 Be sure to read this before handling the products. Refer to the back cover for safety instructions. For flow switch precautions, refer to the “Handling Precautions for SMC Products” and the “Operation Manual” on the SMC website: https://www.smcworld.com Others Warning 1.
  • Page 25 These safety instructions are intended to prevent hazardous situations and/or Safety Instructions equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for ∗1) safety and must be followed in addition to International Standards (ISO/IEC) and other safety regulations.

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