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No.LV50***-OMQ0004-B

Internal Circuit and Wiring examples

Analog output type

LFE

□

J

□□□

Analog output type

LFE

□

K

□□□

Analog output 1 to 5 V
Output impedance 1 K

Ω

Analog output 4 to 20mA
Max. load impedance 600

Ω

Brown DC(+)

Black NC

White OUT2

Blue DC(-)

DC24V

Main c

ircuit

Load

Analog output

Brown DC(+)

Black NC

White OUT2

Blue DC(-)

DC24V

Main c

ircuit

Load

Analog output

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Содержание LFE####

Страница 1: ...Doc No LV50 OMQ0004 B Product Electromagnetic Type Digital flow switch Model Series Product No LFE SMC Corporation ...

Страница 2: ... Summary of product parts 13 Definitions and terminology 14 Mounting and Installation 15 Installation 16 Piping method 17 Wiring 18 Maintenance 20 Troubleshooting 21 Specifications 22 Table of Specifications 22 Applicable Fluids 23 Characteristics Chart 24 Analogue output 27 Dimensions 28 ...

Страница 3: ...should also continuously review all specifications of the product referring to its latest catalog information with a view to giving due consideration to any possibility of equipment failure when configuring the equipment 2 Only personnel with appropriate training should operate machinery and equipment The product specified here may become unsafe if handled incorrectly The assembly operation and ma...

Страница 4: ...replacement parts Please consult your nearest sales branch 2 For any failure or damage reported within the warranty period which is clearly our responsibility a replacement product or necessary parts will be provided This limited warranty applies only to the SMC product independently and not to any other damage incurred due to the failure of the product 3 Prior to using SMC products please read an...

Страница 5: ...can result Do not Do not operate the product outside of the specifications Do not use for flammable or harmful fluids Fire malfunction or damage to the product can result Please check the specifications before use Do not Do not use in an atmosphere containing flammable or explosive gases Fire or an explosion can result The product is not designed to be explosion proof Do not Do not use the product...

Страница 6: ...n can result Insufficient supply voltage may not drive a load due to a voltage drop inside the product Verify the operating voltage of the load before use Do not exceed the specified maximum allowable load This may cause damage or shorten the lifetime of the product Data stored by the product is not deleted even if the power supply is cut off Write limit 1000000 cycles Data duration 20 years after...

Страница 7: ...he piping should be flushed out by air before connecting the piping to the product Failure or malfunction may result Ensure the flow direction of the fluid is aligned with the flow direction indicated on the product label before installation and piping Avoid piping in which the piping size of the IN side of the switch changes suddenly If the piping size is reduced sharply or there is a restrictor ...

Страница 8: ...n applying fluid from the top to the bottom leading to operation failure There should not be a problem as long as the fluid passage is completely filled with fluid 2 When the product is mounted vertically place the display perpendicular to the floor to place the electrodes on the right and the left to prevent bubbles from occurring After installation the flow direction can be changed by setting Re...

Страница 9: ...the product Do not perform wiring while the power is on Otherwise damage to the internal components may result causing malfunction Do not route wires and cables together with power or high voltage cables Route the wires of the product separately from power or high voltage cables to prevent noise and surge from entering the product Confirm proper insulation of wiring Poor insulation interference wi...

Страница 10: ...sures against lightning strikes in the system Mount the product in a location that is not affected by vibration or impact Failure or malfunction may result Do not use the product in the presence of a magnetic field Malfunction can result Do not let foreign matter such as wire debris get inside the product In order to avoid failure and malfunction do not let foreign matter such as wire debris get i...

Страница 11: ...s of each setting refer to page 22 to 55 of this Operation Manual During the initial setting and flow setting the product will switch the measurement output with the condition before setting Confirm the output has no adverse effect on machinery and equipment before setting Stop the control system before setting if necessary Do not touch the LCD during operation The display can vary due to static e...

Страница 12: ...00L min 3 5 200L min Output Specifications Symbol OUT1 OUT2 J NPN Analog 1 to 5V K NPN Analog 4 to 20mA Piping port size Rated flow range Symbol Port size 1 2 3 3 3 8 Yes 4 1 2 Yes 6 3 4 Yes 8 1 Yes Thread type Symbol Description NIL Rc N NPT F G LFE Option Symbol Lead wire Bracket NIL Yes 1 2 Yes Yes 3 Yes ...

Страница 13: ... wire With lead wire and M12 connector Bracket None With bracket Accessories Part numbers If an accessory is required order using the following part number Option Product No Remarks Weight With lead wire and M12 connector LFE 1 A3 Lead wire length 3 m Approx 175 g ...

Страница 14: ...2 connector This is a cable that supplies power to the product and receives output Piping port For piping connections Connected to the fluid inlet at IN and to the fluid outlet at OUT Bracket This is a mounting bracket used to install the product With lead wire and M12 connector 4 pins Option Connector Piping port OUT Piping port IN Bracket Option ...

Страница 15: ...nalog output is 1 to 5 V F S 5 V 1 V 4 V Reference 1 F S 4 V 1 0 04 V I Instantaneous flow The flow passing per unit of time If it is 10 L min there is a flow of 10 L passing through the device in 1 minute M Measured fluid The fluid s that the product can measure Operating fluid temperature Range of fluid temperature that can be measured by the product O Operating pressure range The pressure range...

Страница 16: ...ndicated by the arrow on the side of the body Check the flow characteristics data for pressure loss and the straight inlet pipe length effect on accuracy page 63 to determine inlet piping requirements Do not sharply reduce the piping size Piping port and the metal part of the body are grounded to DC blue line Do not use the power supply with positive ground When multiple sensors are used in parall...

Страница 17: ... to the valve manifold drawing for dimensions Page 67 Direct mounting Mount the product with the screw stated below Thread type Nominal thread size Tightening torque Tapping screw 3 0 32 0 03 Nm Refer to the outer dimensional drawing page 67 for the diameter and depth of the mounting screw holes The self tapping screws cannot be reused Mounting screw 4 pcs ...

Страница 18: ...attachment 3 8 24 mm 1 2 28 mm 3 4 35 mm 1 41 mm Tighten to the specified torque for piping The tightening torque for connection threads is shown in the table below Nominal thread size Appropriate tightening torque Rc NPT 3 8 22 to 24 Nm Rc NPT 1 2 28 to 30 Nm Rc NPT 3 4 28 to 30 Nm Rc NPT 1 36 to 38 Nm If the tightening torque is exceeded the product can be broken If the tightening torque is insu...

Страница 19: ... is connected for use switching noise will be superimposed and it will not be able to meet the product specifications This can be prevented by inserting a noise filter such as a line noise filter and a ferrite element between the switch mode power supply and the pressure switch or by using a linear power supply instead of a switch mode power supply 1 DC polar indication 2 OUT2 3 DC 4 OUT1 1 DC Bro...

Страница 20: ...pe LFE J Analog output type LFE K Analog output 1 to 5 V Output impedance 1 KΩ Analog output 4 to 20mA Max load impedance 600 Ω Brown DC Black NC White OUT2 Blue DC DC24V Main circuit Load Analog output Brown DC Black NC White OUT2 Blue DC DC24V Main circuit Load Analog output ...

Страница 21: ...n unexpectedly removed The settings of the product are retained from before the power cut or de energizing The output condition also recovers to that before power cut or de energizing but may change depending on the operating environment Therefore check the safety of the whole installation before operating the product ...

Страница 22: ...onnected in the wrong direction Confirm whether the mounting direction of the product corresponds to the flow direction Make the mounting direction correspond to the flow direction Insufficient water supply Confirm whether the fluid path is full Fill up the fluid path There are bubbles in the fluid path Check there is no air bubble in the tank Change the layout of piping to prevent air bubbles fro...

Страница 23: ...impedance 1 kΩ min Analogue output Current output Output current 4 to 20 mA Max load impedance 600 Ω Power supply voltage DC24 V 10 Current consumption 42mA or less Load current is not included Enclosure rating IP65 Ambient temperature range 0 to 50o C No condensation or freezing Environm ental Ambient humidity range Operation Storage 35 to 85 RH No condensation Standards CE marking RoHS Material ...

Страница 24: ...tio which shows how easily the electricity flows 2 If insulating material gets stuck inside of the piping it may cause an error Remove the foreign material stuck inside of the piping with a brush for washing test tubes so that internal rubber piping will not be damaged 3 If conductive materials such as metal get stuck to the interior surface in the piping the switch may malfunction Remove the fore...

Страница 25: ...E2 0 0 005 0 01 0 015 0 02 0 5 10 15 20 Fl ow rat e L m i n P ressurre l oss M P a 0 0 005 0 01 0 015 0 02 0 20 40 60 80 100 Fl ow rat e L m i n P ressure l oss M P a LFE3 0 0 005 0 01 0 015 0 02 0 50 100 150 200 Fl ow rat e L m i n P ressure l oss M P a Pressure loss MPa Flow rate L min ...

Страница 26: ... piping length shall be 5 times 5D or more of the piping size to satisfy and achieve the stable measurement Straight pipe length mm Model D 5 D LFE1 11 55 LFE2 21 105 LFE3 27 135 Measurement condition Port size Measurement Tap water LFE1 3 8 inch Pressure 0 2 MPa LFE2 3 4 inch LFE3 1 inch IN side Straight pipe length OUT side Change of accuracy F S Straight pipe length ...

Страница 27: ... S Operating pressure range When fluids with high temperature are used the operating pressure range will be reduced Operate within the range mentioned above The proof pressure is double the operating pressure range Stability F S Response time s Operable range Pressure MPa Fluid temperature o C ...

Страница 28: ...og output Flow Analog output A B C Voltage output 1 V 1 1 V 5 V Current output 4 mA 4 4 mA 20 mA Rated flow L min Model Minimu m Maximu m LFE1 0 5 20 LFE2 2 5 100 LFE3 5 200 Flow rate Maximum rated flow Minimum rated flow Output ...

Страница 29: ... 73 100 106 41 6 1 6 115 106 Model M N O P Q R S T U Bracket weight LFE1 3 48 39 4 6 12 11 5 52 28 2 5 depth 5 5 2 Approx 45g LFE1 4 48 39 4 6 12 11 5 52 28 2 5 depth 5 5 2 Approx 45g LFE2 6 62 53 4 6 9 5 14 56 38 2 5 depth 5 5 2 6 Approx 70g LFE3 8 62 53 4 6 3 5 20 68 43 2 5 depth 6 5 2 6 Approx 70g Bracket thickness is approx 1 6mm Note The electrical entry for lead wire with M12 connector does ...

Страница 30: ... 29 No LV50 OMQ0004 B Dimension of the cable with M12 connector lead wire LFE 1 A3 4 Black Blue 3 White 2 1 Brown ...

Страница 31: ...nda Chiyoda ku Tokyo 101 0021 JAPAN Tel 81 3 5207 8249 Fax 81 3 5298 5362 URL http www smcworld com Note Specifications are subject to change without prior notice and any obligation on the part of the manufacturer 2013 SMC Corporation All Rights Reserved ...

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