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TheLFW10 series temperature transmitter isasensor specially designed for industrial applications.Itis specially designed for lightning surge，electrostatic discharge，group pulse，pressure resistance,etc.,and hasstrong anti-interference ability.There are five installation methods:wall mounted,airpipe/water pipe, split，and clamp.Three output modes of current, voltage,and thermal resistance areoptional. Strong onsite trial installation capability.Spring screws and terminal posts are designed forquick installation. It can bewidely used in computer rooms,HvAC,buildings, storageand otherplaceswhere temperature measurement and control are required.
LFW10 OrderRefNo
| LFW10-2 | A412 | ||
| ABC |
| A B C | ||||
| Model | ATemperatureoutput | BTemperature range C Probe length(LFW102/103) | ||
| LFW10-1=Wall Mounted Temperature Transmitter | V10=0~10VDC(3-wire) | 0=Null | 0=65MM | |
| LFW10-2=DuctType Temperature Transmitter | A4=4~20mA(2-wire) | 1=0~50°℃ | 1=100MM | |
| LFW10-3=Water Pipe Type Temperature Transmitter | V5=0~5VDC(3-wire) | 2=-20~60°C | 2=200MM | |
| LFW10-4=Split Type Temperature Transmitter | 0=PT1000,±0.2°C@0°C 8=Others(Customerspecified) | 3=150MM | ||
| LFW10-5=Clamp Type Temperature Transmitter | 1=PT100,±0.2°C @0°C | 8=Others(available on request) | ||
| 2=NTC20K,±0.3°C@25°C | ||||
| 6=NTC10K,±0.3°C@25℃ | ||||
| Specification | ||||
| General | Value | |||
| Sensor | High-precisionthermal resistance,see selectiontable (resistance outputtype)/PT100,ClassA (analog output type) | |||
| Output | Resistance value,please refer to the selection table and thermal resistance indexing table 4~20mA or0~10VDC,0~5VDC | |||
| Thermal Resistance | Pleasecheckthe selectiontableand thermalresistance indexing table | |||
| Accuracy | Typical 0.2~0.5C@0/25C,see Order Reference No.±0.3C@25C,see Temperature Accuracy Curvefordetails | |||
| PowerSupply | Voltage type15~35VDC/24VAC±20% | Current type 18.5~35VDC (RL=500Ω)8.5~35VDC(RL=0Ω) | ||
| Output Load | (Analog output type)≤500Ω(Current type),≥2kΩ(0~5V),≥3kΩ(0~10V) | |||
| Housing Material | PC housing, stainless steel probe (6mm) and casing | |||
| Working Temperature | -40~70C,0~95%RH(Non-condensing) | |||
| Protection Grade | Ip65 | |||
LFW20 Armored temperature Transmitter
PARAMETRICCURVE
Dimensionin:mm
①Pressureresistancecharacteristics
The pressure that protective tube withstand changes with the tube length (see the figure below)
P(PSI) P(MPa)
5000 35
4300 30 A Medium temperature T=50°C
3600 25 B Medium temperature T=400°C
2900 20 A
2100 15
1400 10
700 5 B
0 1 150 5
L (mm) 200 250 300 350 500
LFW20OrderRefNo
| LFW20 | A4 50 | 1 | 0 | G2 | 0 L100 | 1 | |
| A | B | C | D | E | F | G | H |
②Medium flow
Themaximummediumflowrate thatthe protective tube can withstand decreases with the increase of insertion depth (see the figure below)
V (tf/s) v (m/s)
100 301
80 25
65 20
50 15
30 10 Water T=50°C
15 5 0 一
L(mm)° 100 200 300 400 500
LFW20 Temperature Transmitter uses highperformance and highlyreliableresistors,and the proberod is integrally processed from 304 stainless steel.It has strong anti-pollution performanceand excellent mechanical strength,and can work stably for alongtime.Avariety ofinstallationsareavailable, suitable for different working conditions,and are widely used in temperature measurement at industrial sitessuch as petroleum,chemical industry,electric power, hydrology,and HVAC.
| A Temuerature | C BAccuracy | TemRaerature | D Wiring Box | FProtective | H Code End | ||||
| A4=4~20mA(2-wired) | 25= 0.25%FS | 0=0~100℃ | 0=Water-proof | G2=G1/2 male fxed thread instalation) | 0=Without | L30=30mm | L130=130mm | 0=Without cold end | |
| V10=0-10V(3-wired) | 50 =0.5%FS | 1=0~200°℃(with cold end) | G4=G1/4 male (fixed thread installation) | 1=With | L50=50mm | L200=200mm | 1=Cold end length 100 | ||
| RS=RS485/Modbus | 2=0~300°C(with cold end) | M16=M16*1.5 male (fxed thread installation) | L100=100mm | L250=250mm | X=Customized | ||||
| 0=PT100,±0.2°C@0℃ | 3=-50~150C(with cold end) | M20=M20*1.5 male (fixed thread installation) | L150=150mm | L300=300mm | |||||
| 1=PT1000,±0.2°℃@0°℃C | 4=-50~300°C(with cold end) | M27=M27*2 male (fxed thread installation) | L200=200mm | L400=400mm | |||||
| X=Customized (temperature range -50~300℃C) | K=Clamp (50.5MM) | L300=300mm | X=Customized | ||||||
Specification
| General | Value |
| Measuringmedium | Liquidorgas,etc. (compatible with contact materials) |
| Measuringrange | -50~30o℃ (see range parameterselection table fordetails) |
| Output signal | 4~20mA/0-10V/RS485/PT100/PT1000 |
| Supply voltage | 15~35VDC |
| Accuracy | 0.25%FS、0.5%FS |
| Working environment | -40~85°C、0~95%RH(No condensation) |
| Housingmaterial | Die-cast aluminum housing、304 stainless steel probe rod and casing |
| Protection level | Ip65.Note:this protection level refers to the level achieved after the electricalconnectionis complete |
LFW21
Integrated temperature Transmitter
LFW21integrated Temperature Transmitter usesa highresolution and high-precision temperature sensor as the measuring element. The amplifier circuit is located ina304 stainless steel housingto convert the sensor signal into an analog signal output. This product is widely used in temperature measurement at industrial sitessuch as petroleum,chemical industry,electric power, hydrology, etc.
PRESSURERESISTANCECHARACTERISTICS
Dimension in :mr
MEDIUMFLOW
The pressure that protective tube withstand changes with the tube length (see the figure below)
Themaximummedium flow_rate that theprotective tube canwithstand decreases with the increase of insertion depth (see the figure below)
P(PSD) P(MPa)
5000 351
4300 30 A: medium temperature T=50°C
3600 25 B: medium temperature T=400°C
2900 20 1
2100 15
1400 10
700 5 B
0 0150 200 250 300 350 500
1（=m）
v(tf/s) （204号 { ~ v ~ } ( { m / s } ) 100 301 80 25 Water: temperature T=50°C 65 20 50 15 30 10 15 5 0 0 100 200 300 400 500
LFW21OrderRefNo
| ATemperature BTemperature | A B E F CInstallation Method DProtective EProbe Length(excluding thread)F Display | |||||
| Output | Range | IntegratedTypeZ=DirectInsertType Tube IntegratedType | ||||
| A4=4~20mA(2-wire) | 0=0~100℃ | G2=G1/2 male (fixed thread installation) | 0=without | L30=30mm | L130=130mm | 0=without |
| V10=0-10V(3-wire) | 1=0~200℃ | G4=G1/4 male (fixed thread installation) | 1=with | L50=50mm | L200=200mm 1=with | |
| 0=PT100,±0.2°C@0°C | 2=-50~50°C | M20=M20*1.5 male(fixed thread installation) | L100=100mm | L250=250mm | ||
| 1=PT1000,±0.2°C@0℃C | 3=-50~100°C | K=Clamp (50.5MM) | L150=150mm | L300=300mm | ||
| 4=-50~200℃C | L200=200mm | L400=400mm | ||||
| X=Customized(temperature range-50~200°C) | L300=300mm | X=Customized | ||||
| Specification | X=Customized | |||||
| General | Value | |||||
| Measuring medium Measuringrange | Liquid orgas,etc.(compatiblewith contactmaterials) | |||||
| Output signal | -50~200℃ (seeOrderRef.No.) | |||||
| Supply voltage | 4~20mA/0-10V/PT100/PT1000 | |||||
| Accuracy | 15~33VDC | |||||
| Working environment | 0.5%FS -40~85°C、0~95%RH(No condensation) | |||||
| Shellmaterial | 304stainlesssteel probe rod and casing,ABS Hirschmann connector | |||||
| Protection level | Ip65(without display).IP54(with display) Note:The above protection level refers to the level achieved | |||||
| aftertheelectricalconnectioniscomplete. | ||||||
| LFW21 | A4 | 0 | G2 | 0 | L100 0 | |
| A | B | C | D | E F |
LFG101 Wall-mountedCarbon MonoxideTransmitter
WIRINGINSTRUCTIONS
| RS485 digital output type wiring | ||
| powersupply | red | positivePower |
| black | negative power | |
| communication | green | 485-A |
| white | 485-B | |
Dimension in:mm
| Voltage/Current Analog Output Type Wiring | ||
| power supply | red | positive Power |
| black | negative power | |
| communication | green | Voltage/Current Output Positive |
| white | Voltage/Current Output negative | |
LFG101 Wall-mounted Carbon Monoxide Transmitter useselectrochemical principle to detect carbon monoxide in theair,with good selectivityand stability Three output modes of current, voltage and RS485 are optional, wide voltage power supply and power supply ant-reverse connection protection,It issuitable for carbon monoxide gas monitoring in indoor air quality
LFG101SeriesOrderRefNO
| LFG101-1A4 | detection,airconditioners,airpurifiers,underground parking lotsandotheroccasions. | |
| AB | ||
| A Range | B Output | |
| 1=500ppm V0=0~5V | ||
| 2=1000ppm V10=0~10V | ||
| A4=4~20mA | ||
| RS=RS485/Modbus | ||
Specification
| General | ||||
| Output | Value 4~20mA(3-wire) | 0~5V(3-wire) | 0~10V(3-wire) | RS485(4-wire) |
| Working Voltage | 10-30Vdc | 10-30Vdc | 16-30Vdc | 10-30Vdc |
| WorkingTemperature | -10°℃~50°℃ | |||
| Working Humidity | 15%~90%RH | |||
| Work pressure | 1atm(Standard Atmospheric Pressure)±10% | |||
| Measured Concentration | 0-500ppm/0-1000ppm | |||
| Accuracy | ±5%F.S@25℃ | |||
| Responsetime(T90) | ≤15s | |||
| IP grade | Ip6x | |||
| Service life | >5years | |||
LFG103
Indoor carbon Monoxidetransmitter
The LFG103 indoor carbon monoxide transmitter uses a high-performance electrochemical sensor to measure the concentration of carbon monoxide in the environment,with rapid response,stable performance and high accuracy,wide power supply range,perfect overvoltage and reverse connection protection.it has current & voltage or RS485 output signal,configurable relayaction point,and has independentcontrol/alarm function. This product can be widely used in HVAC systems,kitchen restaurants,workshops,underground
LFG103OrderRefNo
| parking lots, etc. | LFG103-3 1V D R | ||||
| A B C D | |||||
| ARange | B Output C Display | DRelay | |||
| 1=100ppm | IV=4~20mA&0~10V D=With display | R=1xSPDT | |||
| 2=250ppm 3=400ppm | RS=RS485/Modbus N=Without display | N=Norelay | |||
| Specification | |||||
| General Value | |||||
| Sensor | Electrochemical sensor with a typical lifetime of 5 years | ||||
| Range | 0~100ppm/0~250ppm/0~400ppm | ||||
| Accuracy | ±5%FS | ||||
| Response Time(T90) | ≤60s | ||||
| PreheatTime | 2min | ||||
| PowerSupply | 15~36VDC/24VAC±20% | ||||
| Output Mode | 4~20mA&0~10V RS485 | ||||
| Relay | 1xSPDT3A/30VDC3A/250VAC | ||||
| Working Environment | 0~50°C&15~90%RH(non-condensing)(continued)/-10~60C&0~95%RH(non-condensing)(Intermittent) -10~60oC(long termstorage:5~30oC(Within6 month)) | ||||
| StorageTemperature | Ip30 | ||||
| DegreeofProtection | |||||
| Shell Material | PC | ||||
LFG201 Wall-mounted Carbon DioxideTransmitter
| Dimension in:mm WIRING INSTRUCTIONS | |||||||||
| RS485 digital output type wiring | red | Voltage/Current Analog Output Type Wiring | |||||||
| power supply | red black | positive Power | power supply black | positive Power | |||||
| green | negativepower 485-A | communication | |||||||
| green | negativepower Voltage/Current Output Positive | ||||||||
| communication | white | 485-B | white | Voltage/Current Outputnegative | based onthe fact that different gases have differen absorption capabilities for infrared lightina specifi band.Itmeasures the concentration of themeasurec gas by measuring the degree of infrared ligh absorption. Compared with electrochemical sensors, i | ||||
| LFG102SeriesOrderRefNO LFG102 - 2 A4 A B | reverse connectionprotection.Itissuitable for indool airquality detection,air conditioners.air purifiers | ||||||||
| vegetable greenhousesand other occasions to measur carbon dioxide gas. | |||||||||
| A Range | B Output | ||||||||
| 1=2000ppm | V0=0~5V | ||||||||
| 2=5000ppm | V10=0~10V | ||||||||
| 3=10000ppm A4=4~20mA | |||||||||
| RS=RS485/Modbus | |||||||||
| Specification | |||||||||
| General Value | |||||||||
| Output | 4~20mA(3-wire) | 0~5V(3-wire) | 0~10V(3-wire) | RS485(4-wire) | |||||
| Working Voltage | 10-30Vdc | 10-30Vdc | 16-30Vdc | 10-30Vdc | |||||
| WorkingTemperature | -10℃~50℃ | ||||||||
| Working Humidity | 0-80%RH(no condensation) | ||||||||
| Accuracy | 0-2000PPM/0-5000PPM/0-10000PPM | ||||||||
| MeasuredConcentration | ±(40PPm+3%Fs)@25℃ | ||||||||
| PreheatTime | 2min(available)-10min(maximum accuracy) | ||||||||
| Protection Level | Ip6x | ||||||||
| Service life | >5years | ||||||||
LFG202
Duct Carbon DioxideTransmitter
WIRINGINSTRUCTIONS
Depending on theselection,the wiring methods will be different, The following diagrams show the wiring methods of voltage output, current output,and RS485 output:
LFG202 Duct Carbon Dioxide Transmitter is based on different gases having differentabsorption capabilities for infrared light in a specific band.It measures the concentration of the measured gas by measuring the degree of infrared light absorption.Compared with electrochemical sensors,it has long life and good stability.The imported high-performance NDlR sensor is used for CO2 concentration measurement,with rapid response,stable performance and high accuracy; wide power supply range and high protection level of theshell,which canadapt to various harsh conditions on site. It can be widely used in the measurement of
LFG202SeriesOrderRefNO
| STtC. ewldely used In the measurement of 02 concentration in ducts,offices,factory LF202 - | 1 - V10 |
| orkshops,laboratoriesand otherenvironments. | A B |
| ARange | BOutput |
| 1=2000ppm | |
| V0=0~5V | |
| 2=5000ppm | V10=0~10V |
| A4=4~20mA RS=RS485/Modbus |
Specification
| General | ||||
| OutputMode | Value 4~20mA(3-wire) | 0~5V(3-wire) | 0~10V(3-wire) | RS485(4-wire) |
| Working Voltage | 10-30Vdc | 10-30Vdc | 16-30Vdc | 10-30Vdc |
| Sensor | NDIR sensor with ABC self-calibration | |||
| Average Current | ||||
| Working Temperature | 0°C~50℃ | |||
| Working Humidity | 0-85%RH(no frost) | |||
| Measure Concentration | 0-2000PPM/0-5000PPM | |||
| Accuracy | ±(40PPm+3%MV)ppm | |||
| Response Time | 2min | |||
| Protection Class | shellIP65/Probe IP30 | |||
| Electromagnetic Compatibility | EN 61326-1 | |||
| Service Life | >5years | |||
LFG203 IndoorCarbonDioxide Transmitter
LFG203 Indoor Carbon Dioxide Transmitter, based on principle the different gases have differentabsorptioncapabilitiesorinfrared light ina specific band, it measures the concentration of the measured gasby measuring the degree of infrared light absorption.Compared with electrochemical sensors it has long life and stability, Imported high-performance NDIR sensor is used for CO concentration measurement,with rapid response stable performance and high accuracy wide power supply range,small size,easy installation,ideal for indoor carbon dioxide measurement.It is widely used to measure the CO2 concentration
| LFG203 - 1- V10-D A | inenvironments such as home.office, factory |
| B C | floors,librarywarehouses,etc |
| A Range B Output | C Display |
| 1=2000ppm V0=0~5V | D=With display |
| 2=5000ppm V10=0~10V | N=Nodisplay |
| A4=4~20mA | |
| RS=RS485/Modbus | |
| General Value | ||||
| Output Mode | 4~20mA(3-wire) | 0~5V(3-wire) | 0~10V(3-wire) | RS485(4-wire) |
| Working Voltage | 10-30Vdc | 10-30Vdc | 16-30Vdc | 10-30Vdc |
| Sensor | NDIR sensor with ABC self-calibration | |||
| AverageCurrent | ||||
| WorkingTemperature | 0°℃~50°℃ | |||
| Working Humidity | 0-80%RH(no condensation) | |||
| MeasureConcentration | 0-2000PPM/0-5000PPM | |||
| Accuracy | ±(40PPm+3%MV)ppm | |||
| ResponseTime | 2min | |||
| Protection Level | Ip30 | |||
| Service Life | >5years | |||
www.lefoo.com
LFG303 Indoor dust Transmitter/Controller
LFG303 PM2.5/PM10 Indoor Dust Transmitter/ Controller uses a laser dust sensor to measure the concentration of PM2.5 or PM10 in the environment. Thesensor hasa long service life,ismaintenance-free, responds quickly，has stable performance and high accuracy. It has a wide power supply range,complete overvoltage and reverse connection protection,and can provide current and voltage or RS485 output signals.If chose the relay output,it will be equipped with a display screen and buttons to set different relay workingmodes,and with the buzzer,itcanbe realized Comprehensive independent control/alarm function; provides six-color LED indicators to visually indicate the degree of environmental pollution; is compact and easy to install; can be widely used in various commercial complexes，smart building office
LFG303 Order Ref No
| environments,hospitals，schools and other places AirLFG303- IVO -D-R | ||
| qualitymonitoring. | A B C | |
| AType | BDisplay Button | CRelay&buzzer(optional when equippedwith display button) |
| IV0=4~20mA&0~10V@PM2.5 | D=With display button | R=1xSPDT+1xbuzzer |
| IV1=4~20mA&0~10V@PM10 | N=Without display button | S=1xSPDT |
| RS=RS485/Modbus | N=No | |
Specification
| General | Value | ||||
| Sensor | Laserdust sensor,detectingparticlesize O.3~10μm | ||||
| Sensor life | Meantimebetweenfailures≥3years | ||||
| Measuring range | PM2.5:0~500μg/m3,particle size0.3~2.5μm | ||||
| Pm10:0~600μg/m3,particle size 0.3~~10μm | |||||
| Accuracy/Consistency | PM2.5:±10μg/m3@0~100μg/m3,±10%FS@100~500μg/m3,@25C | ||||
| Resolution | 1ug/m3 | ||||
| Preheattime | ≤2min | ||||
| Response time | Continuous measurement mode single response time | ||||
| Powersupply | 15~36VDC/24VAC±20% | ||||
| Output Mode | 4~20mA&0~10V RS485 | ||||
| Relay | 1xSPDT3A/30VDC3A/250VAC | ||||
| Working environment | 0~50°C&0~95%RH(no condensation) | ||||
| Storage temperature | -20~60°C&0~95%RH(no condensation) | ||||
| Displayand keys | The equipment can set parameters such as relay working mode | ||||
| LEDindicator light | Green:Good Yellow:Moderate Orange:Sensitive | ||||
| Protection level | Ip30 | ||||
| Shell material | |||||
LFG60 All-in-one air quality Transmitter
| LFG60 1- | 1 | 1 | 1 | 1 | Rs0 -D-L | ||||
| A | B | C | D | E | F | G | H | 1 |
LFG60 Al-In-One Air Quality Transmitter is used to detectavariety of air qualityparameters,including temperatureand humidity,CO2,PM2.5,PM10,VOC, formaldehyde，up to 7 parameters;optional isolated/non-isolated Rs485 output,built-in Modbus protocol,realize real-time detection of multi-point distribution data.indoor type can be equipped with display screen and keys,and the split screen can display air quality parameters. By configure communication parameters,the three-color LED indicator can be equipped to directly indicate the air quality situation;both indoor type and top suction type can configure RS485 communication address through dialing code.The product has wide power supply range andperfect overvoltage and reverse connection protection;it can be widely used in multi-parameter air quality monitoringin variouscommercial complexes, intelligent building,office environment,hotels,airports and schools.
| A Installationmethod | BTemp&RH | CC02 | DPM | EVOC | FFormaldehyde |
| 1=Indoor type | 0=N/A | 0=N/A | 0=N/A | 0=N/A | 0=N/A |
| 2=Top suction type | 1=T&RH | 1=CO2 | 1=PM2.5&PM10 | 1=VOC | 1=HCHO |
| G Output | HDisplaybutton(for IndoorType) | I Indication light(for IndoorType) | |||
| RS0=Non-isolated RS485 RS1=lsolation type of RS485 | D=With display button | N=Withoutdisplay buttons | L=With 3-color LED N=None | ||
| Temperature | Relative humidity | ||||
| Sensor | Digital temperature sensor | Sensor | Digital humidity sensor | ||
| Range | 0~50℃ | Range | 0~100%RH | ||
| Accuracy | ±0.5℃@20℃；≤±1℃@0~50℃ | Accuracy | Typical±3%RH@20℃&20 to 80%RH | ||
| Response time | 10~30S (20℃,slow flow air) | Response time | ≤10S (20℃,slow flow air) | ||
| PM2.5/PM10 | |||||
| Sensor | Laser dust sensor,detection particle size 0.3~10um | ||||
| PM2.5:0~500μg/m³,witha particle size of 0.3~2.5μm | |||||
| Range Precision/consistency | PM10:0~600μg/m²,particle size 0.3~10μm | ||||
| PM2.5:±10μg/m³@0~100μg/m²,±10%FS@100~500/600μg/m,@25℃ | |||||
| Resolution ratio | 1ug/m³ | ||||
| Response time | Continuous measurement mode with single response time | ||||
| CO2 | |||||
| Sensor | The NDiR sensor,with the ABC self-check function | ||||
| Range | 0~5000ppm | ||||
| Accuracy | (±40ppm±3%MV)ppm | ||||
| Response time (Tg0) 2min | |||||
| voC | Formaldehyde | ||||
| Sensor | Metal oxide semiconductor gas sensor | Sensor | Electrochemical-type gassensor | ||
| Range | 0~2ppm | Range | 0~1ppm | ||
| Resolution ratio | 1ppb | Accuracy | ±10%FS@25℃ | ||
| Preheating time | First power-up for 1 hour;pre-heat for 3min | Response time (T90) | |||
| 12~36VDC/24VAC±20% | |||||
| Power Supply Voltage | Isolation/non-isolated RS485 | ||||
| Output Signal Work Environment | 0~50℃&0~95% RH(no condensation) | ||||
| Storage Temperature | -20~60C &0~95% RH(no condensation) | ||||
| Display and Buttons | Indoor type can be optional | ||||
| LED pilot lamp | Indoortype can beoptional Green:good air qualityyellow:air qualityis generallyred:poorair quality | ||||
| Levels of Protection | IP30 | ||||
| Way to Install | Indoor type,Top-suction type | ||||
| Case Material | Indoor type:PC Top-suction type: ABS | ||||
| Weight | Indoor type:148g Top-suction type:235g | ||||
LFS10 Wind Velocity Transmitter
Based on heat conduction principle, the sensor probe of Air Velocity Transmitter LFS10 ismade of MEMS technology，which has the characteristics of high measurement accuracy,wide measurement range, good stabilityand strongenvironmental adaptability. Itisanideal choice forwindspeedmeasurement in
| LFS101-RS 1 D | HVAC,duct air volume measurement,processand environmental control and otherapplications. | |
| ABC | ||
| A Output | BInstallationmethod | C Display |
| V1=0~10VDC/4~20mA RS=RS485/Modbus | 1=DuctType Air Velocity Transmitter 2=SplitTypeAirVelocityTransmitter | D=with display N=without display |
| General | Value |
| Working Voltage | 24V AC/DC±20% |
| Range① | 0-10m/s,0-15m/s,0-2m/s,0-30m/s |
| Accuracy | ±(0.2m/s+3%of mv)(20°C,45%RH and 1013hPa) |
| Resolution | 0.01m/s |
| Output Mode | RS485/Modbus,0~10VDC/4~20mA(3-wire) |
| Output Load | ≤500Ω/(Current output),≥2kΩ(Voltage output) |
| WorkingTemperature | -10~60C |
| StorageTemperature | -20~80°C |
| Probe Length | 210mm(optional) |
| Display | Optional LCD display with unit display and backlight |
| Protection Level | Shell IP65,Probe IP20 |
| HousingMaterial | Shell PC,Probe Pa6 |
| Electromagnetic Compatibility | EN 61326-1 |
| Certification | RoHS, EU Electrical Safety Standards CE |
LFS11 Low air velocity Transmitter
LFS11 Low Air Velocity Transmitter is designed for accurate measurement of very lowair velocity,and still has high measurement accuracy in application where airvelocityis less than 0.15m/s.LFS11 usesa highquality hot film sensor manufactured based on MEMS technology,which has the characteristics of high measurement accuracy, good stability and strong environmental adaptability,which is ideal for laminar flow monitoring and special ventilation applications,mainly used in key environments such as medical institutions, laboratories,and pharmaceutical industry.
LFS11OrderRefNo
| A Output | B Installation method | C Display |
| VI=0~10VDC/4~20mA | 1=Duct Type Low Air Velocity Transmitter | D=with display |
| RS=RS485/Modbus | 2=SplitType LowAir Velocity Transmitter | N=without display |
Specification
| General | Value |
| Working voltage | 12-30VDC/24VAC(±20%) |
| Range? | 0-1m/s,0-1.5m/s,0-2m/soptional |
| Accuracy | ±(0.04m/s+3%ofmv)(20oC,45%RHand1013hPa) |
| Resolution | 0.01m/s |
| Outputmode | RS485/Modbus,0~10vDC/4~20mA(Voltage and current dual output) optional |
| Output load | ≤250Ω(Current mode),≥5KΩ(Voltage type) |
| Workingtemperature | -10~+60℃ |
| Storagetemperature | -20~+80°℃ |
| Probe length | 210mm(optional) |
| Display | Optional LCD display with unit display and backlight |
| Protection | IP65,IP20(Probe) |
| Sheathingmaterial | PC,PA6(Probe) |
| Certification | ROHS,EU Electrical Safety Standards CE |
LFS71OrderRefNo
LFS71 Explosion-proofair Velocity transmitter
LFS71Explosion-proof Air Velocity Transmitter is suitable for gas flow measurement in Explosion-proof environments.Itcan convert the flow rate of gas into anelectrical signal and transmit it to the control system,The range can be adjusted on-site through buttons,and the IP65 protection grade casing is used. it issuitable for energymanagement systems,VAVand fan control, environmental pollution control, smoke hood control,ovenand boiler ventilation control and
| LFS71 - 2 A | ||
| AB | ||
| A AirVelocity Range B Output Mode | ||
| 1=0~10m/s | A=4~20mA | |
| 2=0~20m/s | B=0~10VDC | |
| 3=0~30m/s | ||
| C=RS-485 4=0~40m/s(L-type pitottubesonly) | ||
| X=Customized | ||
| Specification | ||
| General | Value | |
| Medium | Air or neutral gas | |
| Range | Speed:0~10 m/s,0~20 m/s,0~30 m/s,0~40 m/s (Range can be customized.) | |
| OverVoltage | 10KPa | |
| Accuracy | ±3.0%FS(Speed>3m/s) | |
| Operating temperature CompensationTemperature | Hostmachine:-20°C~80°C;Probe:-40°C~450°C | |
| StorageTemperature | -10°C~60°C Hostmachine:-40°C~85°C | |
| Response Time | ||
| Protection Grade | 0.5s(default)/1.0s/2s/4s Ip65 | |
| Pressure Connection | ||
| Stainlesssteel 1/2" quick connection | ||
| Signal output PowerSupply@ | 4~20mA/0~10VDC/RS485 12~30VDC/24VAC±20% | |
| Power Consumption | ||
| Shell Material | ≤1.5W | |
| Communication | Cast Aluminium RS-485standard interface,ModbusRTU protocol | |
| Certificates | ||
| Explosion-Proof Grade | ROHS,CE | |
| Display | Exd IIC T6 Gb LCD digital display | |
| Weight (Approximate) | ||
| Host machine:1238g | ||
LFS72 Explosion-proof air Velocity transmitter
LFS72Explosion-proof Air Velocity Transmitteris suitable for gas flow measurement in Explosion-proof environments.Itcan convert the flow rate of gas into anelectrical signal and transmit it to the control system,The range can be adjusted on-site through buttons,and the IP65 protection grade casing is used. it is suitable for energy management systems, VAVand fancontrol,environmental pollution control,smoke hood control, oven and boiler ventilation control and other fields.
Dimension in:mm
LFS72 OrderRef No LFS72-2A AB
| A Air Velocity Range | |
| 1=0~10m/s | |
| 2=0~20m/s | |
| 3=0~30m/s | |
| C=0~10VDC/RS-485 4=0~40m/s(L-type pitot tubes only) | |
| X=Customized | |
| Specification | |
| General Value | |
| Medium Range | Air or neutral gas Speed:0~10 m/s,0~20 m/s,0~30 m/s,0~40 m/s (Range can be customized.) |
| Over Voltage | 10KPa |
| Accuracy | ±3.0%FS(Speed>3 m/s) |
| Operating temperature | Hostmachine:-20°C~80oC;Probe:-40°C~450°C |
| CompensationTemperature | -10°℃~60°℃ |
| StorageTemperature | Host machine:-40°C~85°C |
| Response Time | 0.5s(default)/1.0s/2s/4s |
| Protection Grade | Ip65 |
| Pressure Connection | Stainless steel 1/2"quick connection |
| Signal output | 4~20mA/0~10VDC/RS485 |
| PowerSupply? | 12~30VDC/24VAC±20% |
| Power Dissipation | ≤1.5W |
| Shell Material | Cast Aluminium |
| Communication | RS-485 standard interface,Modbus RTU protocol |
| Certificates | ROHS,CE |
| Explosion-Proof Grade | Exd IIC T6 Gb |
| Display | LCD digital display |
| Weight (Approximate) | Host machine:1362g |
LFLD Electromagnetic Flowmeter
FEATURES
■ Highaccuracy,Linearityand Stability.
■ Good reliability and Anti-interference performance.
■ Good pressure sealing and High intelligence.
■ No pressure loss, lower requirements for straight pipe section.
■ Good corrosion resistance and wear resistance.
■ The converter can be in the same shape or separate form with the sensor.
■ Two-way measurement system,which can measure forward flowand reverse flow.
■ Special productionprocessand high qualitymaterialsareadopted to ensure that the performance of products remainsstable fora long time.
SPECIFICATION
| Latus rectum | 10-3000mm |
| Output Signal | 4-20mA，HART, RS485 |
| Comprehensive precision | 0.5 |
| Power Supply | 220VAC，24VDC |
| Nominal pressure | 1.6MPa，1.OMPa，0.6MPa |
| Lining material | Neoprene rubber, polytetrafluoroethylene,polyammonia-vinegar rubber,polyperfluorinated ethylene propylene,PFA,ceramics,etc |
| Connecting flangematerial | Carbonsteel,stainlesssteel(304、316、316L) |
| Signal electrode form | Fixed,scraper type |
| Protection | IP65、IP68 |
| Transmission distance | Split type electromagnetic flowmeter. Thesensor and converter are connected bya signal cable, thecable length should be less than 100m |
| Peak flowrate | 15m/s |
| Electrical Connection | Terminal |
| Electrical Connection | ≥50μS/cm |
| Consumed power | |
| Environmentaltemperature | -25℃-60℃ |
| Electrode material | 316L、HastelloyB、HastelloyG、Titanium,tantalum, platinum-iridium alloy, tungsten carbide |
| Ground ring material | Stainlesssteel 1Cr18Ni9Ti |
| Number of electrodes | Standard 3 electrodes (two measuring electrodes,one impact electrode) |
| Certification | CE、ROHS |
DIMENSION
APPLICATION
■Chemical fiber,food,papermaking,sugar,miningand metallurgy,watersupplyanddrainage,environmental protection.
■Hydraulic engineering,iron and steel,petroleum, pharmaceutical,beer,wort,allkindsofdinks.
■Corn pulp,fiber pulp,syrup,lime milk,sewage,cooling rawwater.
■Drainage,salt water,hydrogenperoxide,black liquor and other conducting fluid media flow.
| Type | ||||||||||
| LFLD | Codeand description | Electromagneticflowmeter | ||||||||
| DN | 10200·· 3000 | Diameter | ||||||||
| (DN10-DN200) | ||||||||||
| (DN250-DN1000) 1.6 | ||||||||||
| 1.0 0.6 | ||||||||||
| 0.6 | (DN1200-DN2000) | Nominal pressure | ||||||||
| XX | (DN2200-DN3000) | |||||||||
| 1 Teflon(HG) | Special customized | |||||||||
| ------------- | 2 | |||||||||
| 3 | Polychloroprene rubber polyurethane | |||||||||
| 4 5 | Polyperfluoroethylene propylene | Lining material | ||||||||
| 1 | And network PFA | |||||||||
| -------------------------------------------------------------· | Stainless steeloc0Cr18Ni12Mo2T | 4 | 7 | |||||||
| 2 | The type of alloyB | 5 | titanium Platinum-iridium alloy | Stainless steel coated with tungsten carbide | Electrode materials | |||||
| 3 | The type of alloyC | 6 | tantalum | |||||||
| ========== | 1 1P65 | |||||||||
| 2 | P | |||||||||
| ----------------------------------------------- | 0 None 1 | |||||||||
| Exdm IICT4 (No acetylene)(A shape、I P65、Magnetic bond or no display) | ||||||||||
| 23 | E | |||||||||
| -------------- | ||||||||||
| 0 None | 2 | grounding electrode | 4 | Electrode scraper | ||||||
| ---=--- | 1 | grounding electrode | 3 | Inlet protection flange | mechanism | |||||
| =----------= | -=------------------- | ☆ | 12 | |||||||
| 1 85-265V | Separate type special cable with meter 10M, More than 10 M needs to be customized. | |||||||||
| 45-400Hz | ||||||||||
| ---------=-----=--------= | ||||||||||
| -----------. | 2---------------- | |||||||||
| ----------------------- | MB | |||||||||
| LB | LB Key, double line display, output standard, RS485, HART | |||||||||
| AA | AA Key, English menu, double line display, output standard, RS232 | |||||||||
| 1 | -------- | |||||||||
| LFLD-DN50 | -------- --------- 1.6 1 1 | 0 1 1 | MA | |||||||
FEATURES
LFLUGB Vortex owmeter
Highaccuracy,linearityandstability ■ Simpleandfirmstructure,nomoving parts,highreliability □ Goodreliabilityandanti- interferenceperformance. ■ Widerangeofapplications,theflowofsteam,gasandliguidcanbemeasured. ■ Smalerpressureloss,loweroperating costandmoreenergysaving
SPECIFICATION
| Path | 10-300mm | |
| Maximum flow rate | 10m/s | |
| Output signal | 420mA,HARTprotocol，Rs485 | |
| Electrical Connections | Terminals | |
| Comprehensiveaccuracy | 1. 0 | |
| Fluid conductivity | ≥5uS/cm | |
| Power supply | 220VAC、24VDC | |
| Power consumption | ≤20W | |
| Powerconsumption | 4.0MPa、2.5MPa、1.6MPa、0.6MPa | |
| Ambient temperature | -25℃~60°℃ | |
| AmbienttemperatureCarbonstell | stainlesssteel (304、316、316L) | |
| Ambient temperature | Ip65 | |
| Certification | CEROHS | |
| Path(mm) | Liquid(test medium,normal temperature water) | Gas(Test medium:20C,air under 101325Pa) | |||
| Standard | Extended | ||||
| 15 | 0.8-6 | 0.5-8 | 6-40 | 5-50 | |
| 20 | 1-8 | 0.6-12 | 8-50 | 6-60 | |
| 25 | 1.5-12 | 0.8-16 | 10-80 | 8-120 | |
| 40 | 2.5-30 | 2-40 | 25-200 | 20-300 | |
| 50 | 3-50 | 2.5-60 | 30-300 | 25-500 | |
| 65 | 5-80 | 4-100 | 50-500 | 40-800 | |
| 80 | 8-120 | 6-160 | 80-800 | 60-1200 | |
| 100 | 12-200 | 8-250 | 120-1200 | 100-2000 | |
| 125 | 20-300 | 12-400 | 160-1600 | 150-3000 | |
| 150 | 30-400 | 18-600 | 250-2500 | 200-4000 | |
| 200 | 50-800 | 30-1200 | 400-4000 | 350-8000 | |
| 250 | 80-1200 | 40-1600 | 600-6000 | 500-12000 | |
| 300 | 100-1600 | 60-2500 | 1000-10000 | 600-16000 | |
| 400 | 200-3000 | 120-5000 | 1600-16000 | 1000-25000 | |
| 500 | 300-5000 | 200-8000 | 2500-25000 | 1600-40000 | |
| 600 | 500-8000 | 300-10000 | 4000-40000 | 2500-60000 | |
APPLICATION
Paper making.sugar making,mining and metallurgy, watersupplyand drainage,environmental protection.
■Water conservancy,steel, petroleum,pharmaceuticals, variousbeverages
■Heat supply,air supply, hot steam.saturatedsteam, compressedair
| Codeand description | Type Votex flowermeter | |||||||||||||||
| LFLUGB | ||||||||||||||||
| DN | 10·100··600 | Diameter | ||||||||||||||
| ----------- | 1 304 2 316 | Flange material | ||||||||||||||
| 12 | Liqud | |||||||||||||||
| 3 | Steam 1 No temperature compensation | |||||||||||||||
| ------- | ||||||||||||||||
| With temperature compensation | Temperaturecompensation power supply | |||||||||||||||
| ============= ------- | 2 1 | |||||||||||||||
| ---- | ------------------------------- | ======= | 24VDC | |||||||||||||
| 2 3.6V 12 | ||||||||||||||||
| 4~20mA+HAirT twoemeyst | Output signal | |||||||||||||||
| --------- | 3 RS485/Modubus four wire-system | |||||||||||||||
| 45 | ||||||||||||||||
| Freqency/Pulse otput | ||||||||||||||||
| ---- ------- | ------ 12 | |||||||||||||||
| --- 2 ----- | ||||||||||||||||
| === | ||||||||||||||||
| --------- | ||||||||||||||||
| --------- --=---- | ||||||||||||||||
| ------- 2 | ||||||||||||||||
| 3 4.OMPa Customizable | ||||||||||||||||
| ----------- 1 0 | ||||||||||||||||
| ----------- -- | ||||||||||||||||
| ------------------------------ ------------- ------- ------- 二 ---------- | ||||||||||||||||
| ------- 1 1 | ||||||||||||||||
| ------- ====== 12- ------------ 1 1 1 ！ = 1 1 | ||||||||||||||||
| CT4 ------------. 1 ------. = == | ||||||||||||||||
| ------- -------- 1 | ||||||||||||||||
| LFLUGB-DN50 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 1 | Selection example |
LFLWGY
FEATURES
Turbine flowmete
+ High precision linearstability ■ Good reliabilityand anti-interference performance ■ No zero drift,stronganti-interferenceability
SPECIFICATION
| Path | 10-500mm |
| Maximum flow rate | 10m/s |
| Output signal | 420mA，HATproocol，s485 |
| Electrical Connections | Terminals |
| Comprehensive accuracy | 1. 0 |
| Fluid conductivity | ≥5uS/cm |
| Power supply | 220VAC、24VDC |
| Power consumption | ≤20W |
| Powerconsumption | 10MPa、6.3MPa、2.5MPa、1.6MPa |
| Ambient temperature | -25℃~60℃ |
| AmbienttemperatureCarbonstell | stainlesssteel (304、316、316L) |
| Ambient temperature | Ip67 |
| Certification | CEROHS |
APPLICATION
DIAMETERPARAMETER GAS
■Paper making,refine sugar,mining and metallurgy,drainage,environmental protection ■Water conservancy and hydraulic engineering,iron and steel,petroleum,Pharmaceutical,various beverages ■Petroleum,organic liquid, inorganic liquid,cryogenic fluid
| Path(mm) | Flow range (m3/h) | Minimum Alyowable Fluid | NominalPresure | Accuracy | ||
| 15 | 4-16 | -20~+100 | -20~70 | 0.6 | 16 | ±1.5% |
| 2540 | 28-20 | |||||
| 2.5 | ||||||
| 50 | 30-200 | 6.3 | ||||
DIAMETERPARAMETER LIQUiD
| Path(mm) | Flow range (m3/h) | Fluid Temperature Range (C) | Nominal Pressure (Mpa) | |||
| 0.2 | 0.5 | 1.0 | One-piece | Explosion-proof | ||
| 10 | 0.4-1.2 | 0.2-1.2 | -20~+50 | 6.3 | ||
| 15 | 12-4 | 0.6-6 | 0.4-6 | 2.5 | ||
| 25 | 3-10 | 1.2-12 | 1.2-12 | 6.3 | ||
| 40 | 8-25 | 3-30 | 3-30 | 16 | ||
| 50 | 12-40 | 5-50 | 5-50 | 6.3 | ||
| 80 | 20-100 | 16-100 | 12-120 | |||
| 100 | 50-160 | 25-160 | 20-200 | |||
| 150 | 100-300 | 50-300 | 40-400 | |||
| 200 | 200-600 | 100-600 | 80-800 | 2.5 | ||
| 250 300 | 300-1000 | 160-1000 250-1600 | 120-1200 | |||
| 400 | 400-2500 | |||||
| 500 | 600-4000 | |||||
DIMENSION
| Codeand description LFLWGY | Type Turbine Fowmeter | |||||||||||
| DN | 10·100··500 | Diameter | ||||||||||
| ------------- | 16 | |||||||||||
| 34 | Nominal Pressure | |||||||||||
| 6.3 | ||||||||||||
| 6 7 | 10 | |||||||||||
| 1 | ||||||||||||
| Flange connection 3 | ||||||||||||
| 2 | Pipe thread connection 4-20mA Two wire | Pipe Connection Method | ||||||||||
| Frequency(hrewirst | ||||||||||||
| 34 | ||||||||||||
| Power Supply | ||||||||||||
| 6 +24VDC | ||||||||||||
| 7 8-+24VDC 1 | ||||||||||||
| -20-120nisse | -20~55 -20~70 | |||||||||||
| 2 | ||||||||||||
| Shell Material | ||||||||||||
| 3------------------------ | ------------------- | 2 | Stainlesssteel and carbon steel flange | |||||||||
| -------- | 1 | One-piece | ||||||||||
| 3 Bi-directional | ||||||||||||
| = | 8 Plug-in | |||||||||||
| 0 Not explosion-proof | ||||||||||||
| 2 d Il Bt3 4 | ||||||||||||
| ib Il CT3 | ||||||||||||
| ------- 1 1.0 | ||||||||||||
| ------------------------. | == | |||||||||||
| --------------------------------------------------------· = | _------------------- | |||||||||||
| ---------------· ------------- | ||||||||||||
| ------------- | ||||||||||||
| = | ========= | |||||||||||
| --------- | -------- | |||||||||||
| LFLWGY-DN50 | 3 | 1 | 2 | 6 | 1 | 1 | 1 | 2 1 | Selection example |
SVD20 Series of inletand outletsolenoid valve with novel design,unique structure,also with excellent anti-blocking，anti-leakage performance,and arewidelyused in various types of high-grade water dispenser，RO straight drinking machine,pipeline machine, water purifyingmachine,coffee machine and other home appliances.
| Model Value | ||||
| Rated Voltage | DC12V | DC15V | DC24V | DC36V |
| Water PressureRange | 0.02MPa~0.8MPa | |||
| MediumTemperature | 0°C~75C(No freeze) | |||
| Insulation Class | F | |||
| AmbientTemperature | 0°℃~90°℃ | |||
| Ambient Humidity | ||||
| Flow Feature | >4L/min | |||
| Installation Size | 25mmx25mm | |||
| TypeofConnector | 1/4"quick connector、1/4"NPTFemale、1/4"blade、3/8"blade | |||
| Options | Other specification requirements can be consulted separately for customization | |||
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LFV18 ColdWater Inlet Solenoid Valve
The LFV18 series solenoid valve is mainly used in household electrical appliance, like washing machine,dish washing machine，water purifier and coffee machine.lt operate usingan electromagnetic solenoid coil to change the state of a valve from open to closed or vice-versa to serve the purpose of controlling liquid flow.
Specification
| General | Value | |||
| Rated Voltage | DC12V | DC24V | AC110V | AC220V |
| CoilColor | Black | Brown | Blue | Yellow |
| Water Pressure Range | 0.02MPa~0.8MPa | |||
| MediaTemperature | 0°C~70°C(No freeze) | |||
| InsulationClass | F | |||
| AmbientTemperature | 0°℃~90°℃ | |||
| Ambient Humidity | ||||
| FlowFeature | >4L/min | |||
LFV19 ColdWaterInlet Solenoid Valve
| General Value | |||||
| Rated Voltage | DC12V | DC24V | AC110V | AC220V | |
| CoilColor | Black | Brown | Blue | Yellow | |
| Water Pressure Range | 0.02MPa~0.8MPa | ||||
| MediaTemperature | 0°℃~70C(No freeze) | ||||
| InsulationClass | F | ||||
| AmbientTemperature | 0°℃~90°℃ | ||||
| Ambient Humidity | |||||
| FlowFeature | >4L/min | ||||
The LFV19 series solenoid valve is mainly used in household electrical appliance,like washing machine,dishwashingmachine,waterpurifier and coffee machine. It operate usingan electromagnetic solenoid coil to change the stateofavalve from opentoclosedorviceversa to serve the purpose of controlling liquid flow.
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LF42 Water dispensers high and low pressure switch
Lf42series pressure switch is used in water supply pressure protection of water inlet.This series include two models LF42H(high pressure protection) and LF42L(low pressure protection).LF42H is the high pressure protection switch model.If the pressure of the pressure vessel transferred reaches the setting value while the vessel is full filled with water, the switch will cut off the circuit to make the pump stop. So the pump will not be damaged. LF42L is the low pressure protection switch. If the pressure of water inlet lower than set value, RO will not work and keep dewatering, then the switch will cut off the circuit to make the pump stop.It can prevent the booster pump still working without water which may
| Model | LF42H | LF42L |
| Media | water | water |
| Pressure set range | cut off pressure:2.5bar±0.5bar cutin pressure:1.5bar±0.5bar | cut off pressure:≤0.1 bar cutin pressure:≥0.2 bar |
| Proof pressure | 18bar | 18bar |
| Durability | >40000times | >40000 times |
| Working temperature | 5~45°℃ | 5~45℃ |
| Switch type | Microswitch,nomaloe | Microswitch,nomal open |
| Electricalrating | Voltage:250VAC Current:16A | Voltage:250VACCurrent:16A |
| Terminal | 4.8*0.8blade | 4.8*0.8blade |
| Connector | A quarter fast interface | Aquarterfastinterface |
LFSV20-B
Drainage Solenoid valve
Installation and use of products
1. Before installation,make sure no impurities like dirt, copper scale and rust in the compressed air system,and the system pressure has been released for one minute.
2.Vertically installed into the pipe,the flow direction should be same as arrow in the valve shows,don't use flexible pipe without resistance to air impact in the water outlet.
3.Make sure the input power is coincident to the voltage shows in the coil.No permission to remove the coil from valve when power on,to protect coil from burning.
4.The positive pole should be connected with connection " 1 " when use DC voltage
LFSV20-B isa kind of 2/2-way solenoid valve, which is normally closed.It's used for blocking ormobilizing mediumin pipe,to discharge condensatewateraftercompressair.Themain application ofLFSV20-Bisfilter,separator, dryingmachine,airtank,drop foot,andother components of compressed air system.The drain time and interval time are adjustable.
Specification
| Model | LFSV20-B |
| Media | Water |
| Media temperature | -20~80°℃ |
| Work pressure | 0~16 bar |
| Holediameter(mm) | Φ3.0 |
| Interval time | 0.5~45min |
| Drain time | 0.5~10 sec |
| Connection type | 3/8" or1/4" isavailable |
