LFM76 Explosion-proof differential Pressuretransmitter

Dimension in :mm

LFM76 Explosion-proof Differential Pressure Transmitter isa highaccuracyand high stability devicedesigned for explosion risk environment. t isequipped with multiple optional pressure ranges,with easy on-site adjustment through buttons. Use lp65 housing,suitable for energy management systems,HvAC,VAV and fan control,environmental pollution control, pressure and smoke hood control of static pipeline and clean room,oven pressurization, and boiler ventilation control.

LFM76OrderRefNo

Dimension in :mm

LFM77 Embeddeddifferential Pressuretransmitter

LFM77 Explosion-proof Differential Pressure Transmitter isa high accuracy and high stability device designed for explosion risk environment.It is equipped with multiple optional pressure ranges,with easy onsite adjustment through buttons.Use Ip65 housing,

LFT2000 General Type Pressure Transmitter

LFT2000 pressure transmitter is widely used in the measurement of fluid medium pressure in test systems such as fire protection,water treatment,water supply systems,air compressors,pneumatic devices,and factory automation.Adopt ceramic sensitive diaphragm with high overload capacity.lt has excellent anticorrosionand anti-wear performance,adoptsASIC technology,MEMS technology,and digital compensation And it has the characteristics of small size and low price. can be applied in various complex environment

LFT2000 Order Ref No.

LFT2010 High Accuracy Pressure Sensor

LFT2020 SanitaryFlatMembrane PressureTransmitter

LFT2020 Sanitary FlatMembrane Pressure Transmitter adopts high-performance oil-filled diffusion silicon coreThe internal special-purpose integrated circuit converts the millivolt signal of the sensor into standard voltage.current or 485 signal,which can be directly connected with computer interface card,control instrumentinteligent instrument or PLC,The process connection of the pressure transmitter is sealed by sterile chuck typediaphragm,which is widely applied in the food,dairy,chemical and pharmaceutical industries

Display Model Current/Voltage Output <br>Dimension in:mm

LFT2020 Order Ref NO

LFT2030 High Temperature Resistance PressureSensor

High Temperature Resistant Digital Display Model Current/Voltage Output <br>LFT2030 high temperature resistant pressure transmitter adopts high-performance pressure core,and the internalspecial integrated circuit converts millivolt signal of the sensor into standard voltage, current or 485 signal,whichcan be directly connected with computer interface card, control instrument, smart instrument or PLC, etcLong-distance transmission can use the current output method. It has the characteristics of small size,

LFT2050

Differential Pressure Sensor

LFT2050 Differential Pressure Sensor uses silicon piezoresistive differential pressure sensor as the core components.Through temperature compensation, digital circuit correction and signal conditioning,itthen outputs standard industrial signal.Itadopts stainless steel structure shell, with strong corrosion resistance. Featured with advanced design, perfect technology,excellent equipment, stability and reliability, the Transmitter is widely used invarious differential pressure measurement,especiallyin aviation,automobile,chemical industry，medical equipment, shipping, and etc.

DigitalDisplayModel-RS485 <br>DigitalDisplayModel-Current,Voltage

Dimensionin:mm

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LFT2060 Refrigeration PressureTransmitter

LFT2060 pressure transmitter adopts ceramic capacitor core，which is an ideal choice for refrigerant pressuremeasurement occasions. The standard 0.5-4.5V output signal, has the advantagesofwideoperatingtemperaturehigh precision，high waterproof level，and anti

LFT2080

Anti-corrosion Pressure transmitter

LFT2080 Anti-corrosion Pressure Transmitter adopts a ceramic piezoresistive core with high overload capacity,which has excellent anti-corrosion and antiwearproperties.Itadopts AS IC technology and is mainly used for water disinfection,chlorine,chemical industry,battery equipment and othermedia where the medium is strong acid, strong alkali or other highly corrosive industries,aswell aspressuremeasurement in food hygiene,medical and other industries.

Dimensionin:mm

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LFT2600 Refrigeration Pressure Sensor

LFT2600 refrigeration pressure transmitter adopts a high-performance pressure-sensing core,and with advanced circuit processing and temperature compensation technology to convert pressure changes into linear voltage signals.The product is small in size, easyto install,adoptsstainlesssteel shell for isolation and anti-corrosion,and has a wide operating temperaturerange.It is suitable for measuring gas and liquid and other media that are compatible with the materialsin contactwith it.tiswidelyapplied in the medium pressure measurement of ail conditioning,

LFT2700

LFT2700 flat flm pressure transmitter uses 316L flat fim sensor, which has the features of anti-clogging,easy to clean,can directly measure the pressure of viscous liguid, and has excellent corrosion and wear resistance.Adopt ASIC technology, digital compensation,thread connection,easy installation and maintenance, the thread connection can choose a variety of exterior structure and a variety of electrica output mode can bechosen, gauge or absolute pressure diffusion silicon flat film thread sensor can directly measure viscous medium, such as the detection system of chemical coating paint,environmental protection,coal mine,papermaking,food processing, Polyurethane equipment, oil and others.

Digital Display Model-RS485Digital Display Model-Current,Voltage

LFT2700 OrderRefNo.

Explosion-proof Digital Display Model Dimension in:mm

Dimension in:mm

LFT2800 PressureTransmitter

LFT3000

Liquid level Pressuretransmitter

LFT3000 liquid transmitter uses a high-performance pressure sensor as the measuring element to accurately measure the liquid level depth and convert it into a standard output signal through a special signal conditioning circuit to establish a linear correspondence between the output signal and the liquid depth,to achieve accurate measurement of liquid depth. The product has high precision, small size and convenient use. It can measure the liquid level height from the end of the transmitter to the liquid surface when it is directly put into the liquid. It is suitable for water level or liquid level measurement and control

LFT3000 OrderRef No

Dimension in :mm

LFT3100OrderRefNo

LFT3100 Temperature and Pressure Integrated transmitter

LFT3100 temperature and pressure integrated transmitter adopts advanced piezoresistive pressure sensor and PT-100 temperature sensor, which isconverted into a standard output signal through a special signal conditioning circuit.lt has the advantages of advanced temperature digital compensation，wide operating temperature range and full output signals. It is suitable for the monitoring of pressure and temperaturein crude food andwater treatment

LFT3200 Throw-in Type Level&Temperature PressureTransmitter

LFT32o0 temperature and liquid level integrated pressure transmitter adopts advanced piezoresistive pressure sensor and PT-100 temperature sensor,which is converted into standard output signal through special signal conditioning circuit,with advanced temperature digital compensation,wide operating temperature range,and full output signal.It is suitable for the monitoring of liquid level and temperature in crude oil, food and

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LFT6100 Digital Pressure Gauge

LFT6100 digital pressure gauge adopts highperformance oil-flled diffusion silicon core,and the circuit part adopts24-bit special AD processing chip andindustrial group MCU,which has high measurement accuracy and good stability. Adopt low power consumption design,the working current is less than 2mA,and the shutdown current is less than 5uA. Thisproduct adopts high-quality 304 stainless steel shelland joints，which has good antishockperformance.It can measure gas,water,oil and othermedia that are not corrosive to stainless steel It is suitable or pressure measurement applications such as

LFT6200 Explosion-proof Pressure transmitter

Dimension in:mm

LFT6200 pressure transmitter isan isolated explosionproof product with high cost performance.Widely used in gas and liquid pressure detection,such as water, oil, mildly corrosive liquid and gas. The product adopts 304 stainless steel pressure head, the pressure core isselected from international famousbrands,and the dedicated conversion circuit can easily calibrate its zero point and full scale.This product has the

LFT6700 OrderRef No

LFT6700 PressureTransmitter

LFT67oo is an intelligent digital pressure transmitter,suitable for real-time pressure monitoring and alarm display.Combined with the special sensor conditioning circuit,it can output the pressure signal of the standard MODBUSRTU protocol.The integrated stainless steel structure design and digital signal output havethe characteristics of small size,small drif,stable performance and corrosion resistance.Suitable for pressure measurement and monitoring in fire control,petroleum,water, chemical,environmental control and other

OUTPUTCHARACTERISTICCURVE

LEFOO

LFT221water pressure transmitter adopts plastic shell structure，high-precision pressure core, and proportional output voltage signal.This productis mainly used in the water treatment industry and has the characteristics of small size,light weight,compact structure and good stability.

·Voltage/4.75V { 1 } 4 . 7 5 \lor power supply:Vout = 0 . 3 8 ^ { \star } \mathsf { P } ^ { + } 0 . 4 7 5 （204号 ·Voltage/5V ② 5Vpowersupply:Vout= = 0 . 4 ^ { \star } \mathsf { P } { + } 0 . 5 （204 { 3 } 5 . 2 5 \lor power supply:Vout = 0 . 4 ^ { \star } \mathsf { P } + 0 . 5 2 5 Remark ·Voltage/5.25V Prepresents the current pressure,the unit is Bar

Dimension in:mm

LFT6800 digital pressure transmitter adopts highperformance ceramic core or oil-flled silicon core,with advanced processing circuit and temperature compensation technology. Convert pressure changes into linear current,voltage or RS-485 signals.The product is small in size and easy to install. It adoptsa digital display head and a stainless steel shell. It is suitable for measuring media such as gasand liquid

LFT6800 OrderRef No

LFT700

PressureTransmitter

LFT700 pressure transmitter isused tomeasure the liquid level density and pressure of liquid,gas or steam,then convert it to 4 ~ 2 0 \mathsf { m A } DC output signal.The transmitter can be operated locallywith three buttons,or remotelyoperated byauniversal hand operator,configuration software,and mobile phone APP. Itcanperformdisplayand configurationadjustmentswithout affecting the output signal of 4\~20mA DC.

STANDARDSPECIFICATIONS

Standard zero point as the Reference Calibration Range,stainless steel 316L diaphragm,silicone oilas filing liquid.

PERFORMANCESPECIFICATIONS

Theoverall performance includes but is not limited to [reference accuracy], [environmental temperature impact] and comprehensive error of other impact.

·Typical accuracy: ± 0 . 0 7 5 % of the upper limit of the range ·Annual stability: ± 0 . 2 % of the upper limit of the range

1)Reference Accuracy of Range Adjustment

2)Influence of Ambient Temperature Theaccuracy of the range below 6Kpa is 0 . 0 7 5 % in the normal temperaturerange,andtheaccuracyof the full temperature rangeof - 2 0 { ~ } 7 0 ^ { \circ } C is 0 . 1 5 %

3)Power Influence

When the power supply voltage changes within12\~36VDC,the changeof zero pointand rangedoesnot exceed ± 0 . 0 0 5 % of the upperlimit of the range/V,which canbe ignored.

FUNCTIONALSPECIFICATIONS

1)Range Selection

Within the range of theupperand lower limits,the turndown ratio can beadjusted to select therange.For example,theupperand lower limits are-40\~40kpa.At this time,choose toadjust the turndownratio to10, and choose to output 0 { ~ } 4 \mathsf { K } \mathsf { p a } or - 4 { ~ } 4 \mathsf { k p a } .Inorderto ensure the accuracy,the turndownratioshould beassmall as possible,generally within10,too large will affect the accuracy.

2)Zero Setting

Zero pointand range canbeadjusted to any valuewithin the measurementrange in the table,thecalibrationrangemust >= the minimum range.

3)lmpactof Installation Position

Installatanyposition,themaximum doesnot exceed 4ooPa canbe correctedby clearing.

4)Range and Scope

6)Alarm Current

·Lowalarm mode(minimum): 3 . 8 \mathsf { m A } #
·High alarm mode(maximum) 2 0 . 8 m A ：
·No alarm mode(Hold):Maintain the high-alarm mode of effective current value before failure.
·Alarm current standard setting:high-alarm mode.

7)Response Time

·The total damping constant time; equal to the sum of the damping time of electronic circuit componentsand the sensorcase.
·Electronic circuit component damping time: O-6oS range adjustable. ·Sensing case damping time: \mathtt { s 0 . 2 S }
·Power-onstart-up timeafter power failure:≤5S.
·Data recovery to normal use time:≤2S.

8)AmbientTemperature

INSTALLATION

1)Power Supplyand Load Conditions

PHYSICALSPECIFICATIONS

1)Dimension(mm)

Note:The function of the shortcut interfaceisequivalentto the signal terminal.

ELECTRICALCONNECTION

DETAILEDMODELSELECTION

Model SelectionTable

LFT710 Differential Pressure Transmitter uses single crystal silicon sensor chip which adopts German advanced MEMS technology. It has built-in temperature compensation element and extremely highmeasurementaccuracyand long-termstabilityoverawide rangeof static pressureand temperature variations.Itcanmeasure level,density, pressure of liquid,gas and steam.It is widely used in industrial process control,automated manufacturing,aerospace automotiveandmarinepetroleumand petrochemical,electronic power,medical and health and many other fields.

LFT710canaccuratelymeasuredifferential pressureandconvertit into 4-20 mA DC output signal and can be operated locally through threebuttons,and remotelyoperatedbya general-purpose communicator,configurationsoftware,andmobilephone APP,to perform display and configuration adjustment without affecting the 4-20 mA DC output signal.

STANDARDSPECIFICATIONS

Standard zero pointas the Reference CalibrationRange,stainlesssteel 316L diaphragm, silicone oil as filing liquid.

PERFORMANCESPECIFICATIONS

Theoverall performance includes,but not limited to, the combined errol ofReferenceAccuracy,StaticPressureEffect,AmbientTemperature Effectandothereffects.

·Typical accuracy: ± 0 . 0 7 5 % of the upper limit of the range ·Annual stability: ± 0 . 2 % of the upper limit of the range

1)Reference accuracy of range adjustment

2)Static Pressure Impact

3)Ambient Temperature Influence of range below 6KPa

4)Voltage Impact

When the power supply voltage varieswithin12\~36VDC,the variation of zero point and range is not exceed ± 0 . 0 0 5 % of the upper limit range N , which can be ignored.

FUNCTIONALSPECIFICATIONS

1)Range and Scope

2)Range Limits

Range can be adjustedby turn down adjustmentwithin URLand LRL. Such as for URL/LRL - 4 0 ~ 4 0 kPa, T D = 1 0 ,rangecanbe 0 ~ 4 \mathsf { k P a } or （204号 { \mathsf { - 4 } } ~ 4 | \kappa | { \mathsf { P a } } .Turndown should beas lowas possible to ensure accuracy In general, turn down is within10,too big will affect accuracy.

3)Zero Point Setting

Zeroand spancanbeadjusted toany valuewithin themeasurement range in the table,as longascalibrationrange isnotless than minimumrange.

4)lnstallation Position Influence

Installation position influencedoes not exceed150Pa,and canbe correctedbytheresetoperation.

6)Alarm current

Lowreport mode(Minimum):3.8 mA.
High report mode(maximum):20.8 mA.
No report mode (hold): keep the effective current value before the fault.
Standard setting of alarm current: high alarm mode.

7)Response time

·Total damping constant time is equal to the sum of the damping time constants of the electronic circuit componentsand the sensing diaphragm.
·Damping time of electronic circuit components:adjustable with in 0-60S.
·Sensing diaphragm damping time <= 0 . 2 5
·Power-on startup time after power-o ff≤5S.
·Data recovery to normal usage time <= 2 5

8)Ambient temperature

1)Voltageand Load Conditions

2)Electrical connection

PHYSICALSPECIFICATIONS

ELECTRICALCONNECTIONDIAGRAM

1)Dimension(mm)

Note:Theshortcut interface is functionallyequivalent to thesignal terminal.

Modeland Specification CodeTable

1)Selection table

LFT720A

Flange-mounted DPTransmitter

LFT720Flange-mounted Transmitter iscomposed ofLFT710 Differential Pressure Transmitter and a welded liquid level flange Between the flangeand thesensor,siliconoil and other filling fluids areused to transmit pressure,to prevent themeasured medium from passing through the impulse pipe then impact the measurement.The impact of the measured medium pass through the impulse pipe includes:crystallization,solidification,vaporization (boiling), condensation,fractionation (severechange) and etc.TheTransmitter isused tomeasure the liquid level,flowand pressureof liquid,gasor steam,and then convert it into 4\~20mA signal output.The working principle of the LFT720 Flange-mounted Transmitter is the sameas LFT710 Differential Pressure Transmitter except that the pressure transmission path on the positive pressure side isslightlydifferent, that is the pressure acting on the high-pressure side first passes through the diaphragm of the liquid level flange and the filing liquid, and then pass through the transmitter body,and finally reach the high pressure side of the measuring sensor.

SPECIFICATION

Therange isadjusted based on thestandard zero point.The diaphragm is stainlesssteel 316L,and the filling liquid issilicone oil.

1)Reference accuracy of range adjustment

2)Power Impact

When thepowersupplyvoltagechangeswithin12\~36VDC,the change of zero point and range does not exceed ± 0 . 0 0 5 % of the upperlimitof therange/V,whichcanbeignored.

FUNCTIONALSPECIFICATIONS

1)Range Selection

Within therange of the upperand lower limits,theTDvalue can be adjustedwithin theallowablerange toselect therange.Forexample, theupperand lower limitsare-40\~40kpa.At this time,choose to adjust theTDvalue to10,andchoose to output0\~4Kpa,or - 4 { ~ } 4 \mathsf { k p a } # Inorder toensure theaccuracy,theTD valueshouldbeassmall as possible,generally within 10,too large will affect the accuracy.

3)Zero Setting Zero point and range can be adjusted to any value within the measuring range in the table,as longas: calibration range >= minimumrange

4)Installation position influence

It canbe installedatanyposition through the liquid level flange.The beststateistokeeptheprocessflangeinaverticalstate.Theoffset causedby the positiondeviationcanbe correctedby clearing the operation.

6)Alarm Current

·Lowalarm model (Min):3.8mA.
·Highalarmmode(Max):20.8mA.
·Alarm current standard setting:highalarm mode.
·Non-alarm mode (maintain): maintain the current practical value before the fault.

7)Response time

·The total damping constant time equal to the sum of the damping time constant of the electronic circuit components and the sensing bellows.
·Electronic circuit component damping time: O-6oS range adjustable. ·Sensing bellows damping time: <=slant 0 . 2 \mathsf { s }
·Power-on start-up time after power failure: ≤5S.
·Datarecovery to normal usage time:≤2S.

8)EnvironmentTemperature

INSTALLATION

1)Power Supplyand Load Conditions

PHYSICALSPECIFICATIONS

1) Dimensions(mm)

ELECTRICALCONNECTION

PROCESSCONNECTIONDESCRIPTION

MODELANDSPECIFICATIONCODELIST

1.Differential pressure single flange (selection)

LFT720B

Remote Flange DPTransmitter

LFT720 Remote Flange Transmitter is composed of the LFT710 Differential Pressure Transmitter and a small welded remote flange withacapillary tube.Between the flangeand the sensor,silicon oil and other filing fluids are used to transmit pressure,to prevent the measured medium from passing through the impulse pipe.Which will impact themeasurement.The impactof themeasuredmedium pass through the impulse pipe includes crystallization,solidification vaporization (boiling), condensation fractionation (severe change) and etc.TheTransmitteris used to measure the liquid level,flow and pressure of liquid, gas orsteam,and thenconvert it into 4\~20 mA signal output.The working principle of LFT720 Flange Transmitteris thesameasLFT710 Differential Pressure Transmitter exceptthatthepressuretransmissionpathonthepositivepressure side is slightly different,that is the pressure acting on the highpressure side firstlypasses through the diaphragmand the filing liquidof the remote flange,and thenpassto the transmitterbody viacapillary tube,and finally reach the high pressure side of measurement sensor.

SPECIFICATION

The range is adjusted based on the standard zero point. The diaphragm isstainlesssteel 316L,and the filling liquid issilicone oil.

1)Reference accuracy of range adjustment

2)Power Impact

When the power supply voltage changes within_12\~36V DC,the change of zeropointand range doesnot exceed ± 0 . 0 0 5 % of the upper limit of the range/V,which can be ignored.

FUNCTIONALSPECIFICATIONS

1)Range Selection

Range can be adjusted by turn down adjustment within URLand LRL Suchasfor URL/LRL - 4 0 { ~ } 4 0 \mathsf { k P a } T D = 1 0 ,rangecanbe0\~4kPaor -4\~4kPa.Turn down should beas lowas possible to ensure accuracy. In general,turn down is within10,too big willaffect accuracy.

3)Zero Setting

Zero pointandspancanbeadjusted toany valuewithin themeasuring range in the Table,as longas thecalibrationrange >= minimum span.

4)lnstallation position influence

It caninstallatanyposition through the liquid-level flange.The best stateistokeep theprocessflangeinaverticalstate.Theoffsetcaused bythepositiondeviationcan becorrectedbyclearing the operation.

6)Alarm Current

·Lowalarmmodel (Min):3.8mA.
·High alarm mode(Max):20.8mA.
·Alarm current standard setting: high alarm mode.
·Non-alarm mode (maintain):maintain the current practical value before the fault.

7)Response time

·The total damping constant time equal to the sum of the damping time constant of the electronic circuit components and the sensing bellows.
·Electronic circuit component damping time:O-6oS range adjustable. ·Sensing bellows damping time <=slant 0 . 2 5
·Power-on start-up time after power failure: ≤5S.
·Data recovery to normal usage time: <= 2 5

8)EnvironmentTemperature

INSTALLATION

1)Power Supplyand Load Conditions

PHYSICALSPECIFICATIONS

1)Dimension(mm)

ELECTRICALCONNECTION

PROCESSCONNECTIONDESCRIPTION

DIAPHRAGMSEALSELECTIONGUIDE

MODELANDSPECIFICATIONCODELIST

1.Differential pressure monoflange remote transmission (selection)

LFDS62 Digital Pressure Switch

Dimension in:mm

LFDS62 Digital Pressure Controller adoptsa highreliability ceramic core for pressure measurement.The signal is processed by the back-end circuit and displayed,and the relay output is automatically controlled according to the pressure change.The product isdesigned with anal-engineering plastic shell.The switch pressure and rated current can be set by pressing the button. The digital tube can display the current pressure in real time and switch to display the output current.At the same time,it has the function of Overcurrent protection.When used in a water pump system,the dry pumping alarm can be turned on to protect the motor. Inaddition,according to the actual needs of the site,the fast cycle alarm function can be turned on to avoid frequent starting and stopping of the motor. The product has the characteristics of antivibration,simple operation,strong stability，and clear display. Suitable for air compressors,water pumps and

LFDS62 OrderRef No

LFDS63 Digital Pressure Switch

Dimension in:mm

LFDS63 Digital Pressure Switch adopts high-reliability pressure core for pressure measurement. The signal is processed by the back-end circuit and displayed,and the relay output is automatically controlled according to the pressure change. This series of products are designed with al-enaineering plastic shell,and the high-contrast LCD digital display enables the product to be used in various industrial occasions. It provides a variety of connection methods to fully meet various specific installation needs,and has a variety of built-in setting items,allowing users to adjust the working parameters by themselves,which is flexibleand convenient.This series of products has the

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LFDS65 Digital Pressure Switch

LFDS65 (650/652) series intelligent Pressure Switch is an intelligent control instrument integrating pressure measurement, largescreen LCD display and control.The instrument canautomatically open/close the relay output according to the pressure state in the container, in order to maintain the pressure in the containerAvarietyofconnectionmethodsare provided to fully meet various specific installation requirements.Various setting items are built in,and the working parameters can be adjusted by the user.It is flexible and convenient .withsimple operation,clear display,anti

LFDS65OrderRefNo

LFDS68 Pressure Switch Transmitter

INSTALLATIONDIMENSIONS

LFDS68 Pressure Switch is a fully electronic device,It uses a high-precision,high-stability silicon piezoresistive sensorwitha dedicated signal conditioning circuit. It features:On-site digital display; one channel 4 { * } 2 0 \mathsf { m A } analog output; two channel electronic switch outputs or onerelay switch output;multiple pressure connection options: threaded or Tri-Clamp.This compact device integrates pressure measurement, display, output,and control.it is flexible，easyto operate，safe,andreliable, widelyused in:industrial automation; environmental protection,petrochemical

Specification

CONSTRUCTIONMATERIALS

Digitalsensortemperatureaccuracycurve

Dimensionin:mm

LFH10 Temperatureand HumidityTransmitter

LFH10 Temperature and Humidity Transmitteris speciallydesigned for industrial applications.There are three installation methods:wall-mount, duct type,and split type. Three output models of current, voltage,and Rs485are optional,with flexiable site installation adaptability.The terminal designissuitable forquick

LFH10A Temperature and Humidity Transmitter

LFH10A series Temperature and Humidity Transmitter is atransmitter specially designed for industrial applications it has three installation methods:wallmounted, duct type,and split. The three output modes of current,voltage and RS485 are optional. The on-site adaptabilityis strong,and the terminal designis suitable for rapid installation,it can bewidely used in computer rooms,HvAC,buildings,warehousing and other places where temperature an humidity

LFH10A OrderRefNo

LFH20
IndoorTemperatureand
HumidityTransmitter
RH 48.2%
22.3C

Dimension in:mm

LFH20 Temperature and Humidity Transmitteris specially designed for indoor temperatureand humidity detection.It is small in size,simplein installation and easy to operate. It has special design for lightning surge,static electricity，group pulse, withstandvoltage,etc,and hasstrongant-interference ability. There are three output modes of current,voltage and RS485 to choose from. It can be

LFH21

Temperatureand Humidity controller

Dimension in:mm

LFH21 Temperature and Humidity Controller is a product specially designed for indoor temperature and humidity detection and control. t has the advantages of compact size,simple installation and convenient operation,it has special design for lightning surge, electrostatic discharge, group pulse,voltage resistance，etc.,strong antiinterference ability,and hasan alarm function.lt iswidely used in computer rooms, buildings, warehousing and other

DIGITALSENSORTEMPERATUREACCURACYCURVE

LFH21OrderRefNo

LFH30 Temperature and Humidity Transmitter

LFH30 OrderRefNo LFH30-2A4A411

ABCDE

LFH30 senstive components use imported polymer film humidity sensitive capacitorsand PT1oo0 temperature sensitive resistors.The special breathable coatingand SMD injection molding process can ensure the long stability of the probe in the environment of dust, salt spraypollution and high humidity condensation.Itis calibrated with mature humidity and temperature measurement technology to ensure the accuracy. Itis suitable for high-standarointelligent buildings, lincubators, industrial dehumidifiersand other fields.

LFH51 Probe Type Temperature and HumidityTransmitter

LFH51 Temperature and Humidity Transmitter adopts high-precision digital probe,which has good long-term stabilityand anti-interference ability,small size,simple installation and easy operation. There are two output modes of voltageand RS485 to choose from.It iswidely used in ventilation ducts,industrial

LFH51 OrderRef No

Specification

LFH52 Outdoor temperatureand Humidity transmitters

LFH52 Temperature and Humidity Transmitter is a Transmitter specially designed for outdoor temperature and humidity detection.The standard radiation shield can preventwind and rain,and provide the best protection for the transmitterin bad weather. There are three output modes of current,voltage and RS485 to choose. Can be widely used in construction site

LFH60 MagneticTemperatureand Humidity Transmitter

Dimension in :mm

LFH60 Temperature and Humidity Transmitter adopts high-precision sensor,built-in temperature and humidity sensor,high precision,fast response speed,and good longtermstability.Thereare four powerfulmagnets onthe back,which can be directly attached to thecabinet or wall-mounted,which greatly improves the installation efficiency. Can display temperature,humidity,address.The product is widely used in communication rooms warehouse buildings,librariesand otherplaces.

Specification

Digitalsensortemperatureaccuracycurve

LFH70 High-temperature temperature & Humidity transmitter

ORDERREF NO.

Note:The default length of split type cable is1meter,and the length can be added bymeter basis,represented by number after the model.The default temperature range for voltage and current type is { \displaystyle - 2 0 ~ 6 0 ~ ^ { \circ } C } , and can be reset by pressing any button.

LFH70 Temperature&humidity Transmitter isa highly reliable product developed for high-precision temperature and humidity measurementin fundamental industrial applicationsand climate control fields.itssplit probe can work inenvironments with temperatures up to 1 8 0 ^ { \circ } C The high-termperature humidity sensitive capacitor has high longtermstability, strong anti pollution ability,and excellent anti electromagnetic interference ability. Comparing to other HvAC transmitters, the innovative metal

Model selectionexampleLFH70-A4-2itmeanssplittypetemperatureandhumiditystructuredesigngivesLFH70theadvantageof transmiter,4-20mAoutput,withLCDexternalbuton,ustomizedwirelengthof2metersStrongerstructureandlongerdurationinharsh Specification working conditions.