09,22,2026 16 views
The LFW70 explosion-proof temperature transmitter is a high-performance instrument designed specifically for temperature measurement in industrial sites. This product adoptsImportrtdHigh precisionADC and reference circuit, after precise calibration and debugging, can output standard analog signals (4~20mA/0~10V) or digital signals (HART/RS485), suitable for various industrial environments such as petroleum, chemical, power station, hydrology, etc.
The product structure adoptsStainless steel probe rodanddie-cast aluminum housingIt has excellent mechanical strength and good corrosion resistance, ensuring stability and reliability even under harsh working conditions.
1Product Features
lHDLCD displaySupport multi parameter on-site settings for real-time monitoring and debugging.
lDiversified output methods:support4~20mA, HART, 0~10V, RS485 and other signal outputs to meet different system interface requirements.
lComprehensive protection function:Equipped with multiple protections such as reverse connection, lightning strike, current limiting, and overvoltage, and industrial grade anti-interference design.
lWide voltage power supply: AdaptationWide voltage range of 9.5~35VDC, strong compatibility.
lHigh precision and stability:Accuracy can reach± 0.25% FS, with small temperature drift and good long-term stability.
lHigh explosion-proof protection level:Explosion proof typeEx db IIC T6 Gb， Explosion proof dust type up to Ex tb IIC T80 ℃ Db, protection level IP66, suitable for hazardous areas.
IIMain technical parameters
measuring medium |
Liquid or gas (compatible with contact material) |
measurement range |
-50~300℃ |
output signal |
4~20mA / HART / 0~10V / RS485 |
power supply voltage |
voltage/RS485 type: 15~35VDC; Current type: 9.5~35VDC |
accuracy class |
±0.25%FS / ±0.5%FS |
working environment |
-40-85 ℃, 0-95% RH (non condensing) |
Shell material |
die-cast aluminum +304 stainless steel probe rod |
Protection level |
IP66 |
display mode |
LCD（-10~60℃） |
Net weight |
1340g (excluding probe) |
IIIStructural design and installation method
Threaded installation:G1/2TheG1/4TheM20×1.5wait
Clamp installation:50.5mmStandard clamp
Welding base, adapter flange, chuck and other accessories (need to be purchased separately)
The length of the probe is from30mmto300mmOptional, supporting structures with or without cold ends to meet different insertion depths and heat dissipation requirements.
4Selection instructions
Output type:A4（4~20mA）TheHART（4~20mA+HART）TheV10（0~10V）TheRS（RS485）
Accuracy level:X（0.25%FS）TheB（0.5%FS）
Explosion proof type:G(Explosion proof)GF(Explosion proof dust)P（普通型）
Installation method:G2/G4/M20/Kwait
Probe length:L30~L300
Cold end option: No cold end/100mmcold end/custom length
Display function: No display/There is an indication
5Application scenarios
Petrochemical plant、Power plants and thermal systems、Hydrological monitoring and water conservancy facilities、Pharmaceutical, food and other process industries、Any industrial site that requires explosion-proof and high-precision temperature monitoring.
LFW70Explosion proof temperature transmitters have become an ideal choice in the field of industrial temperature measurement due to their high precision, strong anti-interference, multi signal output, and flexible installation. Whether it's the environment or complex working conditions,LFW70We can provide reliable and stable temperature monitoring solutions. For more details or selection support, please visit.
