Instrument and Meter Manufacturer
LFS73 Explosion-Proof & High-Temperature Integrated Air Velocity/Air Volume Transmitter
PRODUCT FEATURES
Description
LFS73 Explosion-proof &High-temperature integrated Air Velocity/Air Volume Transmitter is a kind of transmittersuitable for high temperature explosion-proof environment of gas flow measurement,it can convert the flow rate /flowof gas into electrical signals,and transmit it to the control system.Measurement range can be adjusted through thebutton on site.Using IP65 protection housing,which is suitable for energy management system,VAV and fan control,environmental pollution control,smoke cover control,oven and boiler ventilation control and other fields.
Specification
| Measurement medium | Air or neutral gas |
| Range | Air velocity:0～30m/s(range can be adjusted between 5～30m/s) 0~100m/s(range can be adjusted between 35～100m/s) Air volume :customized air volume(Max.99999m³/h) |
| Overload pressure | 10KPa(0~30m/s);80KPa(0~100m/s) |
| Accuracy① | ±3.0%FS(Air velocity>3m/s) |
| Working temperature | Main Unit:-20℃~70℃;probe:-40℃~450℃ |
| Compensation temperature | -10℃~60℃ |
| Storage temperature | Main Unit:-40℃~80℃ |
| Response time | 0.5s/1.0s(default)/2s/4s |
| Ingress Protection | IP65 |
| Electrical interface | Six-core wire,cable diameter of 8mm |
| Output signal | 4～20mA&0～10VDC&RS485 |
| Power Supply② | 12～30VDC/24VAC±20% |
| Power consumption | ≤1.5W |
| Shell material | Cast aluminium |
| Communication | RS-485 standard Interface,Modbus RTU protocol |
| Certification project | ROHS,CE |
| Explosion-proof grade | Ex db IIC T6 Gb |
| Display | LCD backlit digital display |
①Environmental conditions:temperature:20℃,humidity:45%RH,atmospheric pressure:1035hPa.
②When the product uses theACpower supply,it is recommended to use the isolatedAC power supply.
Product Selection
| LFS73- | Model | Notes | ||||||||||
| 1 | 0-30m/s(The measuring range can be adjusted between 5-30 m/s) | Range | ||||||||||
| 2 | 0-100m/s(The measuring range can be adjusted between 35-100 m/s) | |||||||||||
| 3 | Air volume Customized(max 99999m³/h) | |||||||||||
| A | 4-20mA&RS485 | Output | ||||||||||
| B | 4-20mA&0-10VDC | |||||||||||
| C | 0-10VDC&RS485 | |||||||||||
| L5 | 50mm | Insertion depth into duct–L | ||||||||||
| L10 | 100mm | |||||||||||
| L15 | 150mm | |||||||||||
| L20 | 200mm | |||||||||||
| XX | Customized | |||||||||||
| T15 | -40~150℃(The length of the cold end is about 100mm) | Medium temperature ① | ||||||||||
| T30 | -40~300℃(The length of the cold end is about 150mm) | |||||||||||
| T45 | -40~450℃(The length of the cold end is about 300mm) | |||||||||||
| F | Metal flange | Installation type | ||||||||||
| L | Threaded installation | |||||||||||
| XX | Pipe cross-sectional area(m²) The selection of air volume transmitters requires filling in the cross-sectional area of the pipeline | |||||||||||
| LFS73 | 1 | A | L15 | T15 | F | |||||||
| LFS73-1AL15T15F range:0-30m/s、output:4-20mA&RS485、insertion depth into duct:150mm、 medium temperature:-40~150℃、Installation type:metal flange | ||||||||||||
FAQs
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