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LEFOO LFG201 wall-mounted carbon dioxide transmitter (Upgraded Ver.) is based on the fact that different gases have different absorption 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 the characteristics of long life, good stability, wide power supply range and power supply anti-reverse connection protection. It is suitable for carbon dioxide gas measurement in indoor air quality detection, air conditioners, air purifiers, vegetable greenhouses and other occasions.
* Update Point: The core has been upgraded, solving the stability failure issues of the original core during the production process and at the customer end, making it more durable and more secure. Except for the rear wiring method, all other parameters can still be achieved.
Features
* Imported infrared light source and dual-channel thermopile detector
* The sensor is oxygen-free and has a service life of more than 5 years
* Long-term stability and reliability
* Double-layer waterproof membrane design effectively prevents water vapor from entering
| LEFOO Wall Mounted CO2 monitor transmitter LFG201 (Upgraded Ver.) | ||||
| Output | 4-20mA(3-wire) | 0-5V(3-wire) | 0-10V(3-wire) | RS485(4-wire) |
| Working Voltage | 10-30VDC | 10-30VDC | 16-30VCD | 10-30VDC |
| Working Temperature | -10℃~50℃ | |||
| Working Humidity | 0-80%RH(no condensation) | |||
| Measure Concentration | 0-2000PPM/0-5000PPM/0-10000PPM | |||
| Accuracy | ±(40PPm+ 3%Fs)@25℃ | |||
| Preheat Time | 2min(available)-10min(maximum accuracy) | |||
| Protection Class | IP65 | |||
| Service Life | >5years | |||
| RS485 digital output wiring guide | ||
| Power supply | Red | Power positive |
| Black | Power negative | |
| Communication | Green | 485-A |
| White | 485-B | |
| Voltage/current analog output wiring guide | ||
| Power supply | Red | Power positive |
| Black | Power negative | |
| Communication | Green | Voltage/current output positive |
| White | Voltage/current output negative | |
Code and description | Remarks | |||||
LFG201 | Wall Mounted CO2 monitor | Model | ||||
1 | 2000ppm | Measure Range | ||||
2 | 5000ppm | |||||
3 | 10000ppm | |||||
IV0 | 4~20mA&0~5V | Output | ||||
IV1 | 4~20mA&0~10V | |||||
| RS | RS485/Modbus | |||||
A | Side Outlet | Cable Outlet | ||||
| B | Rear Outlet | |||||
| T | Terminal outlet | Outlet Form | ||||
| D | Direct outlet | |||||
LFG201 | 2 | IV1 | A | T | Example of Selection | |
Note:
➀The terminal outlet is the welding terminal on the internal circuit board, without wire factory;
➁The direct outlet is the wire welded on the internal circuit board, the default 60cm outlet (other lengths of wires can becustomized).
Imported infrared light source and dual-channel thermopile detector
The sensor is oxygen-free and has a service life of more than 5 years
Long-term stability and reliability
Double-layer waterproof membrane design effectively prevents water vapor from entering
The CO2 Transmitter Shows the carbon dioxide (CO2) concentration in the ambient air as a measure for air quality. A common application is for the HVAC system and construction industries. It is suitable for carbon dioxide gas measurement in indoor air quality detection, air conditioners, air purifiers, vegetable greenhouses and other occasions.
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