DESCRIPTION
LFH10A series temperature and humidity transmitter is a transmitter specially designed for industrial applications.It has three installation methods: wall-mounted, pipeline and split.
The three output modes of current, voltage, and RS485 are optional.
The on-site adaptability strong, and the terminal design is suitable for rapid installation.
It can be widely used in computer rooms, HVAC, buildings, storage vegetable greenhouses, farms and other places where temperature and humidity measurement is required.
FEATURES
- Adopt high-precision sensor and main control, long-term stability and anti-interference ability
- Outstanding design, LCD backlight dual display of temperature and humidity, easy operation
- Overvoltage and reverse connection protection function, IP65 protection level
- Temperature range can be changed by dialing code, 485 output can change the machine number and baud rate by dialing code
TECHNICAL DATA
| RELATIVE HUMIDITY | |
| Sensor | Digital |
| Measuring Range | 0%~100%RH |
| Output | RS485/Modbus, 0~10VDC, 4~20mA optional |
| Response Time | ≤10s(20℃, slow flow air) |
| Accuracy | ±2%@ 25℃ & 60%RH |
| TEMPERATURE | |
| Sensor | Digital or thermal resistance |
| Measuring Range | 0~50℃, -20~60℃ |
| Output | 4~20mA, 0~10VDC, RS485/Modbus |
| Work Temperature | -20~60℃, 5%-95%RH (non-condensing) |
| Thermal resistance | Refer Selection Guide |
| Output Load |
≤250Ω (Current Type) ≥2KΩ (Voltage Type) |
| Accuracy |
Digital: ±0.3℃@0~60℃ Thermal resistance: ±0.2~0.4℃@25℃ |
| Display | LCD display optional, with unit display and backlight (4~20mA output without backlight) |
| Power Supply |
Voltage type/RS485 type: 15~35VDC/24VAC±20% Current type: 19.5~35VDC (RL=500Ω) 9.5~35VDC (RL=0Ω) |
| Shell Material | ABS housing, PC probe and high polymer filter |
| Protection Grade | IP65 |
SELECTION GUIDE
| Code and description | Remark | |||||||||
| LFH10A1 | Wall-mounted temperature and humidity transmitter | Model | ||||||||
| LFH10A2 | Duct type temperature and humidity transmitter | |||||||||
| LFH10A3 | Split type temperature and humidity transmitter | |||||||||
| 3 | ±3%RH(0.3℃） | Accuracy | ||||||||
| V10 | 0~10VDC(Three-wired) | Humidity output | ||||||||
| A4 | 4~20mA(Two-wired) | |||||||||
| RS | RS485/Modbus | |||||||||
| V10 | 0~10VDC(Three-wired) | Temperature output | ||||||||
| A4 | 4~20mA(Two-wired) | |||||||||
| RS | RS485/Modbus | |||||||||
| 0 | PT1000, ±0.2℃@0℃ | |||||||||
| 1 | PT100, ±0.2℃@0℃ | |||||||||
| 2 | NTC20K, ±0.4℃@25℃ | |||||||||
| 6 | NTC10K, ±0.4℃@25℃ | |||||||||
| 0 | None | Temperature range | ||||||||
| 1 | 0~50℃ | |||||||||
| 2 | -20~60℃ | |||||||||
| 8 | Others (customer specified) | |||||||||
| 0 | without display | Display | ||||||||
| 1 | with display | |||||||||
| LFH10A1 | 3 | A4 | A4 | 1 | 1 | Selection example | ||||
DIMENSIONS
