Instrument and Meter Manufacturer
LFH10A Temperature and Humidity Transmitter
PRODUCT FEATURES
Description
LFH10A series temperature and humidity transmitteris a transmiter specially designed for industrial applications.It has three instalationmethods:wall-mounted,pipeline,and split.The three output modes of current,voltage,and RS485 are optional.The on-site adaptabilityis strong,and the teminal design is suitable for rapid installation.It can be widely used in computer rooms,HVAC,buidings,storagevegetable greenhouses,fams and other places where temperature and humidity measurement is required.
Specification
| ①Relative Humidity | |
| Sensor | Digital |
| Range | 0%~100%RH |
| Output | RS485/Modbus,0~10VDC,4~20mA optional |
| Accuracy | ±3%@20℃&20~80%RH |
| Response time | ≤10s(20℃,slow flow air) |
| ②Temperature | ||
| Sensor | Digital or thermal resistance,see model selection table | |
| Range | 0~50℃,-20~60℃ etc. | |
| Output | 4~20mA,0~10VDC,RS485/Modbus Optional | |
| Thermal resistance | See selection table and thermal resistance indexing table | |
| Accuracy | Digital sensor:±0.3℃@(0~60℃)see table below. Thermal resistance:typical±0.2~0.4℃@25℃,see selection table | |
| Power supply | Voltage type/RS-485:15~35VDC/24VAC±20% (AC power supply requires isolated power supply) | Current type:14.5~35VDC(RL=250Ω) 9.5~35VDC(RL=0Ω) |
| Output load | ≤250Ω(Current type),≥2KΩ(Voltage type) | |
| Display | Optional LCD display with unit display and backlight(4~20mA without backlight) | |
| Case Material | PC shell,PA6 probe rod and polymer filter (optional stainless steel probe and stainless steel sintered filter) | |
| Working environment | -20~60℃,5%-95%RH(non-condensing) | |
| Protection Grade | IP65 | |
Product Selection
| Code and Description | Remark | |||||||||||||
| LFH10A1- | Wall-mounted temperature and humidity transmitter | Main Model | ||||||||||||
| LFH10A2- | Duct Type Temperature and Humidity Transmitter | |||||||||||||
| LFH10A3- | Split type temperature and humidity transmitter | |||||||||||||
| 3 | ±3%RH(0.3℃) | Accuracy | ||||||||||||
| V10 | 0~10VDC(3-wired) | Humidity Output | ||||||||||||
| A4 | 4~20mA(2-wired) | |||||||||||||
| RS | RS485/Modbus | |||||||||||||
| V10 | 0~10VDC(3-wired) | 0 | PT1000,±0.2℃@0℃ | Temperature Output | ||||||||||
| A4 | 4~20mA(2-wired) | 1 | PT100,±0.2℃@0℃ | |||||||||||
| RS | RS485/Modbus | 2 | NTC20K,±0.4℃@25℃ | |||||||||||
| 6 | NTC10K,±0.4℃@25℃ | |||||||||||||
| 0 | None | Temperature Range | ||||||||||||
| 1 | 0~50℃ | |||||||||||||
| 2 | -20~60℃ | |||||||||||||
| 8 | Other(customized) | |||||||||||||
| 0 | None | Display Mode | ||||||||||||
| 1 | LCD display | |||||||||||||
| LFH10A1 3 A4 A4 1 1 | Model Example | |||||||||||||
1.Only when the temperature output option is V10 orA4,the corresponding temperature range 1-8 needs to be selected;otherwise,only O can be selected.
2.Example LFH10A1-3A4A411 represents the wall-mounted type,the temperature and humidity accuracy is±3%RH(±0.3℃),the humidity output is 4~20mA,and the temperature output is 4~20mA,temperature range 0~50℃with display.
3.Prolonged exposure of this product’s sensor probe to high concentrations of chemical gases may cause the sensor’sreadings to shift.
4.To choose a metal rod temperature and humidity transmitter,you need toclearly write the specifications of the metal rodand the front cover in the remarks.
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