Specification of Temperature and Humidity Transmitter LFH10A

Technical parameter

Temperature and Humidity Transmitter LFH10A
Relative Humidity
Sensor		Digital type
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		See Order Ref No. and Thermal Resistance Indexing Table
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

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