Name: WHD48-11 Temperature Humidity Multi Sensor By Modbus Rs485
Brand: Jiangsu Acrel Micro-grid Research & Development Institute

Acrel WHD48-11 Temperature Humidity Multi Sensor By Modbus Rs485

Acrel's WHD48-11 is a modbus RS485 temperature and humidity multi-sensor with a measuring range of -40.0°C to 99.9°C for temperature and 0% to 99% RH for humidity. With precision of ±1°C and ±5%RH, its transmitting output is DC 4-20mA or DC 0-20mA. The controller's working condition has a temperature range of -20°C to +60°C and humidity of ≤95%RH, without condensation and corrosive gas. Suitable for humidity control, heating for temperature rising, and blowing for temperature decreasing, it has output contact capacity of 5A/AC250V and communication port of RS485, Modbus (RTU) treaty.

Specification of WHD48-11 Temperature Humidity Multi Sensor By Modbus Rs485

Technical Datasheet

Technical Parameter		Value
Measuring Range	Temperature	-40.0℃~99.9℃
Measuring Range	Humidity	0%RH~99%RH
Precision	Temperature	±1℃
Precision	Humidity	±5%RH
Transmitting Output		DC 4-20mA or DC 0~20mA
Ser range of controlling parameter	Heating for Temperature rising	-40.0℃~40.0℃
	Blowing for temperature decreasing	0.0℃~99.9℃
	Humidity control	20%RH~90%RH
Output Contact Capacity		5A/AC250V
Start/stopgap		5
Communication port		RS485,MODBUS(RTU) treaty
Auxiliary Power	Voltage	AC/DC 85-265V
Auxiliary Power	Consumption	Basic power consumption(≤0.8w)+relay power consumption(each channel≤0.7w)
Insulation Resistance		≥100MΩ
Power-frequency withstand voltage		power with shell, touchable metal parts/power with another terminal group 2kV/1 min(AC.RMS)
Average work time without stoppage		≥50000 hours
Working condition(controller)	Temperature	-20℃~+60℃
	Humidity	≤95%RH, without condensation and corrosive gas
	Altitude	≤2500m

Diagram of WHD48-11 Temperature Humidity Multi Sensor By Modbus Rs485

Function

Function

Dimension

Wiring

Typical Connection