墙面安装数字温湿度变送器 WM281

Technical Specification

PERFORMANCE
Measurement Range (RH)	0-100% RH
Measurement Range (T)	-30 to +70°C
Accuracy RH @ 23°C	<±2% RH (5-95% RH)
Accuracy T @ 23°C	±0.4°C (-10 to +50°C)
Stability - RH Sensor	<±1% RH/year
Response Time - RH Sensor	<10 sec typical (for 90% of the step change)
ELECTRICAL INPUT/OUTPUT
Output	0-1, 0-5, 0-10 VDC 0–20mA, 4–20mA (3 wires) RS485
Supply Voltage	15 ≤ VAC ≤ 27 18 ≤ VDC ≤ 38
Load Resistance	Current output: R ≤ 500Ω
Current Consumption	1.7 W
OPERATING CONDITIONS
Operating Temperature	Probe: -30 to +85°C Housing: -30 to +70°C Storage: -40 to +70°C
Operating Humidity	Probe: 0–100% RH Housing: 0–100% RH Storage: 0–100% RH
MECHANICAL SPECIFICATIONS
Ingress Protection Sensor	IP67
Material	Housing: Aluminium die casting Probe: Delrin
Electrical Connections	Screw terminals
Dimensions	Housing: 120 x 120 x 49.5 mm Probe: L=100mm, ø19mm
Weight	450g