產品品牌：

MICHELL

產品型號：

WM291

外形尺寸：

120 x 120 x 49.5 mm mm

環境溫度：

-30 to +85°C ℃

電源電壓：

24 V

準確度：

2

測量范圍：

0-100%

外形尺寸：

120 x 120 x 49.5 mm

溫濕度傳感器WM291

WM291 relative humidity transmitters include the interchangeable HYGROSMART module. The interchangeable module lets you recalibrate the transmitter simply by replacing the sensor head with the HYGROSMART module. As a result, maintenance costs are greatly reduced and machine down time is minimized.

Product Features

• Humidity and temperature output signal: selectable through software
• Digital output: RS485 (MODBUS)
• Protection: IP65
• Interchangeable HYGROSMART module
• Linearised and temperature compensated humidity measurement

• 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 <10 sec typical (for 90% of the step change) ELECTRICAL INPUT/OUTPUT Output Signal 0–1 VDC, 0–5 VDC, 0–10 VDC 0–20mA, 4–20mA (3 wires) RS485 Supply Voltage 15 ≤ VAC ≤ 27 18 ≤ VDC ≤ 38 Load Resistance Current output: R ≤ 500 Ω Current Consumption 1.7 W OPERATING CONDITIONS Operating Temperature Probe: -30 to +85°C Housing: -20 to +70°C Storage: -30 to +70°C Operating Humidity Probe: 0–100% RH Housing: 0–100% RH Storage: 0–100% RH MECHANICAL SPECIFICATIONS Ingress Protection Sensor IP65 Housing 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 Display Resolution LCD, 2 lines x 16 characters