WR285

 Digital Relative Humidity Transmitter with Remote Probe for Pressurised Locals
The WR285 relative humidity sensor uses the HYGROSMART module, integrated in the interchangeable probe. This device can be used in high-temperature applications due to the remote measurement element and its small overall size. The interchangeable probe allows for simple recalibration and lower maintenance costs.






Product Features

  • Up to 30 bar pressure
  • Analog and digital output standard
  • Interchangeable probe
  • Analog output signals selectable through software
  • Metric or imperial measurement units selectable through software
 WR285

Technical Specification
Performance
Measurement Range (RH) 0-100% RH
Accuracy at 25°C
Humidity		 <±2% RH (5–95% RH)
Stability - RH Sensor <±1% RH/year
Response Time - RH Sensor <10 sec typical (for 90% of the step change)
Electrical output/input
Output Signal 0–1 VDC, 0–5 VDC, 0–10 VDC
0–20 mA, 4–20 mA, RS485
Supply Voltage 15 ≤ VAC ≤ 27 / 18 ≤ VDC ≤ 38
Load Resistance Current output: R ≤ 500 Ω
Power consumption 1.7 W
Operating conditions
Operating Humidity
   Probe, Housing, Storage
0–100% RH
Operating Temperature
   Probe
   Housing
   Storage
-30 to +120°C / -22 to +248°F
-30 to +70°C / -22 to +158°F
-40 to +70°C / -40 to +158°F
Mechanical specification
Ingress Protection Sensor IP67
Material
   Housing
   Probe
Aluminium die casting
Stainless steel
Dimensions
Housing
Probe
120 x 120 x 51mm / 4.72 x 4.72 x 2.00"
L=148mm, ø18mm / L=5.83", ø0.71"
Weight 450g / 15.87oz
Electrical Connections Screw terminals