WR285

 Digital Relative Humidity Transmitter - Remote Probe for Pressurised Applications up to 30 bar (400 psi)
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 (400 psi) pressure
  • Analogue and digital output standard
  • Interchangeable probe
  • Analogue output signals selectable through software
  • Metric or US measurement units selectable through software
  • Can withstand temperatures up to 120°C
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, 0–5, 0–10 V
0–20 mA, 4–20 mA, RS485
Supply Voltage 15 - 27 V AC / 18 - 38 V DC
Load Resistance Current output: R ≤ 500 Ω
Power consumption 1.7 W
Operating conditions
Operating Temperature
   Probe
   Housing
   Storage
-30 to +120°C
-30 to +70°C
-40 to +70°C
Mechanical specification
Ingress Protection Sensor IP67
Material
   Housing
   Probe
Aluminium die casting
Stainless steel
Dimensions
   Housing
   Probe
120 x 120 x 51mm
L=148mm, ø18mm
Weight 450g
Electrical Connections Screw terminals