WR293

 Digital Relative Humidity and Temperature Transmitter - Remote Probe for High Temperatures
The WR293 relative humidity transmitter uses the Hygrosmart module, integrated in the interchangeable probe and cable. 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

  • Three outputs
  • Analogue and digital output standard
  • Interchangeable probe
  • Analogue output signals selectable through software
  • Metric or US measurement units selectable through software
  • Available with calculated absolute humidity, dew-point, frost point, mixing ratio or specific enthalpy output
  • Can withstand temperatures up to 200°C
WR293

Technical Specification
Performance
Measurement Range (RH) 0-100% RH
Measurement Range (T) -30 to +200°C
Accuracy at 23°C
Humidity		 <±2% RH (5–95% RH)
Accuracy at 23°C
Temperature		 ±0.4°C
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 +200°C
-30 to +70°C
-40 to +70°C
Mechanical specification
Ingress Protection Sensor IP65 (NEMA 4 level)
Material
   Housing
   Probe		 Aluminium die casting
Stainless steel
Dimensions
   Housing
   Probe		 120 x 120 x 51mm
L=134mm, ø12mm
Weight 450g
Electrical Connections Screw terminals
Display Resolution LCD, 2 lines x 16 characters