HygroSmart PR Series  HygroSmart

Advanced Pressurized Remote Probe Relative Humidity Transmitter

The PR Series advanced pressurized remote probe transmitter is designed to reliably measure moisture in specialized higher pressure/temperature process applications.

This rugged and flexible transmitter features the new generation HygroSmart USTE interchangeable remote sensor — minimizing downtime and reducing maintenance costs.


Product Features

  • Accuracy ±2% RH
  • Flexible analog output configurations
  • Interchangeable probe for rapid maintenance
  • Digital RS485 ModBus multidrop output
  • Rugged heavy industrial housing
  • Traceable 5-point calibration certificate
  • 30 bar pressure rating
  • Operating temperature –40 to +120°C


Click here to download Digicor 2 Configuration Kit Application Software

This single application software provides customers the following features..
  • Enables reconfiguration of any measured or calculated variable within the transmitter
  • Provides a simple data logging software
  • Processes logged data in a useable Windows based spreadsheet

It is applicable to all 280/290 Transmitter variants as detailed below

WM281/WM291 Advanced Wall Mount Relative Humidity & Temperature Transmitter
DT282/DT292 Advanced Duct Mount Relative Humidity & Temperature Transmitter
DT284/DT294 Advanced Duct Mount Relative Humidity & Temperature Transmitter
WR283/WR293 Advanced Remote Probe Relative Humidity & Temperature Transmitter
PR285 Pressurized Remote Probe Relative Humidity & Temperature Transmitter
 PR285XP

Technical Specification
Product PR285
Performance Specifications
RH measurement range 0 to 100% RH
RH accuracy @ 23°C ±2% RH (5 to 95% RH)
RH measurement response time <10 seconds
RH element H8000
Electrical Specifications
Output signals 0–1 V, 0–5 V, 0–10 V, 4–20 mA, 0–20 mA
Supply voltage range 15 to 21 V AC or 18 to 30 V DC
Power consumption 1.7 W max
CE conformity2004/108/EC, 94/9/E
Communication kit (optional) Digicor2 280/290 software, USB to RS485 interface cable (Digicor2-CK-01)
Operating Specifications
Operating temperature UTSE probe: –40 to +120°C
UTSE cable: –40 to +120°C
Housing: –30 to +70°C
Storage: –40 to +70°C
Mechanical Specifications
Ingress protection IP65 (NEMA 4 level)
Material USTE probe: Stainless steel
USTE cable: PTFE white
Housing: Aluminum die casting
Dimensions USTE probe:L=148mm, ø18mm
USTE cable: L=2m (optional extra 2m)
Housing: 120 x 120 x 49.5mm
Weight 450g (approx)
Electrical connections Internal screw terminals

Related Products
WM Series HygroSmart WM Series
Advanced ∅19mm wall mount relative humidity and temperature transmitter with voltage, current loop, or RS485 Modbus RTU outputs. Optional integrated display.
WR Series HygroSmart WR Series
Advanced ∅12mm remote probe relative humidity and temperature transmitter for higher temperature applications. Voltage, current loop, or RS485 Modbus RTU outputs
DT Series HygroSmart DT Series
Advanced ∅12mm or ∅19mm duct mount relative humidity and temperature transmitter for high temperature applications. Voltage, current loop or RS485 Modbus RTU outputs. Optional integrated display.
DT722 DT722
∅19mm fixed probe for high temperature applications. Current loop outputs. Optional integrated display.