Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter

Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter

Rotronic's HygroFlex HF3 transmitters are the latest developments in HVAC transmitters for relative humidity, temperature and dew point measurement.

Rotronic HF3 transmitters are available in duct, wall and compact space variations. The HF3 duct and wall mount versions are suited for HVAC humidity and temperature applications and the space mount version is ideal for measurement in offices and rooms where design is important.

Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter - Features

  • Accuracy: ±2%rh / ±0.3K at 23°C ±5K
  • Temperature limit at probe: -40 to 60°C / 0 to 100%rh
  • Range of application electronics: -40 to 60°C / 0 to 100%rh, -10 to 60°C with LCD
  • Use as simulator for system validation*
  • Service interface
  • Adjusted at 23°C and 10, 35, 80%rh
Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter - Duct & Wall Versions
2 or 2x2-wire
Part Ref HF320 Type W/D
Output Signals 4 to 20mA
Supply Voltage 10 to 28VDC
3/4-wire
Part Ref HF33x Type W/D
Output Signals

0 to 1V

0 to 5V

0 to 10V

0 to 20mA

4 to 20mA

Customer rescaling possible

Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter - Space Mount Version
2 or 2x2-wire
Part Ref HF320 Type S HF320 Type R
Output Signals 4 to 20ma
Supply Voltage 10 to 28VDC
Display Optional (without backlight)
3/4-wire
Part Ref HF33x Type S HF33x Type R
Output Signals

0 to 1V

0 to 5V

0 to 10V

0 to 20mA

4 to 20mA

Customer rescaling possible

Supply Voltage

18 to 40VDC

13 to 28VDC

Display Optional (with backlight)
Temperature Range Scalable
Probe Fixed Internal Retractable
Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter - Technical Specification
Part Ref

HF320

Analog 2-wire

HF33x

Analog 3/4-wire

Parameters Humidity & Temperature
Calculated Parameters Dew/Frost Point
Housing Material / Protection ABS / IP65, except type R/S IP20
Dimensions

Type W - 101mm x 182mm x 43mm

Type D - 103mm x 82mm x 278mm

Type S - 82mm x 82mm x 27mm

Type R - 120mm x 82mm x 27mm 

Weight 140g
Probe Material  Polycarbonate
Probe Connection Fixed, type R retractable
Filter Material Polyethylene
Display (only Type R/S) LCD, 1 or 2 decimals without backlight LCD, 1 or 2 decimals with backlight
Electrical Connections Type D/W: screw terminals inside, M16 cable gland
Current Consumption 2x20mA max

<60mA DC / < 150mA AC  (Type W/D)

<100mA DC / <250mA AC (Type R/S)

Application Temperature Housing / Electronics

-40 to +60ºC / -10ºC to 60ºC (with LCD)

0 to 100%RH

Firmware Upgrade Via HW4 software
Service Interface UART service interface (Universal Asynchronous Receiver Transmitter)
CE/EMC Compatibility EMC Directive 2004/108/EC
Fire Protection Class Corresponds to UL94-HB
FDA / GMP Conformity Conforms to 21 CFR Part 11 and GAMP5

 

Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter
Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter
Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter

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Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter
Rotronic HF3 Series - HygroFlex Humidity & Temperature Transmitter

Heat Tracing - Thorne & Derrick