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The Rotronic HygroFlex3 measurement range is -40 to 140ºF (-40 to 60ºC) / 0 to 100%RH with the accuracy of ±2 %RH / 0.3ºC at 23±5ºC.
The HF3 transmitter is designed for fixed installation and it comes with an AirChip3000 chip inside the unit. The chip allows the instrument to achieve a degree of accuracy not seen before. The HF3 transmitter with the combination of advances in sensor technology and integration provides superb precision and state-of-the-art functionality, taking humidity, temperature and dew point measurement to a whole new level of performance and reliability (< 2 % rh / 0.3 K).
Highly versatile |
HF32 2-wires | HF33 3/4-wires | HF34 Hygro-/Thermostat | |
Integrated sensors | Yes | ||
Humidity sensor | ROTRONIC Hygromer® IN-1 | ||
Temperature sensor | Pt100 1/3 Class B | ||
Accuracy at 23 ±5 °C | ±2.0 %rh / 0.3 K (±1.0 %rh / 0.2 K Type R) | ||
Resolution AirChip3000 | <0.02 %rh / 0.01 K | ||
Long-term stability humidity sensor | <1 %rh / year | ||
Response time τ 63 | <10 s | ||
Measurement range | -40…60 °C / 0…100 %rh | ||
Electronics operating range | -40…60 °C / 0…100 %rh (-10…60 °C with LCD) | ||
Display (Space version only) (HF32S: no backlight) | Graphic LCD Parameters freely configurable | ||
Alarm functions (programmable) | Open or shorted sensor | ||
Output signals | Freely scalable by user 0...1 V, 0...5 V, 0...10 V, 0(4)...20 mA | ||
Change in signal type | HF33 only | ||
Power supply | HF32: 10...28 VDC: 10 V + (0.02 x load) HF33: 15…40 VDC/12…28 VAC HF34: 8…40 VDC /6…28 VAC | ||
Power consumption | HF32: max 40 mA, other models < 100 mA | ||
Circuit type | HF32: 2 x 2 wires, HF33: 3/4 wires | ||
Min. / Max. load | V-signal:≥1 kΩ/V / mA signal: ≤ 500 Ω | ||
Firmware update | Via service connector, requires HW4 software | ||
Sensor diagnostics (Drift, state) | Programmable. Default: off | ||
Sensor protection | Polyethylene filter | ||
Max. air velocity | 20 m/s at probe | ||
Adjustments | Via ROTRONIC accessories Humidity: multi point; temperature: 2 points | ||
Hygro- /Thermostat | 2 Relays, HF34 only | ||
Data logging | Internal, 2000 data point memory | ||
Dewpoint /frostpoint calculation | Yes | ||
PC interface (service connector) | With ROTRONIC interface cable, HW4 compatible | ||
Housing material / weight | ABS / approx. 120g | ||
Cable connections | 1 x M16x1.5, on terminals | ||
Standards | CE- compliant, 2007/108/EG | ||
Audit trail, Electronic Records | FDA CFR21 Part 11 and GAMP compliant | ||
IP protection rating & fire protection class | IP65 / Corresponds to UL94-HB |
Outputsof the HygroFlex3
Dimensions
Ordering Codes
Notes:
- • Output 1: relative humidity or dew point
- • Output 2: temperature
- • The dew / frost point range uses the same unit (C or F) as the temperature output. The factory default setting is frost point below freezing
- • Custom range: be sure to clearly specify the desired range at the time of the order. When a special range has been ordered, the letters ST, XSC or S are used in columns 4, 6 or 7 in the above table. These generic codes will be replaced with a specific code only for quantity and repeat orders
- • Use column 4 to specify the unit system (M or E) when temperature is not one of the analog outputs
HF3 duct version For use in ventilation shafts |
| HF3 space version For use in offices and rooms where appearance is important |