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Measures Temperature, Duct Mount 2-wire (loop powered), 10 to 28VDC, 4...20mA
In combination with advances in sensor technology and integration, the Rotronic HygroFlex3-series provides superb precision and state-of-the-art functionality, taking humidity, temperature and dew point measurements to a whole new level of performance and reliability (less than 2 %rh / 0.3 K).
The Rotronic HygroFlex3-series is highly flexible with two freely selectable and scalable analog outputs. The analog outputs are assignable to relative humidity, temperature or dew point with 2-wire or 3/4-wire systems. Two integrated relay contacts are available to convert the transmitter to a thermostat / hygrostat. Thanks to the high long-term stability of the sensors and auto- diagnostics, the transmitters are both service-friendly and reliable and will save you time and money.
AirChip3000 Technology
AirChip3000 technology compensates humidity and temperature over 30,000 reference points, has a 2000 data point memory, calculates dew/frost point, has sensor auto-diagnostics and automatic correction. AirChip3000 also includes active alarming and information, as well as ASIC (Application Specific Integrated Circuit); micro-controller and EEPROM on one chip.
Rotronic HygroFlex3-series Outputs
The highly flexible HygroFlex3-series allows the user to freely select the analog outputs by entering the type of output signal and scale. Switch actuation points for relative humidity and temperature are easily set using a potentiometer for the relay outputs option.
Rotronic HygroFlex3-series Applications
The HygroFlex3-series transmitter is ideal for all applications where exact humidity and temperature measurement is critical. The transmitters can be used in a variety of fields including:
| Integrated sensors | Yes |
| Humidity sensor | ROTRONIC Hygromer® IN-1 |
| Temperature sensor | Pt100 Class A |
| Accuracy at 23 ±5 °C | ±2.0 %rh / 0.3 K (±1.0 %rh / 0.1 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: 18…40 VDC/13…28 VAC |
| Power consumption | HF32: max 40 mA, other models <150 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; 2 points |
| Data logging | Internal, 2000 data point memory |
| Dew point /Frost point 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, 2014/30/EU |
| Audit trail, Electronic Records | FDA CFR21 Part 11 and GAMP compliant |
| IP protection rating & fire protection class | IP65 / Corresponds to UL94-HB |
| Integrated sensors | Yes |
| Humidity sensor | ROTRONIC Hygromer® IN-1 |
| Temperature sensor | Pt100 Class A |
| Accuracy at 23 ±5 °C | ±2.0 %rh / 0.3 K (±1.0 %rh / 0.1 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: 18…40 VDC/13…28 VAC |
| Power consumption | HF32: max 40 mA, other models <150 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; 2 points |
| Data logging | Internal, 2000 data point memory |
| Dew point /Frost point 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, 2014/30/EU |
| Audit trail, Electronic Records | FDA CFR21 Part 11 and GAMP compliant |
| IP protection rating & fire protection class | IP65 / Corresponds to UL94-HB |
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