Downloads
Description
The HygroFlex HF3A Advanced Humidity and Temperature Transmitter from Rotronic is ideal for all applications where the exact measurement of humidity and temperature is required. The HF3A can also provide Psychrometric calculations, eg. Wet Bulb, Vapour Saturation Pressure, Enthalpy, etc. The HF3A is a direct replacement for the older HygroFlex HF3 Transmitter
Applications
- Humidity and Temperature Monitoring
- HVAC systems for office buildings and storage rooms
- Climate monitoring for greenhouses and swimming pools
- Light industrial manufacturing including electronics manufacturing, packaging, and small-scale assembly lines
Features
- Integrated HygroClip Advanced probe
- Relative humidity, temperature, dew point or other psychrometric parameter
- Wall, Duct and Cable Mounted versions
- NFC-Interface for communication with the device
- Firmware updates over NFC-Interface and HygroSoft Software
- LED on front displays operating status of the device
- Optional LCD display with trend indicator, LED Status and backlighting
- Optional digital version with RS485 digital Interface and Modbus RTU communication protocol
- Two analogue output signals, freely selectable and scalable
- New robust IP65 housing, high immunity to dust and moisture within the device
Specifications
| HF3A-2 2-wire |
HF3A-3 / HF3A-D 3/4-wire |
|
|---|---|---|
| Hygroclip Probe | Fixed Humidity and Temperature mounted | |
| Accuracy at 23°C | ±1.2%RH, ±0.1°C | |
| Initialisation Time | Typically, 5 sec. | |
| Measurement Range | Wall-Mounted Version: -10…60 °C / Cable or Duct-Mounted Version: -50…100 °C, Humidity 0…100%RH | |
| Trend Indicator | Yes | |
| Display Resolution | Resolution up to 2 decimal places (0.01) | |
| Output Signals Analogue | 4…20mA | Freely scalable 0…1, 0…5, 0…10V, 0…20mA, 4…20mA |
| Resolution Analogue Output | ≥ 15 bit | |
| Output Signals Digital | N/A | RS485 signals on screw terminal |
| Cable Connections | 1 x M12 screw terminals, (2 x M12 for HF3A-D) | |
| Psychrometric Calculations | All | |
| Power Supply | 10..28vDC | 18…36vDC |
| Circuit Type | 2-wire |
3-wire with mounted jumper J1 (default) 4-wire galvanically separated with unmounted |
| Current Consumption | 2 x 23mA | <50mA |
| Load per analogue output | Max. 500 Ω | |
| Interface | NFC Interface and USB, via Rotronic Software | |
| Software | HygroSoft Software | |
| Housing Material | PC-ABS | |
| Standards | CE Conformity 2014/30/EU | |
| Dimensions | Wall: 122 x 172 x 40.5 mm Duct: 122 x 82 x 265.5 mm Cable: 122 x 82 x 40.5 mm (Housing only) , 144 x 15 mm (Probe only) |
|
| Weight | Wall: 204 g Duct: 226 g Cable: 332 g |
|
| IP-protection | IP65 | |
| Soldering material | Lead free (RoHS-Directive 2011/65/EU) | |
Standard transmitters are available below. Others available on request.
