Description
The HygroFlex3 Advanced series is ideal for all applications where good accuracy measurement of humidity and temperature is of critical importance. The transmitters is designed for fixed installation and is suitable for HVAC and light industrial application.
Specification
| General |
Description |
| Device type |
Humidity and Temperature Transmitter |
| Range of application |
0…100%rh (non-condensing)-10…60 °C with display-40…85 °C without display |
| Mounting type |
Wall, Cable (2m), Duct |
| Circuit type |
2-wire: HF3A-23-/4-wire: HF3A-3 & HF3A-D |
| Psychometric Calculation |
•Dew point (DP)•Frost point (FP)•Wet bulb temperature (Tw)•Enthalpy (H)•Vapor concentration (Dv)•Specific Moisture (Q)•Mixing ratio (R)•Vapor concentration at saturation (Dvs)•Vapor partial pressure (E)•Vapor saturation pressure (Ew)•Volume mixing ratio |
| Digital Interface |
Description |
| Interface |
Via NFC and USB |
| RS485 |
Half duplex, baud rate adjustable (only digital version) |
| Software compatibility |
HygroSoft Software |
| Protocol |
Description |
| Modbus RTU |
RS485 Interface (only digital version) |
| Power supply and connections |
Description |
| Supply voltage |
HF3A-2: 10…28 VDCHF3A-3/D: 18…36 VDC |
| Current consumption |
HF3A-2: 2×23 mAHF3A-3/D: < 50mA |
| Polarity protection |
Yes |
| Humidity Measurement |
Description |
| Sensor |
ROTRONIC Hygromer ® HT-1 |
| Measurement Range |
0…100%rh |
| Accuracy @23°C |
± 1.2%rh |
| Repeatability |
± 0.5%rh |
| Long Term Stability |
<1 %rh / year |
| Sensor Response Time |
Typically 10 sec, for 63 % of 35 to 80 %rh step change (1 m/s wind speed at sensor) |
| Temperature Measurement |
Description |
| Temperature |
Pt100 1/3 class B |
| Measurement Range |
Wall1 -10…60 °C (with display), -40…85 °C (without display) |
| Duct2 / Cable: -50…100°C |
| Accuracy @23°C |
± 0.1 °C |
| Repeatability |
± 0.05 °C |
| Long Term Stability |
<0.1 °C / year |
| Sensor Response Time |
Typically 4 sec, for 63 %rH of a step change (1 m/s wind speed at sensor) |
| Analog Output |
Description |
| Quantity |
2 |
| Assignment |
Outputs can be freely assigned to each measured temperature value. |
| Default setting assignment |
Output 1 = HumidityOutput 2 = Temperature |
| Standard Ranges |
HF3A-2: 4…20 mA |
| HF3A-3 / HF3A-D: 0…20 / 4…20 mA 0…1 /0…5 / 0…10 V |
| Default setting Ranges |
4…20 mA |
| Measuring signal |
Freely scalable |
| Accuracy @ 23 °C |
Current output: ± 20 µAVoltage output: ± 1/5/10 mV |
| Measurement Interval |
1 s |
| Short-circuit protection |
Yes |
| Load compensation |
HF3A-2: Automatically |
| HF3A-3 / HF3A-D: Configurable |
| Load resistance |
max. current output: 0 to 500 Ωmin. voltage output: 1 kΩ/ per volt scaling |
| Resolution |
15 bit |
| Self-heating |
HF3A-2: max. 0.2 °CHF3A-3/D: max. 0.1 °C |
| Alarms |
Description |
| Assignment |
Alarms can be assigned to any measured value |
| Alarm thresholds |
High-Alarm, Upper Alarm thresholdLow-Alarm, Lowest Alarm threshold |
| Hysteresis |
For Low-Alarm and High-Alarm |
| Alarm indication on display |
All Alarms |
| Alarm trigger |
Low- or High-Alarm |
| Housing Specifications |
Description |
| Dimensions |
Cable: 122 x 82 x 40.5 mm (Housing), 144 x 15 mm (Probe)Wall: 122x172x40.5mm (Housing + Probe)Duct: 122x82x265.5mm (Housing + Probe) |
| Weight |
Wall: 204gDuct: 226gCablle: 332g |
| Housing material |
PC-ABS |
| IP protection |
IP653 |
| Cable Connections |
1x M12, screw terminals (2 x M12 for HF3A-D) |
| Conformity with standards |
Description |
| EMC directives |
EMC-Directive 2014/30/EU:
EN 61000-6-1EN 61000-6-2EN 61000-6-3EN 61000-6-4EN 61326-1 |
| Soldering material |
Lead free (RoHS-Directive 2011/65/EU) |
| Fire protection class |
Housing material UL94-HBCable gland UL94-V2 |
| FDA/GAMP directives |
GAMP5 |
1 The measurement range for the wall-mount unit is limited due to the proximity of the probe to the transmitter electronics.
2 The full measurement range of the duct mount unit can only be utilized if the transmitter electronics operate within the given application range.
3 IP65 is only fulfilled, when the necessary number of conductors is used so that the M12 cable strain provides an effective seal
