Image unavailable
Image unavailable
Rotronic
Rotronic HygroFlex5-Series Humidity Transmitters
Quote on request
No online payment · add lines to RFQ BOM
HF5 RH/T transmitters; HC2A probes; 0/4–20 mA; RS-485. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measurement
Relative humidity, temperature, dew/frost point and other psychrometric calculations
Probes
Interchangeable HC2A / HygroClip2 Advanced probes
Accuracy At 23C
Probe-dependent; typically <0.8 %rh and <0.1 °C with suitable probe
Analog Outputs
2× freely scalable 0–1/5/10 V or 0/4–20 mA
Variants
HF52 2-wire; HF53/54/56 3/4-wire; galvanic isolation options; HF56 mains
Digital
Optional RS-485 / USB / LAN / WLAN
Fits precision humidity transmit where you need a Rotronic HygroFlex5 (HF52/53/54/56) with interchangeable HC2A probes, dual scalable analog outputs, and optional digital interfaces.
Key advantages
- Measurements — RH, temperature, dew/frost point and psychrometric calcs
- Probes — Interchangeable HC2A / HygroClip2 Advanced
- Accuracy — Probe-dependent; typically <0.8 %rh and <0.1 °C class
- Analog — 2× freely scalable 0–1/5/10 V or 0/4–20 mA
- Variants — HF52 2-wire; HF53/54/56 3/4-wire; optional RS-485/USB/LAN/WLAN
Typical applications
- HVAC precision humidity transmit.
- Cleanroom RH/T monitoring.
- Dew-point calculated control loops.
Selection guide
- HF52 vs HF53/54/56 — 2-wire vs 3/4-wire
- Probe — HC2A accuracy class
- Outputs — V vs mA
- Digital — Bus/WLAN need
Common mistakes
- Probe not matched to electronics range.
- Ignoring condensation at high RH.
- Wrong 2-wire vs 3/4-wire powering.
When to RFQ / what to tell us
- HF variant, probe, outputs.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 31358 |
| Brand | Rotronic |
| Model | HygroFlex5-Series Humidity Transmitters |
| Product type | Humidity Transmitter |
| Measurement | Relative humidity, temperature, dew/frost point and other psychrometric calculations |
| Probes | Interchangeable HC2A / HygroClip2 Advanced probes |
| Accuracy at 23C | Probe-dependent; typically <0.8 %rh and <0.1 °C with suitable probe |
| Analog outputs | 2× freely scalable 0–1/5/10 V or 0/4–20 mA |
| Variants | HF52 2-wire; HF53/54/56 3/4-wire; galvanic isolation options; HF56 mains |
| Digital | Optional RS-485 / USB / LAN / WLAN |
| Electronics range | HF520 −25…60 °C / 0…100 %rh; HF53/54/56 −40…60 °C / 0…100 %rh |
Documents
FAQ
Q: Probe type? A: Interchangeable HC2A / HygroClip2 Advanced.
Q: Analog outs? A: Two freely scalable V or mA outputs.
Q: What should I send for a quote? A: Variant/probe/outputs, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measurement | Relative humidity, temperature, dew/frost point and other psychrometric calculations |
| Probes | Interchangeable HC2A / HygroClip2 Advanced probes |
| Accuracy At 23C | Probe-dependent; typically <0.8 %rh and <0.1 °C with suitable probe |
| Analog Outputs | 2× freely scalable 0–1/5/10 V or 0/4–20 mA |
| Variants | HF52 2-wire; HF53/54/56 3/4-wire; galvanic isolation options; HF56 mains |
| Digital | Optional RS-485 / USB / LAN / WLAN |
| Electronics Range | HF520 −25…60 °C / 0…100 %rh; HF53/54/56 −40…60 °C / 0…100 %rh |
| Protection | IP65 |
| Power | HF52 10–28 VDC; HF53 15–40 VDC / 12–28 VAC; HF54 9–36 VDC; HF56 85–240 VAC |
| Compliance | FDA 21 CFR Part 11 / GAMP compatible with HygroSoft/HW4 |