Rotronic XB32A Humidity and Temperature Transmitter
Rotronic XB32A Humidity & Temperature Transmitter – High-Accuracy Probe, PCB Module (0–100% RH / –100…200°C)
Compact PCB-mounted industrial transmitter with PPS probe, ±1% RH accuracy, analog outputs, and extended temperature limits up to –100…200°C at probe. Ideal for climate chambers, incubators, and challenging industrial environments.
The Rotronic XB32A is a high-precision humidity and temperature transmitter designed for OEM and industrial environments. With a PPS probe, fully open PCB design, robust HYGROMER® HT-1 sensor, and wide operating limits, it delivers reliable measurement performance even in extreme conditions such as climate chambers and high-temperature ducts.
KEY FEATURES
±1% RH accuracy at 23°C
±0.2°C temperature accuracy at 23°C
Operating (electronics): –40…85°C
Probe limit: –100…200°C
Analog outputs: 0–1 V, 0–5 V, 0–10 V, 0–20 mA, 4–20 mA
Measures: RH, Temperature, Dew Point/Frost Point
Fast response with Hygromer® HT-1 sensor
Data refresh rate: 1.7 s typical
User-configurable scaling (–999…9999 units)
User calibration (multi-point) enabled
FDA 21 CFR Part 11 & GAMP compatible
IP65 protection with filter installed
UART service interface (Mini-USB) for configuration (HW4 Software)
Simulator mode for loop testing
TECHNICAL SPECIFICATIONS
Measurement Specifications
| Parameter | Specification |
|---|---|
| RH Range | 0…100% RH |
| RH Accuracy | ±1.0% RH @ 23°C |
| RH Repeatability | 0.3% RH |
| Temp Range | –100…200°C (probe) |
| Temp Accuracy | ±0.2°C @ 23°C |
| Dew/Frost Point | User-selectable |
| Long-Term Stability | <1% RH / year |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 15…40 VDC or 13…28 VAC |
| Output Types | 0–1 V, 0–2 V, 0–5 V, 0–10 V, 0–20 mA, 4–20 mA |
| Max Load (Current Output) | 500 Ω |
| Min Load (Voltage Output) | 1–10 kΩ (depends on output range) |
| Power Consumption | <50 mA |
| Digital Interface | UART via Mini-USB (Service) |
Environmental Limits
| Condition | Specification |
|---|---|
| Operating (electronics) | –40…85°C |
| Storage | –50…70°C |
| Probe Temp | –100…200°C |
| Humidity | 0–100% RH (non-condensing) |
| Max Air Velocity | 40 m/s |
Mechanical
| Parameter | Specification |
|---|---|
| Probe Material | PPS Ø15 mm |
| Probe Lengths | 100 mm / 250 mm |
| Cable | 2 m (standard) |
| PCB Mounting | 4 × 4.4 mm mounting holes |
| Weight | ~225 g |
APPLICATIONS
Climate chambers
Stability chambers
Incubators
HVAC & cleanrooms
Industrial process monitoring
Compressed air dryers
OEM integration boards
High-temperature RH measurement zones
WHAT’S IN THE BOX
Rotronic XB32A transmitter module
PPS probe with 2 m cable
Dust filter (depending on model)
Quick configuration guide
FAQS
Q1. What is the measurement range of XB32A?
It measures 0–100% RH and –100 to 200°C at the probe.
Q2. What analog outputs are available?
0–1 V, 0–5 V, 0–10 V, 0–20 mA, 4–20 mA (user-configurable).
Q3. Is it suitable for wall or duct mounting?
Yes—using Rotronic mounting accessories (compression fitting, flange).
Q4. Does it support dew/frost point calculation?
Yes—dew or frost point is user-selectable via HW4 software.
Q5. Can it be configured through PC?
Yes—via the UART Mini-USB service connector using HW4.