Rotronic PC-Series Humidity Probes

General Description

The Rotronic PC-Series humidity probes are designed for versatile installation across various applications. For detailed information and access to the online manual, users can visit www.processsensing.com or www.rotronic.com.

Mounting Instructions

Probes can be mounted on walls or in ducts. For wall mounting, the sensing element should face downwards to minimize heat transfer. For duct mounting, the sensor's filter end must be perpendicular to the airflow for accurate humidity measurement. Additional openings may be required for checks and calibration.

Wiring and Outputs

The PC-Series offers various models (PC33, PC52, PC62, PC62V, PCMini52) with different output signals:

• Voltage Output: Typically uses White (V+), Yellow (Temp+), Brown (Ground), Green (RH+).
• 4-20 mA (2-wire): Common wiring includes White (RH+), Yellow (Temp-), Brown (RH-), Green (Temp+).
• Digital RS485/Modbus: Wiring involves White/Brown (V+), Yellow/White (RX/TX-), Brown/Black (Ground/Modbus), Green/Blue (TX/RX+/V-).

Specific wiring configurations vary by model.

Technical Specifications

Key specifications include:

• Probe Types: Analog and Digital relative humidity and temperature measurement.
• Measuring Range: -20 to 80 °C / 0 to 100 %rh.
• Accuracy: Varies by model, e.g., ±3%rh (PC33) or ±2%rh (PC52, PC62, PCMini52) at 23°C, with temperature accuracy typically ±0.3 K or ±0.2 K.
• Long-term Stability: Less than 1%rh per year.
• Housing: Molded polymer or stainless steel.
• IP Rating: IP65.
• Output Signals: 4-20 mA, 0-1 V, 0-5 V, 0-10 V, RS485, RS232, Modbus RTU.
• Power Supply: Ranges from 5-35 VDC depending on the output signal.
• Power Consumption: Typically <2 mA for voltage output, 4 mA for current output.