This document is the manual for PF4 / PF5 differential pressure, humidity and temperature transmitters. It introduces the use methods, functions and characteristics of the product.
The document provides comprehensive instructions for the Rotronic PF4/PF5 Differential Pressure, Humidity and Temperature Transmitter. It details the device's variants, including options with flow-based or diaphragm sensors, as well as optional connections for HygroClip2 probes or Pt100 temperature sensors.
Key sections include preparation and installation guidelines (wall mounting, DIN rail adapter), electrical connection specifications, and step-by-step configuration via the on-board menu. The manual also covers technical data, alarm settings, relay configurations, and communication protocols such as Ethernet and RS485.
| Display | TFT color LCD, 180 * 270 pixels |
|---|---|
| Enclosure material | ABS |
| IP protection class (without Ethernet) | IP65 |
| Dimensions | 129 mm x 72 mm x 45 mm |
| Weight (excl. packaging) | 243 g |
| Startup time | < 5 s |
| Measurement interval | 1 s |
| Supply voltage (Galvanically isolated) | 18 ... 48 VDC / 16 ... 35 VAC, 50/60 Hz |
| Rated current consumption | < 300 mA / 24 VDC |
The device offers high-precision measurement, short response time, low hysteresis, a color TFT LCD display, and freely configurable analog input/output signals.
The device can operate at altitudes up to 2,000 meters above sea level.
The transmitter supports Ethernet (optional), RS485 (optional), and Modbus protocols (TCP or RTU depending on the interface).