This file is the User Guide of HygroFlex HF732A Humidity Temperature Transmitters, which introduces the product overview, mechanical configurations and dimensions, general description, user configurable settings and functions, mechanical installation, electrical installation, operation, etc.
The manual applies to all instruments of the HF7 series with firmware version 3.2-1 or higher. The HF7 transmitter series are designed for fixed installation in industrial applications, measuring relative humidity and temperature while optionally calculating dew or frost point.
The document details mechanical configurations, power supply requirements (ranging from 15 to 40 VDC), measured parameters using a Hygromer HT-1 capacitive sensor and Pt100 RTD, and various user-configurable settings via the ROTRONIC HW4 software. It also provides instructions for electrical installation, operation modes including simulator mode and fail-safe mode, maintenance procedures like cleaning dust filters, and technical specifications.
| Measured Humidity Range | 0 to 100 %RH |
|---|---|
| Measured Temperature Range | -100 to 150 °C |
| Electronics Operating Range | -40…85 °C |
| Power Supply (AC) | 13 to 28 VAC |
| Maximum Current Consumption (DC) | 100 mA |
| Maximum Current Consumption (AC) | 250 mA |
| Humidity Sensor Type | ROTRONIC Hygromer HT-1 capacitive sensor |
| Temperature Sensor Type | Pt100 RTD |
This manual applies to all instruments of the HF7 series with firmware version 3.2-1 or higher.
Yes, using the ROTRONIC HW4 software, the HF7 can be configured to calculate either the dew point or the frost point.
The HF73 will operate with a minimum of 6 VDC or 5 VAC when configured for 0…1 V outputs.
The service connector is a UART digital interface with a mini-USB type connector.