User Manual

E-M-HF4-V1_22

Rotronic AG

Bassersdorf, Switzerland

Document code

Unit

HygroFlex HF4 Humidity Temperature

Transmitters: User Guide

Instruction Manual

Document Type

Page

24 of 29

Document title

9 Firmware updates

Firmware updates will be available on the ROTRONIC website for downloading. Firmware files are given a

name that shows both to which device the file applies and the version number of the firmware. All firmware

files have the extension HEX. Procedure for updating the firmware:

Use the appropriate model of service cable (see Maintenance > Service Cable) to connect the

service connector of the HF4 to a USB port of a PC with the ROTRONIC HW4 software installed.

Note that the ROTRONIC USB driver must be installed on the PC as explained in the HW4 manual

E-M-HW4v3-Main. In the case of the HF45, a connection with the PC can be established via the

USB (ROTRONIC USB driver) or Ethernet interface.

Copy the firmware update file from the ROTRONIC website to the PC.

Start HW4 software on the PC and search for the HF4 (HW4 Main Menu Bar > Devices and Groups

> Search for USB Masters).

After finding the HF4, expand the device tree to see the HF4 functions. Select Device Manager. In

the Device Manager menu bar select Tools > Firmware Update. For instructions see document

E-M-HW4v3-F2-003