Manual

E-M-HF5-V1_25

Rotronic AG

Bassersdorf, Switzerland

Document code

Unit

HygroFlex HF5 Humidity Temperature

Transmitters: User Guide

Instruction Manual

Document Type

Page

24 of 30

Document title

7.4 Displayed parameters (optional keypad and display)

When the menu is not active, press the ENTER key to change which parameters are shown on the display:

o Relative humidity and temperature

o Relative humidity , temperature and calculated parameter (when the calculated parameter is

enabled)

8 Maintenance

8.1 Service cable

Cable AC3006 is used to connect the HF5 to a USB port of a PC running the ROTRONIC HW4 software. Prior

to connecting the HF5 to a USB port you must install the ROTRONIC USB driver on the PC (available from

the HW4 CD or from www.rotronic-humidity.com). For instructions see the HW4 manual E-M-HW4v3-Main.

8.2 Location of the service connector (mini USB type)

WARNING: the service connector is a UART interface with a mini-USB connector type. Do not connect the

service connector directly to the USB port of a PC or hub.

The service connector can be accessed without opening the enclosure after removing the small red sealing

cover.

8.3 Periodic calibration check of the probe

Both the Pt 100 RTD temperature sensor used in the probe and associated electronics are very stable

and should not require any calibration after the initial factory adjustment.

Long term stability of the ROTRONIC Hygromer humidity sensor is typically better than 1 %RH per year.

For maximum accuracy, calibration of the probe should be verified every 6 to 12 months. Applications

where the probe is exposed to significant pollution may require more frequent verifications.

Note: the HygroClip 2 probe cannot be adjusted when connected to the HF52 transmitter

HF32

Vertical mount: the service connector is

located either on the left side or on the

right side of the enclosure.

Horizontal mount: the service

connector is located at the bottom of

the enclosure (black arrow)