ROTRONIC HC2-AW-USB - Manual (Page 16)

E-M-HC2-AW-USB-V1_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Water Activity and Temperature Probe
HC2-AW-USB: User Guide Instruction Manual
Document Type
Page 16 of 18
Document title
© 2011-2012; Rotronic AG E-M-HC2-AW-USB-V1_11
6 Maintenance
6.1 Cleaning or replacing the dust filter
Depending on the conditions of measurement, the wire mesh dust filter (model W24) should be checked from
time to time. Corroded, discolored or clogged filters should be replaced.
6.2 Periodic calibration check
Both the Pt100 RTD temperature sensor 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 contaminants may require more frequent verifications. Calibration and adjustment of the
HC2 probe is done with a PC with the HW4 software installed (version 3.0.1 or higher).
Procedure for adjusting the HC2 probe with the ROTRONIC HW4 software:
• Connect the HC2-AW-USB probe to the HW4 PC as explained in the HW4 manual E-M-HW4v3-
Main
• Start HW4 software on the PC and search for the HC2 probe. (HW4 Main Menu Bar > Devices and
Groups > Search for USB masters.
• After finding the HC2-AW-USB probe with HW4, expand the device tree to see the probe functions
and select Probe Adjustment.
• For further instructions see HW4 manual E-M-HW4v3-A2-001
6.3 Validation of the output signals transmission
If so desired, transmission of the HC2-AW-USB probe output signals can be validated by using the probe
simulator function. The HW4 software is required to enable and configure this function. When the function is
enabled the probe generates digital and analog signals corresponding to values specified by the user.
7 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:
• Connect the HC2-AW-USB probe to the HW4 PC as explained in the HW4 manual E-M-HW4v3-
Main
• Copy the firmware update file from the ROTRONIC website to the PC.
• Start HW4 software on the PC and search for the HC2 probe. (HW4 Main Menu Bar > Devices and
Groups > Search for USB masters.
• After finding the HC2-AW-USB probe, expand the device tree to see the probe functions. Select
Device Manager. In the Device Manager menu bar select Tools > Firmware Update. For instructions
see document E-M-HW4v3-F2-020