ROTRONIC HF65 - Manual (Page 25)

E-M-HF63_65-V1_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroFlex HF63/HF65 Humidity Temperature
Transmitters: User Guide
Document title
Page 25 of 34
© 2008; Rotronic AG E-M-HF63_65-V1_11
8.2 Location of the service connector (mini USB type)
The service connector can be accessed without opening the enclosure after removing the small red sealing
cover.
HF32
The service connector is located at
the bottom of the enclosure (black
arrow)
8.3 Periodic calibration check
Both the Pt 100 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 HF6 should be verified every 6 to 12 months. Applications
where the HF6 is exposed to significant pollution may require more frequent verifications.
a) Procedure for adjusting the HF63 or HF65 from the optional keypad
The optional keypad allows a 1-point adjustment of temperature or humidity against a reference.
A 1-point adjustment has the effect of adding the same offset to all measured values. A multi-point
adjustment is not possible from the keypad and requires using either a PC with the HW4 software
installed or another instrument such as the HP23 hand-held calibrator.
• When the parameter to be adjusted is stable, press the MENU key to show the internal menu on the
display
• Use the (-) key to select either H-Adjust or T-Adjust and press the ENTER key
• Make sure that the text line beginning with RefValue is highlighted and press the ENTER key
• Use the (+) or (-) key to change the reference value as desired
• Use the (-) key to highlight the Adjust text line and press the ENTER key
• The display confirms the adjustment with the message “Adjust OK”
• Press the MENU key twice to exit the menu and return the HF6 to normal operation
b) Procedure for adjusting the HF63 or HF65 with the ROTRONIC HW4 software:
• Use
cable AC3006 to connect the service connector to a USB port of a PC with the HW4 software
installed. Note that the ROTRONIC USB driver must be installed on the PC as explained in the HW4
manual E-M-HW4v2-Main. In the case of the HF65, a connection with the PC can be established via
the USB (ROTRONIC USB driver) or Ethernet interface.
• Start HW4 on the PC and search for the transmitter (HW4 Main Menu Bar > Devices and Groups >
Search for USB Masters).
• After finding the HF63 or HF65 with HW4, expand the device tree to display all available functions.
Select Probe Adjustment.
• For further instructions see HW4 manual E-M-HW4v2-A2-001