ROTRONIC XB OEM - Manual (Page 20)

E-M-XB-V1_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
XB Humidity Temperature Transmitter
User Guide
Document title
Page 20 of 27
© 2008; Rotronic AG E-M-XB-V1_10
8 Maintenance
8.1 Service cable
 Cable AC3006 is used to connect the XB transmitter to a USB port of a PC running the ROTRONIC HW4
software.
 As an alternative, cable AC2001 is used to connect the XB transmitter to a probe input of the HP23 hand-
held calibrator. For service purposes, the HP23 offers essentially the same functionality as the HW4
software.
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 is located on the XB printed
circuit board.
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 XB transmitter should be verified every 6 to 12 months.
Applications where the XB transmitter is exposed to significant pollution may require more frequent
verifications.
Service
Connector
(Mini USB)