ROTRONIC XB OEM - Manual (Page 15)

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 15 of 27
© 2008; Rotronic AG E-M-XB-V1_10
Terminal block diagram
Note: connect the + of the power supply to only one of the V+ terminals. The two terminals marked H+V and
T+V are internally connected.
Measuring humidity or temperature only
Unless configured to measure either humidity only or temperature only, proper operation of the XB2 requires
both current loops to be closed. The XB2 can be directly ordered from the factory to measure either humidity
or temperature only. When necessary, any unused output of the XB2 can be disabled with the ROTRONIC
HW4 software. When the XB2 is configured with one of the two outputs disabled, close only the loop that is
being used.
Terminals Description
K1-1: H+V Power supply: 10…28 VDC (+)
K1-2: H-OUT
Relative humidity or dew point (+)
OUT-1
K1-3: T+V Power supply: 10…28 VDC (+)
K1-4: T-OUT
Temperature output (+)
OUT-2