ROTRONIC XB OEM - Manual (Page 18)

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 18 of 27
© 2008; Rotronic AG E-M-XB-V1_10
6.2.3
Optional terminal block - Pt100 direct (XB2 and XB3)
Terminal block K3 is present only when the XB transmitter is equipped with an additional Pt100 RTD installed
on the probe
6.2.4
Grounding
We generally recommend grounding the (-) side of the power supply, especially if the electronics will be
subjected to a low humidity environment (35 %RH or less).
Terminals Description
K3-1 Pt100 direct - R
K3-2 Pt100 direct - AR
K3-3 Pt100 direct – AS
K3-4 Pt100 direct – S