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Commissioning (hardware)
4.4 Temperature sensor: connection of pins
SITRANS TF280 WirelessHART
Operating Instructions, 10/2010, A5E02619566-02
25
4.4
Temperature sensor: connection of pins
4.4.1
Overview
Temperature measurement
The resistance thermometer can be connected to the transmitter using a 2, 3 or 4-wire
system. The pin assignments are as follows:
1 x Pt100 (2-wire)
2-wire connection
1 x Pt100 (3-wire)
3-wire connection
1 x Pt100 (4-wire)
4-wire connection
Note
Jumpers
You must use jumpers in the case of 2- and 3-wire connections. The jumpers are not
included in the scope of supply.
Make the jumpers yourself. We recommend the use of flat metal tabs.
Pt100 sensor element cables
NOTICE
Achievement of IP65 protection
The cable gland included in the scope of supply is designed for cables with a diameter of
6 to 12 mm. The IP65 protection is no longer guaranteed if you use cables with other
diameters.