Siemens SITRANS T Series - Test Terminals

LED
State Operating state Color
Display of faults independent of the device,
e.g. wire break, sensor short circuit, violation
of sensor limits
Flashing Red
Device error On Red
See also
Instructions and manuals (
http://www.siemens.com/processinstrumentation/documentation)
4.3.6 Test terminals
Description
The test terminals allow for direct measurement of the loop current without impairing the loop
integrity. When using the test terminals, the temperature transmitter must be connected to the
power supply.
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Figure 4-13 Test terminals
Warning! Only use certi󹪝ed testing devices for installation in hazardous areas.
Description
4.3 SITRANS TR320/TR420
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 47