Procedure
5
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①
Supply voltage
⑤
Input terminals
②
HART communication resistor (optional)
⑥
Protective conductor connector
③
Cable gland
⑦
Ground terminal
④
Test terminals
Figure 6-7
Connecting the device
1. Lead the shielded connecting cables through the cable glands
③
.
2. Connect the device to the plant with the protective conductor connection
⑥
.
3. Connect the wires of the power supply
①
to the terminals (+) and (-).
Take the polarity into account. The device has reverse polarity protection.
4. Connect the shield to the screw of the ground terminal
⑦
.
The screw of the ground terminal is electrically connected to the external protective
conductor connection.
5. For devices with intrinsic safety type of protection, use an isolating power supply that
corresponds to the requirements of the relevant type of protection.
Connecting
6.8 Connecting the SITRANS TF dual chamber housing
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
96
Operating Instructions, 05/2020, A5E41864807-AB