9.3.16.1 Recovering the user PIN
Requirement
• You have received the PUK from Technical Support using the serial number of your device.
• The "User PIN (Page 155)" parameter is enabled.
Procedure
1. In the parameter view, select the "PIN recovery" parameter.
2. Press the button.
The cursor and the "EDIT" symbol ash.
3. Enter the digits of the PUK:
– Use the or button to change.
– Use the button to conrm.
– Use the button to delete.
The complete PUK is shown on the top line of the display.
4. When the PUK is complete, use the button to conrm.
Result
• If you have entered the correct PUK, the message "NEW PIN - 2457" appears.
The user PIN has been reset to the factory setting 2457.
• If the PUK was not correctly entered, the message "FAILD" appears.
Then repeat the described procedure.
Parameter assignment
9.3 Parameter assignment over device with display
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
154 Operating Instructions, 05/2020, A5E41864807-AB
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