Requirement
You have ordered transmitter electronics. (Page22)
• Note that the transmitter electronics are delivered with pre-programmed factory settings. It
is therefore not possible to change certain parameters (e.g. serial number) on site.
Procedure
To replace the transmitter electronics, perform the following work steps:
1. Remove the display.
Removing the display (Page23)
2. Remove the current transmitter electronics.
Removing the transmitter electronics (Page24)
3. Install the new transmitter electronics.
Installing the transmitter electronics (Page26)
4. Install the display.
Installing the display (Page26)
5. Commission the device.
Commissioning the device after transmitter electronics have been replaced (Page27)
5.1.1 Ordering transmitter electronics
Note
The transmitter electronics are only available as a spare part in the "Ex i" version and may be used
with devices without explosion protection.
Procedure
1. Select the article number:
Transmitter electronics Communication
7MF7903-1AB HART
7MF7903-1BB PROFIBUS PA
7MF7903-1CB FOUNDATION Fieldbus
2. Enter the serial number of your device under the order code "Y55".
The serial number (S/N) can be found on the nameplate of the unit.
Replacing spare parts
5.1Replacing the transmitter electronics
SITRANS P320/P420
22 Service Manual, 11/2023, A5E44914141-AC