Endress+Hauser Proline Prowirl 73 - Installing and Removing Electronics Boards

Proline Prowirl 73 Troubleshooting
Endress+Hauser 73
9.6.1 Installing and removing electronics boards
For information on the software settings after installing a new electronics board: ä 50.
Non-Ex / Ex-i/IS and Ex-n version
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Warning!
When connecting Ex-certified devices, please refer to the notes and diagrams in the Ex-specific
supplement to these Operating Instructions.
Please do not hesitate to contact your Endress+Hauser representative if you have any questions.
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Caution!
Electrostatic charge!
Risk of damaging electronic components or impairing their function (ESD protection).
• Use a workplace with a grounded working surface, purpose-built for electrostatically sensitive
devices!
• Use only genuine Endress+Hauser parts.
Procedure when installing/removing electronics boards (å 31)
1. Unscrew the cover (a) of the electronics compartment from the transmitter housing.
2. Remove the local display module (b) from the retaining rails (c).
3. Attach the local display module (b) to the right retaining rail (c) with the left side. This secures
the local display module.
4. Loosen the fixing screws (d) of the cover of the connection compartment (e) and fold down
the cover.
5. Pull terminal connector (f) out of the I/O board (COM module) (q).
6. Fold up the plastic cover (g).
7. Remove the signal cable connector (h) from the amplifier board (s) and release from the cable
holder (i).
8. Remove the ribbon cable connector (j) from the amplifier board (s) and release from the cable
holder (k).
9. Remove the local display module (b) from the right retaining rail (c).
10. Fold down the plastic cover (g) again.
11. Release both screws (l) of the board holder (m).
12. Pull the board holder (m) out completely.
13. Press the side latches (n) of the board holder and separate the board holder (m) from the board
body (o).
14. Replace the I/O board (COM module) (q):
– Loosen the three fixing screws (p) of the I/O board (COM module).
– Remove the I/O board (COM module) (q) from the board body (o).
– Set a new I/O board (COM module) on the board body.
15. Replace the amplifier board (s):
– Loosen fixing screws (r) of the amplifier board.
– Remove the amplifier board (s) from the board body (o).
– Set a new amplifier board on the board body.
16. Installation is the reverse of the removal procedure.