Endress+Hauser Proline Prowirl 72 - 9.5 Installing and removing electronics boards

Proline Prowirl 72 FOUNDATION Fieldbus 9 Troubleshooting
Endress + Hauser 57
9. 5 Installing and removing electronics boards
9.5.1 Non-Ex, Ex i/IS and Ex n version
!
Note!
• When connecting Ex-certified devices, please refer to the notes and diagrams in the Ex-specific
supplement to these Operating Instructions.
• Risk of damaging electronic components (ESD protection).
Static electricity can damage electronic components or impair their operability. Use a workplace
with a grounded working surface, purpose-built for electrostatically sensitive devices!
"
Caution!
Use only genuine Endress+Hauser parts.
Procedure when installing/removing electronics boards (Fig. 28)
1. Unscrew the cover (a) of the electronics compartment from the transmitter housing.
2. Remove the display module (b) from the retaining rails (c).
3. Fit the display module (b) with the left side onto the right retaining rail (c) (this secures the
display module).
4. Loosen the fixing screw (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 fixing 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.