Proline t-mass 65 PROFIBUS DP
Trouble-shooting
85
9.5.1
Removing and installing printed circuit boards
Field housing
#
Warning!
• Risk of electric shock. Exposed components carry dangerous voltages. Make sure that the power
supply is switched off before you remove the cover of the electronics compartment.
• 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
purposely built for electrostatically sensitive devices!
• If you cannot guarantee that the dielectric strength of the device can be maintained during the
following steps, then an appropriate inspection test must be carried out in accordance with the
manufacturer’s specifications.
• When connecting Ex-certified devices, see the notes and diagrams in the Ex-specific supplement
to these Operating Instructions.
"
Caution!
Use only original Hauser parts.
Fig. 40, installation and removal:
1.
Unscrew cover of the electronics compartment from the transmitter housing.
2.
Remove the screws and remove the cover (2) from the electronics compartment.
3.
Disconnect the ribbon cable (1.2) of the display module from the amplifier board.
4.
Remove power unit board (4) and I/O board (6):
Insert a thin pin into the hole (3) provided for the purpose and pull the board clear of its holder.
5.
Remove amplifier board (5):
– Disconnect the plug of the sensor signal cable (5.1) including , S-DAT (5.2) and HistoROM/
T-DAT (5.3) from the board.
– Insert a thin pin into the hole (3) provided for the purpose and pull the board clear of its
holder.
6.
Installation is the reverse of the removal procedure.
Содержание Proline t-mass 65 PROFIBUS DP
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