122
FEP630, FEH630
ELECTROMAGNETIC FLOWMETER | OI/FEP630/FEH630-EN REV. D
10
Maintenance
Safety instructions
WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
• Before opening the housing, switch off the power supply.
WARNING
Loss of Ex-approval!
Loss of Ex approval due to replacement of components in
devices for use in potentially explosive atmospheres.
• Devices for use in potentially explosive atmospheres may
be serviced and repaired by qualified ABB personnel only.
• For measuring devices for potentially explosive
atmospheres, observe the relevant operator guidelines.
CAUTION
Risk of burns due to hot measuring media
The device surface temperature may exceed 70 °C (158 °F),
depending on the measuring medium temperature!
• Before starting work on the device, make sure that it has
cooled sufficiently.
NOTICE
Damage to components!
The electronic components of the printed circuit board can be
damaged by static electricity (observe ESD guidelines).
• Make sure that the static electricity in your body is
discharged before touching electronic components.
Corrective maintenance work may only be performed by trained
personnel.
• Before removing the device, depressurize it along with any
adjacent lines or vessels.
• Check whether hazardous materials have been used as
measuring medium before opening the device. Residual
amounts of hazardous material may still be present in the
device and could escape when it is opened.
Within the scope of operator responsibility, check the following
as part of a regular inspection:
• pressure-carrying walls / pressure equipment liner
• the measurement-related function
• the leak tightness
• the
wear
(corrosion)