51
FEM630 | ELECTROMAGNETIC FLOWMETER | OI/FEM630-EN REV. A
7 Commissioning
Safety instructions
Limits and rules when using ABB fieldbus accessories
Hardware settings
Note
The product has an ABB service account that can be disabled
with this write protection switch.
DIP switches are located behind the front housing cover. The
DIP switches are used to configure specific hardware
functions. The power supply to the transmitter must be
briefly interrupted in order for the modified setting to take
effect.
Write-protect switch
When write protection is activated, device parameterization
cannot be changed via the LCD indicator. Activating and
sealing the write protection switch protects the device
against tampering
Configuration of digital outputs 41 / 42 and 51 / 52
The configuration (NAMUR, optoelectronic coupler) for the
digital outputs on the basic device is set via DIP switches in
the transmitter.
Aggressive or corrosive media may lead to the damage of
wetted parts of the sensor. As a result, measuring medium
under pressure can leak out.
Wear to the flange gasket or process connection gaskets (e.g.
pipe fitting, Tri-clamp, etc.) may caused a pressurized
measuring medium to escape.
When using internal flat gaskets, they can become brittle
through CIP- / SIP processes.
If pressure surges above the permissible nominal pressure of
the device occur permanently during operation, this may
affect the service life of the device.
If there is a chance that safe operation is no longer possible,
take the device out of operation and secure it against
unintended startup.
Use in Potentially Explosive Atmospheres
Note
• An additional document with Ex safety instructions is
available for measuring systems that are used in
potentially explosive atmospheres.
• Ex safety instructions are an integral part of this manual.
As a result, it is crucial that the installation guidelines and
connection values it lists are also observed.
• The icon on the name plate indicates the following:
Risk of burns due to hot measuring media
depending on the measuring medium temperature!
• Before starting work on the device, make sure that it
has cooled sufficiently.
CAUT ION
NAMUR DIP switch
Write protection DIP switch
1
2
Figure 60 Position of the DIP switches
Number Function
On
Write protection active
Off
Write protection deactivated.
Number Function
On
output.
Off
optoelectronic coupler output.
Dual-compartment housing
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