1
Safety Manual
00809-0400-5100, Rev AB
Safety Instrumented System
November 2019
Safety Instrumented System
Section 1 Safety Instrumented System
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
Safety Instrumented System (SIS) certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Safety-certified identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4
Functional specification of the safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5
1.1 Safety messages
Procedures and instructions in this manual may require special precautions to ensure the
safety of the personnel performing the operations. Information that raises potential safety
issues is indicated by a warning symbol ( ). Refer to the safety messages listed at the
beginning of each section before performing an operation preceded by this symbol.
Failure to follow these installation guidelines could result in death or serious
injury
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair
the protection provided by the equipment.
Explosions could result in death or serious injury
Verify that the operating environment of the transmitter is consistent with the
appropriate hazardous locations certifications.
Before connecting a hand held communicator in an explosive atmosphere, make
sure the instruments in the loop are installed in accordance with intrinsically safe
or non-incendive field wiring practices.
Do not remove the gauge cover in explosive atmospheres when the circuit is
alive.
Electrical shock could cause death or serious injury
Use extreme caution when making contact with the leads and terminals.
Physical access
Unauthorized personnel may potentially cause significant damage to and/or
misconfiguration of end user’s equipment. This could be intentional or unintentional
and needs to be protected against.
Physical security is an important part of any security program and fundamental to
protecting your system. Restrict physical access by unauthorized personnel to protect
end user’s assets. This is true for all systems used within the facility.