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Appendix
B-1
Appendix
B Approvals
SafetyMessages ................................pageB-1
Hazardous Locations Installations . . . . . . . . . .........pageB-1
LocationsCertifications ..........................pageB-2
InstallationDrawings .............................pageB-4
SAFETY MESSAGES Instructions and procedures in this section 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 ( ). Please refer to the following safety messages
before performing an operation preceded by this symbol.
HAZARDOUS LOCATIONS
INSTALLATIONS
The Models 244E are available with circuitry that is suitable for
intrinsically safe operation. The Model 244EH is available with
optional explosion-proof enclosures and can be specified for
non-incendive operation. Individual transmitters are clearly marked
with a tag indicating the approvals they carry.
To maintain certified ratings for installed transmitters, they must be
installed in accordance with all applicable installation codes and
approval drawings. Verify that the operating atmosphere of the
transmitter is consistent with the appropriate hazardous locations
certification.
IMPORTANT
Once a device labeled with multiple approval types is installed, it
should not be reinstalled using any of the other labeled approval types.
To ensure this, the approval label should be permanently marked to
distinguish the used from the unused approval type(s).
Once a device labeled with multiple approval types is installed, it should not be
reinstalled using any of the other labeled approval types. To ensure this, the approval
label should be permanently marked to distinguish the used from the unused
approval type(s).