Appendix
C-1
C Transmitter Output Instability
SAFETY MESSAGES
Instructions and procedures in this section may require special
precautions to ensure the safety of the personnel performing the
operations. Please read the following safety messages before
performing any operation described in this section.
Warnings
Explosions could result in death or serious injury:
• Verify that the operating atmosphere of the flowtube
and transmitter is consistent with the appropriate
hazardous locations certifications.
• Do not remove the transmitter cover in explosive atmospheres
when the circuit is alive.
• Before connecting a HART-based 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.
• Both transmitter covers must be fully engaged to meet
explosion-proof requirements.
Failure to follow safe installation and servicing guidelines could result
in death or serious injury:
• Make sure only qualified personnel perform the installation.
• Do not perform any service other than those contained in this
manual unless qualified.
Process leaks could result in death or serious injury:
• The electrode compartment may contain line pressure; it must be
depressurized before the cover is removed.
High voltage that may be present on leads could cause
electrical shock:
• Avoid contact with leads and terminals.
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