Emerson Rosemount CT5100, Reference Manual

Page: 170 / 179

North America
• The purge controller keypad mounted on the front of the equipment shall not be
exposed to direct UV light sources or direct sunlight. Example methods of protection
include, but are not limited to, indoor applications away from UV sources and outdoor
locations under shading. As part of regular inspections, if damage to or deterioration of
the membrane keypad is detected, the unit is to be taken out of service for repair or
replacement.
• The purge controller bypass function shall only be enabled during setup or
maintenance and only when the area is known to be non-hazardous.
• The cable glands used in the equipment are only suitable for use in areas with a low risk
of mechanical damage and must be suitably protected.
• The purge controller provided with this equipment provides alarm signals at various
contacts as described in the equipment instructions. The alarms relate to low-flow and
loss of purged air supply and must be connected to the end-users remote, monitored,
alarm system.
• For correct operation the on-site pressurizing air supply must be capable of providing
at least 25 L/min for leakage compensation.
• This assessment does not cover reliable function, performance, or other properties of
the equipment not related to safety.
• The equipment is to be installed using wire no larger than the protective earth wire.
• Equipment is only to be installed by manufacturer trained personnel.
• If at anytime there is a conflict between the system safety provisions and any relevant
local (national or regional) requirements, the local requirements always take
precedence.
• Equipment is not to be used with flammable liquids.
• The relief valve sealing cap must be fitted to maintain IP66 when the unit is in a non-
operational state.
• Equipment is subject to acceptance of the local inspection authorities having
jurisdiction.
• The equipment is intended for use only with air of instrument quality; all piping up to
and including the shut-off valve adjacent to the equipment must be protected against
mechanical damage.
• The protective gas supply to the equipment must be marked with the warning as
detailed in NFPA496 Clause 4.12.5.
• When installing conduit for power and data connections the end-user must select
suitably certified conduit.
14.10 Conditions of certification for the replacement
of simple devices
Approval for the PT100 temperature sensor as a simple device.
ATEX/IECEX assessment report summary Reference Manual
October 2019 00809-0100-4512
170 Rosemount CT5100(Ex)