Vent; Electrical Connections For 3582I Valve Positioner - Emerson Fisher 3582i Instruction Manual

Instruction Manual
D200138X012

Vent

WARNING
Personal injury or property damage could result from fire or explosion of accumulated gas if a flammable gas is used as the
supply pressure medium and the positioner/actuator is in an enclosed area. The positioner/actuator assembly does not
form a gas‐tight seal, and when the assembly is enclosed, a remote vent line, adequate ventilation, and necessary safety
measures should be used. For leakage rates, see the Maximum Steady‐State Air Consumption specification. A remote vent
pipe alone cannot be relied upon to remove all hazardous gas. Vent line piping should comply with local and regional codes
and should be as short as possible with adequate inside diameter and few bends to reduce case pressure buildup.
WARNING
3582i does not meet third party approvals for use with natural gas as the supply medium. Use of natural gas as the supply
medium can result in personal injury or property damage from fire or explosion.
CAUTION
When installing a remote vent pipe, take care not to overtighten the pipe in the vent connection. Excessive torque will
damage the threads in the connection.
The vent opening at the back of the case marked VENT should be left open to prevent pressure buildup inside the case
and to provide a drain hole for any moisture that might collect inside the case. The perforated section of the
nameplate normally covers this opening to prevent blockage from debris or insects. Also, ensure the exhaust holes in
the relay (key 32 in figure 21) are kept open.
If a remote vent is required, the vent line must be as short as possible with a minimum number of bends and elbows.
The vent connection is 3/8 NPT internal. Use 3/8‐inch or larger tubing to provide a remote vent. The 582i has a 1/4 NPT
internal vent connection. Use optional remote vent 83L relay for remote vent applications.

Electrical Connections for 3582i Valve Positioner

WARNING
For explosion‐proof applications, disconnect power before removing the converter housing cap.
For Class I, Division 1 explosion‐proof applications, install rigid metal conduit and a conduit seal no more than 457 mm (18
inches) from the converter. Personal injury or property damage might result from explosion if the seal is not installed.
For intrinsically safe installations, refer to the loop schematics shown in figures 28 and 30, factory drawings, or to
instructions provided by the barrier manufacturer for proper wiring and installation.
Select wiring and/or cable glands that are rated for the environment of use (such as hazardous area, ingress protection and
temperature). Failure to use properly rated wiring and/or cable glands can result in personal injury or property damage
from fire or explosion.
Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval.
Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or
explosion.
3582, 582i, and 3583
January 2013
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