Pressure Connections; Supply Connection; Output Connection; Instrument Connection - Emerson Fisher 3582 Instruction Manual

Instruction Manual
June 2010

Pressure Connections

WARNING
Valve positioners and valve stem
position transmitters are capable of
providing full supply pressure to
connected equipment. To avoid
personal injury or equipment damage
caused by parts bursting from system
overpressure, make sure the supply
pressure never exceeds the maximum
safe working pressure of any
connected equipment.
Pressure connections are shown in figure 7. All
pressure connections are 1/4 NPT internal. Use
3/8-inch tubing for all pressure connections. After
making pressure connections, turn on the supply
pressure and check all connections for leaks.

Supply Connection

WARNING
Personal injury or property damage
may occur from an uncontrolled
process if the supply medium is not
clean, dry, oil-free air, or noncorrosive
gas. While use and regular
maintenance of a filter that removes
particles larger than 40 micrometers in
diameter will suffice in most
applications, check with an Emerson
Process Management field office and
industry instrument air quality
standards for use with corrosive air or
if you are unsure about the proper
amount or method of air filtration or
filter maintenance.
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
Use a clean, dry, oil-free air supply
with instruments containing EPDM
components. EPDM is subject to
3582, 582i, and 3583
degradation when exposed to
petroleum-based lubricants.
Supply pressure must be clean, dry, oil-free air or
noncorrosive gas. Use a 67CFR filter regulator with
standard 5 micrometer filter, or equivalent, to filter
and regulate supply air. Except for the 3582NS, the
filter regulator can be mounted on the positioner. For
the 3582NS the regulator can be mounted on the
mounting plate with the positioner but not on the
positioner. The supply pressure should be high
enough to permit setting the regulator 0.3 bar (5 psi)
above the upper limit of the appropriate pressure
range, for example: 1.4 bar (20 psig) for a 0.2 to 1.0
bar (3 to 15 psig) range. However, do not exceed the
maximum allowable supply pressure of 3.4 bar (50
psig) nor the pressure rating of any connected
equipment.
Connect the nearest suitable supply source to the
1/4 NPT IN connection on the filter regulator (if
furnished) or to the 1/4 NPT SUPPLY connection on
the positioner block assembly.

Output Connection

A factory mounted valve positioner has the valve
positioner output piped to the supply connection on
the actuator. If mounting the valve positioner in the
field, connect 3/8-inch tubing between the 1/4 NPT
valve positioner connection marked OUTPUT and
the actuator supply pressure connection. Connect
the valve stem position transmitter connection
marked OUTPUT to an instrument that indicates
valve stem position.

Instrument Connection

For a 3582 pneumatic valve positioner connect
3/8-inch tubing from the control device to the 1/4
NPT INSTRUMENT connection. If the control device
is mounted on the control valve assembly by the
factory, this connection is made.
15