Output Connection; Instrument Connection; Diagnostic Connections - Emerson Fisher 3582i Instruction Manual

3582, 582i, and 3583
January 2013
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.
The 3582i electro‐pneumatic valve positioner requires a 4‐20 milliampere DC current input signal from the control
device. A 1/2 NPT conduit connection is provided for properly wiring electrical installations. For more information, see
the electrical connections section.

Diagnostic Connections

To support diagnostic testing of valve/actuator/positioner/accessory packages, special connectors and hardware are
available. The hardware used includes 1/8 NPT connector bodies and body protectors. If the diagnostic connectors are
ordered for a positioner with gauges, 1/8‐inch stems are also included.
Install the connectors on the 3582 block assembly or 582i housing as shown in figure 8. Before installing the
connectors on the positioner, apply sealant to the threads. Sealant is provided with the diagnostic connections and
hardware.
Figure 8. Diagnostic Connections
3582 POSITIONERS
12B8045‐A
A6077-1
3582 VALVE POSITIONERS
20
BODY PROTECTOR
BODY
12B8046‐C
A6078-2
GAUGE
STEM PROVIDED
WHEN GAUGE IS
SPECIFIED
3582i VALVE POSITIONER
Instruction Manual
D200138X012
3582i
BODY PROTECTOR
BODY