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3582, 582i, and 3583
Contents (cont'd)
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Introduction
Scope of Manual
This instruction manual includes installation,
operation, calibration, maintenance, and parts
ordering information for Fisher 3582 pneumatic valve
positioners, the 3582i electro-pneumatic valve
positioner, and 3583 pneumatic valve stem position
transmitters. Refer to separate instruction manuals
for information on the control valve, actuator, and
accessories.
Do not install, operate or maintain a 3582 pneumatic
valve positioner, a 3582i electro-pneumatic valve
positioner, or a 3583 pneumatic valve stem position
transmitter without being fully trained and qualified in
valve, actuator and accessory installation, operation
and maintenance. To avoid personal injury or
property damage it is important to carefully read,
understand, and follow all of the contents of this
manual, including all safety cautions and warnings. If
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you have any questions about these instructions,
contact your Emerson Process Management sales
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office before proceeding.
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Description
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3582 pneumatic valve positioners and the 3582i
electro-pneumatic valve positioner shown in figure 1
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are used with diaphragm-actuated, sliding-stem
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control valve assemblies. The pneumatic valve
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positioners receive a pneumatic input signal from a
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control device and modulate the supply pressure to
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the control valve actuator. The positioner adjusts the
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actuator supply pressure to maintain a valve stem
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position proportional to the pneumatic input signal.
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3582NS positioners are designed for nuclear power
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applications. The 3582NS construction includes
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materials that provide superior performance at
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elevated temperature and radiation levels. The
O-rings are EPDM (ethylene propylene) and the
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diaphragms are EPDM/meta-aramid fabric. EPDM
demonstrates superior temperature capability and
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shelf life over nitrile. The meta-aramid diaphragm
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fabric demonstrates improved strength retention at
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elevated temperature and radiation conditions.
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Use a clean, dry, oil-free air supply
with instruments containing EPDM
components. EPDM is subject to
degradation when exposed to
petroleum-based lubricants.
Under the 10CFR50, Appendix B, quality assurance
program, the 3582NS positioner is qualified
commercial grade dedicated. These can be supplied
as 10CFR, Part 21 items.
The 3582i is an electro-pneumatic valve positioner,
consisting of a 582i electro-pneumatic converter
installed on a 3582 pneumatic valve positioner. The
3582i valve positioner provides an accurate valve
stem position that is proportional to a DC current
input signal.
The 582i electro-pneumatic converter is a modular
unit that can be installed at the factory or in the field.
However, do not install a 582i converter on an
existing positioner until you contact your Emerson
Process Management sales office for application
assistance.
Instruction Manual
June 2010
CAUTION
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