Specifications; Educational Services - Fisher 3570 Instruction Manual

3570 Positioners
September 2015
Table 1. Specifications (Continued)
Declaration of SEP
Fisher Controls International LLC declares this
product to be in compliance with Article 3 paragraph
3 of the Pressure Equipment Directive (PED) 97 / 23 /
EC. It was designed and manufactured in accordance
NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology.
1. For a 3570 or 3570C positioner mounted on a 470 or 480 actuator. Values do not apply to other constructions or actuator‐valve combinations.
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2. m /h at 0°C, 1.01325 bar, absolute (Scfh at 60°F, 14.7 psia).
Table 2. Action Under Normal Operating Conditions
POSITIONER ACTION
Direct‐acting
Reverse‐acting
1. Supply pressure is routed through relays to piston.
Table 3. Pressure Indications
PRESSURE MONITORED
Positioner input signal pressure
Cylinder (relay output) pressure
1. For gauges marked in other units and ranges, consult your
3573 — Pneumatic valve positioner that is similar to The 3572 positioner with the relay output pressure piped to the
bottom (piston underside) of the actuator cylinder. The 3573 positioner is normally used on the 473 pneumatic piston
actuator with valve bodies having push‐down‐to‐close (PDTC) action.
3576 (Discontinued)— Pneumatic valve positioner with one relay for use on direct‐acting pneumatic diaphragm
actuators that require high operating pressures. The 3576 positioner includes two pressure gauges to monitor input
signal pressure and relay output pressure to the top of the actuator diaphragm.
The 3576 positioner is bracket‐mounted to the actuator yoke. Actuator stem position feedback is provided through a
wire from the actuator‐valve stem connector.
3577 (Discontinued)— Pneumatic valve positioner that is similar to 3576 positioner with the relay output pressure
piped to the underside of the actuator diaphragm on reverse‐acting pneumatic diaphragm actuators.

Specifications

Specifications for 3570 positioners are listed in table 1.

Educational Services

For information on available courses for 3570 positioners, as well as a variety of other products, contact:
Emerson Process Management
Educational Services, Registration
Phone: +1-641-754-3771 or +1-800-338-8158
e‐mail: education@emerson.com
http://www.emersonprocess.com/education
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Down
Increasing input signal pressure to bellows
Decreasing input signal pressure to bellows
NUMBER OF GAUGES SUPPLIED
Two‐Relay One‐Relay
Positioner Positioner
1 1
2 1
Emerson Process Management sales
with Sound Engineering Practice (SEP) and cannot
bear the CE marking related to PED compliance.
However, the product may bear the CE marking to
indicate compliance with other applicable European
Community Directives.
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DESIRED PISTON MOTION
Decreasing input signal pressure to bellows
Increasing input signal pressure to bellows
STANDARD GAUGE RANGE
0‐30 psi/0‐0.2 MPa/0‐2 bar or
0‐60 psi/0‐0.4 MPa/0‐4 bar
0‐160 psi/0‐1.1 MPa/0‐11 bar
office.
Instruction Manual
D200137X012
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