www.Fisher.com
Safety manual for Fisher
™
1052 Actuators
Purpose
This safety manual provides information necessary to design, install, verify and maintain a Safety Instrumented
Function (SIF) utilizing the Fisher 1052 spring and diaphragm rotary actuator.
WARNING
This instruction manual supplement is not intended to be used as a stand-alone document. It must be used in conjunction
with the following manuals:
Fisher 1051 and 1052 Style F and G Size 40, 60, and 70 Rotary Actuators Instruction Manual (D100319X012)
Fisher 1052 Size 20 Diaphragm Rotary Actuator with F and G Mounting Adaptation Instruction Manual (D100322X012
)
Fisher 1051 and 1052 Size 33 Diaphragm Rotary Actuators Instruction Manual (D101322X012
)
Failure to use this instruction manual supplement in conjunction with the above referenced manual could result in personal
injury or property damage. If you have any questions regarding these instructions or need assistance in obtaining any of
these documents, contact your Emerson sales office
or Local Business Partner.
Introduction
This manual provides necessary requirements for meeting the IEC 61508 or IEC 61511 functional safety standards.
Figure 1. Fisher 1052 Actuator
W8172‐3
Size 33
W8508-3
Size 60
1052 Actuator
October 2017
Instruction Manual Supplement
D103790X012
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