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SERIES 6A
ELECTROPNEUMATIC POSITIONER
QUICK START GUIDE
This document is not comprehensive, and is intended to help first time users become familiar with
the Bray S6A Electropneumatic Positioner. For more detailed information the Installation, Operation
and Maintenance Manual is available on the Bray website.
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Mounting and Setup
Step 1: Place the mounting bracket on the
underside of the positioner. Tighten the
mounting bolts and lock washers.
Step 2: Position the output shaft of the
positioner so that the flat (1) portion is facing
upwards.
Series 6A Quick Start Guide
Installation, Operation and Maintenance Manual
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Step 3: Insert the coupler over the output
shaft. Ensure proper alignment of the coupler’s
set screw with the flat side of the shaft before
tightening the set screw.
Step 4: Position the yellow indicator on the
base of the coupler.
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Mounting and Setup
Step 5: Position the positioner on the actuator
and tighten the mounting screws.
Step 6: Insert the pneumatic fittings on the
positioner and actuator before inserting tubing
into the outputs of the positioner to the inputs
of the actuator.
Series 6A Quick Start Guide
Installation, Operation and Maintenance Manual
Note: Supply air will be routed to Y1 in the
event of a signal loss (fail condition.)
• Single acting actuators release air from Y1
upon loss of signal.
• For double-acting actuators, make sure Y1
is connected to the desired port for fail
position.
Step 7: Position the yellow ‘Transmission Ratio
Selector’ tab (2) in the 90° position by pushing
it away from the labeled side of the device.
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Step 8: Adjust the yellow clutch wheel on the
underside of the terminals using a 4 mm wide
screwdriver to the 90° position.
SERIES 6A QUICK START GUIDE
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