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Bray
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Series 70
Bray Series 70 Operation And Maintenance Manual
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Table of Contents
Table of Contents
3
Safety Instructions - Definition of Terms
4
Hazard-Free Use
4
Qualified Personnel
4
Part Numbering System Reference Chart
5
Introduction
5
Principle of Operation
5
Electrical Operation
5
General Electrical Schematic
5
Mechanical Operation
5
Manual Override Operation (Declutchable)
6
Pre-Installation Storage
6
Installation
6
Mounting to a Valve
6
Field Wiring
6
Multiple Actuator (Parallel) Wiring
7
Actuator Diagram Without I.R.B
7
Travel Limit Switch and Mechanical Travel Stop Adjustment
7
S70 On/Off Actuator with Interposing Relay Board (I.R.B.)
7
Close Travel Switch Adjustment
8
Open Travel Switch Adjustment
8
Disassembly and Assembly
9
Procedure
9
Field or Factory Installable Options
10
Torque Switches
10
Torque Switch Mechanism
10
Heater
11
Installation Procedure
11
Servo-Pro Module
11
Installation Procedure
12
Servo Calibration
12
External Signal Feedback Potentiometer
13
Installation Procedure
13
Set the Potentiometer
13
Auxiliary Switches
13
Auxiliary Switch Configuration Chart
14
Typical Wiring Diagram: On/Off Service
15
Typical Wiring Diagram: Modulating Service
16
Adjustments, Calibration and Status LED of Servo Pro
17
Status LED
17
Receptacles (Quick Connectors)
18
Spinner
19
Local Control Station (Single Phase Powered Actuators)
19
Basic Tools
20
Appendix A
20
Actuator Troubleshooting Chart
21
Appendix B
21
S70 Servo Pro Troubleshooting Chart
22
Appendix C - Exploded Views
23
Series 70 - Housing Size 6
23
Series 70 - Housing Size 12
24
Series 70 - Housing Size 30
25
Series 70 - Housing Size 180 for 3:1 Gear Box
26
Series 70 - 3:1 Gear Box
27
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Installation, Operation And Maintenance Manual
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Bray Series 70 Specifications
General
Series
70
Accuracy
±1% of span
Repeatability
±0.5% of span
Housing Material
Aluminum
Input Signal
3-15 psi
Power Supply
N/A (Pneumatic)
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