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Explains the BE1-81 relay's function, application, and operational overview.
Details the Definite Time and Inverse Time delay characteristics and their settings.
Covers the physical assembly, mounting cradle, and style number identification.
Technical specs including power, sensing, targets, environmental limits, and ratings.
Identifies and describes the function of all front panel controls and indicators.
Describes internal circuits like Sensing, Power Supply, Oscillator, and timing comparison.
Explains delay circuits, relay output contacts, and target driver operations.
Outlines safety, handling, and pre-installation testing requirements.
Provides guidance on physical mounting and electrical connections.
General guidance on test setup and verification of relay performance.
Step-by-step instructions for testing the definite time delay function.
Step-by-step instructions for testing the inverse time delay function.
Information on component replacement, service manual, and storage guidelines.
Instructions on using test plugs for relay testing and diagnostics.
Lists changes made to the manual across different revision levels.
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