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General| Brand | Oltronix |
|---|---|
| Model | Racpac 300 |
| Category | Power Supply |
| Language | English |
Overview of Oltronix RACPAC power supplies, voltage, and protection features.
Details on dual range volt/ammeter, current limit, programming, remote sensing, and modulation.
Description of the front panel layout and model numbering system.
Procedure for checking package contents and physical condition upon receipt.
List of standard accessories included with the bench models.
List of optional accessories for enhanced functionality.
Covers initial setup: line voltage, power on, output voltage, OVP, and current limit controls.
Guidelines for proper ventilation and ambient operating temperature.
Detailed steps for normal power supply operation and connections.
Explanation of the remote sensing circuit for voltage regulation at the load.
Procedure for controlling output voltage using an external resistor.
Method for controlling output voltage with an external signal.
Description of modulating the output voltage with a low power signal.
Instructions for connecting multiple units in series for higher output voltage.
Configuration for serial operation with remote sensing enabled.
Configuration for serial operation with programming capabilities.
Procedure for connecting multiple units in parallel for higher output current.
Advanced parallel operation using a master-slave configuration.
Achieving constant current output using the limit function.
Method for achieving better constant current stability with an external shunt.
Programming constant current output when external shunt is used.
Information on available accessories, including fans and mounting kits.
Overview of the electrical operation and circuit blocks.
Detailed block diagram illustrating the power supply's functional units.
Description of the LC low-pass filter used for smoothing the rectified voltage.
Explanation of the firing circuit that controls the thyristors.
Description of the reference voltage generation and stabilization circuit.
How the sampling element and error amplifier stabilize output voltage.
Mechanism for stabilizing and limiting the output current.
Description of the series regulator comprising parallel power transistors.
Details on the circuit that selects the correct voltmeter range.
Details on the circuit that selects the correct ammeter range.
Explanation of the Constant Voltage/Constant Current indicator logic.
How the OVP circuit detects and protects against overvoltage conditions.
Introduction to maintenance procedures and general advice.
Functional checks of front panel controls and indicators without external equipment.
Instructions for safely removing the instrument covers for access.
Detailed steps for calibrating and aligning the power supply.
Introduction to troubleshooting, emphasizing prior study of circuit descriptions.
Outlines the systematic approach to diagnosing and resolving faults.
Essential preliminary checks before detailed troubleshooting begins.
Table guiding users to specific fault areas based on observed symptoms.
Information on how to order replacement parts from Oltronix or distributors.
Glossary of common abbreviations used in parts lists and the manual.
Breakdown of the RACPAC into its main printed circuit board sub-units.
