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HP E3612A - Service Manual

HP E3612A
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HP E361XA 30W BENCH SERIES DC POWER SUPPLIES
OPERATING AND SERVICE MANUAL FOR MODELS:
HP E3610A, Serials KR20600101 and above
HP E3611A, Serials KR20600101 and above
HP E3612A, Serials KR20600l01 and above
Table of Contents
SAFETY SUMMARY
GENERAL INFORMATION
Description
Specifications and Characteristics
Options
Instrument Identification
INSTAI i ATION
Inspection
Location and Cooling
Input Power Requirements
Power Cord
OPERATION
Turn-On Checkout Procedure
Constant Voltage Operation
Constant Current Operation
Connecting Loads
Operation Beyond Rated Output
Pulse Loading
Capacitive Loads
Reverse Current Loading
SERVICE INFORMATION
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Manual Part No. B9B9-6304
Microfiche Part No. 5959-5307
Printed:
February, 1992

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HP E3612A Specifications

General IconGeneral
BrandHP
ModelE3612A
CategoryPower Supply
LanguageEnglish

Summary

Safety Summary

Before Applying Power

Verify product is set to match available line voltage before operation.

Ground The Instrument

Minimize shock hazard by connecting chassis and cabinet to an electrical ground.

Do Not Operate In An Explosive Atmosphere

Avoid operating the instrument in the presence of flammable gases or fumes.

General Information

Description

Overview of the E3610A, E3611A, E3612A dual range bench power supplies and their features.

Specifications and Characteristics

Options

Instrument Identification

Installation

Inspection

Inspect the power supply for any obvious damage that may have occurred during shipment.

Location and Cooling

Proper placement and ensuring adequate airflow for cooling the instrument during operation.

Input Power Requirements

Details on the power sources the supply can be operated from, based on the voltage option.

Power Cord

Information regarding the three-conductor power cable and the importance of cabinet ground connection.

Operation

Turn-On Checkout Procedure

Step-by-step guide to verify the power supply is operational using front panel controls and indicators.

Constant Voltage Operation

Procedure for setting up the power supply for constant voltage output mode.

Constant Current Operation

Procedure for setting up the power supply for constant current output mode.

Connecting Loads

Guidance on connecting loads to the output terminals to minimize coupling effects and noise.

Operation Beyond Rated Output

Information on adjusting voltage or current above rated values and its effect on performance.

Pulse Loading Considerations

Capacitive Loads

Reverse Current Loading

Service Information

Principles of Operation

Explanation of how the power supply circuits function, including feedback loops and error amplifiers.

Performance Test

Procedures for verifying the unit's compliance with specifications and characteristics.

Constant Voltage(CV) Test

Load Effect(Load Regulation)

Measures the change in DC output voltage when load resistance changes from open to full load.

Source Effect(Line Regulation)

Measures the change in DC output voltage when AC input voltage changes within its rated range.

PARD (Ripple and Noise) - Voltage

PARD (RMS) Measurement - Voltage

Procedure to measure the root-mean-square output voltage ripple and noise.

PARD (Peak-to-Peak) Measurement - Voltage

Constant Current (CC) Tests

Load Effect (Load Regulation) - Current

Measures the change in DC output current when load resistance changes from short to full load.

Source Effect (Line Regulation) - Current

Measures the change in DC output current when AC input voltage changes within its rated range.

PARD (Ripple and Noise) - Current

PARD (RMS) Measurement - Current

Procedure to measure the root-mean-square output current ripple and noise.

PARD (Peak-to-Peak) Measurement - Current

Procedure to measure the peak-to-peak output current ripple and noise.

Calibration Procedure

Calibration in High Current Range

Steps to calibrate ammeter and full scale current in the high current range.

Calibration in Low Current Range

Steps to calibrate ammeter and full scale current in the low current range.

Calibration of VOLTS Meter

Procedure to calibrate the voltage display to match the DVM reading.

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