Agilent Technologies E3630A service manual General Information

GENERAL INFORMATION

INTRODUCTION

This section contains general information concerning the E3630A triple output power supply. Included are safety con- siderations, safety and EMC requirements, instrument and manual identification, option and accessory information, instrument description, and specifications.

SAFETY CONSIDERATIONS

This product is a Safety Class I instrument, which means that it is provided with a protective earth ground terminal. This ter- minal must be connected to an ac source that has a 3-wire ground receptacle. Review the instrument rear panel and this manual for safety markings and instructions before operating the instrument. Refer to the Safety Summary page at the beginning of this manual for a summary of general safety information. Specific safety information is located at the appropriate places in this manual.

SAFETY AND EMC REQUIREMENTS

This power supply is designed to comply with the following safety and EMC(Electromagnetic Compatibility) require- ments:

nIEC 1010-1(1990)/EN 61010 (1993): Safety Require- ments for Electrical Equipment for Measurement, Control, and Laboratory Use

nCSA C22.2 No.231: Safety Requirements for Electrical and Electronic Measuring and Test Equipment

nUL 1244: Electrical and Electronic Measuring and Testing Equipment

nEMC Directive 89/336/EEC: Council Directive entitled Approximation of the Laws of the Member States relating to Electromagnetic Compatibility

nEN 55011(1991) Group 1, Class B/CISPR 11 (1990): Lim- its and Methods of Radio Interference Characteristics of Industrial, Scientific, and Medical(ISM) Radio - Fre- quency Equipment

nEN 50082-1(1992) /

IEC 801-2(1991): Electrostatic Discharge Require-

ments

IEC 801-3(1984): Radiated Electromagnetic Field

Requirements

IEC 801-4(1988): Electrical Fast Transient/Burst

Requirements

INSTRUMENT AND MANUAL IDENTIFICATION

A serial number identifies your power supply. The serial num- ber encodes the country of manufacture, the week of the lat- est significant design change, and a unique sequential number. The letter "KR" designates Korea as the country of manufacture, the first one digit indicates the year (3=1993, 4=1994, and so forth), and the second two digits indicate the week. The remaining digits of the serial number are a unique, five-digit number assigned sequentially.

If the serial number on your supply does not agree with those on the title page of the manual, a yellow Change Sheet is supplied with the manual to explain the difference

between your instrument and the instrument described by this manual. The Change Sheet may also contain information for correcting errors in the manual.

OPTIONS

Options OE3 and OE9 determine which line voltage is selected at the factory. The standard unit is configured for 115 Vac ± 10%, 47-63 Hz input.

Option No.	Description
OE3:	230 Vac ± 10%, 47-63 Hz Input
OE9:	100 Vac ± 10%, 47-63 Hz Input

910:One additional operating and service manual shipped with the power supply

ACCESSORY

The accessory listed below may be ordered from your local Agilent Technologies Sales Office either with the power sup- ply or separately. (Refer to the list at the rear of the manual for address.)

Agilent Part No.Description

5063-9767 Rack Kit for mounting one or two 3 1/2" high supplies in a standard 19" rack

The rack mount kit is needed for rack mounting of the E3630A power supply.

DESCRIPTION

This constant-voltage/current-limiting triple output power sup- ply combines two 0 to ±20V tracking outputs rated at 0.5 amps with an additional single output that is rated at 0 to 6 volts and 2.5 amps. The +20V and -20V tracking outputs can also be used in series as a single 0 to 40V 0.5-amp output. Connections to the supply's output and to chassis ground are made to binding posts on the front panel. The supply's three outputs share a common output terminal, which is isolated from chassis ground so that any one output terminal can be grounded.

All outputs are protected against overload and short-circuit damage. The ±20V outputs are protected by circuits that limit the output current to 110% of its nominal maximum. The over- load protection circuit for the +6V output has a current fold- back characteristic that reduces the output current as an overload increases until only 1 amp flows through a short cir- cuit. The 6V output current limit depends on the output termi- nal voltage and varies linearly between 2.75 amps at 6 volts and 1 amp at zero volts.

All controls, digital meter, and output terminals are located on the front panel. One voltage control sets the 0 to 6V and another sets the voltages of the 0 to +20V and 0 to -20V outputs simul- taneously. These dual tracking outputs are made more versatile by providing a tracking ratio control in addition to the usual volt- age control. With the tracking ratio control turned fully clockwise to its "fixed" position, the dual outputs have a fixed 1:1 tracking ratio. As the ±20V voltage control is adjusted, the voltage of the negative supply tracks the positive output within ±1%. Turning the tracking ratio control away from its fully clockwise position switches the dual tracking outputs into a variable tracking ratio

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