HP E42 Model 5320A General Information, C T I O N N E R a L I N F O R M a T I O N Scope of Manual

Model 5320A

General Information

S E C T I O N I

G E N E R A L I N F O R M A T I O N

1 - 1 . SCOPE OF MANUAL

1-2. This manual provides operating and service information for the Hewlett-Packard Model 5328A/H42 500 MHz Universal Frequency Counter. (In this manual its name will be abbreviated to “5328A” or “counter”.) A separate operators booklet contains condensed operator instructions.

1-3. This manual is divided into eight sections as listed and described below:

Section I	GENERAL INFORMATION —	Describes the counter, lists specifications, lists
	items supplied, lists items required, but not supplied, describes applications,
	and lists recommended maintenance and test equipment.
Section II	INSTALLATION — Provides instructions for unpacking, inspection, prepar-
	ation for use, preparation for reshipment, and preparation for storage.
Section Ill	OPERATION — Provides operator instructions including frequency, measure-
	ment of input signal: time period, time period average, time interval, time
	interval average, and ratio between frequencies of two input signals.
Section IV	THEORY OF OPERATION —	Covers a. description of the general operating
	principles of the counter with reference to block and schematic diagrams
	of each assembly.
Section V	MAINTENANCE — Contains maintenance and service information, including
	a list of assemblies, recommended test equipment, performance checks, and
	adjustment. Troubleshooting procedures and flowcharts are included in this
	section.
Section VI	REPLACEABLE PARTS — Provides a complete list of replaceable parts and
	parts ordering information.
Section VII	MANUAL CHANGES — Contains information on manual changes.
Section Vlll	CIRCUIT DIAGRAMS — Contains schematic diagrams and component lo-
	cating illustrations.

1 - 4 . DESCRIPTION

1-5. The 5328A counter can be used to measure frequency, period, period average, time interval, time interval average, and ratio. The 5328A provides a 9-digit LED display, display storage, and leading zero blanking. Decimal point and unit readouts are displayed automatically. Two independent selectable input channels are provided for time interval measurements. Each input channel has an attenuator, trigger slope selector, level control, ac or dc coupling, and an oscilloscope marker output. Rear panel connectors provide a gate output, one- and 10-mega- hertz output, and an input for an external frequency standard. An ARM switch on the rear panel allows arming by the signal being measured (switch OFF) or by another input signal (switch ON).

1 - 6 . INSTRUMENT IDENTIFICATION

1-7. Hewlett-Packard instruments have a 2-section, 10-character serial number (0000A00000), which is located on the rear panel. The 4-digit serial prefix identifies instrument changes. If the serial prefix of your instrument differs from that listed on the title page of this manual, there are differences between this manual and your instrument. Instruments having higher serial prefixes are covered with a “Manual Changes” sheet included with this manual.

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