TM 11-6625-2779-14&P

This manual contains copyrighted material reproduced by permission of Hewlett-Packard Company. All rights are reserved.

TECHNICAL MANUAL

HEADQUARTERS

 

DEPARTMENT OF THE ARMY.

No. 11-6625-2779-14&P

WASHINGTON, DC, 11 March 1980

OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS) FOR

METER, AUDIO LEVEL TA-885/U

(HEWLETT-PACKARD MODEL 3555B)

(NSN 6625-00-255-1083)

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form 2028-2 located in back of this manual direct to Commander, US Army Communications and Electronics Materiel Readiness Command, ATTN: DRSEL-ME-MQ, Fort Monmouth, NJ 07703.

In either case, a reply will be furnished direct to you.

This manual is an authentication of the manufacturer's commercial literature which, through usage, has been found to cover the data required to operate and maintain this equipment. The manual was not prepared in accordance with military specifications; therefore, the format has not been structured to consider categories of maintenance.

 

 

 

Para

Page

SECTION

0.

INTRODUCTION

 

 

 

 

Scope

0-1

0-1

 

 

Indexes of Publications

0-2

0-1

 

 

Maintenance forms, records, and reports

0-3

0-1

 

 

Administrative storage

0-4

0-2

 

 

Destruction of Army electronics materiel

0-5

0-2

 

 

Reporting of equipment improvements recommendations (EIR)

0-6

0-2

 

 

Items comprising an operable equipment

0-7

0-3

 

I.

GENERAL INFORMATION

 

 

 

 

Introduction

1-1

1-1

 

 

Accessory equipment supplied

1-9

1-2

 

 

Instrument identification

1-11

1-2

 

 

150 BAL modification

1-13

1-2

 

II.

INSTALLATION

 

 

 

 

Inspection

2-1

2-1

 

 

Warranty exception

2-3

2-1

 

 

Power requirements

2-5

2-1

 

 

Three-conductor power cable

2-7

2-1

 

 

Battery

2-10

2-1

 

 

Installation and removal of battery

2-12

2-2

 

 

Cover removal

2-15

2-2

 

 

Repackaging for shipment

2-17

2-2

 

III.

OPERATING INSTRUCTIONS

 

 

 

 

Introduction

3-1

3-1

 

 

Controls, connectors and indicators

3-4

3-1

 

 

Operation

3-6

3-1

 

 

Battery

3-8

3-1

 

 

Level and noise measurements

3-12

3-5

 

 

Level measurements

3-14

3-5

 

 

Noise measurements

3-28

3-7

 

 

Recorder compatibility

3-41

3-8

 

 

Applications

3-45

3-8

 

 

Transmission loss measurements

3-48

3-10

i

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HP TM 11-6625-2779-14&P manual Technical Manual Headquarters Department of the Army, Nsn