Equipment information

AVO Avometer 8 MK III Analog multimeter
Manufacturer
AVO
Model Avometer 8 MK III
Date 1964
Category: Measurement instruments
Group Analog multimeter
Description
Information
                                    The meter is extremely simple to use, range selection in
general being accomplished by means of two switch knobs. All
tests, except those on the 2,500 V. ranges, make use of the
pair of terminals at the base of the instrument.
A clearly marked 5 in. (127 mm.) scale has uniformly divided
graduations to match 100 and 250 scale markings, and in
addition there is an ohms scale and one for decibels. An
anti-parallax mirror permits readings of the knife edge
pointer to be made with great precision.
The meter is supplied complete with a pair of special
rubber- covered leads which are intended for attachment to
the Avo- Meter by means of its captive terminals. The remote
ends of the leads are fitted with spring clips, which may be
interchanged with the 'AVO' Long Reach Safety Clips Mk. 2
supplied with the instrument.
‘AVO’ Long Reach Safety Clips Mk. 2 have been introduced to
enable connections for test purposes to be made at what are
normally inaccessible points on a chassis. Examination will
show that they are completely insulated with the exception
of the jaws at one end, which can be opened by compressing
the stem into the body of the clip. Rigid connections to
wiring can thus be made by this insulated device in
complicated wiring systems where other types of larger clip
could not be attached, or if fixed might cause short circuits.

These manuals are available for the above equipment:

AVO -- Avometer 8 MK III -- Service and User Manual
File name AVO-5998-Manual-Page-1-Picture
Manual Type Service and User Manual
Pages 26
Size 2.01 Mbytes (2104581 Bytes)
Language english
Revision
Manual-ID/Number 10072-370
Date 1964
Quality Scanned document, all readable.
Upload date
MD5 74ca095c1d744b8c1067a2e6d848da91
Downloads 489 since 09 May 2014
Information
FOREWORD................................................................................................
3
INTRODUCTION
....................................................................................
7
TABLE OF
RANGES....................................................................................
8
GENERAL
DESCRIPTION........................................................................
9
LIMITS OF
ACCURACY........................................................................
9
GRAPH OF FREQUENCY RESPONSE
..................................... 10
DESIGN AND CONSTRUCTION
................................................. 11
RANGE
CONTROLS....................................................................................
12
THE MOVEMENT
....................................................................................
13
SCALING
................................................................................................
13
REPLACEMENT OF INTERNAL BATTERY, CELL AND FUSE .. 13
REPLACEMENTS
......................................................................................
13
MOVEMENT REVERSE CONTROL
................................................. 13
OVERLOAD PROTECTION
............................................................. 14
OPERATION OF
INSTRUMENT.............................................................
15
CURRENT MEASUREMENT
............................................................. 15
VOLTAGE MEASUREMENT
............................................................. 15
RESISTANCE
MEASUREMENT.............................................................
16
INSULATION RESISTANCE MEASUREMENT ......................... 18
LOW RESISTANCE
MEASUREMENT................................................. 18
DECIBEL
MEASUREMENT........................................................................
18
ACCESSORIES
....................................................................................
20
D.C. VOLTAGE MULTIPLIERS 20
CURRENT TRANSFORMERS 20
D.C. SHUNTS 21
RESISTANCE RANGE EXTENSION UNIT 21
REPLACEMENT BATTERIES 21
CONCLUSION................................................................................................
22
CIRCUIT DIAGRAM OF THE MODEL 8 AVOMETER Mk III .. 23
AVO-5998-Manual-Page-1-Picture
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1000
Type the numbers for four hundred seventy-two.
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