Geräte Informationen:

AVO EA 113 Analog Multimeter
Hersteller:
AVO
Modell: EA 113
Datum:
Kategorie: Messgeräte
Gruppe: Analog Multimeter
Beschreibung: Electonic Avometer
Informationen:
                                    For almost fifty years the Avometer has built for itself an
unrivalled reputation for reliability and service. It is,
however, inevitable that instruments fail from time to time,
mainly due to accidental misuse, and when they do, it is
essential that they are repaired to the highest possible
standard. This booklet has been produced therefore to aid
our customers and associates, both at home and overseas, and
it is hoped that it will form a useful guide to the trained
engineer who has the task of servicing our products. The
instrument has not been dealt with in absolute detail, for
to do so, would be beyond the scope of this publication,
although it is assumed that the engineer undertaking the
work has a good knowledge of the principles of moving coil
multi-range measuring instruments and electronics.

The instrument has been f broken down1 in such a manner that
an engineer with suitable tools and test gear, can take Avo
components and spare parts and fit them into the instrument,
which will then only require a minimum degree of calibration
and test.

Particular note should be taken of the advice which is given
regarding the use of complete sub-assemblies. It is
advisable to keep a number of key items in stock, in order
that they can be immediately available when required. A
faulty movement can be returned to the factory and an
allowance will be made for serviceable component parts.

No attempt should be made to service an Avometer unless the
full range of recommended test equipment, is available. In
the event of a major overhaul the instrument should be
returned to the Avo representative in your territory.

Folgende Anleitungen sind für obiges Gerät verfügbar:

AVO -- EA 113 -- Serviceanleitung
Dateiname: AVO-6578-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 32
Dateigröße: 6.87 Mbytes (7201545 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 6170-148/1B
Datum:
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: bbd133ddd53d53b9c4044c2345281966
ed2kID: 3525356a7d137bf597ea6b48984a0db5
Downloads: 132 seit 07 März 2015
Hochgeladen von: Paul Adams
Informationen:
Introduction	5

TEST FACILITIES AND EQUIPMENT REQUIRED

1.	Essential Test Facilities, Equipment and Conditions	6

Instruments and Test Gear	6

Tools and Other Aids	7

Spare Parts	7

Miscellaneous Items	7

PRELIMINARY PROCEDURE

2.	Suggested Repair Procedure	8

3.	Consideration of Customer’s Report	g

4.	Rapid Functional Checks	9

REMOVAL OF ASSEMBLIES

5.	Replacement of Battery or Fuse	-jq

6.	Removal of the Panel from the Case	n

7.	Removal of the Printed Circuit Range Board	n

8.	Removal of the Amplifier Board	n

9.	Removal of the Movement from the Panel	12

FAULT FINDING AND SERVICING INFORMATION

10.	Fault Finding Table	13

11.	Servicing Information	14

DISMANTLING AND REPLACEMENT

12.	Dismantling the Movement	17

13.	Front Panel Replacement	19

14.	Slide Switch Replacement	20

ELECTRICAL TESTING

15.	Transistor Selection Procedure	21

16.	General Functional Check	21

17.	D.C. Calibration Tests and Adjustments	21

18.	A.C. Calibration Tests and Adjustments	22

19.	Final Procedure.	23

20.	Plates, Components List and Circuit Diagrams.	24
AVO-6578-Manual-Page-1-Picture
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