Edition Number; Safety; Service Policy; Electrical Repairs - BRUEL & KJAER 5998 Service Manual

Chapter 1 — General Information

Edition Number

1.1 Edition Number
If any major changes are made to the instrument and/or Service Manual, a new
edition of the Service Manual will be released. Any new edition can be recognised
by the Literature Number (BI 5044-xx) given at the bottom of odd numbered pages,
where xx is the edition number.
The serial number from which each edition is valid is printed in the frontispiece of
this Service Manual.
Information concerning minor changes will be released in the form of a Service
Note which is dealt with in
1.2

Safety

Type 5998 and the equipment included with it has been designed and tested in
accordance with IEC Publication 348, Safety Requirements for Electronic Measur-
ing Apparatus, and has been supplied in safe condition.
Any work done on the instrument when open must be done by a qualified person
who is aware of the hazards involved, particularly ESD protection.
Note: The word WARNING denotes a hazard. It calls attention to a procedure,
practice, or like, which, if not correctly performed or adhered to, could result in
personal injury.
1.3

Service Policy

1.3.1

Electrical Repairs

Type 5998 and Microphone Fixture UA 1412 and accessories are NOT part of the
FRP scheme. therefore, should Type 5998 fail the checking procedure, you must
repair the instrument locally or return it to Brüel & Kjær, Nærum.
To help you repair the instrument, a set of diagrams and schematics are given in
Chapter
1.3.2

Mechanical Spare Parts

Mechanical spare parts can be ordered from Brüel & Kjær, see
of the parts available and their part numbers.
1 − 2
Chapter
7.
Reciprocity Calibration Apparatus Type 5998
Service Manual
2.
Chapter 6 for details
Brüel & Kjær