BRUEL & KJAER 2230 Service

BRUEL & KJ.LER
Nrerum-Denmark
Service Instruction
2230
Precision Integrating
Sound Level
Meter
Type 2230
Valid from serial no. 1 028 340
037-0539
Consisting of:
Service Instruction
Checking Procedure
Analog Circuit
Digital Circuit
ZC 0020 Preamplifier
ZF 0020 Attenuator
ZZ 0187 Main Board
Mechanical Parts
Circuit Diagram
Updating
page
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Due to the constant progress in technology the instrument will
from time to time be brought up to date in order to provide
continuously improved performance.
For this reason there may be small variations between the instru-
ment and the Service Instruction.
However, the local Service Representative is in possession of all
informations regarding any change that has been made.
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Trouble Shooting
If any fault should occur, check the instrument according to the
Checking Procedure.
The Checking Procedure is divided up into sections, where each
section will refer to a subsection in the Service Instruction corre-
sponding to a specific part of the instrument.
The subsection in the Service Instruction will normally consist of
a Block Diagram, a Technical Description, an Adjustment Proce-
dure and a Simplified Diagram where the test points are identi-
fied.
Before correcting any apparent deviation make sure that the
measuring instrument has tolerances small enough not to affect
the measurement.
When a fault has been traced and corrected, the voltages and
adjustments influenced by the correction must be rechecked.
The complete instrument should then be tested to make sure that
all basic functions are operative.
The tolerances given in these notes are intended for use as guide
for adjustments.
Many instruments have various aids to be used when trouble
shooting or adjustment is carried out. They are not necessarily
mentioned in the Service Instruction.
The local Service Representative is in possession of information
regarding these aids.
Spare Parts
Please state type and serial number of the instrument when
ordering spare parts.
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BRUEL & KJAER 2230 Specifications

General

Brand	BRUEL & KJAER
Model	2230
Category	Measuring Instruments
Language	English