BRUEL & KJAER 2203 User Manual

Instruction Manual
Precision Sound Level Meter Type 2203
2203
This portable sound level meter complies
with all existing standards for precision
sound level meters. It is equipped with an
individually calibrated condenser micro-
phone, an internal reference voltage for cali-
bration, "Lin", "A", "8", and "C" weight-
ing networks, "Fast" and "Slow" meter re-
sponses, and an AC
output for connection
to recorders, etc .. External filters can be di-
rectly attached, !3nd a wide range of acces-
sories is available. It can also be used with
an accelerometer for vibration measure -
ments .
+ Bri.iel & Kjmr

BRUEL & KJAER 2203 Specifications

General

Type	Sound Level Meter
Frequency Range	20 Hz to 20 kHz
Input Impedance	1 MΩ
Output Impedance	600 Ω
Detector	RMS
Display	Analog meter
Weight	1.5 kg
Power Supply	Batteries
Microphone	Condenser microphone
Weighting	A and C
Time Weighting	Fast and Slow

Summary

Instrument Details

Microphone Specifications

Details of the Type 4165 microphone and its performance.

Circuitry Description

Explanation of the meter rectifier and amplifier stages.

Directional Characteristics

Analysis of the instrument's directional performance at various frequencies.

Technical Specifications

Controls

Front Panel Controls Overview

Identification and description of front panel controls.

Microphone and Extension Rod

Details on microphone and extension rod connections.

Meter Switch and Scale

Function of the meter switch and explanation of meter scales.

Attenuator Controls

Details on the input and output attenuators.

Filter and Output Connections

Sockets for external filters and amplifier output.

Tripod Mounting Threads

Threads for mounting the instrument on a tripod.

Operation

Battery Considerations

Details on powering the instrument using batteries.

General Operational Guidelines

Guidelines for handling and connecting the instrument.

Sound Measurement Calibration

Methods for acoustically calibrating the instrument.

Sound Measurement Procedure

Step-by-step guide for performing sound measurements.

Vibration Measurement Calibration

Methods for calibrating for vibration measurements.

Vibration Measurement Procedure

Steps for conducting vibration measurements.

Vibration Amplitude Calculation

Converting dB readings to vibration units.