BRUEL & KJAER 2203 - Table of Contents; Battery Replacement; General Considerations; Or Piston Phone

CONTENTS
1. INTRODUCTION . .. ...... .... .. .... .. .. .. ..... ..... .... ... ....... .. ............. 7
1.1. Precision Sound Level Meter Type 2203 . . . . . . .. .. .. .. . . .. . 7
1.2. Precision Sound Level Meter Standards .................... 7
2. CONTROLS . .... .. .. .. .. .... ...... .... ...... ......... ................... ........... 9
Meter Scale .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 1 0
Meter Mechanical Zero Adjustment . .. . .. . . . . . . . . . .. . . . . . . . . . 1 0
Power On Flasher .................................................. 10
Meter Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
Meter Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
Input Attenuator (black) .. . . . . .. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. ... 11
Output Attenuator (transparent) . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. 11
Gain Adjustment .................................................... 11
External Filter In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
External Filter Out . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. .. . . . . .. . 1 2
AC
Output ............................................................. 12
Tripod Mounting Threads ............... ....... .................. 12
3. OPERATION ....................................................................... 13
3. 1. Battery Replacement and
General Considerations ................................... .. ...... 1 3
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . 1 3
General Considerations ........................................... 1 3
3.2. Calibration for Sound Measurements ........................ 13
Using the Sound Level Calibrator
or Piston phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3
Using
the built-in Reference Voltage . . . . . . . . . . . . . .. .. .. . . .. . 1 5
Determination of K-factor . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. .. . . . . .. . 1 6
3.3. Sound Measurements .. ... ........................ .. ............. 16