4
SM-10 / SM-20-A
Sound Level Meters
CONTENTS
Symbols .................................................................................................................5
Unpacking and Inspection ...................................................................................5
Introduction ..........................................................................................................5
Operation ............................................................................................................. 5
MAX/MIN .........................................................................................................6
HOLD ............................................................................................................... 6
Backlight ..........................................................................................................6
Record (SM-20-A Only) ...................................................................................6
Calibration Procedures ..................................................................................6
Specifications ........................................................................................................7
Maintenance and Repair .................................................................................... 8
Battery Replacement .....................................................................................8