CM-140
Instruction
Manual
SOUND LEVEL
METER
CE
GCBC CM140-12000
G A L A X Y A U D I O
Page 1: ...CM 140 Instruction Manual SOUND LEVEL METER CE GCBC CM140 12000 G A L AX Y A U D I O G A L AX Y A U D I O...
Page 2: ...Safety Information 1 II General Description 1 2 III Specifications 2 3 IV Name and Functions 4 5 V Calibration Procedures 6 7 VI Measurement Preparation 7 VII Operating Precautions 7 8 VIII Measuremen...
Page 3: ...a dry cloth Do not use abrasives or solvents on this instrument Safety symbols Comply with EMC When servicing use only specified replacement parts II General Description Thank you for using our Sound...
Page 4: ...50 dB to 100 dB Hi 80 dB to 130 dB Accuracy 1 5dB under reference conditions 94dB 1kHz Dynamic Range 50 dB Alarm Function OVER is when input is more than upper limit of range UNDER is when input is le...
Page 5: ...upply One 9V battery 006Por IEC 6F22 or NEDA1604 Power Life Approximately 70hours Alkaline Battery OperationTemperature 0 to 40 32 to 104 Operation Humidity 10 to 90 RH StorageTemperature 10 to 60 14...
Page 6: ...ge Fast response Sound Level readout Range Indicate C Weighting A Weighting Slow response Under range Windscreen If you operate at wind speed over 10m sec please put protective accessories in front of...
Page 7: ...sound level range or change A C weight the MAX MIN mode will clear Frequency Weighting Select Button A A Weighting For general sound level measurements C C Weighting For checking the low frequency con...
Page 8: ...adjustment Battery Cover V Calibration Procedures Using a standard Acoustic Calibrator 94dB 1KHz Sinewave CM 140 SPL METER 6 AC Output Terminal 1 Vrms Corresponding to each range step Output impedance...
Page 9: ...year VI Measurement Preparation 1 Battery Loading Remove the battery cover on the back and put in one 9V Battery 2 Battery Replacement When the battery voltage drops below the operating voltage this s...
Page 10: ...FAST To measure average sound level use the SLOW setting Select A weighting for general noise sound level and C weighting for measuring sound level of acoustic material 3 Select desired level 4 Hold t...
Page 11: ...CM 140 SPL METER 9...
Page 12: ...601 E Pawnee Wichita KS 67211 316 263 2852 FAX 316 263 0642 www galaxyaudio com G A L AX Y A U D I O G A L AX Y A U D I O...
