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1. DSM403SD Class 1 Sound Level Meter with Excel Formatted Data Logging SD Card Accurately Measures Sound Levels of Machinery or an Environment with 0 1 dB Resolution e Acoustics design e Sound system setup e OSHA compliance No DSM403SD Al X fx Place fS G D E Time Value Unit 1 2009 10 16 16 47 05 60 8 dB oi 9 miee 2 2009 10 16 16 47 07 66 9 dB This instrument s unique IAE IEU RAR HE feature is its patented 5 4 2009 10 16 16 47 11 71 dB 5 2009 10 16 16 47 13 82 3 dB technique for storing 6 2009 10 16 16 47 15 92 3 dB i 8 7 2009 10 16 16 47 17 93 1 dB sampled data in Excel 9 8 2009 10 16 16 47 19 93 1 dB format on removable 9 2009 10 16 16 47 21 89 8 dB 10 2009 10 16 16 47 23 90 2 dB PO E R E a er E E a SD memory cards Patented Technology Ue a CENDA Class 1 Sound Level Meter with Excel Formatted Data Logging SD Card e Measures sound levels of machinery or an environment e Auto power off function Included Accessories e Hard carrying case e Sound wind shield ball e 2GB SD memory card e User s manual Specifications e Big 2 5 in diagonal front panel green backlit LCD is easy to read e Makes measurements in auto ranging mode or within a manually settable range e Displays maximum and minimum readings and holds any reading e Performs automatic data logging at sampling time settable from 1 second to 9 hours e Also supports manual loggin2. elative Humidity 0 to 85 Power Consumption e 8 mADC normal operation with backlight off and SD card not saving data e 14 mADC with backlight on and card saving data e 44 mADC with backlight on and card saving data Dimensions of Meter 9 65 x 2 68 x 1 77 in 245 x 68 x 45mm Weight of Meter 1 08 Ib 489g Power Source Six AA batteries or optional 9 VDC AC adapter General Tools amp Instruments 80 White Street New York NY 10013 3567 TEL 212 431 6100 TOLL FREE 800 697 8665 sales generaltools com www generaltools com DSM403SDSS Printed in USA 5 12
3. g and changing of card storage location Optional Accessories e OVDC adapter for 110V power supply General P N AC1 e SDRD1 SD Card Reader Aur UTD No DSM403SD Embedded Microcontroller Custom one chip LSI device Display Type LCD with green backlight Display Size 2 05 x 1 5 in 52 x 38mm Parameter Measured dB Frequency Range 31 5 Hz to 16 kHz Measurement Range e 30 to 130 dB in auto ranging mode e User can also select fixed range of 30 to 80 dB 50 to 100 dB or 80 to 130 dB Measurement Weighting e By frequency using Class IEC 61672 standard frequency weighing uses A or C standard e By time using Class 1 IEC 61672 standard time weighting is fast or slow 200 ms or 500 ms response time Measurement Accuracy e With A frequency weighting 2 0 dB 31 5 Hz 1 5 dB 63 Hz 1 5 dB 125 Hz 1 4 dB 250 Hz 1 4 dB 500 Hz 1 1 dB 1 kHz 1 6 dB 2 kHz 1 6 dB 4 kHz 2 1 dB and 3 1dB 8 kHz 3 0 dB and 6 0 dB 12 5 kHz 3 5 dB and 17 0 dB 16 kHz Measurement Resolution 0 1 dB Data Logging Sampling Time 1 second to 1 hour Settable Parameters Date time auto power off beep sound sampling time decimal point or comma decimal division A or C frequency weighting fast or slow time weighting Storable Recallable Readings Maximum minimum SD Card Capacity 1 GB to 16 GB Operating Temperature 32 to 122 F 0 to 50 C Operating R
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