เครื่องวัดเสียง General Tools DSM402SD พร้อม SD Card

Measurement Range: 30 to 130 dB
Resolution: 0.1 dB
Sampling Time: 1 second to 1 hour
SD Card Capacity: 1 GB to 16 GB
Performs automatic data logging
Supports manual logging and changing of card storage location

ยี่ห้อสินค้า (Brand) ของประเทศจีน
รหัสสินค้า: DSM402SD หมวดหมู่:
ระยะเวลาจัดส่งสินค้า: 15 ถึง 30 วัน
การจัดส่งสินค้า: ฟรีทาง Kerry หรือ ไปรษณีย์
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Features:

  • Measures sound levels of machinery or an environment
  • Big (2.5 in. diagonal) front-panel green backlit LCD is easy to read
  • Makes measurements in auto ranging mode or within a manually settable range
  • Displays maximum and minimum readings and holds any reading
  • Performs automatic data logging at sampling time settable from 1 second to 9 hours
  • Also supports manual logging and changing of card storage location
  • Auto power off function

Packaging Include:

  • Hard carrying case
  • Sound wind shield ball
  • 2 GB SD memory card
  • User’s manual

Specifications:

Specifications:
Embedded Microcontroller Custom single-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 8 kHz
Measurement Range 30 to 130 dB in autoranging mode
User can also select fixed range of 30 to 80 dB, 50 to 100 dB, or 80 to 130 dB
Measurement Weighting By frequency: frequency weighing uses “A” or “C” standard
By time: time weighting is fast or slow (200 ms or 500 ms response time)
Measurement Accuracy With “A” frequency weighting: ± 3.5 dB @ 31.5 Hz, 2. 5 dB@ 63 Hz, 2 dB @ 125 Hz, 1.9dB @ 250 Hz, 1.9 dB @ 500Hz, 1.4 dB @ 1 kHz, 2.6 dB@ 2 kHz, 3.6 dB @ 4 kHz, 5.6 dB @ 8 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 Relative Humidity 0 to 85%
Power Supply Six Alkaline “AA” batteries or optional 9-VDC AC adapter
Power Consumption 8 mADC (normal operation, with backlight off and SD card not saving data)
30 mADC with backlight on and card saving data
44 mADC with backlight on and card saving data

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General Tools DSM402SD User Manual

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