S028 圖表式噪音計 Graphic Display Sound Meter

 

Covers 30 ~ 130 dB in the A scale and 35 ~ 130 dB in the C scale with a resolution of 0.1 dB and an accuracy of ±1.5 dB. Meets ANSI S1.4 and IEC 651 Type 2 standards, and includes A & C decibel frequency weighting scales, fast or slow response, AC or DC output, low battery indicator, peak function

Contains many advanced features including: An even larger LCD display with an analog bar graph, auto-ranging, min/max functions. Another special function allows you to accurately measure equipment noise in the presence of high background noise. Comes ready to use with a windscreen, 9V battery, instructions, and a hard shell carrying case.

Dimensions: 11½" × 3″ × 1½" (292 × 76 × 38 mm)
Weight: 9.9 oz (281 g)

 

SPECIFICATIONS:

Display: 3½ digits LCD

Range: 6 ranges in 10 dB step: 30 ~ 80 dB, 40 ~ 90 dB,
50 ~ 100 dB, 60 ~ 110 dB, 70 ~ 120 dB, 80 ~ 130 dB

Auto Range: 30 ~ 130 dB
Accuracy: ±1.5 dB
Frequency: 31.5 Hz to 8 KHz

Microphone Size: 6 mm (diameter) Electric Condenser Microphone

Measurement Weightings: Level A: 30 dB ~ 130 dB
Level C: 35 dB ~ 130 dB

Response: Fast – readout is maximum value @0.2 seconds
Slow – readout is maximum value @1.5 seconds

Output Signal: AC – 0.707 Vrms at full scale
DC – 10 mV per dB

Quasi-Analog Bar Indicator: 1 dB display steps, 50dB display range, updated every 50 ms

Operating Temperature: 32 ~ 122°F (0 ~ 50°C)

Operating Humidity: 10 ~ 90% Relative Humidity

Power Supply: One 9V battery (approximate life: 20 hours alkaline)

 

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