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SM-70 Sound Level Meter |
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The SM-70 sound level meter has been
designed for simple noise surveys and sound level checks. Easy to
use for measuring noise in factories, industrial complexes, fire
alarms and other alarm systems, and sound system installations.
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Features
- Measuring level range from 35dB to 130dB.
- Frequency range 31.5Hz – 8kHz.
- A and C weightings for checking compliance with safety
regulations as well as acoustic analysis.
- Slow (1 sec) and fast (125ms) response settings to check
peak and average noise levels.
- Maximum hold feature to measure peak sound levels.
- Over and under range indicator.
- DC millivolt output for data analysis and recording
(10mV/dB).
- CE, designed to meet IEC651 and ANSI S1- 4 standards.
- Accessories included are carrying case, 9V battery,
screwdriver and instruction manual.
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Specifications |
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Standard Applied |
According to IEC 651,
ANSI S1.4 |
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Frequency Range |
31.5Hz to 8kHz |
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Measuring Level
Range |
35dB to 130dB |
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Frequency
Weighting |
A/C |
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Microphone |
1/2 inch Electric
condenser microphone |
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Display |
LCD 4-digits |
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Display Period |
0.5 sec |
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Digital Display
Resolution |
0.1dB |
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Time Weighting |
Fast (125mS), Slow (1
sec) |
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Level Ranges |
Lo: 35db to 100dB and
Hi: 65dB to 130dB |
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Accuracy |
±2.0dB (under reference conditions) |
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Dynamic Range |
65dB |
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Alarm Function |
'OVER' is shown when
input is out of range |
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Maximum Hold |
Hold readings, with
decay <1dB/3-minutes |
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Calibration |
Electrical
calibration with the internal (1kHz sine wave) |
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AC Output |
0.65Vrms at full
scale, output impedance 600Ω approx. |
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DC Output |
10mV/dB, output
impedance 100Ω approx. |
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General Specifications |
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Power Supply |
One 9V battery Type
MN 1604 |
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Battery Life |
50-hours (Alkaline
cell) approx. |
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Operating
Temperature |
0°C
to 40°C (32°F to 304°F) |
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Operating Humidity |
10 to 90% R.H. |
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Storage
Temperature |
-10°c
to 60°C (14°F to 140°F) |
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Storage Humidity |
10% to 75% R.H. |
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Dimensions |
240mm (L) x 68mm (W)
x 25mm (D) |
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Weight |
210g including
battery |
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Included Accessories |
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Complete with Carrying Case,9V battery
installed, screw-driver, windscreen and Users Manual. |
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