Designed to meet the measurement requirements of safety engineers, health, industrial safety offices and quality control in various environments.
A and C weightings for checking compliance with safety regulations as well as acoustic analysis
Measuring ranges: A weighting 30 – 130 dB, C weighting 35 – 130 dB
Frequency range: 31.5 Hz – 8 kHz
Display with 0.1 dB steps on a 4 digit LCD
Slow (1 sec) and fast (125 ms) response settings to check peak and average noise levels
Max/min recording
Internal memory, 14,000 records
Recording intervals from 1 second to 8 hours
PC computer download capabilities
Data hold to freeze reading on digital display
CE, designed to meet IEC651 type 2, ANSI S1.4 type 2
The Amprobe SM-20A Sound Meter has been designed to check compliance with safety regulations and perform acoustic analysis by safety engineers, health, industrial and safety offices as well as quality control. The SM-20A offers a PC interface.
They use two different weighting filters required by the IEC651 and ANSI S1.4 Type 2 for audio filtering. The A weighting is for general noise sound level and the C weighting is for measuring sound level of acoustic material control in various environments (ie 94 dB 1 kHz, etc).
What’s Included
SM-20A
Carrying case
Battery (installed)
USB cable download and software CD
Product Specification
Specifications
Features
SM-10
SM-20A
Microphone
1/2 Electret condenser microphone
Standard applied
IEC 651 Type 2, ANSI 1.4 Type 2
Dynamic range
50 dB
Time weighting
Fast (125 mS), Slow (1 sec)
Frequency range
31.5 Hz → 8 kHz
Measuring level range
(Auto Range) A-Weighting: 30 dB → 130 dB C-Weighting: 35 dB → 130 dB
Data
Data hold
Min/max
Internal memory
–
14,000 records
Specifications
Display:
4 digits LCD
Microphone:
1/2 inch Electret condenser microphone
Power supply:
9V NEDA 1604, IEC 6F22, JIS 006P battery
Auto power off:
Approx. 5 min
Environment:
Indoor operation, < 2000 m
Standard applied:
IEC 651 Type 2, ANSI 1.4 Type 2
Dynamic range:
50 dB
Resolution:
0.1 dB, display update: 0.5 sec.
Time weighting:
FAST(125mS), SLOW(1 sec)
Accessories:
Carrying case, windscreen, User manual and 9V battery