





Class 1 Sound Level Meter – SV 971A
Applications
|
Sound measurements |
|
|
Environmental noise |
|
|
Occupational noise |
|
|
Building acoustics |
Hardware Features
|
Number of channels |
1 |
|
Self-vibration detection |
|
|
Auto-calibration |
|
|
Bluetooth |
|
|
Communication Interfaces |
USB, Bluetooth |
|
Display |
|
|
Keyboard |
8 keys |
|
Memory |
uSD card 32 GB |
|
Battery type |
4 x AAA |
|
Operating time |
16-24 hours |
|
Operating temperature range |
-10 °C to 50 °C (14 °F to 122 °F) |
|
Humidity range |
up to 95 % RH, non-condensed |
|
Weight |
225 grams |
|
Size |
232.5 x 56 x 20 mm |
Sound measurements features
|
Standards |
Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014 |
|
Type approvals |
Pending |
|
Microphone type |
ACO 7152 |
|
Preamplifier type |
SV 18A |
|
Linear operating range to IEC 61672 |
24 dBA Leq ÷ 140 dBA Peak |
|
Total measurement range |
17 dBA Leq ÷ 140 dBA Peak |
|
Internal noise |
< 17 dBA Leq |
|
Frequency range |
5 Hz ÷ 20 kHz |
|
Weighting filters |
Frequency weighting: A, B, C, Z, LF |
|
Time constants |
Time Weighting: Slow, Fast, Impulse |
|
Exchange rates |
2, 3, 4, 5, 6 |
|
Criterion levels |
adjustable |
|
Profiles per channel |
3 |
|
Min logging step |
100 ms / 2 ms in RT60 |
|
Statistics |
Ln (L1-L99) |
|
Statistics in octaves or third octaves |
|
|
Audio recording |
option |
|
Voice coments |
|
|
1/1 octave |
option |
|
1/3 octave |
option |
|
RT60 |
option |
|
STIPA |
option |
















Realtools Asia(ศูนย์รวมเครื่องมือวัดและชุดทดสอบอุตสาหกรรม)