صدا سنج ، صوت سنج ST-815 Sound Level Meter
صدا سنج ST-815
دقت اندازه گیری ۲ to 61672
اندازه گیری مدهای slow/fast
دارای باراگراف و ذخیره اطلاعات با تایمر
ST- 815 Sound Level Meter
۸۱۵ Sound Level Meter is designed for noise project, quality control, illness prevention & cure and all kinds of environment sounds measurements. It is applied to the sounds measurement at factory, school, office, traffic access and household, etc.
This unit confirms to the IEC61672-1 class 2 for Sound Level Meter
۱٫This unit confirms to the IEC61672-1 class 2 for Sound Level Meters
۲٫MAX & MIN measurements
۳٫Over range display
۴٫Under range display
۵٫A & C Weighting
۶٫FAST & SLOW response
۷٫Digit LCD display with a resolution of 0.1dB , bargraph & white backlight
۸٫Readings memories
Specifications:
Standard applied |
IEC61672-1 Type 2,ANSI S1.4 Type2 |
Accuracy |
±۱٫۴dB |
Frequency range |
۳۱٫۵HZ ~ 8KHZ |
Dynamic range |
۵۰dB |
Level ranges |
LO:30dB~80dB Med:50dB~100dB |
Hi:80dB~130dB Auto:30dB~130dB |
|
Time weighting |
FAST ( 125mS ), SLOW ( 1s ) |
Microphone |
۱/۲ inch electret condenser microphone |
Resolution |
۰٫۱dB |
Reading display update |
۲ times/sec |
Bargraph display update |
۲ times/sec |