product details
The S500-ZY noise detector is mainly designed according to the requirements of the national standard GB/T 3785.1-2010 "Electroacoustic Sound Level Meter Part 1: Specification" and the international standard IEC 61672-1:2002 for Class X sound level meters at level 2. It is mainly used for real-time on-site measurement of various types of noise such as environmental noise, traffic noise, workplace noise, construction noise, and social life noise. With this module, customers no longer need to worry about complex noise signal processing, and can focus on their areas of expertise to create value for customers more quickly.
Functional Features
◆ 30~120dBA wide range, 20~12.5KHz wide frequency measurement
◆ Adopting high-performance pre polarized back polarized electret condenser microphone, with wide dynamic range and stable performance
Output interface: RS-485
Power supply: 24VDC
Technical Parameter
working voltage |
10~28V |
Power consumption |
27.8mA@24V |
Operating temperature of transmitter circuit |
-20℃~+60℃,0%RH~80%RH |
output signal |
RS485 ModBus RTU communication protocol |
UART or RS-485 communication parameters |
9600 N 8 1 |
measuring range |
50dB~120dB |
frequency weighting |
a-weighting |
Frequency response range |
20Hz~12.5kHz |
response time |
Fast mode: 500ms; Slow mode: 1.5s |
Stability |
Less than 2% within the usage cycle |
Reference calibration point |
94dB and 114dB calibration, reference sound pressure 20uPa, frequency 1kHz |
Noise accuracy |
± 0.5dB (at reference pitch, 94dB@1kHz ) |
Dust cover impact |
The impact within the range of 50~115dB is ≤ 0.5dB; the impact within other ranges within the range is ≤ 0.7dB |
work environment |
Air temperature: -40~+60 ℃ |
relative humidity |
25%~90% |
Static pressure |
65kPa~106kPa |
