Sentec
SENTEC - Model SEM329 -SEM329 30dB-120dB Noise sensor
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SPECIFICATIONS
DC power supply (default)
10~30V DC
Power
0.4W
Transmitter circuit operating temperature
-20 ° C ~ + 60 ° C, 0% RH ~ 80% RH
Communication Interface
485 communication (MODBUS) protocol
Baud rate: 2400, 4800 (default), 9600
Data bit length: 8 bits
Parity mode: none
Stop bit length: 1 bit
The default ModBus communication address: 1
Support function code: 03
Parameter settings
Configure via the 485 interface with the supplied configuration software
Resolution
0.1dB
Measuring range
30dB~120dB
Frequency Range
20Hz~12.5kHz
Response time
≤3s
Stability
Less than 2% in use period
Noise accuracy
±0.5 dB (in reference pitch, 94 dB @ 1 kHz)