SenTec

SEM600 Wall Fixed Noise sensor

SEM600 noise sensor is a high-precision sound measurement instrument with a range of up to 30dB~130dB, which meets the daily measurement needs and is widely used in various fields such as home, office, workshop, automobile measurement, and industrial measurement.

Category

SEM600 noise sensor is a high-precision sound measurement instrument with a range of up to 30dB~130dB, which meets the daily measurement needs and is widely used in various fields such as home, office, workshop, automobile measurement, and industrial measurement.

This product adopts high-sensitivity condenser microphone with stable signal and high precision. It has the characteristics of wide measurement range, good linearity, convenient use, easy installation, and long transmission distance.

Parameters

DC power supply (default)10~30V DC (0-10V output type recommended DC24V power supply)
Power0.4W(RS485), 1.2W (analogy type)
Transmitter circuit operating temperature-20 ° C ~ + 60 ° C, 0% RH ~ 80% RH
Output signalRs485, Current output: 4~20mA, Voltage output: 0~5V/0~10V
Communication Interface485 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 settingsConfigure via the 485 interface with the supplied configuration software
Resolution0.1dB
Measuring range30dB~120dB
Frequency Range20Hz~12.5kHz
Response time≤3s
StabilityLess than 2% in use period
Noise accuracy±0.5 dB (in reference pitch, 94 dB @ 1 kHz)
Load capacityVoltage output: Output resistance ≤250Ω
Current output: ≤600Ω

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