Modbus485 noise sensor

NegotiableUpdate on 04/26

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The MODBUS485 noise sensor is a measurement device composed of the 485 module JHM-M485+JHM-NS02. It has a MODBUS485 interface output, passive call mode, and flexible settings for address and communication baud rate.

Product Details

Modbus485 noise sensorInstructions:

Bus Modbus485

Working voltage: DC 12V regulated power supply, working current 100mA (ripple<0.5%),

Automatic sending of startup device: 0xaa Addr Addr Factory default is 0xfa (250)

Example: Reading measurement data:

Command: 01 03 00 03 00 02 34 0B 8 bytes

ADDR Function Code Start Address Register Number CRC Check

Response: 01 03 04 00 05 06 08 E8 54

ADDR Function Code Byte Count UIN0 UIN1 UIN2 UIN3 CRC Check

UIN0, UIN1, UIN2 are the integer parts of noise, and UIN3 are the decimal parts.

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Read 0xaa address command: fa 03 00 03 00 02 21 80
Function code 06: Set communication address and baud rate;
Data length: 00 01, not equal to 01. The command is invalid.
Description: Set the module communication address and baud rate.

Modbus485 noise sensorparameter

Product model JHM-NS02

Specification 80mmX25mm

Measurement error+/-1.5dB (2Khz80dB point correction)

Conversion accuracy 0.1dB

Output mode extension 485

Frequency weighting characteristic A weighting characteristic

Toshiba capacitive microphone manufacturer (windproof outer cover)

A-weighted dynamic measurement range 30dB to 120dB (automatic shifting)

Frequency response 35 Hz to 20KHz

Dynamic characteristics FAST

Working and storage temperature -10---60 ℃