Explosion proof noise sensor

Explosion proof noise sensorCollect environmental noise and calculate the weight of different frequency points to calculate the weighted value of noise A. The data is transmitted to the current loop module through RS232 cable and the current is output according to the algorithm.

Explosion proof noise sensorparameter

Product model JHM-NS02
Accuracy range+/-3dB (1KHz 94dB point correction)
Conversion accuracy 0.1dB
Output mode 4-20mA current loop output
Frequency weighting characteristic A weighting characteristic
Toshiba capacitive microphone manufacturer (windproof outer cover)
Dynamic measurement range 30dB -130dB (automatic shifting)
Frequency response 20 Hz -20KHz
Dynamic characteristics 0.5 seconds
Working and storage temperature -20----60 ℃
Working and storage humidity 10--90RH%
Power standard DC24V (ripple<0.5%) current 80mA
Manufacturer: Beijing Jinghaiming Electronic Technology Research Institute

Intrinsic safety parameters:

1. Security level: Ex ia IIC T6

2. Working environment temperature: -20 to 60 degrees Celsius

3. Usage areas and standards

This product is used in environments with explosive gases in zones 0, 1, and 2

B Application Standards

GB3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment

GB3836.4-2010 Explosive Atmosphere Part 4: Equipment Protected by Intrinsic Safety Type "i"

Certificate No. 4: CCRI 21.2633X