Current loop noise sensor 4-20mA

NegotiableUpdate on 01/21

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

The current loop noise sensor is a noise sensor with a current loop 4-20 output, consisting of a current loop module and a JHM-NS02 noise sensor. It is powered by DC24V and has a common ground non isolated output.

Product Details

Product Model	JHM-NS02
Specifications	80mmX25mm
accuracy	+/- 1.5dB(2Khz80dB point correction)
Conversion accuracy	0.1dB
output mode	Expand 4-20mA current loop
AWeighted measurement range	30dB to 120dB(Automatic shifting)
frequency response	35 Hz to 20KHz
Frequency weighting characteristic	AWeighted characteristics
Microphone manufacturer	Toshiba capacitive (windproof outer cover)
Dynamic characteristic time weighting	FAST
Working and storage temperature	-10 ----- 60℃
Working and storage humidity	10 ----- 90RH%
Power standard	DC9V-DC12V (ripple<0.5%) current 30mA
manufacturer	Beijing Jinghaiming Electronic Technology Research Institute

Module JHM-M420 Introduction:

Working voltage: DC 24V stabilized power supply, working current 100mA (ripple<0.5%)
Load: 0 ohms -750 ohms (sufficient load margin, output can short-circuit)
Current loop mode output: 4 mA -20 mA

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V+is connected to the positive pole O+and O - of a 24V power supply, and the output current loop is connected to the positive and negative poles. GND is connected to the negative pole of the power supply.

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Output algorithm: dB=(Io-4) * 100/16+30.

If the current is 15.2mANoise level: (15.2-4) * 100/16+30=100dB.