Electrochemical Sensor Module: Toxic and Harmful Nitric Oxide, No Industrial High-Precision Gas Concentration Detection Module

Product Description

Module Introduction:
The integrated 4-20mA output product is a toxic gas detection module that integrates sensors and transmission modules. The product design is produced in accordance with national explosion-proof standards. The measuring element adopts advanced imported gas sensors, which have the characteristics of accurate measurement, long service life, high stability, and strong anti-interference ability; This module circuit design has been designed to prevent circuit reverse connection, high voltage, and excessive current, while considering lightning protection in product design.

Product characteristics

Main features of the module:
1. Choose advanced imported electrochemical sensors with long service life;
2. Choose high-precision operational amplifiers and power ICs with stable performance, sensitivity, and reliability;
3. Can accurately detect low or high concentrations of toxic gases;
4. Strong anti-interference ability in product design;
5. Product design includes over range protection, reverse polarity protection, and lightning protection;
6. Product design with low power consumption, standard 4-20mA two-wire signal output;
7. Connection interfaces for module sensors: pump suction, diffusion, flange, flange thread;
8. Working voltage: 8-36VDC;

Product Parameters

Module model:	YF-GK-V3
Gas detection:	Toxic gases (CO H2S SO2 CH2O H2O2, etc.)
Detection principle	Principles of electrochemistry
Sampling method	Diffuse pump suction flange type, flange thread type
response time	30 S to 40 S (sensor response speed)
Module detection accuracy	≤± 3% FS (actual concentration, higher accuracy depends on specific sensor)
Module repeatability	≤±2%
Modular line error	≤±2%
Module zero drift	≤± 2% (F.S/year)
Module operating temperature	-40~80ºC
Module environment humidity	0-95% RH (no condensation)
Sensor operating temperature	-20ºC-50ºC
Sensor working humidity	0-90% RH (no condensation)
signal output	4-20mA two-wire system, RS-485 output
transmission distance	100 meters
working voltage	DC 12-36 V
maximum power	≤0.8W
Product size	80*48mm
Explosion proof grade	Intrinsic safety type
Connecting cables	RVVP3×1.5mm2

Applicable scenarios

Module application field
Petroleum, petrochemical, metallurgical, chemical, power, telecommunications, gas, mining, pharmaceuticals, municipal sewage treatment, indoor environment, atmospheric environmental protection, transportation equipment, transportation, tunnel safety, underground parking lots.
 

Gas type

Table 1: Comparison Table of Measurement Type Number and Name (Gas Part, Customization for Other Gases)

Serial number	Chemical formula	Serial number	Chemical formula
01	CO	12	F2
02	H2S	13	HF
03	O2	14	HCL
04	NO2	15	HBr
05	SO2	16	COCl2
06	Cl2	17	SiH4
07	NH3	18	ClO2
08	H2	19	BR2
09	PH3
10	CH2O
11	O3