RS485 Signal Ammonia (NH3) Gas Sensor

Intelligent Ammonia NH3 Gas Sensor

The Besian Intelligent Ammonia NH3 Gas Sensor is an intelligent sensor launched primarily for gas equipment manufacturing enterprises, including industrial process gas control equipment, environmental monitoring gas equipment, gas analysis instrument equipment, etc.; it is developed and produced mainly to solve problems such as the wide variety of gas detections, incompatibility of gas sensors, complex production calibration, and limited development and replacement.

By adopting the intelligent Hydrogen Sulfide H2S sensor module developed by our company, you only need to develop one product to meet the monitoring needs of more than two hundred kinds of toxic and harmful gases. Moreover, the production and replacement processes are simple, no need to re-open molds, significantly reducing the enterprise's R&D costs, production costs, and after-sales costs.

At the same time, the sensor is easy to operate, accurate in measurement, and reliable in operation, suitable for different requirements of industrial field or laboratory measurement. The sensor features simultaneous voltage and serial output, facilitating customer debugging and use.

The Intelligent Ammonia NH3 Gas Sensor is based on high-precision gas-sensitive elements, converting the weak output signal of the sensor into standard signals that are easier for customers to apply, such as 0~5V, 4~20mA, TTL, RS485, etc. The intelligent gas sensor has been calibrated and tested before leaving the factory; customers can directly collect and use the signal. At the same time, it has a small package size, can detect many types of gases, and has a unified structure, facilitating direct use by customers or secondary development needs.

The Intelligent Ammonia NH3 Gas Sensor is a product launched to meet current gas detection needs. The sensor processes the output signals of sensors with various detection principles through professional high-precision amplification circuits, noise-free processing, temperature compensation, high-purity gas calibration, and other steps, converting gas concentration signals into standard digital and analog signals. Users do not need to deal with complex and tedious gas detection principles, detection types, calibration difficulties, etc., and can directly use the gas sensor to read accurate gas concentration information.

Product Features

Intrinsically safe circuit design, supports hot-swapping;

Compatible with sensor elements based on electrochemical, infrared, catalytic, semiconductor, PID photoionization, and other principles;

Unified structure, same communication, capable of detecting over 1000 types of gases;

Can simultaneously output digital and analog signals, facilitating customer debugging and use;

Built-in temperature and humidity compensation, factory calibrated, ready to use;

Small size, high precision, easy communication;

Comes with professional testing software, supports self-calibration and calibration

Recommended Detection Parameters

Detailed Technical Parameters

1) Operating Voltage: DC5-12V-24V±1%;

2) Operating Current: Specific according to detection principle;

3) Measured Gases: Toxic and harmful gases, flammable and explosive gases, volatile organic compounds;

4) Installation Method: Plug-in type, fixed type, external type;

5) Measurement Range: Select according to requirements;

6) Detection Principle: Electrochemical/Infrared/Semiconductor/Thermal Conductivity/Optical PID, etc., selected according to environment

7) Resolution: 0.001, 0.01, 0.1, 1ppm;

8) Response Time: <10s

9) Sampling Accuracy: ±2%FS;

10) Warm-up Time: 30s;

11) Repeatability: ±1%FS;

12) Long-term Zero Drift: ≤1%FS/year;

13) Operating Temperature: -20～55℃;

14) Operating Humidity: 10～95%RH (no condensation);

15) Storage Temperature: -40～70℃;

16) Operating Pressure: 86kPa～106kPa;

17) Housing Material: Aluminum alloy/Stainless steel;

18) Output Interface: Optional;

19) Service Life: Electrochemical more than 2 years; Infrared more than 5 years;

20) Warranty Period: 1 year

21) Output Voltage: 0.4-2.0VDC (standard), 4-20mA, TTL, RS485, etc. optional;

22) Dimensions: Square/Cylindrical structure;

23) Comes with professional communication software.

Detection Reference Basis

GB50838-2015 "Technical Code for Urban Utility Tunnel Engineering"

GB/T 51274 "Technical Standard for Monitoring and Alarm System Engineering of Urban Utility Tunnel"

GBZ/T205 "Code of Protection for Occupational Hazards in Confined Spaces"

GB12358-2006 Gas Detectors and Alarms for Workplace Atmosphere - General Technical Requirements

Sensor Installation:

The Intelligent Ammonia NH3 Gas Sensor is designed to be installed on the sensor socket in a plug-and-play manner. To ensure reliable connection, dedicated sockets should be selected. The socket should be arranged according to the pin correspondence, installed vertically, and welded firmly. According to the special requirements of users, the pin plug-in method may not be used, but an external lead wire method may be adopted; the wire length generally does not exceed 150mm. In non-explosion-proof places, hot-swapping with power on is allowed. In work sites with explosion-proof requirements, the power supply of the equipment connected to the sensor must be turned off before installation.

Application Market

The Intelligent Ammonia NH3 Gas Sensor is inseparable from fields such as petroleum, petrochemicals, metallurgy, chemical industry, electric power, telecommunications, gas, mining, pharmaceuticals, municipal sewage treatment, indoor environment, atmospheric environmental protection, transportation equipment, transportation, tunnel safety, underground parking lots, etc. In recent years, it is mainly used in environmental data collection, gas monitoring, Internet of Things, drones, industrial robots, grid-based atmospheric environment monitors, micro-air quality monitoring stations, etc. Its monitoring effect has been widely recognized by users.