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산업용 MODBUS RS485 암모니아 가스 센서
(Industrial-grade MODBUS RS485 NH3 Sensor
- Waterproof Connector)
개요
- 본 제품은 산업용 MODBUS RS485 암모니아 가스 센서입니다.
- 암모니아 및 온도 습도를 동시에 측정할 수 있습니다.
- RS485 인터페이스를 가지고 있습니다.
특징
- 3-in-1: Monitor 3 measurements - ammonia concentration, air temperature, and humidity in 1 single sensor.
- High Resistance of Disturbance: Tolerate extreme temperature and exposure to high levels of ammonia gas.
- User-friendly: Easy to set up and support adjustment for different uses.
- Advanced Technology: Apply the revolutionary solid polymer electrochemical technology for gas detection.
- Support Multiple Applications: Livestock farming, gas leaking detection for heavy industry and atmospheric environmental gas detection, etc.
-
Specification
The basic parameters
Product model
S-NH3-01
Supply Voltage
5 ~ 24V DC (recommended 5V power supply).
Supported Protocol
MODBUS-RTU RS485
IP Rating
IP65 (The equipment should be protected from direct sunlight and rain over long periods of time).
Operating Temperature
-40°C to 50°C (best operating temperature 20 to 35 °C).
Operating Humidity
15 to 95% RH (non-condensation) (best operating humidity 50%RH).
Ambient Pressure
Atmospheric pressure ±10%.
Cable Length
2 meters
Measurement Parameters
Measurement
Measurement accuracy
Resolution
Ammonia
0~100 ppm
± 5% F.S
0.1 ppm
Temperature
-40~50 °C
± 0.5 °C
0.1 °C
Humidity
10~95 %RH
± 5%
0.1 %RH
Power
Operating Current
6mA（Max，5V DC）；3.2mA（typ.12V DC）
Performance reference
Parameter
Min
Typical value
Max
Unit
RS-485 mode
Warm-up Time [1]
—
5[2]
—
minutes
Poll Rate [3]
—
1
—
seconds
Response time[4]
—
30
—
seconds
[1] The time from when the sensor is powered on to when the data is read. Note the parameter when the sensor is powered on.
[2] If started in an environment with clean air it requires less time
[3] The measurement data update interval, after the power-up warm-up time, if the power supply continues, the sensor periodically updates the reading at this interval.
[4] T90＜30s
- The S-NH3-01 is an industrial-grade IP65-rated electrochemical detection of solid polymers with a revolutionary innovative technique in electrochemical detection areas with wide applications in farming, industrial areas, and meteorological monitoring.
-
Ammonia gases are the most common cause of the stinky smell in our daily life and it has a tremendous effect on our health. A small number of ammonia gases only make you suffer from a bad smell. However, when one area concentrates a large number of large ammonia gases, it will become toxic gas and hurt your olfactory system.
There are different sources of ammonia gases whether by humans or by nature. One major source is the excretion produced by the livestock farming industry. Another major source is energy generation in heavy industry because burning coal, fuel, and natural gases produce a huge amount of ammonia gas, which increases the risk of improperly disposing of ammonia gas.
RS485 NH3 Sensor S-NH3-01 adopts an imported sensor chip from Germany with the ability to monitor ammonia concentration, air temperature, and humidity at the same time. The sensor transmits data with the help of the RS485 Modbus RTU protocol. The sensor contains excellent features as it can respond to gas or environment with high speed and sensibility, tolerate disturbance, and adopts a compensation algorithm and adjustable standards, all of that assure the accuracy of the sensor. This equipment was powered by 5V DC, able to support most of the sensors in the market. Equipment can be easily integrated into most of the system without a complex setup procedure.
Solid polymer electrochemical technology is a revolutionary innovation in the field of electrochemical detection. This technology is based on the principle of electrochemical catalytic reaction triggered by different target gas leading to sending out a different electrical signal that is directly proportional to the gas concentration. The sensor module is composed of three catalytic electrodes, a solid electrolyte, and gas diffusion holes. The gas reaches the working electrode of the sensor through the diffusion holes, an electrochemical redox reaction occurs on the porous micro-surface of the electrode, and the solid electrolyte conducts electron transfer and generates a current signal as an output. The current signal can characterize the gas concentration.
