Henan Suijing Environmental Protection Technology Co., Ltd. was established in 2018 and is located in Luoyang, an important industrial city in central China. The company is a manufacturing and production enterprise that provides water quality analysis instruments and meters for various industries and enterprises in Luoyang. Over the past few years, the company has adhered to the enterprise spirit of seeking truth from facts and exploring innovation, continuously advancing and rapidly growing in the water quality testing industry. The company's products are widely used in many fields such as water plants, petroleum, chemical, and food machinery manufacturing. Over the years, with professional products and a positive and enthusiastic work attitude, Suijing's footprint has spread to 30 provinces, municipalities and autonomous regions in China, and its scientific research innovation and service capabilities have rapidly improved

GNST-SS232
Suspended solids sensor
Product Introduction
The suspended solids online sensor adopts infrared light scattering method, which means that the incident light enters the water and scatters on the surface of the suspended particles. The scattered light intensity is detected on the light path at a certain angle to the incident light, and the suspended solids concentration in the water is obtained by the proportional relationship between the scattered light intensity and the suspended solids concentration.
Application field
The instrument is widely used in industries such as sewage treatment plant treatment process and discharge outlet water quality monitoring, other industrial wastewater treatment processes and discharge outlet water quality monitoring, and has been unanimously recognized by a large number of users.
Suspended solids sensor
Measurement principle
Infrared scattering light technology refers to the scattering of suspended solids in a sample solution by a beam of light, as shown in the figure below. The infrared light source emits light at a certain angle to the detection light, and the intensity of the light received by the detector is related to the suspended solids in the measured water body. Therefore, the concentration of suspended solids in the measured water body can be calculated by measuring the intensity of the scattered light.
Product Features
(1)Using a monochromatic infrared light source, unaffected by the color saturation of the sample
(1)Equipped with self-cleaning function, automatically removes light window stains and bubbles, maintenance free
(1)Sampling optics and digital filtering technology eliminate the influence of stray light, ensuring accurate measurement
(1)Corrosion resistant casing, waterproof ratingIP68, Can work underwater for a long time
(1)RS485 communication interface, standard Modbus protocol, easy to integrate
Technical Specifications
model |
GNST-SS232 |
working principle |
Infrared light scattering method |
Measure wavelength |
860nm |
measurement range |
(0~3000/10000/40000)mg/L(Other ranges can be modulated as needed) |
repetitiveness |
≤1% |
measurement accuracy |
±5% |
zero drift(24h) |
±1%. F.S |
Span Drift(24h) |
±3%. F.S |
detection limit |
1mg/L |
resolution |
0. 1mg/L |
Protection level |
IP68 |
communication interface |
RS485, standardModbusProtocol baud rate9600 Factory default address bits50 |
Dimensions |
(φ33*178)mm, cable10rice(customizable) |
material |
316Lstainless steel/PVC/Titanium alloy optional |
install thread |
upper endNPT3/4thread |
Working Voltage |
(9~36)V DC |
MTBF |
≥1440h/time |
energy consumption |
1 W(Motor brush rotation)0.4W(Motor brush not working) |
Cleaning Method |
Mechanical brush |
calibration cycle |
3~6month |
working environment |
(0~50)℃ |