Function description: The sturdy structure and effective ultrasonic cleaning make our turbidity and suspended solids probes very suitable for use in environments such as sewage treatment plants. Accurate testing and low maintenance are its main features. Detailed introduction of suspended solids/turbidity analyzer

Suspended Solid Concentration Sensor ViSolid 700 IQ andIQ Sensor Net System HostSupporting use, real-time online monitoring of turbidity!

Principle of suspended solid concentration testing
As the concentration of suspended solids continues to increase, suspended particles in water will interact with each other. On the one hand, incident light cannot reach all particles, and on the other hand, scattered light in the 90 degree direction will be blocked by a large number of particles, making it impossible to sense. Therefore, when testing high concentrations, it is necessary to change the way to test scattered light in the other direction. WTW uses two methods to test the concentration of suspended solids, using 60 degree scattered light at low concentrations and 180 degree backscattered light at high concentrations.




characteristic:
The most advanced ultrasonic cleaning technology
Compliant with EN ISO 7027
Using precision optical components
The optical lens is made of wear-resistant sapphire
SensorCheck electrode self checking function ensures reliable operation
Good long-term stability
Strictly and accurately calibrated before leaving the factory
integration
Firm structure
No wear parts
Maintenance Province

Turbidity and suspended solids are two important indicators for water quality monitoring. Online testing of turbidity and suspended solids usually uses infrared light scattering method, which is mainly used in surface water, aeration tanks, tap water, circulating water, sewage treatment plants, sludge reflux control, and discharge monitoring.

A clean sensor is a prerequisite for reliable testing
Optical lenses are most afraid of contamination, and if there is dirt on the surface, it will lead to incorrect test results, making it difficult to determine the magnitude of the error caused. Moreover, after contamination, particles will exponentially adhere to the contaminated lenses, exacerbating the degree of pollution, especially in harsh application environments such as sewage treatment plants. The real problem lies in how to avoid microbial scaling. Therefore, even after manual cleaning and wiping, the sensor still needs special cleaning to ensure thorough cleaning.

New turbidity VisoTurb 700 IQ and suspended solids sensor ViSolid 700 IQ

The successful launch of VisoTurbandViSolid sensors declares that WTW truly has its own optical sensors, namely turbidity and suspended solids sensors. These sensors are equipped with the most advanced and reliable ultrasonic cleaning components, ensuring that the sensors can operate reliably for a long time with minimal maintenance. The turbidity sensor of WTW adopts the scattered light turbidity method, which complies with the ENISO7027 standard. The suspended solid sensor adopts the scattered light testing method. Another major feature of the above sensors is their very wide testing range, with VisoTurb turbidity ranging from 0-4000 FNU and ViSolid suspended solids ranging from 0-300 g/lSiO2. The instrument has an AutoRange automatic range switching function to achieve optimal resolution. Therefore, using only two types of sensors can test almost all samples, from drinking water to viscous sludge.
The standard equipped ultrasonic automatic cleaning system is not easily worn out.

The basic principle is briefly described as follows:
There is an ultrasonic generator on the sensor, and as long as the sensor is connected to the system, high-frequency ultrasonic signals are generated, causing the optical lens to vibrate continuously with an amplitude of several micrometers. At the center of the lens, the amplitude is the highest. This can prevent any form of pollutants from accumulating on the lens, ensuring continuous and reliable operation. Some calcium salts will still adhere to the sensor over time, forming dirt that is difficult to remove even with a brush or other cleaning agents, and can only be removed by acid washing. Ultrasonic vibration can also prevent bubbles from accumulating in the testing area and interfering with the test, as bubbles also scatter some light.

The maintenance cost is reflected in the following aspects:
a. Compared with traditional sensors with scraping blades, the sensor surface of WTW is very smooth and flat, and dirt is not easily attached to the surface of the lens.
b. The continuous ultrasonic cleaning system prevents pollutants from adhering to the sensor surface from the beginning and can also eliminate bubble interference.
c. Therefore, this type of sensor has a wide range of applications and can operate reliably for several weeks without any maintenance or cleaning.
The sturdy structure and effective ultrasonic cleaning make our turbidity and suspended solids sensors very suitable for use in environments such as sewage treatment plants. Accurate testing and low maintenance are its main features.

Introduction to IQ SENSOR NET System Host:

Single point multi parameter testing system: 182 system (1 to 4 sensors)

Detailed introduction:http://www.lawlink.cn/produceDetail.aspx?ID=19

◆ Can connect 1 to 4 sensors, suitable for situations with few testing points/parameters, such as testing 4 different parameters in one pool.
Multiple output information options available, such as RS485, MODBUS, PROFIBUS, or 0/4-20mA analog current output

Multi point distributed sensor testing network: 2020XT system (capable of connecting up to 20 sensors)
Detailed introduction:http://www.lawlink.cn/produceDetail.aspx?ID=7
◆ Up to 20 sensors can be connected, which is suitable for occasions with many test points. The distributed network system has advanced technology and excellent performance. The display terminal is mobile and supports hot plug
Multiple output signal modules are available for selection, such as RS485, MODBUS, PROFIBUS, or 0/4-20mA analog current output