1、 Turbidity probeVisoTurb

（1） Measurement principle

Turbidity is caused by suspended particles in water, which diffuse and reflect back into the incident light. Typically, this is achieved through 90 The scattered light in that direction is used as the test signal, and the unit measured in this way is calledNTU.

useFormazinThe unit measured by the instrument after calibration with standard solution is calledFNUThis method is suitable for testing low to medium ranges, from0.01arrive4000FNUThe scope. according toEN27027andISO7027Standard, adopted860nmInfrared light is used as a light source and is not affected by the chromaticity of the sample.

（2） Typical Applications

1、 drinking water

2、 surface water

3、 Sewage, aeration tank≤3 g/L TSS

（3） The advantages of using ultrasonic self-cleaning

1Strong cleaning power, truly achieving the purpose of cleaning optical windows

2Cleaning without delay, a way to achieve real-time cleaning function

3Long lifespan and durability

4Will not cause water ingress into the probe

5No maintenance consumables cost

（4） TheVisoTurb 700 IQ(F,SW)TECHNICAL INDEX

1、 Measurement principle:90Scattered light,DIN EN 27027standardISO 7027

2、 range/resolving power: 0.05~4000 FNU/ 0.001~1 FNU

0.1~4000 mg/L SiO2/ 0.001 mg/L~1 mg/L

0.0001~400 g/L TSS/ 0.001 mg/L~1 g/L

3Calibration: Turbidity: Formazine manufacturer calibration

SiO2：SiO2Manufacturer calibration

TSSUser calibration（DIN 38414Standard)

4Repeatability（DIN ISO 5725perhapsDIN 1319）：< 0.015 %perhaps≥ 0.006 FNU

5Probe self-test functionSensCheckPollution detection of optical windows; Cleaning system malfunction; event

Obstacle detection

6Probe cleaning: built-in ultrasonic self-cleaning

7Working environment temperature:0~+60℃Ultrasonic cleaning0~40℃）

8Voltage resistance:10Ba,1hope earnestly(F)

9Protection level:IP 68

10Material: Sensor:V4Astainless steel1.4571.POM+Titanium（SW）

11Optical Window: Sapphire

12Power:1.5W

13Response time:≤2s

IISludge concentration probeViSolid

（1） Measurement principle

Similar to turbidity measurement, sludge concentration measurement also uses scattered light measurement method. When the concentration of suspended solids is high, suspended particles in water will affect each other. On the one hand, the incident light cannot reach all particles, so the turbidity probe is used90The scattered light in that direction will be blocked by a large number of particles, making it undetectable. Therefore, when testing high concentrations, it is necessary to test the scattered light in the other direction in a different way.WTWTwo methods are used to test the concentration of suspended solids, and at lower concentrations60 Scattered light, used at high concentrations0Reflected light.

（2） Typical Applications

1、 The probe is equipped with two typical background curves.

2、 type1：> 3 g/L TSSThe aeration tank; Reflux sludge concentration; Pre filter effluent

3、 type2: Primary sedimentation tank; Secondary sedimentation tank; sludge thickener

（3） The advantages of using ultrasonic self-cleaning

1、 Strong cleaning power, truly achieving the purpose of cleaning optical windows

2、 Cleaning without delay, a real-time way to achieve cleaning function

3、 Long lifespan and durability

4、 Will not cause water ingress into the probe

5、 No maintenance consumables cost

（4） TheViSolid 700 (SW)TECHNICAL INDEX

1Range:0.003~1000 g/L TSS 0.0003~100% TSS

0.01~300 g/L SiO₂0.001~30% SiO₂

2、 resolving power:0.1 mg/L~1 g/L TSS 0.1 mg/L~0.1 g/L SiO₂

3、 Cleaning system: built-in ultrasonic cleaning

4、 Calibration: Typical sludge characteristics stored by the manufacturer: Background type1, background type2

Calibration user: Adjust by correction factor, calibrate one or more points

5、 Probe self-test functionSensCheckPollution detection of optical windows; Cleaning system malfunction

6、 Cleaning: Built in ultrasonic self-cleaning

7、 Working environment temperature:0~+60℃Ultrasonic cleaning0~40℃）

8、 Protection level:IP68

9、 Material: Sensor:V4Astainless steel1.4571.POM+Titanium（SW）

10、 Optical Window: Sapphire

11、 Voltage resistance:10hope earnestly