Introduction

Principle & Structure

The turbidity sensor is based on the combined infrared absorption and scattered light method. The infrared light emitted by the light source is scattered by the turbidity in the sample, and finally converted into an electrical signal by a photodetector, and the turbidity value of the sample is obtained after analog and digital signal processing.

Features

● The sensor adopts double beam infrared scattering photometer detection technology to achieve better repeatability and stability;

● The application of ISO7027 infrared light scattering technology can effectively eliminate the influence of sample color;

● Built-in self-diagnosis function to ensure accurate data;

● Optional cleaning brush automatic cleaning function, greatly reducing the amount of sensor maintenance;

● Digital sensor, strong anti-interference ability, long transmission distance;

● Standard digital signal output, which can realize integration and networking with other equipment without transmitter;

● The on-site installation of the sensor is convenient and fast, realizing plug and play;

● The use is simple, the results are reliable, and the interface operation instructions can reduce operation errors;

● A visual alarm system is set up to provide important alarm functions;

● The controller can be wall mounted/panel mounted/pipe mounted.

application

On-line monitoring of turbidity in the water inlet, sedimentation tank and other links of water works;

On-line monitoring of turbidity in sewage plants, various industrial production process water and wastewater treatment processes, etc.

technical parameter


Sensor technical parameters

Measuring range:Turbidity: 0.01-100 NTU, 0.01-4000 NTU
measurement accuracy:Less than ±2% of the measured value, or ±0.1NTU, whichever is greater
Pressure range:≤0.4Mpa
calibrationSample calibration, slope calibration
Sensor main materialBody: 1.4435 (316L) (normal version), titanium alloy (sea water version);
Upper and lower cover: PVC, cable: PVC
storage temperature-15~65℃
Operating temperature0 to 45°C
sizeDiameter 60mm*Length 256mm
flow rate≤2.5m/s、8.2ft/s
Protection classIP68/NEMA6P
weight1.65KG
cable lengthStandard 10m cable, extendable to 100m

Transmitter Specifications

Show output:128*64 graphic dot matrix LCD, with strong LED backlight, can be operated under direct sunlight
AC power supply:AC220V、50HZ
DC power supply:DC24V
Main material:PA66+GF25+FR (top cover)
Aluminum alloy powder spraying (lower shell)
output:Two-way 4...20mA analog output, program setting response parameters and corresponding ranges
Relay:Set three-way relays, program setting response parameters and response values
Digital communications:Equipped with MODBUS RS485 communication function, which can transmit measured values ​​in real time
storage temperature:20...70℃
Operating temperature:15...60℃
waterproof level:IP65/NEMA4X
size:145mm*125mm*162mm (L*W*H)
weight:1.3KG

Selection table

AT35A-Turbidity sensor

Probe Material

1.4435(316L)+PVC

Titanium alloy (suitable for sea water)

Measuring range

0.01...100NTU (low range)

0.01...4000NTU (mid-range)

All-in-one cleaning scraper

No scraper function

With scraper function

cable length

Standard matching cable length 10 meters

M stands for meters, followed by items to represent the actual cable length, up to 100 meters.
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.
AT35B-Turbidity transmitter controller

Power supply

DC24V

AC220V,50HZ,5W

output signal

Standard configuration: Turbidity 4...20mA output * 2 outputs + relay output * 3

Standard configuration: Turbidity 4...20mA*1 output + Temperature 4...20mA*1+Relay output*3

Alternatives: Additional Equipment

No additional accessories

MODBUS-RTU RS485 communication function, which can transmit measured values ​​in real time

Matching ABS material instrument protection box

Matching 1.4301 (304) material instrument protection box (indoor)

Matching 1.4435 (316L) material instrument protection box (outdoor)
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.
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