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Introduction

Principle & Structure

The suspended solids/sludge concentration sensor is based on the combined infrared absorption and scattered light method. The infrared light emitted by the light source is scattered by the suspended particles in the sample, and finally converted into an electrical signal by the photodetector, and the suspension of the sample is obtained after analog and digital signal processing. material/sludge concentration.

Features

● The sensor adopts the principle of double beam infrared scattering photometer to achieve good repeatability;

● Complying with ISO7027 standard method (infrared light scattering technology) can 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, special transmitter-free industrial and mining can realize integration and networking with other equipment;

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

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

● English and Chinese display can be switched, and it is more convenient to use Chinese.

application

On-line monitoring of suspended solids/sludge concentration in various technological processes of sewage treatment plants; on-line monitoring of suspended solids/sludge concentration in various industrial production processes such as water use and wastewater treatment processes.

technical parameter


Sensor technical parameters

Measuring range:0.01-20000 mg/L
storage temperature:-15 to 65℃
0.01-45000 mg/L
Operating temperature0 to 45°C
0.01-120000 mg/L
size:Diameter 60mm*Length 256mm
Protocol customization range
weight:1.65KG
measurement accuracy:Less than ±5% of measured value (depending on sludge homogeneity)
Protection classIP68/NEMA6P

cable lengthStandard 10m cable, extendable to 100m
Pressure range:≤0.4Mpa
Sensor main material:Body: SUS316L (normal version)
Flow rate:≤2.5m/s、8.2ft/s
Body: titanium alloy (sea water version);
calibration:Sample calibration, slope calibration
Upper and lower cover: PVC, cable: PVC
AC power supply:AC220V、50HZ 
DC power supply:DC24V
Main material:PA66+GF25+FR (top cover)
Aluminum alloy powder spraying (lower shell)
storage temperature:20...70℃
Operating temperature:15...60℃
waterproof level:IP65/NEMA4X
size:145mm*125mm*162mm (L*W*H)
weight:1.3KG
Show output:128*64 graphic dot matrix LCD, with strong LED backlight, can be operated under direct sunlight
Display Contrast:0...9, 9 gears adjustable
output:Two-way 4...20mA analog output (measured value + measured value or measured value + temperature value), 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

Transmitter technical parameters

Selection table

AS35AA-Suspended solids concentration meter sensor (SS)
AS35BA-Sludge Concentration Sensor (MLSS)

Probe Material

1.4453(316L)+PVC

Titanium alloy (suitable for sea water)

Measuring range

0.01-20000 mg/LB0.01-45000 mg/L

0.01-120000 mg/LDProtocol customization 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.

AS35AB-Suspended Solids Concentration Transmitter (SS)
AS35BB-Sludge Concentration Transmitter (MLSS)

Power supply

DC24V

AC220V,50HZ,5W

output signal

Standard configuration: Measured value 4...20mA output * 2 output + relay output * 3

Standard configuration: measured value 4...20mA*1 output + temperature 4...20mA*1+relay output*3

Alternatives: Additional Equipment

No additional accessories

Optional: MODBUS RS485 communication function, real-time transmission of measured values

Matching ABS material instrument protection box

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

Matching 1.4435 (316L) material instrument protection box (outdoor)

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