Seeed Studio S-DTS210-01 Industrial Turbidity Sensor User Manual

User Manual for Seeed Studio models including: S-DTS210-01 Industrial Turbidity Sensor, S-DTS210-01, Industrial Turbidity Sensor, Turbidity Sensor

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[PDF] Industrial Turbidity Sensor User Manual - Seeed Studio files.seeedstudio.com âº products âº SenseCAP

Industrial Turbidity Sensor User Manual

21 янв. 2025 г. — The S-DTS210-01 turbidity sensor is designed based on the principle of scattering light turbidity measurement. When a light beam is transmitted into the ...

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Industrial Turbidity Sensor User Manual

User Guide
Industrial Turbidity Sensor User Manual
Product Model: S-DTS210-01 VersionV1.0

User Guide
1. Product Introduction
The S-DTS210-01 turbidity sensor is designed based on the principle of scattering light turbidity measurement. When a light beam is transmitted into the water sample, turbidity particles in the sample cause the light to scatter. The sensor measures the intensity of the scattered light at a direction perpendicular to the incident light and compares it with internal calibration values to calculate the turbidity of the water sample. The final value is obtained after linearization processing.
Features:
90° scattering light principle, with an integrated temperature sensor Supports RS-485, Modbus/RTU protocols Optical fiber structure, offering strong resistance to external light
interference Infrared LED light source, ensuring high stability IP68 protection level, allowing normal operation in deep water Convenient, fast, stable, and easy to maintain.

2. Specification

User Guide

Model

S-DTS210-01

Measurement Principle

Scattered light method

Range Resolution

01000.0NTU 0.1NTU/0.1

Accuracy

±5% F.S, ±0.3°C

Calibration method Temperature Compensation
Output Operating Condition Storage Temperature

Two-point Calibration Auto Temperature Compensation
(Pt1000) RS-485(Modbus/RTU)
050<0.2MPa
-565

Installation Method

Immersion Mount, 3/4" NPT Pipe Threads

Cable Length

10 Meter

Power Consumption

0.3W@12V

Power Supply

1224V DC (Typical values 12V DC)

Protection Level

IP68

User Guide
3. Hardware Overview
3.1Wiring

3.2 Dimensions
Unit: mm Connector: M16-5-Pole waterproof M connector.

User Guide
4. Installation
The sensors are kept more than 5cm from the side walls and more than 10cm from the bottom.

5. RS485 Modbus Protocol
5.1Modbus Protocol
Modbus Protocol is widely used to establish master-slave communication between intelligent devices or sensors.
A MODBUS message sent from a master to a slave contains the address of the slave, the function code (e.g. 'read register' or 'write register'), the data, and a check sum(LRC or CRC).
Industrial Turbidity Sensor (S-DTS210-01) with RS485 interface, support Modbus protocol. The communication parameters to factory default values for:
Baud rate 9600 bps, one start bit, 8 data bits, no parity, one stop bit.

User Guide

5.2 Modbus Registers

Parameter Name
Measured Value &
Temperature

Parameter Type
Read, unsigned
short

Temperature Value
Turbidity Value
Temperature Calibration

0x0100 0X0101 0x1000

Turbidity Zero Point Calibration

0x1001

Read, unsigned
short Read, unsigned short Read/Write, unsigned short
Read/Write, unsigned short

Turbidity Slope
Calibration
Sensor Address
Baud Rate Settings
Restore Factory Setting

0x1003 0x2000 0x2003 0x2020

Read/Write, unsigned short
Read/Write, unsigned short
Read/Write, unsigned short
Write, unsigned
short

Number of Register (bytes)
4 (8 bytes)
1 (2 bytes) 1 (2 bytes) 1 (2 bytes)
1 (2 bytes)
1 (2 bytes)
1 (2 bytes)

Parameter Range and Description
4 double-byte integers: measured value, decimal places of the measured value, temperature value, and decimal places of the temperature value. x10 (25.6 temperature is displayed as 256, default 1 decimal place) NTU x 10 (10 NTU of turbidity is displayed as 100, defaulting to 1 decimal place) Write data is actual temperature value x 10; read data is temperature calibration offset x 10. Calibrated in zero turbidity water or distilled water, calibrated with a write data of 0. (Can also be calibrated in 0-10 NTU turbidity standards) Calibrate in 1000 NTU standard solution. The data written for calibration is the actual value of the standard solution x 10. The default is 50 and the data range is 1-255.

1 (2 bytes) 1 (2 bytes)

The default is 9600. write 0 can be set to 4800; write 1 can be set to 9600; write 2 can be set to 19200. The calibration value restores the default value after writing 0. Note that the sensor needs to be calibrated again after resetting before it can be used.

User Guide

5.3 Command Examples

(1) Change the slave address:

Number of registers
1

Function code 0x06

Default address 01

To change the Modbus device address of the sensor, change the device address 01 to 06, the example is as follows:

Send: 01 06 20 00 00 06 02 08

Response: 01 06 20 00 00 06 02 08;

Note: The address is changed to 06 and saved by power down.

(2) Baud rate:

Address
0x2003 (42004)

Number of registers
1

Function code 0x06

Default Value 1 (9600bps)

Supported values 0-2
(4800-19200bps)

Baud rate can be changed by upper computer setting, it can work without reboot after change, baud rate save upper computer setting after power down.

Baud rate support 4800,9600,19200. integer value assigned baud rate is as follows:

Input 0 1 2

Baud rate 4800 bps 9600 bps 19200 bps

Send command: 01 06 20 03 00 02 F3 CB

Response: 01 06 20 03 00 02 F3 CB

Note: The baud rate was changed to 19200 bps and saved by power down.

User Guide

(3)Function registers:

a. Measurement temperature:

Address 0x0100 (40101)

Number of registers
1

Function code 0x03

Read example value: 19.2°C

Send: 01 03 01 00 00 01 85 F6

Response: 01 03 02 00 C0 B8 14

Return hexadecimal unsigned integer data, temperature value = Integer/10, keep

1 decimal place.

Address

Number of

Function

registers

code

0x0002

0x03

Read example value: Temperature 18.5°C

Request frame: 01 03 00 02 00 02 65 CB

Answer frame: 01 03 04 00 B9 00 01 EA 16

Example:

Temperature 00 B9 00 01

Temperature value 00 B9 indicates a hexadecimal reading temperature value, 00
01 indicates a temperature value with 1 decimal place, which is converted to a decimal value of 18.5.

b. Measurement turbidity:
Address
0x0101 (0x40102)

Number of registers
1

Function code 0x03

User Guide

Read example value: 98.5NTU Send: 01 03 01 01 00 01 D4 36 Response: 01 03 02 03 D9 79 2E Return hexadecimal unsigned integer data, turbidity value = Integer/10, retain 1 decimal place.

Address 0x0000

Number of registers
2

Function code 0x03

Read example value: turbidity value 86.6 NTU

Request frame: 01 03 00 00 00 02 C4 0B

Answer frame: 01 03 04 03 62 00 01 9A 69

Example:

Turbidity 03 62 00 01

Turbidity value 03 62 indicates a hexadecimal reading turbidity value, and 00 01 indicates a turbidity value with 1 decimal place, which converts to a decimal value of 86.6.

c. Continuous reading temperature and turbidity:

Address 0x0100(40101)

Number of registers
2

Function code 0x03

Read sample values: temperature 19.2°C and turbidity value 98.5 NTU
Send instruction: 01 03 01 00 00 02 C5 F7
Response: 01 03 04 00 C0 03 D9 3B 65
The register returns hexadecimal unsigned integer data, temperature value = Integer/10, with 1 decimal place.

User Guide
Register returns hexadecimal unsigned integer data, turbidity value = Integer/10,keep 1 decimal place.

Address 0x0000

Number of registers
4

Function code 0x03

Read sample value: temperature 18.5 and turbidity value 86.6NTU

Request frame: 01 03 00 00 00 04 44 09

Answer frame: 01 03 08 03 62 00 01 00 B9 00 01 BB E1

Example:

Turbidity 03 62 00 01

Temperature 00 B9 00 01

Turbidity value 03 62 indicates a hexadecimal reading turbidity value, and 00 01 indicates a turbidity value with 1 decimal place, which converts to a decimal value of 86.6.

Temperature value 00 B9 denotes the hexadecimal reading temperature value,
00 01 denotes the temperature value with 1 decimal point, converted to decimal value of 18.5.

d. Calibration

1) Temperature calibration:

Address 0x1000(41001)

Number of registers
1

Function code 0x06

Calibration example: Calibration at temperature 25.8°C

Send command: 01 06 10 00 01 02 0D 5B

Response: 01 06 10 00 01 02 0D 5B

The sensor needs to be calibrated in a constant temperature environment after the temperature indication no longer fluctuates.

User Guide

2) Turbidity zero calibration

Address 0x1001(41002)

Number of registers
1

Function code 0x06

Calibration example: Calibration in distilled water or deionized water with zero turbidity

Send command: 01 06 10 01 00 00 DC CA

Response: 01 06 10 01 00 00 DC CA

3) Turbidity slope calibration

Address 0x1003(41004)

Number of registers
1

Function code 0x06

Calibration example: Calibration in 1000 NTU turbidity solution

Send command: 01 06 10 03 27 10 67 36

Response: 01 06 60 03 27 10 67 36

5.4 Error response

If the sensor fails to execute the host computer command correctly, a message of the following format is returned:

Define

Address

Function code

CODE

CRC

Data ADDR COM+80H xx

CRC 16

Byte

(1) CODE: 01 - Function Code Error 03 - Data error
(2)COM: received function code

User Guide
6. Maintenance
6.1 Use and Maintenance
1. Cleanse: Use tap water to clean the external surface of the sensor, if there is still debris residue, wipe with a moist soft cloth, for some stubborn dirt, you can add some household detergent solution in tap water to clean.
2. Check the cable of the sensor: The cable should not be taut during normal operation, otherwise it will be easy to make the internal wires of the cable break, so that the sensor can not work properly.
3. Check for dirt: Check whether the measuring window of the sensor is dirty and whether the cleaning brush is normal.
4. Avoid impact: The sensor contains sensitive optical and electronic parts. Make sure that the sensor is not subjected to severe mechanical impact. There are no parts inside the sensor that require maintenance by the user.
7. Calibration
1. Zero Calibration Use a larger beaker to measure the appropriate amount of zero turbidity solution, the sensor is placed vertically in the solution, the sensor measurement end from the bottom of the beaker at least 10cm, 3 ~ 5 minutes to be stable values for zero calibration.
2. Slope Calibration Place the measuring end of the sensor in the standard solution, the measuring end of the sensor from the bottom of the beaker at least 10cm, 3 ~ 5 minutes to be stabilized for slope calibration.

User Guide

8. Document Version

Version V1.0.0

Date 1/21/2025

Description First edition

Editor Zeke CAI

References

首页 - 深圳矽递科技股份有限公司 SENSECAP 多合一气象环境传感器微气象仪

WPS 文字 macOS 版本15.2（版号24C101） Quartz PDFContext

seeed

[PDF] Industrial Turbidity Sensor User Manual - Seeed Studio files.seeedstudio.com âº products âº SenseCAP

Industrial Turbidity Sensor User Manual

References

[PDF] Industrial Turbidity Sensor User Manual - Seeed Studio files.seeedstudio.com âº products âº SenseCAP