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WoMaster WS102-Water Sensor_DataSheet

WoMaster WS102-Water Sensor_DataSheet
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WoMaster WS102-Water Sensor_DataSheet

Product catalog summary
Overview
This document outlines the technical specifications and operational guidelines for various water quality analysis sensors. These include sensors for Dissolved Oxygen, Residual Chloride Ion, Bromine Level, Electric Conductivity, Oxidation Reduction Potential, and pH, designed for water treatment, environmental monitoring, and industrial processes.
General Specifications
  • Power Supply: DC10-30V (Recommended 12V)
  • Protection Grade: IP68
  • Cable Length: 5 meters (customizable)
  • Output: RS485 (Modbus RTU) and 4~20mA
  • Temperature Range: 0~60°C (Electric Conductivity Sensor: 0~80°C)
Sensor-Specific Details
  • Dissolved Oxygen Sensor (WS102-DOS): Measures 0~20mg/L, resolution 0.01mg/L, accuracy ±0.2%FS.
  • Residual Chloride Ion Sensor (WS102-CL): Measures 0~20mg/L, resolution 0.01mg/L, accuracy ±2%FS.
  • Bromine Level Sensor (WS102-BRM): Measures 0.4~50000ppm, resolution 0.001ppm, accuracy ±1%.
  • Electric Conductivity Sensor (WS102-EC): Measures 1~2000μS/cm, resolution 1μS, accuracy ±1μS.
  • Oxidation Reduction Potential Sensor (WS102-ORP): Measures -2000~2000mV, resolution 0.01mV, accuracy ±0.01mV.
  • pH Sensor (WS102-PH): Measures 0~14pH, resolution 0.01pH, accuracy ±0.01pH.
Communication Protocol
  • Protocol: Modbus RTU
  • Data Bits: 8 bit
  • Baud Rate: 9600bps (default), adjustable
  • Error Detection: CRC
Installation and Wiring
  • Follow instructions carefully to avoid damage.
  • Ensure correct wiring before powering on.
  • RS485 lines must not contact power supply lines to prevent permanent damage.
Package Contents
  • Each sensor package includes the product unit and a Quick Installation Guide (QIG).
Additional Notes
  • Automatic temperature compensation is included in all sensors.
  • Each sensor has specific register addresses for measurements, temperature, current output, and warnings.
System Specifications
  • Power Supply: DC10-30V (Recommended 12V)
  • Pressure Range: 0~400KPa
  • Shell Material: PPS
  • Cable Length: 5m or customizable
  • Protection Grade: IP68
  • Weight: 0.5kg (without packaging)
Inspection Parameters
  • TDS Range: 0~5000mg/L
  • Resolution: 0.01mg/L
  • Accuracy: ± 0.01mg/L
  • Temperature Range: 0~60℃
  • Temperature Resolution: 0.1℃
  • Temperature Accuracy: ± 0.3℃
  • Temperature Compensation: Automatic
  • Output: RS485 (Modbus RTU); 4~20mA
Product Description

The WS102-TDS is a smart sensor for analyzing total dissolved solids in various water types, featuring built-in temperature detection and supporting RS485 (Modbus RTU) and 4~20mA signal output modes.

Model Description

WS102-TDS: Total Dissolved Solid Sensor with a range of 0~5000mg/L, temperature measuring range of 0~60°C, 5-meter cable, RS485 Modbus, and 10-30V power supply.

Package List
  • 1 x Product Unit
  • 1 x Quick Installation Guide (QIG)
Electrode Wiring Instructions
  • Follow instructions carefully to avoid product damage.
  • Ensure all wiring is correct before powering on.
  • RS485A and RS485B lines must not contact the power supply line to prevent permanent damage.
Address Description
  • Temperature: Register Addr. 0x 00 04, PLC Addr. 40005, Data Type: Float, Length: 2, R/W: R
  • TDS: Register Addr. 0x 00 06, PLC Addr. 40006, Data Type: Float, Length: 2, R/W: R
  • Current Output: Register Addr. 0x 00 20, PLC Addr. 40033, Data Type: Float, Length: 2, R/W: R
  • Baud Rate: Register Addr. 0x 00 12, PLC Addr. 40019, Data Type: Signed, Length: 1, R/W: W
  • Slave ID: Register Addr. 0x 00 14, PLC Addr. 40021, Data Type: Signed, Length: 1, R/W: W
  • Restore Factory: Register Addr. 0x 00 64, PLC Addr. 40101, Data Type: Signed, Length: 1, R/W: W
Additional Sensor: Liquid Level Sensor WS101-LL-10M
  • Measurement Range: 0-300 meters (optional)
  • Measure Accuracy: 0.2%FS, 0.5%FS
  • Output Signal: RS485 2-wire Modbus
  • Temperature Drift: 0.03%FS/℃
  • Power Supply: 12-36VDC
  • Power Consumption: 0.48W
  • Medium Temperature: -10~50℃
  • Protection Level: IP68
  • Current Load Capacity: ≤500Ω
  • Voltage Output Resistance: ≤510Ω
  • Measurement: Water, oil, etc.
  • Zero Drift: ±0.02%FS/°C
  • Thermal Sensitivity Shift: ±0.02%FS/°C
  • Long-term Stability (1 Year): ±0.1%FS
  • Frequency Response (-3dB): 3.2kHz
  • Compensated Temperature: -20~+85°C
  • Medium Temperature: -10~+85°C
  • Overload Pressure: 200% FS
  • Testing Range (mH2O): 0.5, 1, 2.5, 5, 10, 20, 50, 100, 200, 300, 400, 500, 600
  • Features: Excellent resistance against impact, overload, shock, and erosion; efficient lightning protection; strong anti-RFI & EMI protection; advanced digital temperature compensation; wide working temperature scope; high sensitivity, accuracy, frequency response, and long-term stability.
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Catalog excerpts

WoMaster WS102-Water Sensor_DataSheet-1

Water Quality Analysis Dissolved Oxygen Sensor Water Quality Analysis Dissolved Oxygen Sensor WS102-DOS WS102-DOS is a smart water quality analysis Dissolved Oxygen Sensor, which can be used in tap water, sewage treatment, wastewater treatment, aquaculture and environmental monitoring, etc. At the same time built-in temperature detection, measuring range 0 ~ 60 ℃. Signal output mode supports RS485(Modbus RTU) and 4~20mA. System Parameter Power supply Pressure range Shell material Cable length Protection grade Inspection Parameter Measuring Range Temperature range Temperature compensation Communication Protocol Basic Parameter Protocol Data bits

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WoMaster WS102-Water Sensor_DataSheet-2

Error Detecting Code Baud Rate Address Description Name Register Address Data Type Floating point Storage location for measured value Floating point Storage location for measured temperature Current output Floating point Output current based on DO measurements 00: Normal 01: Measurement exceeds the upper limit 02: Measurement exceeds the lower limit 03: Temperature exceeds the upper limit 04: Temperature exceeds the lower limit Device address Band Rate Restore factory ✓ Electrode wiring • Please follow the instructions carefully , the wrong wiring will damage the product completely. • Please...

 Open the catalog to page 2
WoMaster WS102-Water Sensor_DataSheet-3

Water Quality Analysis Residual Chloride Ion Sensor Water Quality Analysis Residual Chloride Ion (CL-) Sensor WS102-CL WS102-CL is a smart water quality analysis Residual Chloride Ion (CL-) Sensor, which can be used in drinking water, industrial process water disinfection process, hypochlorous acid (HOCL), online chlorine concentration monitoring, reverse osmosis and other membrane treatment processes Free chlorine monitoring. At the same time built-in temperature detection, measuring range 0 ~ 60 ℃. Signal output mode supports RS485(Modbus RTU) and 4~20mA. System Parameter Power supply Pressure...

 Open the catalog to page 3
WoMaster WS102-Water Sensor_DataSheet-4

Error Detecting Code Baud Rate Address Description Name Register Address Data Type Floating point Storage location for measured value Floating point Storage location for measured temperature Current output Floating point Output current based on FCL measurements 00: Normal 01: Measurement exceeds the upper limit 02: Measurement exceeds the lower limit 03: Temperature exceeds the upper limit 04: Temperature exceeds the lower limit Device address Band Rate Restore factory ✓ Electrode wiring • Please follow the instructions carefully , the wrong wiring will damage the product completely. • Please...

 Open the catalog to page 4
WoMaster WS102-Water Sensor_DataSheet-5

Water Quality Analysis Bromine Level Sensor Water Quality Analysis Bromine Level Sensor WS102-BRM WS102-BRM is a smart water quality Bromine Level Sensor, which can be used in industries such as industry, environmental protection, education, agricultural IoT. At the same time built-in temperature detection, measuring range 0 ~ 60 ℃. Signal output mode supports RS485(Modbus RTU) and 4~20mA. System Parameter Power supply Pressure range Shell material Cable length Protection grade Inspection Parameter Measuring Range Temperature range Temperature compensation Communication Protocol Basic Parameter...

 Open the catalog to page 5
WoMaster WS102-Water Sensor_DataSheet-6

Error Detecting Code Baud Rate Address Description Name Register Address Data Type Floating point Storage location for measured value Floating point Storage location for measured temperature Current output Floating point Output current based on ION/mV measurements 00: Normal 01: Measurement exceeds the upper limit 02: Measurement exceeds the lower limit 03: Temperature exceeds the upper limit 04: Temperature exceeds the lower limit Device address Band Rate Restore factory ✓ Electrode wiring • Please follow the instructions carefully , the wrong wiring will damage the product completely. • Please...

 Open the catalog to page 6
WoMaster WS102-Water Sensor_DataSheet-7

Water Quality Analysis Sensor Water Electric Conductivity Sensor WS102-EC WS102-EC is a smart water quality analysis sensor for Electric Conductive, which can be used to detect and distinguish pure water, mountain spring water, mineralized water, purified water, tap water, sewage, etc. At the same time built-in temperature detection, measuring range 0 ~ 80 ℃. Signal output mode supports RS485 (Modbus RTU) and 4~20mA. The Conductivity Electrode also supports M39x1.5 and G3/4 thread gauge for different installation. System Parameter Power supply Pressure range Shell material Cable length Protection...

 Open the catalog to page 7
WoMaster WS102-Water Sensor_DataSheet-8

Installation WS102-EC-G: NPT 3/4 Thread Gauge WS102-EC-M: M39x1.5 Thread Gauge Thread Gauge Data Type Conductivity Value Multiply by 1000 ( Read value / 1000 = uS/cm) Resistivity value Conductivity Constant Compensation Coefficient Manual compensation temperature Temperature Offset Baud Rate Slave Address Filtered Seconds Electrode Sensitivity Compensation mode Model Compensation Type Firmware version 4-20mA High Point Value High Range Resistivity Acquisition Cycle Operating mode Modify Baud Rate Modify Slave Address Modify Filter Second Adjust Float Order Modify Temperature Compensation Type...

 Open the catalog to page 8
WoMaster WS102-Water Sensor_DataSheet-9

✓ Electrode wiring • Please follow the instructions carefully , the wrong wiring will damage the product completely. • Please carefully check all the wiring in the system and confirm that the wiring is complete right before switch on the power. • Note: RS485A line and RS485B line are strictly forbidden to contact with the power supply line, otherwise the communication of the electrode will be permanently damaged. Electrode Cable Outlet ✓ Dimension & Thread Gauge Description E.C. Water Sensor, 0~2000uS/cm,0~80C , 5M Cable, RS-485, 4-20mA,10-30V,NPT3/4 E.C. Water Sensor, 0~2000uS/cm,0~80C , 5M...

 Open the catalog to page 9
WoMaster WS102-Water Sensor_DataSheet-10

Water Quality Oxidation Reduction Potential Sensor Water Quality Analysis Oxidation Reduction Potential Sensor WS102-ORP WS102-ORP is a smart water quality analysis Oxidation Reduction Potential Sensor, which can be used in general water treatment, sewage treatment, aquaculture, surface water monitoring, environmental protection engineering, cooling tower circulating water, beverage and food, industrial sewage discharge monitoring, etc. At the same time built-in temperature detection, measuring range 0 ~ 60 ℃. Signal output mode supports RS485(Modbus RTU) and 4~20mA. System Parameter Power supply...

 Open the catalog to page 10

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