PRE2131-C Online Multi-parameter Water Quality Analyzer

PRE2131-C Online Multi-parameter Water Quality Analyzer

The PRE2131-C Online Multi-parameter Water Quality Analyzer is a cutting-edge instrument designed to elevate the standard of smart water quality monitoring. Leveraging extensive expertise in design, development, and manufacturing, this advanced analyzer is capable of monitoring a wide range of water quality parameters, including pH, dissolved oxygen, conductivity, salinity, turbidity, total suspended solids (TSS), and chemical oxygen demand (COD). It is widely applicable in various industries such as aquaculture, tap water quality monitoring, surface water quality monitoring, and marine environment monitoring

Comprehensive Overview of the PRE2131-C Online Multi-parameter Water Quality Analyzeryzer

Multi-parameter Water Quality Analyzer Product Introduction

The PRE2131-C Online Multi-parameter Water Quality Analyzer is a cutting-edge instrument designed to elevate the standard of smart water quality monitoring. Leveraging extensive expertise in design, development, and manufacturing, this advanced analyzer is capable of monitoring a wide range of water quality parameters, including pH, dissolved oxygen, conductivity, salinity, turbidity, total suspended solids (TSS), and chemical oxygen demand (COD). It is widely applicable in various industries such as aquaculture, tap water quality monitoring, surface water quality monitoring, and marine environment monitoring.

Great Multi-parameter Water Quality Analyzer Features

  • Digital and Four-channel Analog Isolated Output: Provides RS485 communication interface with standard MODBUS protocol and four-channel analog signal outputs, ensuring robust anti-interference capabilities.
  • Four-channel Relay Control: Offers four-channel relay control with customizable control methods according to user needs.
  • Easy Maintenance: Features a customizable language and menu operation interface for user convenience.
  • Waterproof and Dustproof Design: IP68-rated protection, suitable for outdoor use.
  • Touch Screen LCD Display: 7-inch touch screen display, user-friendly operation, and the ability to display multiple parameters simultaneously with a visually appealing interface.
  • All Digital Communication: Ensures efficient data transmission between sensors and the controller.
  • Expandable Measurement Parameters: Can connect up to 199 digital water quality sensors and measure non-water quality parameters (e.g., pressure, liquid level, flow) with 485 communication protocol support.
  • USB Interface: Allows for program upgrades via USB.
  • Error Diagnosis: Monitors and warns users of signal interruptions with self-diagnostic capabilities.
  • Data Preservation: Features power-off protection and automatic recovery, ensuring set parameters are not lost during power outages.
  • Multi-language: Interface language can be customized, such as English, Spanish, Portuguese, Russian, Thai, Turkish, etc.
  • System Authorization: Password-protected with authorization level recognition.
  • Overvoltage and Overload Protection: Includes a protection fuse against supply voltage fluctuations

Multi-parameter Water Quality Analyzer Technical Specifications

  1. Power Supply

    • Voltage: 50-60 Hz, AC220V
    • Power Consumption: <20W

  2. Operating and Storage Conditions

    • Temperature: 0~60℃
    • Humidity: <95%RH, non-condensing

  3. Analog Output

    • Four-channel 4~20mA analog output
    • Output parameters can be customized based on customer needs

  4. Digital Output Interface

    • One-way RS485 digital output interface
    • Supports MODBUS RTU protocol communication
    • Optional external wireless transmission module for periodic reporting via SMS

  5. Parameter Configuration

    • Default: 8 parameters
    • Expandable if additional parameters are needed

  6. User Interface

    • Graphical monitoring for ease of operation

  7. Alarm System

    • High/Low limit alarm relay output
    • Customizable alarm sources

  8. Cleaning Function

    • Customizable cleaning settings
    • Adjustable cleaning time and frequency

Multi-parameter Water Quality Analyzer Main Measurement Parameters

ParameterDescription
Temperature

Temperature Measurement Principle: platinum resistance temperature sensor.
Measurement Temperature range: -10 ~ 80 ℃
Accuracy: ± 0.2 ℃;   

Material: IP68.

pH / ORPTest Principle: glass electrode method;
Measuring Range: 0-14 pH / -999~999mV;
Accuracy: 0.1 pH / ±20mV;                                                                        Material: IP68;
Output: RS485, MODBUS protocol;
Power Requirements: DC 5~12V, current<50mA;
Pressure: 0-10 bar;                                                                                      Operating Temp. 0-60℃.
Dissolved Oxygen

Test Principle: fluorescence, optical;
Measuring Range: 0~20mg/L or 0~200% saturation;
Accuracy: 1%; 

Material: IP68;
Auto Temp. Compensation: 0 ~ 60℃;
Response Time: 10 seconds;
Output: RS485, MODBUS protocol;
Power Requirements: DC 6~12V, current<50mA;
Pressure: 0-5 bar;                                                     

Operating Temp.: 0-60℃.

Conductivity

Test Principle: four-electrode type, induction;
Measuring Range: 1 uS/cm to 2000 mS/cm;
Accuracy: 1 % ;
Response Time: 10 seconds;
Output: RS485, MODBUS protocol;
Power Requirements: DC 5~12V +/-5%, current <50mA;
Pressure: 0-5 bar;

Operating Temp.: 0-60℃.

TurbidityTest Principle: 90° scattering method;
Measuring Range:1.0-3000.0 NTU;
Resolution: 0.1NTU or 1.0NTU（determined by range）
Accuracy: ±2%FS
Output: RS485, MODBUS protocol;
Power Requirements: 12V/24V DC.
Total Suspended Solids

Test Principle: double beam scattering method;
Measuring Range: 1.0-2500 mg/L (can be shown as NTU and FNU);
Resolution：1 mg/L or 0.01 g/L（determined by range）
Accuracy：±2%FS
Output: RS485, MODBUS protocol;
Power Requirements: 12V/24V DC;                     

Pressure: 0-5 bar;

Operating Temp.: 0-60℃;                                       

Self-cleaning.

COD

Test Principle: UV254 absorption method (reference measurement 550nm);
Optical Path: 1mm;
Measuring Range: 0~1500 mg/L;                         

Material: IP68;
Resolution: 0.01mg/L COD ;
Response Time: 10 seconds/Repeability: 3%;
Output: RS485, MODBUS protocol;
Power Requirements: DC 12V +/-5%, current <50mA;

Pressure: 0-5 bar; 

Operating Temp.: 0-60℃.