Multi-Parameter Inline Analyzers for Drinking Water

DW-2100P Series Multi-Parameter Inline Analyzers for Drinking Water

The DW-2100P Series are multi-parameter inline water analyzers designed as turnkey monitoring solutions for clean water applications such as drinking water networks, secondary supply, decorative pools, and swimming water.

They provide accurate, real-time measurement and data logging of ultra-low turbidity, free chlorine, pH, and temperature in a compact, easy-to-install, panel-mounted format with a touchscreen display and built-in data logger.

The system integrates two advanced Pyxis Lab® smart sensors:

  • The ST-765SS-FCL measures free chlorine, pH, and temperature with built-in pH and temperature compensation up to pH 9.0, delivering reliable oxidizer readings compliant with USEPA 334.0 — without membranes or extra reagents.

  • The LT-739 ultra-low turbidity sensor uses a flat quartz surface for easy cleaning, with a range up to 40 NTU and a resolution of 0.001 NTU, meeting EPA 180.1 and ISO 7027 standards.

The FR-200 Dual-Sensor Flow Reservoir helps reduce bubbles and solids for stable, high-resolution measurement and easy maintenance.

Key Features:

  • Highly accurate turbidity, chlorine, pH & temperature measurement
  • Self-cleaning flat electrodes reduce fouling
  • Simple back-panel design for quick installation
  • RS-485 Modbus, 4–20 mA, and TCP-IP connectivity
  • Factory-tested and calibrated for plug-and-play startup

Typical Applications:

  • Drinking & domestic water
  • Decorative & swimming water
  • Secondary supply
  • Food & beverage process water

Turnkey Monitoring for Drinking Water

DW-2100P Series: multi-parameter inline analyzers for simple, reliable clean water monitoring.

ItemDW-2100P-US DW-2100P-EU
Turbidity WavelengthWarm White LED860nm LED
Turbidity Dual Range0.001-10 / 10-40.00 NTU0.001-10 / 10-40.00 NTU
Turbidity Accuracy±0.005NTU or 2% <10NTU±0.005NTU or 2% <10NTU
Turbidity Repeatability±0.001NTU or 0.5% <10NTU±0.001NTU or 0.5% <10NTU
Free Chlorine MethodBare Gold Electrochemical MethodBare Gold Electrochemical Method
Free Chlorine Range0.01-5.00ppm as FCl20.01-5.00ppm as FCl2
pH MethodElectrochemical Method Electrochemical Method
pH Range0.01-14.00 pH0.01-14.00 pH
Measurement Accuracy0.001NTU or 1% Full Scale
±0.01ppm or 1% Full Scale with pH Compensation to 9.0

±0.01pH
0.001NTU or 1% Full Scale
±0.01ppm or 1% Full Scale with pH Compensation to 9.0

±0.01pH
Minimum Resolution0.001NTU, 0.01ppm, 0.01pH0.001NTU, 0.01ppm, 0.01pH
Response Time4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH
ComplianceEPA-180.1/334.0ISO-7027/7393
Measurement IntervalContinuous MeasurementContinuous Measurement
Display7in LCD Color Industrial Capacitive Touch Screen7in LCD Color Industrial Capacitive Touch Screen
Storage CapacityBuilt-In 4GB of RAM for Storing up to 1m Data/Event RecordsBuilt-In 4GB of RAM for Storing up to 1m Data/Event Records
Power Requirement 96-260VAC / 50-60Hz; 10A Fuse; 200W 96-260VAC / 50-60Hz; 10A Fuse; 200W
Output(3) 4-20mA/RS-485 Modbus – RTU/Modbus TCP(3) 4-20mA/RS-485 Modbus – RTU/Modbus TCP
Input(3) 4-20mA/RS-485 Modbus – RTU(3) 4-20mA/RS-485 Modbus – RTU
USB(1) USB Host, For Data Downloading & Screen Upgrade(1) USB Host, For Data Downloading & Screen Upgrade
InternetRJ-45 Socket, Modbus-TCP RJ-45 Socket, Modbus-TCP