Overview
The DW-739 series are single parameter inline turbidity analyzers specifically designed as a 'Turn-Key' monitoring solution for clean water applications. This panel series offers accurate, real time measurement, display and data logging of Ultra-Low Turbidity. Utilizing proprietary Pyxis Lab® smart sensor technology coupled with the Pyxis touch screen display and data logging terminal. The DW-739 series is offered in a convenient and easy to integrate panel mounted format for rapid installation and simple maintenance.
Furthermore, the DW-739 series analyzer integrates the LT-739 ultra-low turbidity sensor installed in the FR-100 flow reservoir. The LT-739 sensor offers a unique flat surface distal end in a quartz glass plate. This allows for extended cleanliness, easy maintenance and prevention of air bubble interference. So, with a detection range of up to 40 NTU and an industry low resolution of 0.001 NTU, the LT-739 sensor is designed for optimal accuracy. As well as performance with a wide range of turbidity water samples from raw influent to treated effluent. The LT-739 uses 90º surface scatter configuration and Warm White Light (LED) or InfraRed (LED) and is EPA-180.1 and ISO-7027 compliant respectively.
The DW-739 analyzer requires a small installation footprint and offers simple operation and maintenance and is specifically designed for use in domestic and drinking water applications. The analyzer is also available with an optional Pyxis CloudLinkTM 4G remote gateway. Which can upload on-site analyzer data to a cloud server in real time. Allowing for additional sensor/device inputs for cloud access. See specifications for details.
The LT-739 (EPA) and LT-739B (ISO) ultra-low resolution turbidity sensors offer a detection light source. Using warm white LED in 90-degree surface scatter format in accordance with USEPA 180.1 standards or Infra-Red 860nm in accordance with ISO-7027.1 standards. Furthermore, the turbidity sensors are mounted in the unique Pyxis FR-100 flow reservoir enabling the highest resolution possible of 0.001NTU with solid stability. In addition, the LT-739 and LT-739B offers simple calibration via the Pyxis LT-SOLID-CAL Solid State Turbidity Calibration Kit (no Formazin required) or the Pyxis L-CAL Portable Turbidity Calibration Kit (uses 500mL Formazin per calibration).
The FR-100 Single-Sensor flow reservoir provides sample calming for dissipation of air bubbles. Settling of suspended solids, foam or other impurities common in drinking water influent. Therefore, his unique flow reservoir design results in the highest level of turbidity resolution on the market. Greatly extends the maintenance cycle of the sensor while providing a large buffer capacity to mitigate pressure fluctuations. The minimum inlet pressure of FR-100 flow reservoir is only 7.5 psi (0.05mpa) making it highly suitable for the end of pipe networks and secondary supply sampling.
Specifications
| Item | DW-739 | DW-739B | DW-739-G | DW-739B-G |
| Part Number | 42143 | 42144 | 42145 | 42146 |
| Turbidity Wavelength | Warm White LED | 860nm LED | Warm White LED | 860nm LED |
| Turbidity Dual Range | 0.001-10 / 10-40.00 NTU | 0.001-10 / 10-40.00 NTU | 0.001-10 / 10-40.00 NTU | 0.001-10 / 10-40.00 NTU |
| Turbidity Accuracy | ±0.005NTU or 2% <10NTU | ±0.005NTU or 2% <10NTU | ±0.005NTU or 2% <10NTU | ±0.005NTU or 2% <10NTU |
| Turbidity Repeatability | ±0.001NTU or 0.5% <10NTU | ±0.001NTU or 0.5% <10NTU | ±0.001NTU or 0.5% <10NTU | ±0.001NTU or 0.5% <10NTU |
| Minimum Resolution | 0.001NTU, 0.01ppm, 0.01pH | 0.001NTU, 0.01ppm, 0.01pH | 0.001NTU, 0.01ppm, 0.01pH | 0.001NTU, 0.01ppm, 0.01pH |
| Response Time | 4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH | 4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH | 4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH | 4s After Immersion – Turbidity, T95≤60s – Free Chlorine, T95≤5s – pH |
| Compliance | EPA-180.1/334.0 | ISO-7027/7393 | EPA-180.1/334.0 | ISO-7027/7393 |
| Measurement Interval | Continuous Measurement | Continuous Measurement | Continuous Measurement | Continuous Measurement |
| Display | 7in LCD Color Industrial Capacitive Touch Screen | 7in LCD Color Industrial Capacitive Touch Screen | 7in LCD Color Industrial Capacitive Touch Screen | 7in LCD Color Industrial Capacitive Touch Screen |
| Storage Capacity | Built-In 4GB of RAM for Storing up to 1m Data/Event Records | Built-In 4GB of RAM for Storing up to 1m Data/Event Records | Built-In 4GB of RAM for Storing up to 1m Data/Event Records | Built-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 | 96-260VAC / 50-60Hz; 10A Fuse; 200W | 96-260VAC / 50-60Hz; 10A Fuse; 200W |
| Output | (2) 4-20mA/RS-485 Modbus – RTU/Modbus TCP | (2) 4-20mA/RS-485 Modbus – RTU/Modbus TCP | (2) 4-20mA/RS-485 Modbus – RTU/Modbus TCP | (2) 4-20mA/RS-485 Modbus – RTU/Modbus TCP |
| Input | (2) 4-20mA/RS-485 Modbus – RTU | (2) 4-20mA/RS-485 Modbus – RTU | (2) 4-20mA/RS-485 Modbus – RTU | (2) 4-20mA/RS-485 Modbus – RTU |
| USB | (1) USB Host, For Data Downloading & Screen Upgrade | (1) USB Host, For Data Downloading & Screen Upgrade | (1) USB Host, For Data Downloading & Screen Upgrade | (1) USB Host, For Data Downloading & Screen Upgrade |
| Internet | RJ-45 Socket, Modbus-TCP | RJ-45 Socket, Modbus-TCP | RJ-45 Socket, Modbus-TCP | RJ-45 Socket, Modbus-TCP |
| Panel Operational Temperature | 40-113 °F (4-45 °C) | 40-113 °F (4-45 °C) | 40-113 °F (4-45 °C) | 40-113 °F (4-45 °C) |
| Storage Temperature | Instrument: -4-131 °F (-20-55 °C) / Sensors: 32-122 °F (0-50 °C) | Instrument: -4-131 °F (-20-55 °C) / Sensors: 32-122 °F (0-50 °C) | Instrument: -4-131 °F (-20-55 °C) / Sensors: 32-122 °F (0-50 °C) | Instrument: -4-131 °F (-20-55 °C) / Sensors: 32-122 °F (0-50 °C) |
| Sample Water Temperature | 40-104 °F (4-40 °C) | 40-104 °F (4-40 °C) | 40-104 °F (4-40 °C) | 40-104 °F (4-40 °C) |
| Sample Water Pressure | 7.25-30psi (0.05-0.2MPa) | 7.25-30psi (0.05-0.2MPa) | 7.25-30psi (0.05-0.2MPa) | 7.25-30psi (0.05-0.2MPa) |
| FR-100 Water Flow Rate | 200-400mL/minute | 200-400mL/minute | 200-400mL/minute | 200-400mL/minute |
| FR-100 Line Size | 1/4″ Inlet / 3/4″ Overflow / 20mm Outlet / 1/2″ Drain | 1/4″ Inlet / 3/4″ Overflow / 20mm Outlet / 1/2″ Drain | 1/4″ Inlet / 3/4″ Overflow / 20mm Outlet / 1/2″ Drain | 1/4″ Inlet / 3/4″ Overflow / 20mm Outlet / 1/2″ Drain |
| Rating | IP65 Panel Display / IP67 Sensors | IP65 Panel Display / IP67 Sensors | IP65 Panel Display / IP67 Sensors | IP65 Panel Display / IP67 Sensors |
| Regulation | CE / RoHS | CE / RoHS | CE / RoHS | CE / RoHS |
| Relative Humidity | 20-90% (No Condensation) | 20-90% (No Condensation) | 20-90% (No Condensation) | 20-90% (No Condensation) |
| Altitude | <6,561ft (<2,000m) | <6,561ft (<2,000m) | <6,561ft (<2,000m) | <6,561ft (<2,000m) |
| Panel Dimensions | 790Hx450Wx235D mm | 790Hx450Wx235D mm | 790Hx450Wx235D mm | 790Hx450Wx235D mm |
| Weight | 15kg | 15kg | 15kg | 15kg |
| 4G CloudLink | N/A | N/A | Included | Included |
Support
Videos
Related products
Panel Solutions
The ‘Turn-Key’ Monitoring Solution for Drinking Water. The DW-2100P series are multi-parameter inline water analyzers specifically designed as a ‘Turn-Key’ monitoring solution for clean water applications.
Panel Solutions
The Easy-To-Integrate Flow Control Module The Pyxis Lab® Nano-Flow Control Module is a stand-alone water flow measurement and control solution designed for use in critical cooling and process water sample flow applications.
Panel Solutions
Panelized Monitoring Solution for Data Center Cooling. The IK-1500 Series are pre-engineered, panelized monitoring solutions designed specifically for data center Coolant Distribution Units (CDUs).
Panel Solutions
Panelized Monitoring Solution for Data Center Cooling. The IK-1600 Series are pre-engineered, panelized monitoring solutions designed specifically for data center Coolant Distribution Units (CDUs).
