Proteus Multi-Parameter Water Quality Sensors
Features
- Built-in wiper cleans optical sensors prior to each measurement
- Optional internal battery pack for standalone deployments
- SDI-12 and RS-485 Modbus output for integration with data loggers & PLC's
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Proteus is a unique, scientifically-proven multi-parameter probe platform that uses both fluorescence and patented algorithms to monitor biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), dissolved organic carbon (DOC) and total coliforms, fecal coliforms and E. coli coliforms in real-time. The instrument is designed for use in drinking water, wastewater, industrial, process, recreational swimming areas, aquaculture and food & beverage applications:
- Biochemical Oxygen Demand (BOD): BOD is a measure of the amount of oxygen that is used by bacteria and other microorganisms during the aerobic decomposition of organic matter.
- Chemical Oxygen Demand (COD): COD is a measure of the amount of oxygen that is required to dissolve both organic and inorganic matter with the water.
- Total Organic Carbon (TOC): TOC is a measure of the total amount of carbon present in organic compounds in a water source.
- Dissolved Organic Carbon (DOC): A subset of TOC, dissolved organic carbon is the fraction of TOC which can pass through a 0.22 - 0.7µm pore size filter.
- Total Coliforms, Fecal Coliforms and E. coli Coliforms: Coliforms are rod-shaped, gram negative bacteria. Total coliforms (TC) include all coliform bacteria that are present within the water source.
Sensor Options
Proteus can be fitted with up to 12 different sensors to output over 30 parameters on a single instrument. Sensor options include temperature, conductivity, pH, ORP, dissolved oxygen, turbidity, CDOM, tryptophan, chlorophyll, blue-green algae, depth, and more. A central wiper on the turbidity sensor cleans the optical sensors prior to each measurement, reducing the maintenance requirements when continuously deployed. The probe can also be outfitted with a cabled Bluetooth battery pack for spot sampling with any Android/iOS device.
Includes
Included with the purchase is the Proteus base unit with temperature sensor, calibration cup, sensor guard, serial communication cable, serial to USB adapter, digital manual and Proteus Software Manager. Both SDI-12 and RS-485 Modbus RTU are standard outputs for interfacing with environmental data loggers and PLC's. Pair the multi-parameter probe with the NexSens X-Series data loggers and CB-Series buoys for cloud-based data in remote locations via WQData Data LIVE and cellular or satellite telemetry.
BOD Parameter Specifications | |
Units | BOD mg/l |
Range** | 0-2000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
Coliform Counts Parameter Specifications | |
Units | CFU/100 m |
Range** | >1 count/100ml |
Resolution | 1 count/100ml |
Accuracy | ±10 Coliforms* |
Comments | Local site calibration can improve accuracy. Can be used for fecal coliforms, E. coli or total coliforms |
COD Parameter Specifications | |
Units | COD mg/l |
Range** | 0-4000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
DOC Parameter Specifications | |
Units | DOC mg/l |
Range** | 0 - 3000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
TOC Parameter Specifications | |
Units | TOC mg/l |
Range** | 0 - 3000 mg/l |
Resolution | 0.01 mg/l |
Accuracy | ±5 % of reading* |
Comments | Local site calibration can improve accuracy |
General Specifications - Proteus 35 | |
Diameter | 89 mm (3.5") |
Length - w/o Battery Pack | 483 mm (19") |
Weight - with IBP | 2.85 kg (6.28 lbs) |
Number of Sensors | Up to 11 |
Optional Battery Pack | 8 “C” cells |
General Specifications - All Versions | |
Internal Power Battery Life | 1 to 24 month depending on sensors / logging rates |
External Power | 5-15 vdc |
Operating Temperature | 0 to 50 °C non-freezing |
Calibrated Range | 0 to 30 °C non-freezing |
Depth Rating | 200 m |
Communications | USB, RS232, Modbus RS485, SDI-12 |
Sample Rate | 1 Hz |
Data Memory | >1,000,000 logged readings |
Logging Rates | 1 second to 1 day |
Warranty | 2 years (All sensors excluding ISE’s) |
*providing adequate field calibration
**customized ranges are available
- (1) Proteus 35 base unit with temperature sensor
- (1) Calibration cup
- (1) Sensor guard
- (1) Serial communication cable
- (1) Serial to USB adapter
- (1) Digital manual
- (1) Proteus Software Manager
- Proteus Multi-Parameter Water Quality Sensor Specifications
- Proteus Multi-Parameter Water Quality Sensor Brochure
- Proteus Multi-Parameter Water Quality Sensor Manual
- Proteus Multi-Parameter Water Quality Sensor SDI-12/Modbus Manual
- Proteus Multi-Parameter Water Quality Sensor Power Options
- Proteus Multi-Parameter Water Quality Sensor Tech Note
In The News
Climate Change and Microplastics: Monitoring Lake Champlain
Most people go to Lake Champlain for its exceptional views and thrilling boating, but it’s also home to a wide variety of interesting aquatic research projects. From studying microplastics to thermal dynamics of the lake, Timothy Mihuc, director of the Lake Champlain Research Institute (LCRI) at the State University of New York at Plattsburgh (SUNY Plattsburgh), has spent his career studying aquatic ecosystems. 
 
 As an aquatic biologist, he’s the main investigator on Lake Champlain’s research studies while also managing their grants, employees, and their hands-on buoy work. 
 
 Over the years, LCRI has received a number of environmental grants that aid in its monitoring research.
Read MoreCurrent Monitoring after the Francis Scott Key Bridge Collapse
On March 26th, according to The Baltimore Sun , a 984-foot, 112,000-ton Dali lost propulsion and collided with a support column of the Francis Scott Key Bridge, collapsing the structure. Soon after the event, search and rescue, salvage crews, and other emergency responders were mobilized after the collision. 
 
As salvage efforts progressed in early April, NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) responded to a request for real-time tidal currents data and deployed a current monitoring buoy—CURBY (Currents Real-time BuoY)—into the Patapsco River north of the Francis Scott Key Bridge.
Read MoreSoundscapes of the Solar Eclipse: Citizen Science Supporting National Research
On April 8, 2024, millions of people around the world had their eyes glued to the sky to witness a historic cosmic event. The total solar eclipse captured the headlines and the minds of many who became eager to gaze at the heavens as the sky went dark for a few minutes. However, not everyone used their sense of sight during the eclipse, some were listening to the sounds of the natural world around them as the light faded from above. 
 
 The Eclipse Soundscape Project is a NASA-funded citizen science project that focuses on studying how the annular solar eclipse on October 14, 2023, and the April 8, 2024 total solar eclipse impacted life on Earth. 
 
 The project revisits an initiative from the 1930s that showed animals and insects are affected by solar eclipses.
Read More