Proteus Multi-Parameter Water Quality Sensors

The Proteus is a multi-parameter sensor platform designed to complete accurate and reliable measurements of BOD, COD, TOC and Coliforms (total, E. coli or fecal) in temporary and permanent applications.

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
Your Price Call
Stock Check Availability  

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
Questions & Answers
How does Proteus technology differ from UV-Vis?
The only similarity between the two is that they both engage with the UV portion of the EM spectrum; however that is where the comparisons end. Where UV-Vis focuses on the absorption of UV and visible wavelengths, Proteus’ optical sensors utilize the intrinsic fluorescence of organic matter through fluorescence spectroscopy. Known substances, such as the amino acid Tryptophan, fluoresce at particular UV wavelengths when excited by UV light. This knowledge has been used to develop cutting edge sensors and algorithms to quantify TLF, CDOM, BOD, total coliforms and more; bringing the Proteus to the forefront of water quality technology.
Can I customize the Proteus with different configurations of sensors?
The Proteus can house up to 12 physical sensors on one probe, and these can be retrofitted so do not all need to be purchased at the time of the initial order. Some sensors such as fluorometers can be swapped out like for like, for example replacing Tryptophan with CDOM – this will still require recalibration and potentially changing of coefficients.
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
Proteus Multi-Parameter Water Quality Sensors
P35B-P-E
Proteus 35 base unit, includes temperature sensor
Request Quote
Check Availability  
Proteus Multi-Parameter Water Quality Sensors
P35B-P-B
Proteus 35 base unit, includes temperature sensor & internal battery pack
Request Quote
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
×
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Collecting Data at the Top of the World: How Scientists Retrieve Glacial Ice Cores

A helicopter touches down in the small town of Sicuani, Peru, at an elevation of 11,644 feet. Earlier that day, a boxcar brought fuel, drills, food, and other equipment for a glacial expedition. The year is 1979, and glaciologist Lonnie Thompson is preparing to lead a team to the Quelccaya ice cap in hopes of becoming the first scientists to drill an ice core sample from this glacier. The only problem? The glacier is located at 19,000 feet in one of the most remote areas of the world. The helicopter takes off from the town, but the thin atmosphere at that elevation does not allow it to safely touch down on the ice– due to the aircraft’s weight, and it becomes unstable when the air is less dense.

Read More

Spring 2024 Environmental Monitor Available Now

In the Spring 2024 edition of the Environmental Monitor, we showcase researchers from across the world and the importance of monitoring natural disasters and the various symptoms of climate emergencies. Tracking the impacts of wildfires in Canada to air pollution in New York , this latest edition showcases how the influence of climate change and natural disasters transfers across state and country lines. Researchers spent the year gathering data, predicting disasters, and monitoring as a means of managing and understanding natural disasters. Our writers sought out environmental professionals dedicated to protecting human health , minimizing the impacts of natural disasters and creating monitoring systems.

Read More

Combining Academia and Lake Associations: Monitoring Lake Lillinonah

Lake Lillinonah may be Connecticut's second-largest lake, but it holds a great deal of meaning for locals and researchers in the surrounding towns. The lake is so significant to the surrounding community that it is one of many lakes in the United States with a dedicated lake association advocating for the resource. Jen Klug, Professor of Biology in the College of Arts and Sciences at Fairfield University , started her career at Fairfield as a natural progression in her background as a classical aquatic ecologist and found herself working closely with Lake Lillinonah's Friends of the Lake (FOTL) when they reached out to collaborate on an algae presentation for a public forum back in 2006.

Read More