Continuous Emission Monitoring System

Continuous Emission Monitoring System (CEMS)

Continuous Air Quality Monitoring Station (CAQMS) is cost-effective solutions for compliance monitoring. CAQMS has been demonstrated to be accurate and highly reliable when compared to Continuous Emissions Monitoring Systems (CEMS) in independent field tests conducted in accordance with U.S. EPA tests methods and procedures. PEMS is designed to provide advanced and superior emissions monitoring capability and is guaranteed to pass certification testing. PEMS is an alternative in CEMS. Since 2009, ASMA® has successfully completed and obtained approval for more than 40 installations in different industries. Together with our partner, CMC Solutions we continue to promote this most advanced emissions monitoring solutions available in the market today.


An award-winning, patented, multi-parameter, real-time sensor platform to accurately and reliably measure BOD, COD, TOC and Coliforms (total, E. coli or faecal) in permanent and temporary applications. The Proteus is the world’s first scientifically proven real-time sensor for measuring BOD that can measure a wide range of water quality, environmental and industrial applications. A multiprobe that measures your choice of parameter, all in one package, that can deliver data in the toughest field conditions. The Proteus has been designed for its ease of use, reliable data and economical operation.

Parameters include:

BOD, COD, TOC, DOC Optical Brighteners Ammonium
Dissolved Oxygen Nitrate EC / Salinity / TDS
Pressure ORP / REDOX Turbidity
Chloride Coliforms (faecal, E. coli, total) Crude Oils
pH Tryptophan CDOM
Temperature Refined Oils

A range of power options are available including internal lithium battery packs, ideal for unattended logging, or multiple external power options of battery, mains or solar panel.

Manufactured by : Proteus Instruments

Model : Proteus Multi-parameter Water Quality Sensor

Service offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance

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BOD Parameter Specifications
Units BOD mg/l
Range** 0-300 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 faecal coliforms, E. coli or total coliforms
COD Parameter Specifications
Units COD mg/l
Range** 0-600 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 - 400 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 - 500 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 4.1 kg (9.0 lbs)
Number of Sensors Up to 11
Optional Battery Pack 8 “C” cells
General Specifications - Proteus 40
Diameter 102 mm (4.00”)
Length - w/o Battery Pack 483 mm (19")
Weight - with IBP 4.5 kg (10.0 lbs)
Number of Sensors Up to 13
Optional Battery Pack 8 “C” cells
General Specifications - All Versions
Internal Power Battery Life 1 to 24 month depending on sensors / logging rates
Range** >1 count/100ml
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 as standard. Modbus RS485, SDI-12 and/or Bluetooth optional
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)


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