From economical and simple to robust and modular 

Dissolved Oxygen measurements are critical to your success whether you're working in food and beverage, pharmaceuticals, energy and power, education, government, or water and wastewater management. 

Thermo Scientific Orion dissolved oxygen benchtop and portable meters help you meet regulatory standards, enable quality control protocols are met, achieve your safety goals, and accelerate your path from challenge to solution. Applications for dissolved oxygen measurement include processes where the amount of oxygen affects a reaction rate or process efficiency, or indicates an environmental condition. Some important applications include wastewater treatment, wine production, bio-reactions, and environmental water monitoring.

Thermo Scientific Orion DO instruments have the flexibility to use polargraphic and optical technology for DO measurement needs meeting regulatory requirements. Membrane oxygen electrodes are the most widely used and accepted method for real-time measurements of oxygen in water. Learn more about how Thermo Scientific instruments can help you meet your regulatory needs. 

Learn more about the regulatory requirements the benchtop and portable meters can assist with.

International standards for regulatory compliance requirements: 

Parameter

EPA

SM

ASTM

ISO

China MEP

USP

EP

AOAC

Other

pH

EPA 150.1 4500-H+(B) D1293 (A,B) 10523 GB/T 6920 <791> 2.2.3 973.41 FDA - 21 CFR 114.90

pH of Soil/Solid Waste

SW-846 9040C & 9045D   D4972 10390 GB/T15555     994.16 - 994.18 USDA NRCS

Conductivity

EPA 120.1; SW-846 9050A 2510 (B) D1125 (A) 7888 n/a <645> 2.2.38 973.40 PSS-78 (salinity)

Dissolved Oxygen

  4500-O (G) D888 (B, C) 17289; 5814 HJ506        

BOD

  5210 (B)   5815 HJ505     973.44  

Fluoride

SW-846 9214 4500-F (C ) D1179 (B) 10359 GB7484        

Ammonia

  4500-NH3 (D, E)  D1426 (B) 6778          

Nitrate

Orion 601; SW-846 9210A 4500-NO3 (D)              

Sulfide

SW-846 9215 4500-S2 (G) D4658            

Cyanide

SW-846 9213 4500-CN (F) D2036 (A)            

Chloride

SW-846 9212 4500-Cl (D) D512 (C)   GB11896        

Bromide

SW-846 9211                
  SM: Standard Methods for the Examination of Water and Wastewater. APHA, AWWA, WEF.
  ASTM: American Society for the Testing and Materials
  ISO: International Organization for Standardization
  USP: United States Pharmacopeia
  EP: European Pharmacopeia
  China MEP: China Ministry of Environmental Protection
  AOAC: Association of Official Analytical Chemists
  NRCS: Natural Resources Conservation Service
  PSS-78: Practical Salinity Scale of 1978
  FDA: U.S. Food and Drug Administration
  USDA: United Stated Department of Agriculture
Ease-of-use with Orion multiparameter meters

Focused on
Ease-of-Use

  • Large, easy-to-view displays help make recording measurements easier, faster and can help reduce documentation errors 
  • Onscreen instructions provide guidance on calibration and setup for more consistent operation with minimum training
Reliable electrochemistry measurements in the field

Provide Fast and Reliable Measurements

  • Selectable read modes and reading stability indicator capture and notify when measurements are ready 
  • Calibration information shown with measurements and selectable alarms help to ensure measurement integrity
Assist with compliance requirements

Assist with Compliance Requirements

  • Measure dissolved oxygen in percent saturation or mg/L with temperature
  • Perform DO calibrations using water-saturated air, air-saturated water, custom value (Winkler) or zero point
  • Select a meter with built-in barometer for automatic pressure compensated readings 

Dissolved Oxygen 
benchtop meters 

Dissolves oxygen testing benchtop meters

The accuracy and reliability of your measurements depends on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications and budget.

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Dissolved Oxygen 
portable meters

Portable meters for conductivity testing

Our portable meters are rugged and waterproof, and provide the dependable performance in the field without sacrificing accuracy and reliability.
 

 

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Electrodes 
and probes

Electrodes, probes, and sensors for use with conductivity meters

An extensive assortment of quality pH electrodes and sensors are available in a variety of body materials, body styles, fill types, reference styles, and junctions to meet the needs of your sample measurements.
 

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Standards
and solutions

Orion standards and solutions

We offer buffers, electrode storage solutions, electrode cleaning solutions, lab buffer kits, and electrode filling solutions for your measurement needs. Find the buffers and solutions that you need for your process.

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Choose the right pH meter for your lab

This interactive Orion pH Meter Selector Tool will help guide you to the ideal Thermo Scientific Orion benchtop or portable meter and accessories based on your requirements. 

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Support

Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.

Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.

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