Optical Dissolved Oxygen (DO) Meter

Sper Scientific Optical Dissolved Oxygen (DO) Meter: Precision and Simplicity for Critical Measurements

The Sper Scientific Optical Dissolved Oxygen (DO) Meter redefines dissolved oxygen measurement, offering an unparalleled blend of accuracy, robustness, and remarkably low maintenance. Engineered for professionals across diverse fields, this meter eliminates the common complexities associated with traditional DO probes, delivering reliable data when and where you need it most.

Unmatched Performance and Ease of Use:

At the heart of its innovation, the Optical DO Meter utilizes advanced optical technology. Unlike electrochemical sensors, it requires no polarization time upon startup, meaning you can take instant, accurate readings without waiting. Furthermore, the optical sensor design drastically reduces maintenance – no membranes to replace, no electrolyte solutions to refill, making it ideal for continuous or frequent monitoring in demanding environments. This significantly cuts down on operational costs and technician time.

Key Advantages:

• Exceptional Accuracy: Experience precise measurements even in critical low oxygen ranges. The optical method is inherently stable and less susceptible to interference, ensuring trustworthy data.
• Resistant to Interference: Unaffected by acid gases (e.g., H2S, CO2) or other common chemical interferences that can compromise electrochemical probes, guaranteeing accurate readings in complex matrices.
• Dual Display Clarity: A large, easy-to-read LCD simultaneously presents both dissolved oxygen levels and temperature. Users can effortlessly switch between % saturation and mg/L (ppm) units for DO, adapting to specific reporting requirements.
• Advanced Compensation:
  • Automatic Temperature Compensation (°C/°F): Built-in compensation ensures that temperature fluctuations do not skew your DO readings, a critical factor for accuracy in varying conditions.
  • Manual Salinity Compensation: Essential for accurate measurements in brackish or saltwater environments, allowing users to input salinity values for precise correction.
  • Manual Pressure Compensation: Accounts for changes in atmospheric pressure, crucial for accurate readings at different altitudes or under varying weather conditions.
• Reliable Calibration: Supports 2-point DO calibration, providing confidence in the meter's precision and ensuring that your data meets the highest standards.

Designed for Durability and Portability:

Constructed to withstand the rigors of field use, this robust meter comes with everything needed for immediate deployment, including an optical DO probe, batteries, and a hard carry case. Its ergonomic design ensures comfortable handling for extended periods.

Versatile Applications Across Industries:

The Sper Scientific Optical DO Meter's precision and low maintenance design make it an indispensable tool across a wide spectrum of professional and industrial applications:

• Aquaculture: Crucial for maintaining optimal dissolved oxygen levels in fish farms, hatcheries, and aquariums. Proper DO ensures healthy aquatic life, prevents disease, and maximizes growth and feed efficiency, directly impacting productivity and profitability.
• Environmental Monitoring: Essential for assessing the health of natural water bodies like rivers, lakes, oceans, and estuaries. Monitoring DO helps identify pollution, track seasonal changes, and evaluate the overall ecological status of aquatic ecosystems.
• Wastewater Treatment: Vital for optimizing aerobic processes in treatment plants. Accurate DO monitoring helps control aeration, ensuring efficient breakdown of organic waste, reducing energy consumption, and meeting discharge regulations.
• Pharmaceuticals & Biotechnology: In bioreactors and fermentation processes, precise DO control is paramount for cell culture growth, microbial activity, and product yield. Consistent DO levels are critical for research, development, and manufacturing of biologics and other pharmaceutical products.
• Food and Beverage (Especially Brewing & Fermentation): Key for quality control in beverage production. In brewing, controlled oxygen levels are critical during mashing and fermentation to prevent off-flavors and ensure product consistency and shelf-life. Similarly, for other fermented foods and beverages, DO influences taste, texture, and stability.

Technical Specifications:

• DO Measuring Range (Saturation): 0.0% ~ 200.0%
• DO Accuracy (% Scale): ±3% of Full Scale
• DO Resolution (% Scale): 0.1%
• DO Measuring Range (Concentration): 0.0 mg/L ~ 20.0 mg/L
• DO Accuracy (Concentration):
  • <5 mg/L: ±0.3 mg/L
  • 5 ~ 20 mg/L: ±0.4 mg/L
• DO Resolution (Concentration): 0.1 mg/L
• Temperature Measuring Range: 0 ~ 40.0°C (32 ~ 104°F)
• Temperature Accuracy: ±0.5°C (±0.9°F)
• Temperature Resolution: 0.1°C
• Auto Temp. Compensation: 0.0 ~ 40.0°C (32 ~ 104°F)
• Manual Compensation: Salinity and Pressure
• Salinity Adjustable Range: 0.0 ~ 55.0 ppt
• Salinity Resolution: 0.1 ppt
• Barometric Pressure (Manual): 50.0 ~ 115.0 Kpa
• Barometric Pressure Resolution: 0.1 Kpa
• DO Calibration Points: 0.0% and 100%
• LCD Size: 54 (L) x 32.5 (W) mm
• Operating Temperature: 0 ~ 50°C
• Operating RH%: Humidity < 85%
• Storage Temperature: 0 ~ 50°C
• Storage RH%: Humidity < 80%
• Sensor Life Time: >1 year (with proper maintenance)
• Meter Size: 169 (L) x 78.3 (W) x 43.4 (H) mm
• Weight: ~400g
• Battery: AAA x 6 PCS
• Power Consumption: Up to 10 hours of continuous operation
• Kit Includes: Meter, Optical D.O. Probe, (6) AAA batteries, Hard Carry Case, User Manual