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Portable Polarized Dissolved Oxygen Meter - Single Parameter (DDO10)
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Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10)

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The  Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10) is a rugged, handheld instrument designed for accurate, low-maintenance, on-site dissolved oxygen analysis. Utilizing optical/fluorescence sensor technology , it measures DO concentration (0.00~20.00 mg/L) and percent saturation (0.0~200.0%) with automatic compensation for temperature, barometric pressure, and manual salinity changes .
Featuring a 3.5-inch TFT color screen and a user-friendly UI interface , the Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10) simplifies field water quality testing. It stores up to 3000 data sets, supporting GLP-compliant documentation, and its rechargeable lithium battery with a Type-C port ensures convenient power for mobile use. The system includes an optical DO probe (DODO01-3M) with a POM shell and stainless steel protection sleeve , a hard carrying case, and charging cable .
For the water quality specialist, the Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10) is essential for monitoring dissolved oxygen in purified water systems (WFI, dialysis water), assessing aeration in wastewater treatment, and verifying water quality in pharmaceutical production and hospital facilities . Its optical technology eliminates the need for electrolyte refills, membrane cap replacements, long polarization times, and frequent calibrations — dramatically reducing maintenance compared to polarographic DO meters and allowing for precise measurements without sample stirring .
For the patient, this rigorous monitoring helps ensure that water used in dialysis and other medical treatments meets stringent safety standards, preventing potential harm from improperly treated water. The meter provides quick (<15 second response), reliable, and verifiable results for any application requiring critical DO measurement.
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Description

Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Rapid, Maintenance-Free Dissolved Oxygen Measurement for Water Quality Surveillance
  • Primary Use: Provides a portable, single-parameter meter utilizing optical/fluorescence dissolved oxygen (DO) technology to measure DO concentration (0.00~20.00 mg/L) and oxygen saturation (0.0~200.0%) in aqueous samples, with integrated automatic temperature and barometric pressure compensation, as well as manual salinity compensation for accurate readings .
  • How it helps: For the clinical laboratory scientist and water quality specialist, the DDOPRO10’s optical technology requires no electrolyte or membrane cap replacement, eliminates long polarization times and frequent calibration, and offers a rapid response time (<15 seconds) . The 3.5-inch TFT color screen, IP57 dustproof/waterproof rating, and rechargeable lithium battery (charged via Type-C port) make it ideal for field use . For the patient, accurate measurement of dissolved oxygen in water used for dialysis, pharmaceutical production, or other medical processes is a critical parameter for ensuring water quality and preventing adverse events related to improper water treatment .
2. Monitoring of Critical Water Systems in Healthcare Facilities
  • Primary Use: Designed to monitor dissolved oxygen levels in purified water systems, water-for-injection (WFI) loops, and pharmaceutical process water to assess system integrity, microbial control, and oxidation-reduction conditions .
  • How it helps: For the facility water quality manager and infection control officer, the Portable Optical Dissolved Oxygen Meter – Single Parameter (DDOPRO10) fluorescence-based probe consumes no oxygen during measurement, ensuring stability in low-flow or stagnant water systems . The durable POM (polyoxymethylene) shell electrode with stainless steel protection/weighting sleeve is suitable for use in harsh environments . For the patient, continuous and accurate monitoring of water treatment processes helps prevent healthcare-associated infections linked to waterborne pathogens and ensures the chemical compatibility of water used in medical device processing .

SECONDARY & SUPPORTIVE USES

1. Pharmaceutical Bioprocess Support: Verifies DO levels in small-scale bioreactors, shaker flasks, and fermentation systems during pharmaceutical R&D.
2. Wastewater Treatment Monitoring: Measures dissolved oxygen in hospital wastewater treatment systems to assess treatment efficacy and aeration basin performance .
3. Aquaculture and Zebrafish Facility Management: Used to monitor dissolved oxygen levels in aquatic animal housing facilities within research institutions .
4. Boiler Water and Steam Generation Monitoring: Checks scavenger residuals and corrosion potential in boiler water systems for hospital facilities.
5. Environmental and Surface Water Monitoring: Portable format is ideal for field studies measuring DO in natural water bodies to assess ecosystem health .
6. Food and Beverage Quality Control: Used in the production of beverages (e.g., soft drinks, beer) and packaged foods where dissolved oxygen levels affect product shelf-life and quality.
7. Educational and Laboratory Training: Serves as a practical teaching tool for demonstrating modern optical sensor technology and water quality measurement principles.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: A portable, battery-operated meter using an optical (fluorescence-based) dissolved oxygen sensor. It is a single-parameter instrument for measuring DO concentration and saturation, with integrated temperature measurement and automatic/built-in compensation mechanisms .
  • Designation: Portable Optical Dissolved Oxygen Meter - Single Parameter (DDOPRO10), DLAB Portable Optical Dissolved Oxygen Meter - Single Parameter (DDOPRO10), Portable Optical DO Meter, Single-Parameter DO Analyzer .
  • Key Components:
     • Instrument Meter: Portable housing with a 3.5-inch TFT LCD color screen, UI interface, and Type-C charging port .
     • Optical DO Probe: DODO01-3M optical dissolved oxygen electrode with 3-meter cable, POM shell, and stainless steel protection/weighting sleeve .
     • Power Supply: Rechargeable lithium battery (pre-installed) and charging cable .
     • Accessories: Hard carrying case (33 × 27.2 × 8.2 cm) for transport and storage .

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Measurement Range: Dissolved oxygen: 0.00~20.00 mg/L; Oxygen saturation: 0.0~200.0% .
  • Measurement Accuracy: DO: ±0.20 mg/L .
  • Temperature Measurement Range: 0.0~100.0°C / 32.0~212.0°F (probe limit), Display range up to 135.0°C .
  • Temperature Accuracy: ±0.2°C .
  • Compensation Methods: Automatic barometric pressure compensation (0~200.0 kPa), automatic temperature compensation (0.0~50.0 °C), and manual salinity compensation (0~45 ppt) .
  • Display: 3.5-inch TFT LCD color screen .
  • Data Storage: 3000 data sets, including parameter, measured value, temperature, and timestamp .
  • Power Supply: Rechargeable lithium battery, charged via Type-C port .
  • Protection Class: IP57 (dustproof and waterproof) .
  • Dimensions (Carrying Case): 33 × 27.2 × 8.2 cm .

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Display: High-resolution color TFT screen for superior visibility and user experience .
  • User Interface: New UI design and intelligent operation system with functions for timed measurement, data locking, and parameter setting .
  • Sensor Technology: Fluorescence/optical technology — does not consume dissolved oxygen, ensuring measurement stability and no stirring requirement .
  • Connectivity: Type-C charging port, compliant with modern electronics standards .
  • Electrode Design: POM shell electrode, rugged and durable; stainless steel protection/weighting sleeve suitable for harsh environments . No electrolyte or membrane cap replacement needed; no long polarization time or frequent calibration required .
  • Response Time: <15 seconds .

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Regulatory Status: IVD (In Vitro Diagnostic) preparatory equipment; complies with GLP standards for data management .
  • Waterproof Rating: IP57, providing reliable operation in humid or wet field conditions .
  • Power Management: Built-in low-power management, automatic power-off, and power failure protection functions .
  • Software Upgradeable: Supports software upgrades for maintaining instrument performance .
  • Warranty: 2-year manufacturer warranty (electrode warranty may be excluded) .

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store the meter in a clean, dry place. The optical DO probe should be stored with the sensor cap protected from light and extreme temperatures; do not allow the sensing element to dry out completely (follow manufacturer storage instructions) .
  • Cleaning: Rinse the probe with distilled water after each use. Wipe the meter body with a soft, damp cloth using a mild detergent. Do not submerge the meter body.
  • Calibration: Calibrate the meter before use, typically in water-saturated air (100% humidity) or using a zero-oxygen solution . The optical technology reduces the frequency of calibration compared to polarographic probes .
  • Data Export: Connect to PC using software to configure parameters and export recorded data as CSV files for analysis .
  • Maintenance: No electrolyte solution or membrane cap replacement is required, dramatically reducing maintenance compared to polarographic DO meters .

6. LABORATORY & CLINICAL APPLICATIONS

  • Primary Application: On-site or laboratory measurement of dissolved oxygen concentration to assess water quality, monitor biological processes, and support environmental compliance in water treatment, aquaculture, pharmaceutical, and food/beverage facilities .
  • Clinical Role: Used in hospital engineering and facility management teams for water quality surveillance of dialysis water systems, purified water loops, pharmaceutical process water, and wastewater treatment plants, as well as in pharmaceutical QA/QC for water system validation .
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Electrical Safety: Do not immerse the meter in liquid, despite its IP57 rating. Ensure the Type-C port is dry before charging. Avoid pulling the probe cable violently .
  • Probe Handling: The optical probe is delicate. Do not touch the optical sensing element with sharp objects or abrasives. Do not use the probe in solutions containing organic solvents that might damage the sensor coating .
  • Optical Sensor Cap: The sensor cap has a finite lifespan (typically 1-2 years). Replace the sensor cap as recommended by the manufacturer to maintain accuracy .
  • Calibration Intervals: Calibrate the meter periodically as per facility protocol, especially when high accuracy is required for critical water systems . Optical technology requires less frequent calibration than polarographic probes .
  • Stirring Not Required: The optical probe does not consume oxygen and does not require sample stirring, simplifying field measurements .

2. FIRST AID MEASURES

  • Sample Splash: If a biological sample splashes into the eyes, flush with water for 15 minutes and seek medical attention; if on skin, wash with soap and water .
  • Electrical Malfunction: If the meter shows signs of electrical malfunction, disconnect it from any power source and contact service personnel .

3. FIRE FIGHTING MEASURES

  • Flammability: The plastic housing, cable, and case are combustible; may melt or burn if exposed to flame or high heat .
  • Extinguishing Media: Use carbon dioxide (CO₂) or dry chemical extinguisher for electrical fires .
  • Fire Response: Disconnect the meter from the charging cable; do not use water on an electrical fire .

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