Expert in Water Quality Measurement and Water Treatment Project Since 2007
Product Overview
- Model: DOG-208FA high-temperature dissolved oxygen (DO) sensor by BOQU.
- Designed for on-line measurement of dissolved oxygen and temperature in liquids and gases, especially where steam sterilization/autoclaving is required.
- Measurement ranges: DO up to 20.0 mg/L with sensitivity into the µg/L level; temperature 0–130.0 °C.
- Constructed in SS316L with selectable diameters (12 mm, 25 mm) and insertion lengths (120, 225, 325 mm).
Product Features
- High-temperature, steam-sterilizable design resistant to 130 °C autoclaving.
- Polarographic (electrochemical) sensing with platinum cathode and silver anode.
- Fluorine-plastic/silicone/stainless-steel-mesh composite breathable membrane; steel gauze membrane prevents deformation at high temperature.
- Built-in PT1000 temperature compensation; response time ≈ 60 s to 95% response.
- Low response current in air (~60 nA) and negligible current in nitrogen; drift
Product Value
- Enables reliable, continuous DO monitoring in high-temperature and sterilization processes (reducing manual sampling and downtime).
- High sensitivity and stability support precise process control in critical biotech, pharmaceutical and fermentation operations.
- Directly interchangeable with major-brand high-temperature DO probes (e.g., Mettler Toledo, Hamilton), easing upgrades or replacements.
- Cost-effective solution with factory quality control for consistent performance.
Product Advantages
- Purpose-built for high-temperature and pressure-balanced operation, tolerating repeated sterilization cycles without deformation.
- Robust materials and composite membranes increase longevity and operational reliability in harsh process conditions.
- Fast response and low drift provide stable measurements for process control and QC.
- Produced by BOQU with dedicated R&D and QC teams; first high-temperature laboratory in China claimed, supporting product development and testing.
Application Scenarios
- Small microbial culture reactors and on-line bioreactors where sterilization/autoclaving is frequent.
- Pharmaceutical and biotech process control (fermentation monitoring, sterile production lines).
- Beverage and brewing industry applications (beer fermentation).
- Any industrial CIP/autoclave/sterilization environments requiring continuous DO measurement in liquids or gases.