Visão geral

The ProTrode pCO₂ sensor is an inline dissolved CO₂ sensor that operates on the Severinghaus principle. This dissolved carbon dioxide sensor consists of a glass pH electrode in a membrane cap filled with bicarbonate electrolyte. Carbon dioxide diffuses through the gas-permeable membrane, altering the pH value.
The membrane cap, made of titanium grade 2 (3.7025), resists corrosion. It can be replaced after 6–10 autoclaving cycles when response times are starting to increase.
The ProTrode pCO₂ sensor delivers reliable measurements for pharmaceutical and biotechnology manufacturing processes. Engineered for resilience, this dissolved CO₂ sensor is compatible with clean-in-place (CIP), sterilization-in-place (SIP), and autoclaving procedures, ensuring long-term durability.

Especificações técnicas

Technical specifications:
• Applications: Pharmaceuticals, biotechnology, fermentation
• Measuring technology: Severinghaus principle
• Measuring range: 10 – 950 mbar pCO₂ | 0.145 – 13.779 psi pCO₂
• Accuracy: ± (10 % of the reading + 10 mbar)
• Wetted membrane: Silicone
• Wetted metallic materials: Titanium, grade 2 (3.7025); Stainless steel (316S), Ra ≤ 0.4
• O-ring materials: Viton®, Silicone
• Temperature sensor: Pt1000
• Operating temperature: 0 – 60 °C
• Autoclaving: 20 min @135°C
• CIP / SIP: Yes
• Certificates & approvals: Upon request
• Operating pressure: 0.2 – 2 bar
• Shaft diameter: 12 mm
• Sensor connector: VarioPin, PG13.5
• Output signal: Analog
• Min. immersion depth: 10 mm
• Length (mm): 120, 220. Other lengths on request