Mettler Toledo InPro (Unused Boxed) 3253/120/PT1000 Pre‑pressurized, liquid‑filled, low‑maintenance pH sensor

• Monitoring pH in chemical processing to ensure reaction efficiency and product quality.
• Controlling pH levels in food and beverage production for optimal taste, preservation, and safety.
• Measuring pH in pharmaceutical manufacturing to maintain sterile conditions and drug efficacy.
• Environmental monitoring of water treatment plants and industrial effluent to comply with regulations.
• Quality control in laboratories for various analytical and research purposes.

pH Measurement Range

Typically 0-14 pH, suitable for a wide array of acidic to alkaline solutions.

Temperature Sensor

Commonly includes an integrated Pt1000 temperature sensor for accurate temperature compensation.

Reference System

Often features a pre-pressurised liquid-filled reference system for enhanced stability and reduced maintenance.

Shaft Length

For this model, a shaft length of 120mm is specified, which is common for immersion into tanks or pipes.

Electrode Material

Typically constructed with robust glass for the pH-sensitive membrane, suitable for various chemical environments.

Connection Type

Commonly uses a standard VarioPin (VP) connector for reliable signal transmission and easy replacement.

Maintenance

Units of this type are designed for low maintenance, often due to their pre-pressurised reference system.

• What is the benefit of a pre-pressurised sensor?

  A pre-pressurised sensor helps prevent the ingress of process media into the reference system, extending sensor lifespan and reducing contamination, particularly in challenging applications.

• Can this sensor be used in high-temperature applications?

• Is this sensor suitable for hygienic applications?

• What kind of maintenance does this sensor require?

• What is the typical lifespan of a pH sensor like this?

pH meters and sensors attract strong buyer interest in laboratory, biotech and pharmaceutical settings. Industry consensus values accuracy, calibration stability and sensor longevity as critical factors. Used units typically offer good value if maintained properly. Buyers prioritise checking calibration history, electrode condition and display functionality before purchase. Reputable brands retain performance well. Common strengths include reliable readings in controlled environments and straightforward operation, though sensors require regular maintenance and occasional replacement to sustain accuracy standards.

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