Mettler Toledo - Mettler ToledoInpro 3253/120/PT1000 pH Electrodes

• Used for accurate pH monitoring in chemical processing.
• Applied in pharmaceutical production for quality control and process validation.
• Essential for environmental monitoring in water treatment and effluent analysis.
• Utilised in food and beverage manufacturing for product consistency and safety.
• Integrated into biotechnology processes for cell culture and fermentation control.

Measurement Principle

Typically uses a combined glass electrode with a reference system.

pH Range

Units of this type commonly cover a broad pH range, often 0-14.

Temperature Sensor

This model includes an integrated PT1000 temperature sensor for automatic temperature compensation.

Shaft Length

The '120' in the model number typically indicates a shaft length of 120 mm, suitable for various immersion depths.

Process Connection

Commonly features a standard PG13.5 thread for easy installation into existing process connections.

Electrolyte

Typically uses a liquid or gel electrolyte, depending on the specific application requirements.

Material

The wetted parts are commonly made from pH-sensitive glass and chemically resistant plastics.

Operating Temperature

For this class of equipment, the operating temperature range is typically wide, often up to 130°C or higher.

• What is the typical lifespan of a pH electrode?

  The lifespan of a pH electrode varies significantly depending on the application, maintenance, and storage conditions. Regular calibration and proper cleaning can extend its operational life.

• How often should this electrode be calibrated?

• Can this electrode be used in harsh chemical environments?

• Is this electrode suitable for sterilisation processes?

• What kind of maintenance does this electrode require?

• Does this unit come with a cable or transmitter?

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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