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

• Continuous pH monitoring in chemical processing lines.
• Real-time pH control in fermentation and bioreactor systems.
• Quality control and process optimisation in food and beverage production.
• Effluent monitoring in wastewater treatment plants.
• pH measurement in pharmaceutical manufacturing processes.

Sensor Type

Typically a combined pH electrode with integrated PT1000 temperature compensation.

Process Connection

Commonly Pg 13.5 threaded connection for in-line installation.

Shaft Length

For this model, typically around 120 mm, suitable for limited insertion depths.

Operating Temperature Range

Units of this type commonly operate from 0 °C to 100 °C.

Pressure Rating

Typically rated for pressures up to 4 bar gauge.

Sterilisation

Often designed to be sterilizable/autoclavable for hygienic applications.

Connector Type

Commonly features a VP industrial connector for robust electrical connection.

Certifications

Units for industrial use are typically supplied with relevant industrial and safety certifications (e.g., CE, ATEX).

• What is the primary use of an InPro 3253/120/PT1000 pH electrode?

  This electrode is designed for continuous, in-line industrial pH measurement in process environments, not for simple laboratory spot checks. It provides real-time data for process control.

• Why is a PT1000 sensor integrated into the electrode?

• Can this electrode be used in hazardous environments?

• What does the '120' in the model number signify?

• Is this electrode suitable for hygienic applications like food or pharma?

• What maintenance does this type of electrode typically require?

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.

General overview for this equipment type