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

Applications & Use Cases

• 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.

Typical Specifications

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).

Frequently Asked Questions

• 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?