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

These Items are unused and boxed in original Packaging.

Supplier Catalogue No. 52002567

The Mettler Toledo InPro 3253/120/PT1000 is a high‑performance in‑line pH sensor / electrode with some specific featuresA pre‑pressurized, liquid‑filled, low‑maintenance pH sensor.

It has a built‑in PT1000 temperature sensor for temperature compensation.

The sensor length (shaft) is 120 mm, which is relatively short, making it suitable for installations with limited insertion depth.

It is sterilizable/autoclavable and optimized for steam sterilization or autoclaving cycles. That means it can withstand repeated sterilization without losing performance.

Reference system: pre‑pressurized liquid electrolyte, with a ceramic diaphragm, and includes an Argenthal cartridge with a silver‑ion trap (for better performance in environments with sulfides etc.)

It can handle pressures up to 4 bar gauge and works in the range 0 °C to 100 °C.

It has process connection thread of Pg 13.5, and its connector is of “VP” type

This sensor would be used in settings where real‑time, reliable pH measurement is needed under harsh or demanding conditions. Some examples:

1. Biopharmaceutical / biotechnology production, e.g. fermenters, bioreactors, where sterilisation (e.g. steam) is frequent and you need accurate pH control.
2. Hygienic food or beverage processing where cleaning and sanitisation/sterilisation are done in‑place (CIP / SIP).
3. Chemical processing, especially where pH may swing extreme and environment may be harsh (high/low pH, temperature, maybe some contaminants).
4. Water/wastewater treatment in situations needing durable, robust probe