Mettler Toledo InPro 3250i pH and ORP Sensor

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InPro-3250i

Mettler Toledo digital low maintenance pH/ORP sensor with high-alkali pH glass membrane, platinum auxiliary electrode, pre-pressurize liquid electrolyte, and integral digital temperature sensor for in-line measurement in demanding applications, even in extreme process conditions. Designed for use in chemical processes, pharmaceutical and life science production applications. 0-14 pH measurement range. Available in shaft lengths from 120 to 425 mm.

Territory Restriction: Effective September 1, 2023, Lesman is the authorized Mettler Toledo representative in Washington, Oregon, Alaska, Hawaii, and parts of Northwest Idaho. If you're located outside this region, call 800-638-8537 to find your local provider.

The InPro 3250i is a high accuracy and high performance sensor designed for reliable measurement performance under diverse operating conditions. It features Intelligent Sensor Management (ISM) technology, offering predictive diagnostics to reduce maintenance and calibration. The sensor provides a clear display of its remaining lifetime, time remaining until calibration, and counts of the SIP and CIP cycles it has undergone.

The InPro 3250i can measure both pH and ORP (Redox), and has a built-in digital temperature sensor. It is pressure resistant up to 4 barg (58 psig), has a watertight connector, and can withstand repeated sterilization and autoclave cycles. Its certification covers hazardous zone use, biocompatibility of the electrolyte, and all relevant hygiene and safety regulations.

  • 0-14 pH measuring range
  • Shaft lengths from 120 to 425 mm
  • Highly alkali-resistant glass membrane
  • Pre-pressurized liquid electrolyte, ceramic diaphragm, Argenthal cartridge with silver-ion trap
  • Suitable for temperatures 32°-212° F (0°-100° C), operating pressures 0-58 psig (0-4 barg)
  • CE, EHEDG, ATEX/IECex, FM, PED approvals
More Information
Measuring Range 0-14 pH
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