Thermo Scientific 8175BNWP Orion ROSS Sure-Flow pH Electrode

Thermo Scientific Orion 8175BNWP ROSS Sure-Flow pH Electrode

The Thermo Scientific Orion 8175BNWP is a high-performance combination pH electrode designed to deliver stable and accurate readings in the most demanding laboratory environments. Built with a durable epoxy body and a semi-micro tip, this probe easily reaches into narrow vessels, test tubes, and microcentrifuge tubes. The core of its performance lies in the proprietary ROSS internal reference system, which provides rapid response times and superior temperature stability compared to standard Ag/AgCl electrodes. Furthermore, the unique Sure-Flow sleeve junction allows a steady flow of the 3M KCl reference filling solution, actively preventing the build-up of particulates. If the junction becomes dirty or fouled, simply pressing down on the electrode cap flushes the junction clean, restoring performance instantly and extending the overall lifespan of the probe.

Technical Performance and Design

• ROSS Reference System: Provides unparalleled stability and incredibly fast response times, regardless of extreme sample temperature variations, ensuring highly reproducible pH measurements from 0 to 14.

• Sure-Flow Sleeve Junction: Features a free-flowing liquid junction that actively resists clogging. A simple click of the top cap flushes the junction with the internal filling solution, making it incredibly easy to clean between messy samples.

• Semi-Micro Epoxy Body: The rugged epoxy construction protects the internal glass components from accidental impacts, while the 8 mm thin-stem tip allows for precise pH measurements in extremely small sample volumes.

• Waterproof BNC Connector: The universal BNC connection ensures broad compatibility with most standard pH meters, while the waterproof housing protects the electrical contacts from corrosive spills and moisture.

Product Specifications

• Catalog Number: 8175BNWP

• pH Range: 0 to 14

• Temperature Range: 0°C to 100°C

• Body Material: Epoxy (Semi-Micro Tip)

• Junction / Reference: Sure-Flow Sleeve / ROSS

• Connector Type: Waterproof BNC (1-meter cable)

Key Benefits & Applications

• Viscous & Colloidal Samples: The absolute gold standard for measuring the pH of challenging matrices like thick cosmetics, sludges, soils, paints, and food slurries that would instantly ruin a standard porous frit.

• Micro-Volume Testing: The extended 95 mm semi-micro tip reaches perfectly to the bottom of tall, narrow NMR tubes or small volume aliquots where a standard 12 mm probe cannot fit.

• Easy Maintenance: The flushable Sure-Flow design dramatically lowers the cost of ownership by allowing researchers to thoroughly clean the probe rather than throwing it away when the junction fouls.

• Temperature Flexibility: Delivers highly accurate readings without the long stabilization wait times when moving between samples at vastly different temperatures.

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