Titrators

The electrode and burette are the parts that most affect accuracy, so ask about their condition and age. Electrodes have a service life and may need replacement, while burette dosing units should be checked for accuracy. Confirm whether a working electrode is included. These components matter far more than the instrument's outward condition.

Confirm whether the titrator handles acid-base, redox, precipitation or Karl Fischer methods as your work requires. Some instruments cover several modes while others are dedicated. Ask whether the software supports the determinations you run. Matching modes to your methods ensures the instrument does the job.

Coulometric Karl Fischer suits trace moisture measurement, while volumetric handles samples with higher water content. Choose based on the moisture range of your samples. Confirm the reagent type the instrument uses and that it remains available. Selecting the right principle is central to accurate water determination.

Titrators use electrodes, reagents, solvents and sometimes drying agents that need regular replacement. Ask the seller which consumables the instrument requires and whether any come with it. Confirm these remain readily sourced. Understanding running costs helps you budget accurately.

Sellers are identified on the marketplace, so you can request photographs, model details and service records directly. Ask whether the titrator was removed in working order and why. Buying from the owner puts your questions about titration setup with someone who knows the unit. That transparency supports a confident purchase.