Automatic Potentiometric Titrator – HI901C

Volumetric Karl Fischer Titrator

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For scientists and professionals who need exact water content determination from 0.01 to 100%, the HI903 is a reliable Volumetric Karl Fischer Titrator that gives results in minutes.

Unlike other Karl Fischer titrators, the HI903 features an ultra-high precision dosing system and a specialized burette design for unmatched accuracy.

A Better Volumetric Karl Fischer Titrator Experience

Our friendly technical consultants take pride in helping make your titrator selection easy – every step of the way. Our experts are here to guarantee you have a positive experience, from onsite installation and training to customization and continued support.

Coulometric Karl Fischer Titrator

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Coulometric Karl Fischer Titrator Capabilities

Dynamic Titrant Dosing
The dynamic titration speed allows for timely and accurate titration results by relating the amount of iodine generated to the mV response from the Karl Fischer reaction. This provides for a larger generation of iodine near the beginning of a titration and more precise pulses near the titration endpoint.

Drift Rate Compensation
The HI904 Coulometric Karl Fischer Titrator automatically adjusts the titration calculation to account for the effects of any ambient humidity entering the titration cell. This provides a more accurate result by correcting for water not present in the actual sample.

Selectable Endpoint Criteria
The HI904 employs a dual platinum pin electrode for bivoltammetric endpoint determination. Users may choose termination criteria based on mV stability times or drift rates.

Multistage Cell Preparation
A pre-titration stage eliminates residual water present in the solvent and the cell, providing a reliable baseline start to analysis. Standby mode then keeps the solvent dry between titrations and when the titrator is not in use.

Purposeful Generator Design
Two styles of generators are available for the HI904 Coulometric Karl Fischer Titrator; a fritted design ideal for samples with low water content and high accuracy demand; and a fritless generator allowing for easier cleaning and maintenance.

Precision Iodine Generation
Our dosing algorithm allows for an extremely small amount of iodine necessary for the Karl Fischer reaction to be generated electrolytically using a pulsed current up to 400 mA, delivering iodine accurately and precisely.

Titration & Solvent System

Chemically Resistant Vessel & Tubing
The glass titration cell and PTFE tubing is designed to withstand the harsh solvents and reagents involved in Karl Fischer titration.

Sealed Solvent System
Ground glass joints completely seal the glass titration cell, minimizing exposure to ambient humidity, keeping the system dry, and reducing reagent consumption while saving time between titrations. Solvent may be exchanged in a matter of seconds with a quick fitting adjustment.

High Efficiency Desiccant
High efficiency molecular sieve desiccant helps maintain low and stable drift rates within the titration cell while preventing the ingress of ambient humidity into the sealed solvent system.

Interface & Display

All of your important information is displayed.
Our large color display shows you everything you need to know during testing.

Track your progress in real-time.
Our live titration curve helps you quickly recognize patterns and problems that may arise during your analysis.

Explore titrator menus with ease.
Custom keys allow you to clearly navigate between screens so you don’t get lost.

Titrator Data & Reporting
Highlight your most important information.
Final reports are customizable so you can make sure you are viewing and storing your most important information.

Safeguard the integrity of your data.
Our software allows you to record full GLP (Good Laboratory Practice) data so there is no need to compromise the quality of your results.

Move your information easily across devices.
Use our software or a USB to conveniently transfer files between your titrator and computer.
Titrator Support & Methods
We’ve got people here to help.
When you purchase one of our titrators, you’re not just getting an instrument – you’re getting our whole team of experts dedicated to your success. Get the level of onsite support you need with our Standard, Silver, Gold, and Platinum onsite installation and maintenance plans.

Customizable Methods
The HI904 Coulometric Karl Fischer Titrator can store up to 100 user-defined or standard Karl Fisher titration methods. We offer optimized titration methods for a wide range of industries. If we don’t have your method in our library, we’re ready to help meet your needs.

Align with your standard methods.
Our technical experts can program and customize standard methods developed by such affiliations as ISO, ASTM, AOAC, AOCS, EPA, and more directly onto your Karl Fischer Titrator.