HI-903 Karl Fischer Volumetric Titrator for Moisture Determination

The HI-903-02 Karl Fischer Volumetric Titrator for moisture analysis

This powerful titrator automatically dispenses the titrant, detects the endpoint, and performs all necessary calculations and graphing.

Burette and Dosing System

Precision Dosing Pump

Our unmatched 40,000 step piston driven pump is capable of delivering as little as 0.125 µL of titrant accurately and precisely.

Anti-Diffusion Dispensing Tip

A specially designed glass dispensing tip delivers titrant precisely into high turbulence mixing zones, ensuring a rapid reaction. Its angular construction helps prevent titrant from diffusing into the sample solvent.

Chemically Resistant Tubing and Syringe

Aspiration and dispensing tubes are constructed of durable, chemically resistant PTFE and feature a light-blocking polyurethane outer sleeve to protect light sensitive reagents.

Titration and Solvent System

Efficient Sample Handling

The HI-903 features a quick-remove sample port with a replaceable rubber septum allowing for fast and easy sample introduction to the titration vessel. An integrated magnetic stirrer ensures homogeneity for an accurate and speedy reaction.

Chemically Resistant Titration Vessel

The glass and PTFE titration cell and fittings are designed to withstand the harsh solvents and reagents involved in Karl Fischer reactions.

Sealed Solvent System

The titration vessel is completely sealed to minimise exposure to ambient humidity. The system will keep dry, and titrant consumption will be reduced while saving time between titrations. Solvent may be exchanged in a matter of seconds without opening the titration vessel.

Visually Recognisable Desiccant

A rechargeable, colour-indicating, silica gel desiccant prevents the ingress of ambient humidity into the sealed system while maintaining full titrator functionality. The desiccant colour change allows a user to recognise when its’ adsorption capacity has depleted and is ready for replacement or recharging.

Titrator Capabilities

Dynamic Titrant Dosing

The dynamic dosing feature allows for timely and accurate titration results by relating the titrant volume dosed to the mV response from the titration reaction. This provides for larger doses near the beginning of a titration and smaller, more precise doses near the titration endpoint.

Drift Rate Compensation

The HI-903 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.

Titration Results Averaging

Successive results from a titration method may be averaged with recording of the standard deviation.

Titrant Record Keeping

The HI-903’s titrant database can store information for up to 20 titrants. The database may be programmed to remind a user when to standardise their titrant, reducing error in analysis.

Selectable Endpoint Criteria

The HI-903 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.

Interface and Display

Detailed Titration Graphs

A real-time titration curve can be displayed during each titration. This feature is useful when new methods are tested or when a procedure requires optimisation.

Interactive Colour Display

A large, colour LCD screen clearly shows the chosen titration method along with results, units, dosing size, titration volume, drift rate, and mV value.

Simple & Quick Navigation

Virtual key selections present on the display allow for simple and quick navigation between screens and menus without getting lost in a hive of information.

Data and Storage

Customizable Titration Reports

Each titration report is fully customisable so users can ensure they are storing and filing the appropriate data required for their application and procedures.

Flexible GLP Management

All necessary GLP (Good Laboratory Practice) information can be recorded with each sample including sample identification, company and operator name, date, time, electrode ID codes, and calibration information.

Effortless Data Transfer

Data can easily be transferred to a USB flash drive or PC with the Hanna HI-900PC application software. The USB port allows for the transfer of titration methods, titration reports, and software upgrades via USB flash drive.

Methods of Analysis

Customisable Methods

The HI-903 can store up to 100 user-defined or standard titration methods. Each method may be customised and optimised for performance based on application and user requirements.

Titration Method Support

Onsite installation, training, and customisation is available from our Lab Team. Hanna offers continued support via phone or video call for any questions you might have along the way.

Adaptable Standard Methods

Our highly-technical Lab Team can program and customise standard methods developed by affiliations such as ISO, ASTM, AOAC, AOCS, EPA, and more, directly onto your titrator.

Ask our Sales Consultants which standard methods are possible with our HI-903 Karl Fischer system.

Connectivity and Functionality

Configurable Balance Interface

Sample size may be automatically entered from any laboratory analytical balance with a RS232 serial output saving time and labour.

Multiple Peripherals

Users can print reports directly from the titrator using a standard parallel printer. An external monitor and keyboard may be attached for added versatility, as well as an analytical balance for automatic sample mass entry for titrations.

Versatile Data Management

• HI-900 Series titration systems can be easily incorporated into any existing GLP data management program. • Easily record all necessary GLP information with every sample, such as sample identification, company and operator name, date, time, electrode ID codes and calibration information • Data can be transferred to a PC using Hanna HI-900PC software • The USB port allows for the easy transfer of methods, reports and software upgrades via a USB flash drive • Users can print reports of analyses directly from the titrator using a standard parallel printer • An external monitor and keyboard can be attached for added versatility

More key features

• Customisable reports • Titration reports • Titration graphs • Methods • Standby • Results • Titrant database • Fully configurable balance interface • Fully customisable titration methods