Volumetric Karl Fischer Titrator

fisher bran

 

Titration Maintenance Agreement

You’ve made a great choice when you go with Hanna for your titration needs. All it needs is a little TLC, and it will serve you well for years.

All titration equipment requires annual maintenance due to the wearable parts and the harsh chemicals, such as sodium hydroxide, required in many titrations. An annual checkup, calibration, and replacement of burette accessories result in a long instrument life, accurate and precise results, and safe operation.

As always, Hanna delivers the quality and expertise you need at an affordable price. The Hanna Titration Maintenance Agreement keeps your instrument in optimal working order and ensures that you stay up-to-date on best testing practices. The agreement includes the following services and perks, which keeps your instrument performing at its best:

  1. One (1) onsite calibration, performed for you by certified personnel
  2. One (1) time replacement of wearable parts
  3. Backup of your titration methods
  4. Coverage by the Hanna Loaner Program. When you send your titrator in for service or repair, we will give you one of ours to borrow, with your methods loaded, so that you’ll never be without.
  5. One (1) refresher training by a Hanna expert
  6. 25% off all services, including your install
  7. 5% off all Hanna purchases
  8. Certificate provided to you upon completion

The Hanna titration line enjoys an incredibly low cost of ownership, and the Titration Maintenance Agreement is the cornerstone of that value.

 

 

 

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Description

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.

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 HI903 Volumetric 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.

Titration Results Averaging

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

Titrant Recordkeeping

The HI903’s titrant database can store information for up to 20 titrants. The database may be programmed to remind a user when to standardize their titrant, reducing error in analysis.

Selectable Endpoint Criteria

The HI903 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.

Burettes & Dosing System

Be confident in your results.

Our unmatched 40,000 step piston driven dosing pump is capable of dosing extremely small and highly accurate volumes of reagent, helping you achieve a very precise endpoint.

 

Engineered to be strong

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

 

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.

Titration & Solvent System

Efficient Sample Handling

The HI903 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 titration.

Sealed Solvent System

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

Visually Recognizable Desiccant

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

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 HI903 Volumetric Karl Fischer Titrator can store up to 100 user-defined or standard titration methods. We offer optimized Karl FIsher 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 Volumetric Karl Fischer Titrator.

Specifications

Titration Specifications

Range 100 ppm to 100%
Resolution 1 ppm to 0.0001%
Result Units %, ppm, mg/g, μg/g, mg, μg, mg/mL, μg/mL, mg/pc, μg/pc
Sample Types liquid or solid
Pre-Titration Conditioning automatic
Background Drift Correction automatic or user-selectable value
Endpoint Criteria fixed mV persistence, relative drift stop or absolute drift stop
Dosing dynamic with optional pre-dispensing rate
Result Statistic mean, standard deviation

Dosing System Specifications

Dosing Pump Resolution 1/40000 of the burette volume (0.125 μL per dose) with 5 mL burette
Dosing Pump Accuracy ±0.1% of full burette volume
Syringe 5 mL precision ground glass with PTFE plunger
Valve motor-driven 3-way, PTFE liquid contact material
Tubing PTFE with light block and thermal jacketing
Dispensing Tip glass, fixed position, anti-diffusing
Titration Vessel conical with operation volume between 50-150 mL
Solvent Handling System sealed system, integrated diaphragm air pump

Sensor System Specifications

Sensor Type HI76320 dual platinum pin polarization electrode
Sensor Connection BNC
Polarization Current 1, 2, 5, 10, 15, 20, 30 or 40 μA
Voltage Range 2 mV to 1000 mV
Voltage Resolution 0.1 mV
Accuracy (@25ºC/77ºF) ±0.1%

Additional Specifications

Programmable Stirrer magnetic, optically regulated, digital stirrer; 200 to 2000 rpm; resolution 100 rpm
Display 5.7” (320 x 240 pixel) color LCD
Methods up to 100 methods (standard and user-defined)
Logging Data up to 100 complete titration reports and drift rate reports can be stored
Peripherals (Rear) connections for VGA display, PC-keyboard, parallel printer, USB device input, RS232
GLP Conformity Good Laboratory Practice and instrument data storage and printing
Languages English, Portuguese. Spanish, and French
Enclosure Material ABS plastic and steel
Keypad polycarbonate
Operating Environment 10 to 40°C (50 to 104°F), up to 95% RH
Storage Environment -20 to 70°C (-4 to 158°F), up to 95% RH
Power Supply 100-240 VAC; “-01” models, US plug (type A); “-02” models, European plug (type C)
Dimensions 390 x 350 x 380 mm (15.3 x 13.8 x 14.9 in)
Weight approximately 10 kg (22 lbs.)

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