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Karl Fischer Volumetric Titrator HI903

The HI903 Karl Fischer Volumetric Titrator is an automatic titrator that complements our wide range of products dedicated to efficient and accurate laboratory analysis. The HI903 analyzes for water content ranging from 100 ppm to 100%. This powerful titrator automatically dispenses the titrant, detects the endpoint, and performs all necessary calculations and graphing.

Brand: Hanna

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Product CodeProduct Product Description Price (Excl gst) Qty Add
HA-HI903-02 Karl Fischer Volumetric Titrator HI903 Karl Fischer Volumetric Titrator HI903 Login for price  

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Features at a glance

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 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 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.

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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