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    อุปกรณ์การไทเทรต (Karl Fischer Volumetric Titrator For Moisture Determination)

    HI 903

    Karl Fischer Volumetric Titrator For Moisture Determination

    Precision titrant delivery system

    40,000 step, piston dosing pump
    Accurate to 0.1%
    Delivers as little as 0.125 µL of titrant
    Precision ground, 5 mL glass burette with PTFE plunger, PTFE burette tubing, and polyurethane tube jacketing (thermally insulating, light blocking)
    Glass anti-diffusion dispensing tip
    Clip-Lock™ exchangeable burette system enables users to exchange reagent burettes in a matter of seconds

    Sealed solvent system

    Change to fresh solvent in a matter of seconds without opening the titration vessel
    Minimizes exposure to ambient humidity, reducing titrant consumption and saving time
    PTFE solvent tubing is resistant to harsh KF solvents and titrants

    Beaker top

    Chemically-resistant reaction vessel cap and fittings
    Quick-remove sample port plug with replaceable silicone rubber septum

    Anti-diffusion burette tip

    Delivers titrant in high turbulence zone, ensuring rapid reaction
    Prevents unwanted diffusion of titrant

    Built-in stirrer

    Automatic, integrated magnetic stirrer adjustable from 200-2000 RPM
    Optical feedback for automatic speed control
    Optional external stirrer available

    Rechargeable indicating desiccant

    Prevents the ingress of ambient humidity into the sealed solvent system while  maintaining full titrator functionality
    Minimizes changes to titrant titre
    Indicates when adsorption capacity is depleted
    Regenerates at 150°C

    PTFE bottle cap

    Caps fit any GL45-threaded bottle
    Chemically resistant caps and fittings
    Removable desiccant cartridges

    Adaptable, High Accuracy Moisture Determination

    The HI 903 Karl Fischer Volumetric Titrator for moisture analysis is an extension of HANNA’s highly successful potentiometric titrator platform. The HI 903 combines an ultra-high precision titrant delivery system with optically regulated magnetic stirring, sophisticated endpoint determination, dynamic dosing and background drift correction algorithms.

    The result is an extremely adaptable titrator capable of titrating with superior accuracy and precision even for samples with low moisture content. The HI 903 dispenses the titrant, detects the endpoint and performs all necessary calculations automatically.

    The HI 903 comes equipped with a solvent handling system to reduce cell conditioning time and can be connected directly to your laboratory balance via serial interface.

    The HI 903’s powerful software and intuitive menus are easily navigated on the large, color LCD display making it simple to view results. Choose from included methods or develop a custom method for almost any application or sample type. Using a USB flash drive or connecting the titrator to the HI 900PC application, methods (standard and user) can be upgraded, stored or deleted.

    Clip-Lock™ Exchangeable Burette System

    With Clip-Lock™, it only takes a couple of seconds to exchange the reagent burettes to perform a different titration.

    The Clip-Lock™ exchangeable burette system prevents cross contamination while reducing loss of time and reagents. Burettes simply slide out for quick exchanges, and detaching the aspiration and dispensing tubes from the titrant bottles is easy.

    Interrupting an important cycle of analysis due to a malfunctioning burette is a thing of the past. With the HANNA Clip-Lock™ system you can simply substitute the burette and complete all your tests with the same titrant! Having several prepared burettes on hand will make the HANNA HI 903 one of the fastest and most versatile titration systems available.

    Order Information:
    HI 903-01 (115V) and HI 903-02 (230V) are supplied with dual platinum pin electrode, dosing pump, 5 mL burette assembly with tubing, air pump assembly with tubing, beaker and bottle top assemblies and all fittings, desiccant cartridges (4) with indicating desiccant, stir bar, waste bottle, calibration key, USB cable, power cable, HI 900PC application, USB flash drive, quality certificate, ISO 8655 burette compliance report and instruction manual binder.


    Range   100 ppm to 100%
    Resolution   1 ppm (0.0001%)
    Result Units   %, ppm, mg/g, µg/g, mg, µg, mg/mL, µg/mL, mg/pc, µg/pc
    Sample Type   liquid or solid
    Determination 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
    Clip Lock™ Dosing Pump Resolution 1/40000 of the burette volume (0.125 µL per dose)
    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
    Electrode Type dual platinum pin, polarization electrode
    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 mV
    External Stirrer Type magnetic, optically regulated, digital stirrer
    Speed 200-2000 rpm
    Resolution 100 rpm
    Peripheral Devices PC easily view, transfer, print or delete methods and reports via HI900PC application
    USB Flash Drive easily upgrade software or transfer methods and reports between devices using a USB drive
    Laboratory Analytical Balance RS232 to connect any laboratory balance
    Printer print directly from the HI 903 to a printer via parallel port
    Monitor instrument status and titrations can be viewed on a larger screen using any VGA compatible external monitor
    Keyboard alphanumeric text can be entered using an optional PS/2 keyboard
    Graphic Display   5.7” (320 x 240 pixel) color LCD
    Titration Methods   up to 100 (standard and user) methods
    Data Storage   up to 100 complete titration reports and drift rate reports can be stored
    GLP Conformity   Good Laboratory Practice and instrument data storage and printing
    Languages   English, Portuguese and Spanish
    Enclosure Material   ABS plastic and steel
    Keypad   polycarbonate
    Power Supply   “-01” model: 115VAC, 50/60 Hz;
    “-02” model: 230VAC, 50/60 Hz;
    Operating Environment   10 to 40ºC, up to 95% RH
    Storage Environment   -20 to 70ºC, up to 95% RH
    Dimensions   390 x 350 x 380 mm (15.3 x 13.8 x 14.9”)
    Weight   approximately 10 kg (22 lbs.)


    HI 76320D KF Electrode
    HI 900100 Dosing Pump
    HI 900520 Beaker Assembly
    HI 900505 5 mL Burette Assembly
    HI 900205 5 mL Burette Syringe
    HI 900260 3-Way Valve
    HI 900522 KF beaker
    HI 900523 Dispensing tip
    HI 900527 Septum
    HI 900528 Solvent Port Plugs
    HI 900530 Titrant Bottle Top Assembly
    HI 900534 Waste Bottle
    HI 900531 Solvent/Waste Bottle Top Assembly
    HI 900532 Desiccant Cartridge for Beaker or Titrant
    HI 900533 Desiccant Cartridge
    HI 900180 Solvent-Handling Pump
    HI 900535 Tubing for Solvent/Waste Handling
    HI 900536 Tubing for Solvent-Handling Pump
    HI 900540 O-Ring Set
    HI 900570 Aspiration Tubing
    HI 900580 Dispensing Tubing and Fitting
    HI 900930 RS232 Cable for PC Connection


    Manual: (Download)
    Literature: (Download)

  • Requesting a Quotation and Ordering Products

    131 Thailand Science Park. Innovation Cluster 1 Building,

    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

    E-mail :


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