MULTIPARAMETER WATER QUALITY METER
For scientists and professionals who need precise water content determination from 1 ppm to 5%, the HI904 is a reliable Coulometric Karl Fischer titrator that gives results in minutes.
Unlike volumetric Karl Fischer titrators, the HI904 features an precision titrant generation system and a fully sealed titration vessel for unmatched accuracy.
A Better Coulometric 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.
Titration Specifications
Range 1 ppm to 5%
Resolution 0.1ppm to 0.0001%
Result Units %, ppm, ppt, mg/g, μg/g, mg, μg, mg/mL, μg/mL, mg Br/100g, g Br/100g, mg Br, g Br
Sample Types liquid or solid with external dissolution / extraction
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
Result Statistic mean, standard deviation
Dosing System Specifications
Generator Configuration diaphragm or diaphragm-less
Generator Current Control automatic or fixed (400 mA)
Generator Type Detection automatic
Titration Vessel operating volume between 100 – 200 mL
Solvent Handling System sealed system with integrated diaphragm air pump and beaker adapter
Sensor System Specifications
Sensor Type HI76330 dual platinum pin polarization electrode
Sensor Connection BNC
Polarization Current 1, 2, 5, or 10 μA
Voltage Range 2 mV to 1100 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) backlit color LCD
Methods up to 100 (standard and user) methods
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
Dimensions 390 x 350 x 380 mm (15.3 x 13.8 x 14.9”)
Weight approximately 10 kg (22 lbs.)
