Gone are the days when people had to worry about whether a Karl Fischer coulometric or volumetric titrator was the appropriate solution for their applications – worries about the correct sample size and tedious reagent factor determinations with water standards are now things of the past.
The MKH-700 ushers in a new era of Karl Fischer Titration: It is the first Karl Fischer Titrator which can do both, volumetric and coulometric Karl Fischer titrations. The MKH-700 seamlessly combines both methods, adapting the titration procedure perfectly to the water content and nature of the sample being measured.
Coulometer? Volumeter? Hybrid!
The Hybrid Karl Fischer Titrator not only performs both, volumetric and coulometric Karl Fischer titrations: Depending on the water content of the sample, the hybrid titrator automatically applies the most appropriate procedure to perform the titration. This ensures maximum accuracy within the shortest possible measuring time.
Karl Fischer factor measurement – a matter of a keystroke
No water standards to inject, no weighing errors, less work: The instrument determines the factor of the Karl Fischer reagent by coulometric backtitration at the click of a button.
No need to worry about the correct sample size
No matter whether a sample contains 10 μg or 500 mg of water: The MKH-700 automatically applies the most accurate and quickest procedure to measure it.
Easy operation, trouble-free maintenance
A large capacity, easy to open titration cell with a large sample inlet and a generator electrode with replaceable membrane ensure easy operation and maintenance.
The MKH-700 not only performs both, coulometric or volumetric titrations, it can even combine the two methods in a way, which ensures highest accuracy and short analysis times: In the so called Hybrid Titration (patent pending) the MKH-700 automatically detects the amount of moisture in the sample and behaves accordingly:
Whatever the nature of sample to be measured, the MKH-700 always applies the fastest and most accurate type of Karl Fischer titration to determine its moisture content:
For samples which cannot be titrated directly (like plastics, paper, motor oils with additives) the MKH-700 can remotely control an ADP-610 evaporator.
Furthermore, the MKH-700 can be equipped with an additional internal or external burette.
The MKH-700 can determine the factor of the volumetric Karl Fischer reagent by coulometric backtitration. This feature (patent pending) offers major advantages in terms of ease of use:
The large color touchscreen of the MKH-700 Karl Fischer Hybrid Titrator provides an intuitive user guidance and offers at the same time a clearly laid out display of all the relevant information during the measurements.
The MKH-700 comes with a large capacity titration cell with a large sample inlet and an easy to remove, multi purpose top cover. This new design offers substantial advantages compared to traditional Karl Fischer titration cells:
The MKH-700 comes with a built-in pump to drain and fill the titration cell.
Furthermore, the coulometric generator electrode is equipped with a membrane, which is can easily be replaced.
A multitude of functions and automatic alerts help to ensure reliable results and a smooth trouble free operation of the system: The MKH-700 issues a warning when the Karl Fischer reagent needs to be replaced. Periodic alerts prompt the operators to perform system performance checks at regular intervals.
The MKH-700 can remotely control the ADP-611 evaporator. This allows to define all the measuring parameters including the purge cycles and the temperature in the evaporator in one single method. The temperature in the evaporator needs to be selected according to the nature of the sample being measured: It should be high enough to evaporate the water as quickly and completely as possible, but not so high as to decompose the sample. By executing a measurement with the scan function, the system determines the ideal evaporator temperature automatically.
The MCU-610 control unit of the titrator can be placed up to 10 m away from the titration unit, it can be wall mounted and the angle of its screen can be adjusted between 0 and 90°. A good visibility and an ergonomic operation is guaranteed even if the system has to be set up on a relatively high bench.
The statistics functions of the MKH-700 not only ensure an easy execution of multiple determinations, they also simplify n-fold determinations of blank values as the mean values of such determinations are automatically stored.
The MKH-700 offers furthermore advanced filter functions for titration results stored in the instrument in order to evaluate them statistically. Titration data can as well be stored on an USB flash drive or a compact flash card.
ASTM D 1364-78
ASTM D 4377
ASTM E 1064-92
EN ISO 12937:2002-03
ASTM D 4017
|Type||Hybrid Karl Fischer Moisture Titrator|
|Coulometric Titration||Measurement method||Karl Fischer Coulometric Titration|
|Measuring range||Water content||10 μg … 300 mg H2O|
|Precision||RSD||less than 0.3% (n=10)|
|Display resolution||0.1 μg|
|Volumetric Titration||Measurement method||Karl Fischer Volumetric Titration|
|Measuring range||Water content||100 μg … 500 mg H2O
(depends on KF reagent factor)
|Concentration||1 ppm … 100% H2O|
|Discharge precision||± 0.015 mL|
|Repeatability||± 0.005 mL|
|Hybrid Titration||Measurement method||Karl Fischer Coulometric Titration
Karl Fischer Volumetric Titration
|Measuring range||Water content||10 μg … 500 mg H2O|
|Precision||RSD||less than 0.3% (n=10)
(Karl Fischer reagent factor 3 mg/mL)
|Display resolution||0.1 μg|
|Factor measurement of reagent by electrolysis||Measurement method||Factor measurement of reagent by electrolysis|
|Measuring range||KF reagent||Reagent factor from 1 to 5|
|Precision||RSD||less than 1.0% (n=3)
(dose volume 0.5 mL, reagent factor 3 mg/mL)
|Data storage||On board memory||300 measurements|
|External memory||Memory card (Compact Flash), USB memory stick|
|External I/O (measuring unit)||RS-232C||1ch (for sample changer / Evaporator)|
|SS-Bus||1ch (for automatic piston burette)|
|K-NET||1ch (for main control unit)|
|External I/O (main control unit)||COM1/COM2||2ch (for dot matrix printer, electronic balance, PC)|
|CF card||1ch (Compact Flash)|
|USB||1ch (USB memory stick)|
|K-NET||2ch (measuring units)|
|Languages||English / Japanese|
|Ambient conditions||Temperature||5 … 35 °C|
|Humidity||< 85% RH (no condensation)|
|Power supply||Measuring unit||DC 24 V 5 A
AC 100 … 240 V ± 10% 50/60 Hz (comes with AC adapter)
|Main control unit||DC 12 V 3A
AC 100 … 240 V ± 10% 50/60 Hz (comes with AC adapter)
|Dimensions||Measuring unit||141 (W) x 296 (D) x 383 (H) mm (not incl. tubing)|
|Main control unit||230 (W) x 285 (D) x 255 (H) mm|
|Stirrer / Cell||110 (W) x 230 (D) x 350 (H) mm|
|Dispenser||240 (W) x 170 (D) x 110 (H) (not incl. tubing)|
|CE marking||Conforming to EN61326, EN61010-1,
|Export packing in double carton box||MKH-700||G/W 12.0 kg | 560 (W) x 440 (D) x 505 (H) mm
G/W 26.5 lbs | 22.0 (W) x 17.3 (D) x 19.9 (H) inches
|MCU-600||G/W 3.6 kg | 367 (W) x 307 (D) x 152 (H) mm
G/W 7.9 lbs | 14.4 (W) x 12.1 (D) x 6.0 (H) inches
|IDP-100||G/W 2.0 kg | 265 (W) x 185 (D) x 190 (H) mm
GW 4.4 lbs | 10.4 (W) x 7.3 (D) x 7.5 (H) inches
The Data Capture Software is an easy to use and flexible solution to collect measurement results from different KEM instruments (Refractometers, Density Meters, Potentiometric or Karl-Fischer Titrators, Thermal Conductivity Meters) on a Windows personal computer.
|Computer||Personal computer with Pentium II CPU of 233MHz or better|
|Operating system||Microsoft Windows 2000, XP,
Vista (Home Basic, Business), 7 (Home Premium, Professional)
|Other programs||Microsoft EXCEL 97 / 2000 / 2003 / 2007|
|RAM||at least 128 MB / 512 MB recommended|
|Hard disc space||10 MB required for installation|
|Display||Resolution higher than 640 * 480|
|Disk drive||CD-ROM or DVD-ROM|
|Interface||1 USB port
RS-232C D-sub (male) 9 pin required for each additional instrument
to be connected to the same computer.
Dot matrix ink printer for GLP compliance.
The ADP-611 substantially broadens the application spectrum of your Karl Fischer Titrator. With this evaporator accurate water determinations of samples which cannot be titrated directly can be performed:
The ADP-611 features a modern microprocessor control ensuring maximum precision, reliability and user-friendliness:
To safely avoid contamination from atmospheric moisture the ADP-611 is equipped with a remote controlled motor driven magnetic bar to move the sample from the sample chamber into the oven.
The heating chamber is equipped with an electrically conductive transparent heater glass. This permits the sample condition to be monitored during the vaporization process.
The ADP-611 comes with two built-in desiccant tubes for the carrier gas. With an optional air pump, air instead of nitrogen can be used as carrier gas.
|Technical Specifications ADP-611|
|Heating system||Electrically conductive transparent heating glass|
|Temperature control||Control method
Temperature measurement precision
50 … 300 °C
± 2 °C
|Display||Temperature or flow, LED, 3 digits|
|Heating tube||Pyrex® glass tube||30 (ø) x 335 (L) mm|
|Sample boat||Pyrex® glass
|68 (L) x 25 (W) x 15 (H) mm
|Carrier gas||Nitrogen (not included in supplied parts)
Air (air pump optional)
Gas flow rate
100 … 300 mL/min
|Gas dryer||Zeolite 100 g 2 pcs (500 g Zeolite included in supplied parts)|
|Interface||RS-232 9 pin male for communication with KF titrator|
|Ambient conditions||Temperature: 5 … 35°C
Humidity: < 85% RH
|Power||Supply (set in factory)
|100 … 120 V, 200 … 240 V AC, 50/60 Hz
|Dimensions||370 (W) x 195 (D) x 217 (H) mm|
|Weight||100 … 120 V version
200 … 240 V version
|approx. 5 kg
approx. 7 kg
The Automatic Piston Burette APB-610 can be used either as stand alone precision burette to perform manual titrations or as an additional external burette for KEM titration systems based on an AT-510, AT-610 or AT-700 Titrator. The APB-610 allows to meter liquids with highest accuracy even under difficult circumstances:
|Techical Specifications APB-610|
|Display||LCD 2 lines x 16 characters|
|Burette||20 mL, glass with brown safety cover
1, 5, 10 and 50 mL burettes available as option
|Burette precision||1 mL burette: ± 0.005 mL
5 mL burette: ± 0.01 mL
10 mL burette: ± 0.015 mL
20 mL burette: ± 0.02 mL
50 mL burette: ± 0.05 mL
|Dispense rate||Approx. 20 s for complete discharge|
|Valve||Automatic ceramic valve|
|Liquid contacted materials||PTFE, boron silicate glass, ceramic|
|Interface||RS-232C, mini DIN, 8 pin, female|
|Ambient conditions||Temperature: 5 … 35°C | Humidity: < 85% RH|
|Power supply||100 … 120 V, 200 … 240 V AC, 50/60 Hz|
|Power consumption||Approx. 20 W|
|Dimensions||120 (W) x 363 (D) x 610 (H) mm (including burette unit)|
|98-740-3011||Bent-type sampler for powders (1 … 1.5 mL)|
|98-740-3020||"C" bent-type sampler for powders|
|98-740-3025||Light weight sampler for powders|
|98-740-3026||Straight type light weight sampler|
|98-740-3030||Sampler for viscous products|
|98-740-3031||Sampler for highly viscous products|
|98-433-4013||Liquefied gas sampler with pressure vessel made of stainless steel (100 mL)|
|98-740-3013||Sampler for oils|
|98-740-3012||Spoon type sampler for viscous products|
|98-740-3024||Eggplant type sampler for powders|
|Syringe (5 mL)
Syringe (20 mL)
|98-433-3407||Stopper for syringe inlet port|