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Hybrid Karl Fischer Moisture Titrator
MKH-700
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Hybrid Karl Fischer Moisture Titrator MKH-700 has the world's first & convenient functions equipped such as high-speed & high-precision measurement by "Hybrid titration method" which uses both "Volumetric titration method" and "Coulometric titration method", and "Electrolytic Factor Measurement System" which does not require pure water for factor determination.
Karl Fischer Moisture Titrator which is on the market is necessary to adjust the sample amount when carrying out the measurement.
"Hybrid titration method" automatically switches between the parallel measurement by "Volumetric titration method" and "Coulometric titration method" by monitoring moisture content in titration cell with high-speed & high-precision measurement, therefore can measure without adjusting the sample amount.
With just pressing one button, the "Electrolytic Factor Measurement System" automatically performs the factor determination of Karl Fischer reagent, and save the time & work without using pure water.Features
1) "Hybrid titration method"
According to "Hybrid titration method", even if the water content of the sample is high, it can be carried out with high-speed & high-precision measurement.
2) Easy factor determination by "Electrolytic Factor Measurement System"
According to "Hybrid titration method", even if the water content of the sample is high, it can be carried out with high-speed & high-precision measurement.
3) Unique integrated "Hybrid titration cell" of both "Volumetric titration method" & "Coulometric titration method"
While ensuring the seal, making the titration cell and titration cell stopper separate, it improves the convenience for usage.
4) Unique replaceable diaphragm inner burette
To make the inner burette and diaphragm separate, although after measuring such as petroleum samples, it is easy to clean the diaphragm inner burette.
5) One unit with three Karl Fischer titration method
It is possible to select one method from "Volumetric titration method", "Coulometric titration method", and "Hybrid titration method".
6) Equipped with USB flash port for data transfer
It is possible to store the measurement result, method and manage the data as an electronic record.
Application
Standards Number Details ASTM D1533 Standard Test Method for Water in Insulating Liquids
by Coulometric Karl Fischer TitrationD1744 Standard Test Method for Determination of Water
in Liquid Petroleum Products by Karl Fischer ReagentD4928 Standard Test Method for Water In Crude Oils
by Coulometric Karl Fischer TitrationD6304 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration E203 Test Method for Water Using Volumetric Karl Fischer Titration ISO 760 Determination of water – Karl Fischer method
(General method)Specification
Type Hybrid Karl Fischer Moisture Titrator Model MKH-700 Coulometric titration Measuring method Karl Fischer Coulometric titration Measuring range Water content 10μg - 300mg H2O Precision RSD less than 0.3% (n=10) Display resolution 0.1μg Control method Constant current pulse time control Endpoint detection Alternate current polarization method with a twin Platinum electrode EP sense method Selective drift stability or Limit measurement time Titration form Normal titration/Back titration Titration cell Two component cell Required reagent Anolyte 100mL Catholyte 5mL Volumetric titration Measuring method Karl Fischer Volumetric titration Measuring range Water content 100μg - 500mg H2O (depends on KF reagent factor) Concentration 1ppm - 100% H2O Burette precision Volume 10mL Resolution 1/20,000 Discharge precision ±0.015mL Repeatability ±0.005mL Endpoint detection By polarized potential level detected with a twin Platinum electrode EP sense method Detection of potential level maintained during End preset time.
End time range : 1 - 99s.Titration form Normal titration/Back titration
Add the optional additional burette unit.Required solvent 50 - 150mL Hybrid titration Measuring method Karl Fischer Coulometric titration
Karl Fischer Volumetric titrationMeasuring range Water content 10μg - 500mg H2O Precision RSD less than 0.3% (n=10)
(Karl Fischer reagent factor 3mg/mL)Display resolution 0.1μg Control method Automatic continuous titration
Constant current pulse time controlEndpoint detection Alternate current polarization method with a twin Platinum electrode EP sense method Selective drift stability or Limit measurement time Titration form Normal titration Required reagent Anolyte 100mL Catholyte 5mL Factor measurement of reagent by electrolysis Measuring method Factor measurement of reagent by electrolysis Measuring range KF reagent Reagent factor from 1 to 5
(With the provisions of dose volume)Precision RSD less than 1.0% (n=3)
(Dose volume 0.5mL, Reagent factor 3mg/mL)Control method Constant potential control Endpoint detection Alternate current polarization method with a twin Platinum electrode EP sense method Drift stability Required reagent Anolyte 100mL Catholyte 5mL Number of methods Coulometric/ Volumetric
HybridUp to 50 Factor measurement 1 Data storage On-board memory 300 data External memory Memory card (Compact Flash), USB flash GLP conformance Yes External I/O
(Measuring unit)RS-232C 1ch (for Multiple sample changer/ Evaporator) SS-BUS 1ch (for APB) 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 flash) K-NET 2ch (Measuring unit) Main control unit 8-inch LCD (163.2 x 122.4mm) 256 colors 800 x 600 dots Language English / Japanese Ambient conditions Temperature 5 - 35°C Humidity 85%RH or below (no condensation) Power supply Measuring unit DC24V 5A (Main unit)
AC100-240V ±10% 50-60Hz 2A (Comes with AC Adapter)Main control unit DC12V 3A (Main unit)
AC100-240V ±10% 50-60Hz (Comes with AC Adapter)
Power consumption
Measuring unit
StirrerApprox. 80W Main control unit Approx. 20W 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) mm (not incl. tubing) Weight Measuring unit Approx. 4.5kg Main control unit Approx. 2.0kg Stirrer/Cell Approx. 1.4kg dispenser Approx. 0.6kg CE marking Conforming to EN61326, EN61010-1, RoHS compliant
