Hybrid Karl Fischer Moisture Titrator [MKH-700]
Hybrid Karl Fischer Moisture Titrator [MKH-700]
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 Titration |
| D1744 |
Standard Test Method for Determination of Water in Liquid Petroleum Products by Karl Fischer Reagent |
|
| D4928 |
Standard Test Method for Water In Crude Oils by Coulometric Karl Fischer Titration |
|
| D6304 | 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 titration |
|
| Measuring 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 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 | ||
| 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 Hybrid |
Up 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
Stirrer |
Approx. 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 | ||