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Mettler Toledo™ C20S Compact Coulometric KF Titrators

Ideal for fast and precise water content determination with very simple operation. Mettler Toledo C20S Coulometric KF Titrators can analyze samples with water content between 1ppm and 5% in single measurements or as sample series with statistics.

Manufacturer:  Mettler Toledo™ 30252660

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Catalog No. 01-914-313

Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.



Karl Fischer Titration is the specific standard method for water content determination and gives accurate and precise results within minutes.
One Click™ User Interface
  • Large color touchscreen (VGA 5.7 in. color TFT, 640 x 480 pixel) with simple-to-understand and fast-to-operate One Click user interface
  • All users have their own homescreen with dedicated shortcut buttons (12 per user) to directly start specific routine tasks
  • User interface in English, German, French, Spanish, Italian, Chinese, Russian, Polish, Korean and Portuguese available
Diaphragmless Cell
  • Choice of a current generator cell with or without a diaphragm
  • Diaphragmless cell offers more convenience for most samples as there is no catholyte needed
  • Due to the unique design, the diaphragmless cell even meets the demands of very precise low water content determinations
Solvent Manager for Safe Handling
  • Protects users against contact with chemicals
  • Takes care of filling, draining and exchange of reagents
  • It is controlled by the titrator and full security is guaranteed by overflow protector in the waste bottle
PC software LabX™ Titration
  • Connectivity to LabX Titration PC software via USB or direct Ethernet (TCP/IP)
  • Full control over the titrator, secure database archiving, networking, efficient result management with control charts and individual search filters or rapid and clear method development for new applications
  • Complete traceability by providing user management, audit trail, method history and electronic signature
Flexible Data Export
  • Devices such as printers, memory sticks, USB hub or USB barcode readers can be connected via the USB port and are automatically recognized
  • Common USB printers (DIN-A4/US letter) or the USB-P25 compact printer for secure and GLP-compliant paper recording
  • Data Export: USB, Ethernet, PDF
  • Ethernet (TCP/IP): 1
  • COM (serial balance connection): 1
  • USB host (printer, memory stick, barcode reader, hub): 2
  • USB client (PC): 1
  • Integrated Magnetic Stirrer: 1
  • Pump/Stirrer: 1
Methods and Series
  • KF standard methods: 1
  • Max. number of user methods: 5
  • Number of method functions: 12
  • Number of samples per series: 120
  • Autostart: automatic start after sample addition: Yes
  • Max. number of calculations/results per method: 3
  • Statistics of up to 120 samples including result limits check, outlier test: Yes
  • Recalculation of results: Yes
  • Data in Online Screen: time, water count, potential, stirrer speed, consumption, drift: Yes
  • Data in measured value table: time, water count, potential, consumption, drift: Yes
  • Curves in Online Screen and printout: E-C, E-t, C-t, drift-t, water count-t: Yes
  • Liquid and gaseous samples
  • Resources and method database
  • Measurement Range: -2000 to +2000mV
  • Resolution/Limits of Error: 0.1mV/2mV
  • Polarization Current Range: 0 to 24μA
  • Polarization Current Resolution/Limits of Error: 0.1μA/1μA
  • Ambient Temperature: 5° to 40°C
  • Atmospheric Humidity: max. 80% at 31°C
  • Drift Measurement: Online, <2μg/min.
  • Measurement Range: 10μg to 200mg
  • Resolution: 0.1μg
  • Repeatability: 0.3% at >1mg water
  • Glass Beaker: 200mL
  • Dimensions (D x W x H): 34 x 21 x 31.2cm
  • Weight: 3.3kg


CE, ISO 9001, ISO 14001



Current generator cell without diaphragm
0.1mV/2mV; 0.1μA/1μA; 0.1μg
VGA 5.7 in. color TFT, 640 x 480 pixel
120 (per series)
5° to 40°C
0 to 24μA (Polarization Current Range)
Coulometric KF Titrator
Liquid and gaseous samples; Resources and method database
-2000 to +2000mV
CE, ISO 9001, ISO 14001