Keterangan
KF Coulometers
756/ 831 KF Coulometer
The Metrohm KF Coulometers are suitable for precise
water determinations in the trace range ( 1 ppm...10% ) .
They are available with two different types of generator
electrodes. The diaphragm-less generator electrode
requires only one reagent and is practically maintenance-
free. The use of the generator electrode with
diaphragm is preferred for the following applications:
very low water content ( 10% ) .
With or without printer – choose as you prefer! The
756 KF Coulometer is equipped with a built-in thermal
printer. However, just like the 831 KF Coulometer,
you can also connect an external printer or connect
the instrument to a PC, in which case you can choose
between the Metrodata Vesuv and tiamoâ„¢ software.
Our KF Coulometers come with a complete titration
cell and many accessories. KF Coulometers with the
diaphragm generator electrode are delivered with the
728 Magnetic Stirrer as part of the accessories.
The capabilities of the 831 KF Coulometer
General features and scope
Range of water contents 10 ¼ g ... 200 mg
Solid, liquid and gaseous samples
Number of ready-for-use methods 4
Number of user methods that can be stored Up to 100
Automation with 774 Oven Sample Processor
Determination
Automatic conditioning
Drift stop as endpoint criterion ( relative and absolute drift)
Drift determination
Real-time curve during titration
Autostart after sample introduction
Result calculation and output
Number of results per method 9
Statistics ( up to 20 determinations) Mean value, relative and absolute
standard deviation
Recalculation of results
Curve printout V-t, U-t, drift-t
Result storage
GLP functions
GLP-compliant documentation
Routine mode with restricted user rights
Titrator identification by its serial number
Validation and service intervals
GLP method for validating the KF Coulometer
Dialog languages
English, German, French, Spanish, Italian, Portuguese, Swedish
Interfaces
2 RS 232 connections for balance, printer or PC
« Remote» connection
Stirrer connection
Connection for 700 Dosino for automatic reagent exchange
Hardware
Backlit LCD
Separate keypad
Coulometric cell with 250 mL glass vessel
Double platinum electrode
Measuring input for polarized electrode
Generator electrode available with or without diaphragm
