1.1 Instrument description
The instrument of Coulometric Karl Fischer titrators is an used for Coulometric water determination according to Karl Fischer. The instrument is designed for usage as a titrator in analytical laboratories.Its main application field is volumetric titration.
The present instrument is suitable for processing chemicals and flammable samples. The usage of this titrators therefore requires that the user has basic knowledge and experience in the handling of toxic and caustic substances. Knowledge with respect to the application of the fire prevention measures prescribed for laboratories is also mandatory.
2 Technical specifications
2.1 Modes Coulometric KF titration with automatic blank deduction
Endpoint indication Voltametric, AC indication
Iodine production Pulse with variable current strength and length
Current at the generator electrode: 400 mA
Titration speed max. 2.4 mg H2O/min
Determination range 10 ug to 100 mg H2O
Resolution 0.1 ug H2O
Reproducibility Sample: Reagent manufacturer's standard.
With 10 ug...1000 ug H2O: ± 2 ug
With >1000 ug H2O: 0.2% or better
Drift compensation automatic
Display Graphical LCD, 320x 240 dots, LED back-lit
Printer Built-in thermal printer, Paper width 57 mm
Memory Data storage 200 results
2.2 Ambient temperature
Nom. operation range 5 ... 40 °C
Storage – 20 ... 60 °C
Transport – 40 ... 60 °C
2.3 Mains connection
Voltage 220 V ± 10 % 50 Hz
110 V ± 10 % 60 Hz
Power consumption max. 40 W
2.4 Dimensions
Material of housing PVC
Material of display Glass(LCD)
Width 300 mm
Height 300 mm
Depth 220 mm
Weight 4kg
3.1 Coulometer Part
1 Keypad
2 Display
3 Titration vessel
4 Connection for power
5 Fuse for power
6 Switch for 110v / 220v
7 RS232 interface
8 Connection of generator electrode
9 Connection of indicator electrode
10 Titration vessel bracket
11 Power switch
12 Stirrer adjust
13 Printer
