Alat Ukur Koehler K90375 Volumetric Karl Fischer Titrator

Test Method
Determines higher concentrations of water in a wide range of liquid and powder samples. Used for assessing water content in petroleum and
petrochemical products including oils, gasolines, solvents, and fluids as well as other products in the Pharmaceutical, Cosmetic, Automotive, Food/ Beverage and Agriculture industries.

Volumetric Karl Fischer Titrator
• Intuitive keypad and function guide display
• Automatic and periodic elimination of bubbles which can form in the liquid circuit
• Automatic drift monitoring and compensation
• Flexible-can be used with different reagent brands
• 2 x 5mL syringes- one for the KF reagent and the other for automatic dosing of standard for the titre ( second syringe can also be used for different factor reagent or special reagents for ketones, amines, etc.) Syringe volume dispensed in 40, 000 steps
• 2 x built in pumps- one for dispensing the solvent and other for emptying the vessel
• 2 x electrovalves- fitted to top of each syringe, control flow direction of solvent and reagents
• Automatic rest cycle ( stand-by mode) if not used for 15 minutes
• Programmable- several easy to use programs for titration and standardization
• Results expressed in ppm, mg/ l, % , etc.
• Connects to external PC keyboard for easy text and sample information data entry
• Connects to different types of printers, PC’ s and balances
• Data Logger- automatic data storage of last 55 analysis results

The AKF6000 Compact Volumetric Karl Fischer Titrator is a versatile instrument capable of conforming to a multitude of Standard Test Methods. This fully programmable titrator offers several easy to use programs for titration and standardization. 4 standardization methods can be selected by the user. The AKF6000 then determines the reagent factor and automatically stores it in the titration programs. The AKF6000 is equipped with 2 Peristaltic Pumps capable of automatically dispensing a required volume of solvent into the
titration vessel as well as emptying the contents of the vessel directly into a waste container. The built in Drift Monitoring System automatically determines the vessel drift after a titration has concluded. This drift value is then deducted from a later titration. The AKF6000 will prompt the user if the measured drift value is greater than the programmed limit value.

Specifications
Conforms to the specifications of:
ASTM D789, D803, D890, D1123, D1152, D1193, D1348, D1364, D1568, D1631, D2072, D2575, D3401, D4017, D4377, D4672, D5460, D5530, E180, E203
Non-volatile memory: Up to 10 titration programs, Clock/ calendar,
Header texts: 2 lines x 40 characters
Name of up to 4 operators
Program comments: 8 lines x 40 characters
Up to 55 results stored in Data Logger
Languages: English Spanish, French, Latin
Display: Graphic backlit LCD, 128 x 64 dots
Keypad: Membrane, 7 keys, guaranteed up to 6 million strokes per key
Material: PET with protective treatment
Measuring ranges: From 0.1 mg up to 100% water
Syringe volume: Standard syringe 5mL
Resolution: 1/ 40000 of syringe volume
Dispensing accuracy: ( as relative error) d0.2% for volumes higher than 10% of the syringe
Dispensing reproducibility: ± 0.1% for volumes higher than 10% of the syringe
Liquid contact materials: Syringe: borosilicate glass and PTFE
Electovalve: PTFE and KEL-F
Tubes: PTFE
Inputs and outputs: Polarized electrode, BNC connector
For external keyboard, miniDIN connector
RS232C bidirectional for PC or printer, telephone connector
RS232C for balance, telephone connector
Stirrer control: On/ Off and speed, RCA connector
Electrical Requirements: 90-264VAC, 47-63 Hz, 24V DC
Electrical safety: Meets EC, EN61010
EMC: Meets EC, EN 50081-2 and EN 50082-2
Permitted temperatures: Operating: 15-40° C
Storage: -10-50° C