Koehler K90590 自动电位滴定仪 (±3200mV; ±0.1mV)

For determination of Total Acid Number (TAN), Total Base Number (TBN), Mercaptan Sulfur and Karl Fischer Water Content of petroleum products, lubricants and transformer insulating oils.


- Conforms to the Specifications of: ASTM D664, D2896, D3227, D4739

- Principle: Volume determination by equivalence point, end point or pH STAT

- Control: Microcontroller based

- mV range: ±3200 mV

- Accuracy: ±0.1mV (±0.0016pH)

- Amplifier input impedance: >10 ohms

- Burette resolution: 1/5000 for 5 ml, 1/10000 for 10 ml, 1/5000 for 25 ml.

- Filling time: Less than 20 seconds

- Keyboard: Alphanumeric splash waterproof polyester soft keys.

- Display: 40 x 2 line back lighted liquid crystal display (LCD).

Electrical requirements: 230V, 50Hz


- wxdxh,in.(cm): 12x16x16(30.48x40.64x40.64)

- System weight : 9Kg (19.84 lbs)

Additional accessories

- K90500-1 Karl Fischer Titrator Burette Assembly

- K90500-2 Filter Desiccant Dryer Tube

- K90500-3 Magnetic Stirrer with Holding Ring

- K90500-4 Magnetic Stirrer with Electrode Arm

- K90500-5 Vessel Heating / Cooling Accessory

- K90500-6 pH Checker




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