Karl Fischer Volumetric Moisture Analyzer MKV-710B

The Karl Fischer Volumetric Moisture Analyzer is primarily used to determine the moisture content in products from industries such as petroleum, chemical, pharmaceutical, food, daily chemicals, and power. The basic principle of the Karl Fischer reaction is: in a non-aqueous solvent system, iodine, sulfur dioxide, and trace amounts of water react in a molar ratio of 1:1:1. The reaction equation is shown in Equation (1).
CH3OH+SO2+I2+H2O+3RN=[RNH]SO4CH3+2[RNH]I (1)
In the above reaction equation, CH3OH, SO2, I2, H2O, and RN represent methanol, sulfur dioxide, iodine, water, and organic base, respectively.
The main components of the instrument include: titration cell, burette, indicator electrode, stirring system (including stir bar), and control system. The moisture content of the sample can be calculated based on the titer and consumed volume of the Karl Fischer titrant, as well as the sample mass.

Main Features of Karl Fischer Volumetric Moisture Analyzer MKV-710B:

1. Compact and streamlined burette drive design, with a footprint of only A4 size.
2. Very simple operation; measurement can be performed by pressing only the PRE-TITR. and START keys.
3. Equipped with a 1/20,000 high-resolution burette, making it difficult for bubbles to adhere to the tube wall.
4. Measurement results can be stored on a USB drive, and PDF lab reports can be generated from the results.
5. Built-in one burette unit, expandable to two units without increasing space.
6. The burette unit can be quickly replaced and maintained, facilitating the use of different titrants.
7. By connecting with MCU-710, simultaneous measurement with a titrator and moisture analyzer is possible.

Technical Specifications of Karl Fischer Volumetric Moisture Analyzer MKV-710B:

Name and Model: Karl Fischer Moisture Analyzer MKV-710B.
Instrument Composition: MKV-710 + Solvent Exchange Unit (optional).
Measurement Method: Karl Fischer Volumetric Titration.
Measurement Range: 1) Moisture Content: 0.1～500mg H2O, 2) Moisture Concentration: 1ppm～100% H2O.
Burette Accuracy: Burette Volume: 10mL, Accuracy: ±0.015mL, Repeatability: ±0.005mL.
Endpoint Determination: Endpoint is determined when the polarization potential duration is within the set range; endpoint time: 1～99 seconds.
Titration Type: Forward Titration / Reverse Titration (requires purchase of a second burette unit).
Solvent Requirement: 30mL～100mL (S-type titration cup).
Measurement Methods: 20 measurement methods.
Input Settings: Keypad input.
Display: LCD display, supports six languages: Chinese/English/Japanese/Korean/Russian/Spanish.
Calculation: Concentration calculation, statistical calculation, automatic input of blank value and titer.
Data Storage: 100 sample results.
GLP Certification: Operator/User group management, titrant management, performance check, time management.
External Output: RS-232C (printer/balance/data software/Karl Fischer oven), USB (USB drive/thermal printer/keyboard/barcode reader/foot switch/USB hub/Android device), SS-BUS (APB).
Expansion Function: Second burette drive unit.
Operating Environment: Temperature: 5～35°C, Relative Humidity: Below 85% RH.
Power Supply: AC100～240V ±10%, 50Hz/60Hz.
Power Consumption: Main unit: approx. 20W, Printer: approx. 7W.
Dimensions: Titration Unit: 141(W)×296(D)×367(H)mm, Stirrer: 107(W)×206(D)×322(H)mm.
Weight: Titration Unit: approx. 4.0 kg, Stirrer: approx. 2.0 kg.