On a tight budget and looking for a reliable, easy-to-use volumetric Karl Fischer titrator? Then look no further than the Aquacounter/Hiranuma AQV-300 manufactured in Japan. State-of-the-art performance features let you measure moisture content from low to high concentrations quickly and accurately.

Measurements are simple and routine with unsurpassed precision.

Comes with training movie CD, plasticized Quick-Start guide for use in the lab, paper and pdf manual. Also included, complete accessories, download software and RS-232 cable.


  • Small footprint with integrated magnetic stirrer.
  • Function guide display allows simple operation.
  • Newly designed buret tip ensures precise titration.
  • Non-corrosive PBT (polybutylene terephthalate) resin body.
  • Two RS-232C ports for balance and PC.
  • Free software for downloading titration results to a laptop or PC; includes the correct RS-232 cable.
  • Competitive price.
  • Hundreds sold since being introduced to the North American market.


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Titration method

Volumetric Karl Fischer reagent titration method

Titration control method

Intermittent addition of titrant while approaching the end point.

(1) Control using a waiting interval timer of 1 - 99sec (INTERVAL). Titration stops when there is no change in the electrode potential during this interval.

(2) Control by titration timer. (T-TIMER: 1 - 99min.)

End point detection

DC polarization potential difference detection

Buret capacity


Reproducibility Å}0.01 mL (for full discharge, standard deviation for n=5)

Liquid contact material

PTFE, ceramic and glass

Number of burets


Display screen


2 lines, 16 digit LCD with backlighting

Display units

mL (min. display is 0.001mL), mg H2O, %, or ppm

Measuring range

10 ppm - 100%

Minimum volume of titrant addition

0.005mL or 0.01mL

Calculation function

Concentration, factor standardization, statistics, recalculation

Titration cell capacity


Minimum volume of solvent

Approx. 30mL

External input/output

Two RS-232C ports

Port 1 (HOST) for PC connection.

Port2 (BALANCE) for Balance connection.


Optional thermal and impact printer - please inquire

Power supply / Power consumption

AC100 - 240V, 50/60 Hz, 100 VA


310 (W) x 270 (D) x 300 (H) mm


Approx. 6kg

Safety approval

CE approved

AQUACOUNTER/HIRANUMA AQV-300 Volumetric Karl Fischer Titrator

Save $500

$6,490 $6,990

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