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COM-300A Potentiometric Titrator

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The Total Solution for All Your Titration Needs...

COM-300A Potentiometric TitratorLooking for a titrator that is reliable and simple to operate yet expandable and upgradeable? The COM-300A titrator from AQUACOUNTER® offers the total Solution - the features you asked for at a price you can afford.

Think youʼll need more later? No problem.

The COM-300A can be upgraded to fit your growing demands. Of course, weʼre also the leading manufacturer of other titration products youʼve come to depend on in your lab, such as Karl Fischer titrators. But, we have so much more to offer you than just great titrators -experience the Total Solution!



COM-300A POTENTIOMETRIC TITRATOR - the right features at the right price!

  • COM-300A with additional BuretPerforms pH, acid/base, complexometric, redox, Karl Fischer, non-aqueous titrations and ISE measurements
  • Determines TAN/TBN in oils and p and m alkalinity
  • Optional extra buret available
  • Choice of impact printer or thermal printer
  • Linked methods are available - up to three (3) per titration
  • One-touch calculations - including statistics package!
  • Over thirty (30) files of built-in method memory, including Karl Fischer
  • Built-in memory of up to 50 results or via external computer link
  • Balance and computer interfaces for GLP and ISO documentation
  • Very competitive price!


Thermal printer PR-2000T2 or PR-301
Dot impact printer PR-302
Extra buret B-130-20
Extra stirrer unit K-2000A2S
Photometric unit M-530
Karl Fischer titration kit KF-300



Titration process Potentiometric and Polarization (Karl Fischer)
Measuring range pH: 0 to 14, Resolution 0.01pH mV: -2000 to +2000 mV, Resolution 0.1 mV
Electrode inputs Indicator electrode : 1
Reference electrode : 1
Temperature electrode : 1
KF electrode : 1
Titration steps Up to three (3) steps
Number of endpoints Up to two (2) endpoints
Endpoint detection Automatic detection by:
-Inflection point
-Set point
-F Cross point
-B Cross point
Display system 2 lines, 16-digit LCD with backlighting
Display items Titration parameters, results, statistics
Display units pH, mV, mg H2O, %, ppm, M, g/L, mg/g, Fact 1, Fact 2
pH calibration 2 or 3 points (compliant to ASTM or other standard buffers)
File function 30 files for potentiometric titrations
3 files for Karl Fischer titrations
10 files for titration control methods
Calculation items Concentration, statistics
Memory 50 titration results along with titration curves and parameters and via external computer
Precautions against power failure Built-in backup battery
Buret capacity 20 mL, minimum drop size = 0.01 mL
Resolution = 1/16000 of buret volume
Stirrer Integrated, variable speed, magnetic stirrer
External input / output Balance interface and RS-232C data output
Dimensions 310 (W) x 270 (D) x 310 (H) mm
Weight 7 kg
Power supply / Power consumption AC100 - 240V, 50/60 Hz
Safety approval CE approved

How do I perform D664 Analysis with the COM-300A titrator?