Automatic titrators from Hiranuma use high-accuracy electrically-actuated burettes and end point detection based on electrochemical sensors, thus enabling high-accuracy measurements with no human errors.




  • All components are integrated in a small footprint of 31 cm (W) x 27 cm (D).
  • Saves valuable bench space.


  • Performs acid/base, redox, precipitation and complexometric titrations.
  • Combining optional KF kit, performs Karl Fischer moisture determination.
  • A wide selection of electrodes


  • 30 user defined methods plus 3 KF methods can be stored in memory and easily recalled according to samples.
  • Up to 50 results with titration curve can be stored with statistics calculation.


  • Equipped with two RS-232C ports for balance and computer connection.
  • Standard package includes AQUANet data download software, instruction movie, application guidebook and more.


Item Description
Titration method Standard:Potentiometric titration
Optional:Photometric titration, Volumetric Karl-Fischer titration
Measuring Range pH: 0 to 14, Resolution 0.01pH
mV: -2,000 to +2,000 mV, Resolution 0.1 mV
Electrode Inputs Indicator electrode: 1
Reference electrode: 1
Thermistor electrode: 1
Electrode for KF titration: 1
Titration steps Up to three(3) steps
Number of Endpoints Up to two(2) points
End point detection Automatic detection by:
-Inflection point
-Set point
-F cross point
-B cross point
Meas.(pH measurement)
Display 16-Digit x 2-Line LCD with backlighting
Display unit pH, mV, mL, mgH2, %, 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 function Concentration calculation, Statistics calculation
Memory data capacity 50 titration results along with titration curves and parameters and via external computer
Precautions against power failure Built-in backup battery
Electrodes (Standard component) · RE-201Z Glass electrode
· RE-201 Reference electrode
· TE-401 Thermistor electrode
Buret Capacity: 20mL, Minimum drop size: 0.005 mL
Reproducibility: within ±0.01 mL
Tubing PTFE tube of 2 mm(ID) and 3 mm(OD)
Switching Valve Automatic switching valve with ceramic joint.
Stirrer Integrated, variable speed, magnetic stirrer
Printers Optional impact printer; PR-302B
External input / output RS-232C; 2 ports
Port 1 (BALANCE):For connection to electronic balance.
Port 2 (HOST):For connection to external computer.
Power supply / Power consumption AC100 – 240 V, 50/60 Hz, 100 VA
Dimensions / Weight 310(W) × 270 (D) × 310 (H) mm
Approx. 7 kg


  • Dot Impact Printer PR-302B (Paper width: 58 mm)
  • Buret B-130
  • Stirrer K-2000A2S
  • Karl Fischer Titration Kit

*Generally a company name printing in this catalogue and a product name are a trademark of the company or registered trademarks.
*The product color may vary from the actual product due to printing qualities.
*Appearance, specification, etc. are subject to change for improvement without prior notice.

Note: For safe and appropriate use, please be sure to read the “Instruction Manual” before using the product.