Acid Number Tester LAAT-A12

Acid Number Tester LAAT-A12 is automated and controlled by microprocessor unit. It offers 0 to 1800.0 mV potential measurement range and ≥0.05 mg KOH/g acid number measurement range. It works on potentiometric titration principle. Recording the titration of the electrode potential and the titration volume, find out the equivalence point and corresponding titrant volume, and thus obtained the sample pH value. This unit can accurately detect the acid value of transformer oil, turbine oil, anti-oil, diesel, gasoline and other petroleum products. It offers Standard Determination of acid number, Determination of acid number in transformer and turbine oils in service (BTB), ASTM D664-2011).

Graduated flask
Conical flask
Separatory funnel
Volumetric analysis
Automatic acid titration
Automatic potential control
Measurement range ≥0.05 mg KOH/g
Potential measurement range 0 to 1800.0 mV
Burette volume 10 mL
Minimum titration volume 0.001 ml
Burette precision ±0.1 %FS
Precision Fit or above the relative standards
Ambient temperature 5℃ to 35℃
Relative humidity Less 80 %
Temperature compensation
Preset adjustment range of end point
Preset controlling range for titration
Precision of titration tube
Test tube
Acidometer Full scale
Acidometer Accuracy
Heating power
Total power consumption
Power supply AC (220±11)V , 50±1 Hz
Dimension About 350 × 280 ×178 mm
Net weight Main unit 14 kg
  • Equipped with windows operating platform, with the computer directly
  • Designed with titration curve real-time display, titration curve and data storage and printing
  • Imported titration unit and measuring accuracy better stability
  • Automatic cleaning, automatic constant liquid
  • Offers automatic detection of end points, automatic filtering false end, at the same time can determine the endpoint of artificial selection
  • Designed with continued dosing function
  • It is easy to operate and adopts workstation

Acid Number Tester used in chemical industry, electric power, oil and other industries, it is ideal products to current meter acid number of petroleum products.

Graduated flask 100 ml,50 ml
Conical flask 100ml
Separatory funnel 250ml
Ambient temperature (-10 )°C to 35 °C
Ambient temperature ≤ 35 °C
Relative humidity ≤ 85 %
Precision of titration tube Scale division is 0.02 ml
Total power consumption ≤ 1200 W
Volumetric analysis Titration condensation: 0.1 N;<br> Controlling accuracy: ≤ ± 0.02 ml
Automatic acid titration Titration condensation: 0.1 N;<br> Controlling accuracy: ≤ ± 0.1 pH
Automatic potential control Titration condensation: 0.1 N;<br> Controlling accuracy: ≤ 10 mV
Ambient temperature 0 ~ 35 ℃
Temperature Range Ambient to 100°C
Temperature Precision ± 0.1°C
Air Flow 94 mL ± 5 mL/min, with flowmeters
Timing Unit 0 to 99 min 59 s, resolution 1 s
Refrigeration system New-type refrigeration compressor
Controlling temperature of cold trough Cold trough I: RT ~ (-51) °C, ± 1°; Cold trough II:RT ~ (-80) °C, ± 1 °C
Ambient temperature ≤ 30 ℃
Relative humidity ≤ 85 %
Ambient temperature (-10)℃ ~ 35 ℃
Relative humidity ≤ 85 %
Sample cup Inner diameter 31.0 ~ 32.0 mm
Sample cup Wall thickness 1.0 ~ 1.5 mm
Temperature controlling accuracy ± 0.5 ℃
Refrigeration system New-type refrigeration compressor
Cold trough Two holes in one trough, and same temperature
Ambient temperature ≤ 30 ℃
Potential measuring range (0 to ±1999.5) Mv
Intrinsic error 0.1 % ±0.5 mV
Input impedance Ri ≥1 × 1012 Ω
Burette capacity 10 mL
Power supply AC 220 V ± 5 % , 50Hz
Measurement range 0 ~ 75 kV
Voltage rising rate 3 kV ± 10 % / s
Distance between electrodes 2.5 mm
Power supply AC 220 V ± 10 %, 50 Hz
Temperature controlling range in water bath RT ~ 90 ℃ ± 5 ℃
Cooling bath temperature (-35) ℃ ± 1 ℃
Evaporation temperature 35 ℃ ± 1 ℃
Dimension 390 x 260 x 590 mm
Total power consumption ≤ 1200 W
Power supply AC 220 V ± 10 %, 50 Hz
Heating power of water bath 1000 W
Temperature measurement range 10 ~ 35 ℃
Repeatability error ≤ 0.2 % (Grade C)
Endured pressure in oxygen bomb 20 MPa
Operation environment temperature 15 ~ 28 ℃
Heat capacity 14000 ~ 15000 J / K
Temperature measurement range 10 ~ 35 ℃
Repeatability error ≤ 0.2 % (Grade C)
Endured pressure in oxygen bomb 20 MPa
Temperature controlling range 10 ℃ ~ 35 ℃
Temperature resolution 0.001 ℃
Mean value of heat capacity 15 kJ / K
Ambient temperature 20 ℃ ± 5 ℃