Overview
  HK-664 TAN/TBN titrator conforms to the ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration and ASTM D2896 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration the apparatus is used in determining total acid and base number in petroleum products by potentiometric titration.

Features
Four electrodes can ensure to test TAN and TBN
Zero-dead volume solenoid valve,changing easily for PTFE burette. Ultrathin stirring device, adopt coil realize magnetic Stir.
Accuracy closed-loop control for volume.
High-accuracy burette accurate to 0.005mm.
LCD touch screen.
Wide operating voltage range 110~240V,

Technical parameters
Measurement range: pH:(0.00~14.00)pH;mV:(-1999.0~1999.0)mV;Temperature:(0.0~100.0)°C.
Resolution:pH :0.01pH;mV:0.1mV;Temperature: 0.1°C.
Electronic unit accuracy:pH :±0.01pH ±1 bit ;mV:±0.2mV±1 bit ;Temperature:±0.3°C±1 bit;
Sensitivity of controlling titration: ±2mV.
Repeatability of titration analysis: 0.2%.

Normal operating conditions:
a) ambient temperature: (5.0~35.0)°C;
b) relative humidity: ≤80%;
c) power supply: (100--240)V;frequency:(50/60)Hz;
d) Without disturbing by electron magnetic field except terrestrial magnetic field.