Convenient and easy-to-use flow and pressure calibration functions ensure high precision and stability of the instrument.

The static motor control circuit designed using independent technology achieves automatic feedback and tracking of motor control signals, effectively improving motor control accuracy and ensuring the reliability and stability of the pump.

Two gradient running program designs are available: linear gradient and step gradient.

Programmable solvents and compression factors that can be automatically compensated.

Pump form: Double plunger reciprocating series or parallel.

Pressure issues are one of the common faults in liquid chromatographs, which may manifest as high or low pressure, or significant pressure fluctuations.

High pressure: may be caused by blockage of chromatography or protection columns, blockage of online filters or pipelines, high viscosity of mobile phase or insufficient degassing, malfunction of proportional valve or blockage of mixer. The solution includes gradually identifying the blockage location, disconnecting the chromatography column to observe pressure changes, backwashing the chromatography column with a suitable solvent, replacing the online filter plate, and ensuring that the mobile phase is filtered and degassed.

Low or fluctuating pressure: usually related to system leakage (such as loose joints, worn pump seals), bubbles or insufficient mobile phase in the pump head, contamination or damage to the one-way valve. The pipeline joints should be checked and tightened, worn sealing rings should be replaced, the infusion pump should be filled to eliminate bubbles, and the one-way valve should be cleaned or replaced by ultrasonic cleaning.