The P1100 High-Pressure Constant-Current Pump is a cost-effective product developed based on proven experience, featuring the following core characteristics:
Low Pulsation and High Stability: It adopts a dual-plunger series reciprocating pump structure with a small cam driving a short-stroke plunger, significantly reducing fluid pulsation and eliminating the need for traditional buffers, resulting in a more streamlined system. Coupled with a floating guide plunger and carefully selected key components, it ensures long-term operational stability and durability.
Precision flow control: Integrated dual correction functions for mobile phase compression coefficient and flow rate accuracy, compensating for solvent system variations within ±15% to ensure ultra-high flow accuracy across the entire range.
Intelligent and user-friendly interaction: Supports external control via RS485 interface from a chromatography workstation, enabling high-precision binary high-pressure gradient analysis and flow rate-time programming with ease. Equipped with a VFD vacuum digital display window and intuitive front panel buttons, the human-machine interface is user-friendly and operationally flexible.
Comprehensive safety and maintenance features: Equipped with real-time pressure monitoring and high/low pressure limit alarm functions; provides high-flow flushing (8 mL/min) for rapid solvent replacement and bubble elimination, enhancing work efficiency and safety.
Flow rate range: 0.001-10.000 mL/min.
Maximum operating pressure: 42 MPa (0.001-5.000 mL/min); 20 MPa (5.001-10.000 mL/min).
Pump sealing: Pressure drop not exceeding 1.5 MPa within 10 minutes at 40 MPa.
Communication method: RS485 interface.
Power supply: AC 220V (±10%), 50Hz.
Power consumption: 80W.
Dimensions: 420mm (length) × 260mm (width) × 160mm (height).
The P1100 High-Pressure Constant-Current Pump, as the core infusion unit of high-performance liquid chromatography (HPLC) systems, provides precise, stable, and continuous delivery of mobile phases. It can be used as an independent delivery tool or conveniently integrated with modules such as UV detectors, autosamplers, and column temperature chambers to establish a complete analytical system. Through workstation control, it enables complex binary high-pressure gradient analysis, meeting various scientific and production requirements ranging from routine quality control to method development. Its outstanding flow accuracy, low pulsation characteristics, and solvent-specific calibration capabilities ensure high reproducibility and reliability of chromatographic analysis results, making it highly suitable for widespread applications in pharmaceuticals, biochemistry, environmental protection, quality control, and related fields.