Product Features LC-4000 high-voltage constant-current pump features l LC-4000 dual-piston high-pressure pump is a constant series reciprocating Heng Flow pump, high flow accuracy; l subdivision stepping motor control technology allows the motor to run at low speed Smooth and accurate, to improve the accuracy and repeatability of analytical results at low flow rates, effectively ensuring the high-pressure gradient system Under low flow systems and mobile phase composition stability; The key component installation guide l floating plunger rod, plunger rod and a selection of high-quality seals, etc. To ensure that the constant high pressure infusion pump long running stability and durability; l mobile phase compressibility factor correction and flow calibration accuracy dual function, depending on the solvent system differences Error compensation in flow velocity within ± 15% range, ensuring a high flow accuracy; l via RS-485 chromatography workstation external control can be easily obtained with high accuracy two yuan high-pressure gradient Of the system, while the mobile phase velocity gradient can be achieved to meet the various requirements of production and research; l Real-time pressure monitoring display, high pressure limit, low limit alarm function to ensure the safety of equipment used; l large flow flushing solvent substitution function, reducing the solvent displacement time, improve work efficiency; l with an OLED display module, friendly interface, easy and flexible operation. Performance analysis of LC-4000 pump technical indicators l Flow Range: 0.001mL / min ~ 10.000mL / min (step is set to 0.001mL / min) l Flow accuracy: ≤ ± 1% (1.000mL / min, 8.5MPa, water, room temperature) l Flow Stability: RSD≤0.25% l Maximum working pressure: 43MPa (0.001mL / min ~ 10.000mL / min) l pressure fluctuation: <0.1MPa (flow 1mL / min, pressure 5MPa ~ 10MPa) l Power: AC 110V / 220V, 50Hz / 60Hz l Power consumption: 100W l Dimensions (L × W × H): 260mm × 360mm × 170mm / 10.0kg LC-4000 variable wavelength UV / visible spectrophotometric detector Instrument features l advanced optical cell design; Detector optical system into the new design ideas. As we know, the UV detector principle is Based on the Lambert - Beer law, so we focus on the improvement of the optical path above the road and so the sample is located The reference light path of light for maximum battery power. SEV UV501 detector is designed with today's most advanced technology Surgery for the pilot, through digital data processing and control, so that baseline noise and drift down to a new Limit. As a result of the digital output function, the detector can be connected to a computer via serial port directly Without the need for any of the data acquisition unit. Wherein, I1 is the sample path light intensity, I0 is the intensity of the reference light path, ε is the molar extinction coefficient, L is the flow Cell path. Technical Parameters Wavelength range: 170nm ~ 900nm Wavelength repeatability: ± 0.1nm Wavelength accuracy: ± 1nm Band width: 6nm Baseline noise ≤2 × 10-5AU (methanol, 1ml / min, 254nm, 20 ℃) Baseline drift ≤4 × 10-4AU / hr (methanol, 1ml / min, settling time 60min, 254nm, 20 ℃) Baseline noise ≤0.5 × 10-5AU (empty pool, response time 1 second, 20 ℃) Baseline drift ≤0.5 × 10-4AU / hr (empty pool, 1 second response time, settling time 60min, 20 ℃) The minimum detectable concentration ≤1 × 10-9g / ml (naphthalene / methanol solution Flow cell volume: 10μL Optical path: 5mm Source: Deuterium lamp Power: AC 110V / 220V, 50Hz / 60Hz Power consumption: 100W Dimensions (L × W × H): 260mm × 360mm × 170mm / 10.0kg
Product Features LC-4000 high-voltage constant-current pump features l LC-4000 dual-piston high-pressure pump is a constant series reciprocating Heng Flow pump, high flow accuracy; l subdivision stepping motor control technology allows the motor to run at low speed Smooth and accurate, to improve the accuracy and repeatability of analytical results at low flow rates, effectively ensuring the high-pressure gradient system Under low flow systems and mobile phase composition stability; The key component installation guide l floating plunger rod, plunger rod and a selection of high-quality seals, etc. To ensure that the constant high pressure infusion pump long running stability and durability; l mobile phase compressibility factor correction and flow calibration accuracy dual function, depending on the solvent system differences Error compensation in flow velocity within ± 15% range, ensuring a high flow accuracy; l via RS-485 chromatography workstation external control can be easily obtained with high accuracy two yuan high-pressure gradient Of the system, while the mobile phase velocity gradient can be achieved to meet the various requirements of production and research; l Real-time pressure monitoring display, high pressure limit, low limit alarm function to ensure the safety of equipment used; l large flow flushing solvent substitution function, reducing the solvent displacement time, improve work efficiency; l with an OLED display module, friendly interface, easy and flexible operation. Performance analysis of LC-4000 pump technical indicators l Flow Range: 0.001mL / min ~ 10.000mL / min (step is set to 0.001mL / min) l Flow accuracy: ≤ ± 1% (1.000mL / min, 8.5MPa, water, room temperature) l Flow Stability: RSD≤0.25% l Maximum working pressure: 43MPa (0.001mL / min ~ 10.000mL / min) l pressure fluctuation: <0.1MPa (flow 1mL / min, pressure 5MPa ~ 10MPa) l Power: AC 110V / 220V, 50Hz / 60Hz l Power consumption: 100W l Dimensions (L × W × H): 260mm × 360mm × 170mm / 10.0kg LC-4000 variable wavelength UV / visible spectrophotometric detector
