The customizable Binary Gradient Pumping System, part of the LS Class, is an advanced pumping system for two-solvent high-pressure gradient applications. The system is designed with two single-head positive displacement piston pumps integrated into a functional enclosure.
Equipped with belt drive pump mechanisms with shaped cam and electronic fast refill, the system produces very low pulsation. Fluid path materials are stainless steel and PEEK, with optional titanium. Available features include Prime-Purge Valves for each channel, Pulse Dampeners for reduced pulsation, pressure monitoring with integrated transducer, bulkhead outlet filters, an in-line, high-pressure, low-volume mixing chamber, and a drip tray with leak sensor.
The system comes equipped with the SSI Gradient Control Board, which has an integrated Software GUI for customizable method development and input. This allows for autonomous binary gradient formation without the need for continuous computer monitoring and control after downloading the method onto the control board. Serial commands may be used to directly set pump flow rates, start/pause, or monitor status. Additonal features of the Gradient Board include control of two solvent-selection valves, multiple timed events, and leak detection.
BLS CLASS 高压二元梯度输液恒流泵参数：
| 项目 | 参数 |
| 流速范围及压力* | 0.000 - 5.000 mL/min (6,000 psi) (5,000 psi PEEK) |
| 0.00 - 10.00 mL/min (6,000 psi) (5,000 psi PEEK） | |
| 0.0 - 40.00 mL/min (1,600 psi) | |
| 脉动** | ≤2%, 1 mL/min 及1,000 psi 检测 |
| 压力准确度 | ±2% 满量程 |
| 流量准确度 | 设置流速大于0.20 mL/min，20%异丙醇水，1000psi（5mL，10mL）检测， 小于2% |
| 设置流速大于0.80 mL/min，20%异丙醇水，1000psi（40mL）检测， 小于2% | |
| 流量精度 | 0.2% RSD |
| 液路材质 | （看上列选项）包括红宝石，蓝宝石，UHMWPE, PTFE,PFA |
| 尺寸 | 9" H x 10" W x 17" D (高22.9 x 宽25.4 x 长43.2 cm) |
| 重量 | 30 lbs. (13.6 kg) |
| 电源 | 100-240 Vac (± 10%), 50-60 Hz |
| 控制方式 | RS-232, Micro USB, Run/Stop, Analog (0-10V, 4-20mA) |
备注：* 与所使用溶剂和压力有关
** 带均速器的结果
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BLS CLASS 高压二元梯度输液恒流泵主要产品货号如下：
BLS010SFT1BDG
BLS010SFT1ADG
BLS010SFT1A
BLS005SFT1A