This table summarizes the main specifications of the Elveflow OB1 MK4 pressure controller.
OB1 MK4
微流体流量和压力控制器
多通道压力和真空微流体控制系统 压力和真空控制
通过控制施加给流体的压力精确地控制流体的流速
流量控制
与流量传感器配对以实现精准的流量控制
压电调控
提供极为准确，快速的流量调节
自定义
可选择一至四条通道, 每条通道有五种压力范围可供选择
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Features & Benefits
尖端微流体流量控制器
不要让实验设备限制您的微流体实验！由科学家为科学家设计的多功能，强大的OB1 MK4压力控制系统可为各种实验提供完美的流量和压力控制。
无论您是需要压力还是真空，低流速还是高流速，短期实验还是长期实验，OB1 MK4都是您进行微流体研究的理想之选。
性价比高：压电技术
Elveflow的OB1 MK4是世界上唯一使用压电调节器的微流体流量控制系统，其流量控制的精确度是市场上其他流量控制器的20倍，速度快10倍。
可自定义&升级：1个模块，最多四个通道，5种压力范围
OB1 MK4可以按照任何您想要的方式进行配置和升级，每个模块最多可以有4个压力和/或真空通道（还可定制更多通道）。
配置流量传感器以达到最快的流量控制
您可以将流量传感器连接到OB1 MK4，从而控制微流控芯片中流体的流量。微流体系统持续地计算需要施加的压力，以维持所需的流速。
ESI操控软件和SDK库
单一、直观的ESI操控软件只需单击几下即可开始，并能进一步实现最复杂和长时间的实验自动化运行。SDK库允许您使用您自己的代码来控制OB1 MK4并且可连入第三方设备。
OEM版本
OB1 MK4可以在工作台上使用，也可以嵌入您自己的产品中。Elveflow能为您研发过程中的每个步骤提供相应的解决方案。探索我们的OB1 MK4 OEM方案。
精确的OB1 MK3+ 压力和流量控制系统可广泛应用于微流体，生物，物理，化学各个领域。
以下为应用范例：
- 微流体水滴生成 ：https://elveflow.com/microfluidic-products/microfluidics-application-packs/easy-droplet-generation/
- 器官芯片：https://elveflow.com/microfluidic-products/microfluidics-application-packs/organ-on-a-chip-pack/
- 长期细胞灌注 : https://elveflow.com/microfluidic-products/microfluidics-application-packs/perfusion-for-cells-and-biology/
- 液滴测序(Drop-seq): https://experiments.springernature.com/articles/10.1038/nprot.2016.154
等等，欢迎与我们联系以选取属于您的最佳设备。
| OB1 MK4 CHANNEL PRESSURE RANGE | 0 to 200 mbar1 (0 to 2.9 psi) |
0 to 2,000 mbar1 (0 to 29 psi) |
0 to 8,000 mbar1 (0 to 116 psi) |
-900 to 1,000 mbar1 (-13 to 14.5 psi) |
-900 to 6,000 mbar1 (-13 to 87 psi) |
|---|---|---|---|---|---|
| Pressure stability (2) | 0.015% FS 30 µbar (0.0004 psi) |
0.005% FS 100 µbar (0.0014 psi) |
0.006% FS 500 µbar (0.007 psi) |
-900 to 500 mbar: 0.005% FS 100 µbar (0.0014 psi) 500 to 1,000 mbar: 0.007% FS 150 µbar (0.0021 psi) |
-900 to 2,000 mbar: 0.005% FS 350 µbar (0.005 psi) 2,000 to 6,000 mbar: 0.007% FS 525 µbar (0.008 psi) |
| Response time (3) | down to 10 ms | ||||
| Settling time (4) | down to 50 ms | ||||
| Minimum pressure increment | 0.006% FS 12 µbar – 0.00017 psi |
0.006% FS 120 µbar – 0.0017 psi |
0.006% FS 480 µbar – 0.007 psi |
0.0064% FS 120 µbar – 0.0017 psi |
0.0061% FS 420 µbar – 0.006 psi |
| Pressure supply | 1.5 bar to 10 bar Non corrosive, non explosive, dry and oil-free gases, e.g., air, argon, N2, CO2, … |
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| Input vacuum (5) | / | / | / | Any value from -0.7 to -1 bar Compatible with vacuum pump or vacuum line |
Any value from -0.7 to -1 bar Compatible with vacuum pump or vacuum line |
| Liquid compatibility | Non contact pump Any aqueous, oil, or biological sample solution. |
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Non-contractual information, may be changed without notice
(1) Max pressure value might vary by +/- 2.5%
(2)Pressure stability (standard deviation) measured over the full pressure range with an external high accuracy pressure sensor (Druck DPI150)
(3) Time required to reach 5% of the setting point. Depends on the computer operating system
(4) Time required to reach 95% of the set point. Volume dependent – Measurement was done on 12 mL reservoir for a set point from 0 to 200 mbar
(5) A vacuum source is mandatory for calibration and use of dual channels even if the channels are to be used in pressure only
| Flow control | |||||
| Flow sensor compatibility | Compatible with the whole MFS and BFS range Monitoring and feedback loop flow control available |
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| Flow rates | From 0,1 µL/min to 500 mL/min (indicative, please refer to the MFS and BFS series) |
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| Liquid compatibility | Non-contact pump Any aqueous, oil, or biological sample solution. |
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| Control & monitoring | |||||
| Software control | Elveflow Smart Interface – Windows 7, 8, 10, both 32 and 64 bit versions supported | ||||
| Software Development Kit | Libraries available: Matlab, Python, LabView, C++ – Windows 7 & 10, both 32 & 64 bit versions supported Serial/UART communication protocol on request |
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| Data management | Possibility to log and extract data (CSV): channel and sensor detailed information using ESI | ||||
| Input profiles | Possibility to load profiles: ramp, sine, triangle, square, or custom | ||||
| Automation | Generate step-by-step sequences using the ESI built-in sequence management Log and export custom configurations (CSV) |
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| Screen | LCD screen showing pressure and sensor flow rate in real time | ||||
| Electrical Specifications | |||||
| Input Voltage (V) | 24V | ||||
| Typical Power (W) | 12W | ||||
| Provided Power Supply Specifications | Supply Voltage Range (V): 100 to 240 VAC Supply AC Frequency (Hz): 50 to 60 Hz Maximum Output Current (A): 1.5 A Maximum Output Power (W): 36W |
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| Interface | USB Type B | ||||
| Communication Type | Serial | ||||
| Software Control | ESI | ||||
| Sensor Connection | One M8 4-pins connector per channel | ||||
| Compatibility | Elveflow sensors: MFS, MPS, MFP, MBD Custom sensors: 5 to 24V supply voltage, 0 to 10V readout voltage |
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| Triggers | Input and Output TTL signal 0V or 5V | ||||
| Other | |||||
| Casing dimensions | (length x width x height): 240 x 223 x 80 mm | ||||
| Weight | 1.4 kg to 2.9 kg | ||||
Non-contractual information, may be changed without notice
ESI是Elveflow专用的软件控制界面，旨在改善实验人员的操作体验。从简单到高级设置再到工作流程自动化，它都可以完美实现。它集和多个模块，将耗时且繁琐的任务变得简单。它配备的SDK库，可允许您使用自己的代码控制Elveflow系统。
ESI控制窗口可实现：
- 视化每个通道的关键参数：
- 设置压力
- 输出压力
- 当传感器连接到OB1时可视化传感器输出结果（如以下屏幕快照所示，第一个通道上显示出流量传感器的输出结果）
- 设置任意压力或流量模式（预定义或自定义）
- 轻松切换到流量控制模式（传感器模式）
- 使用暂停/启动按钮预设每条通道上的参数并同时启动它们
- 借助音序器保存配置以节省时间或使您的工作流程自动化
- 打开图表以可视化并保存数据
- 启动专用模块来简化特定的实验任务
微流体流量控制中压力控制的优势
- 建立时间短 (小于40 ms)
- 流量平稳且无脉冲
- 可处理多达几升液体
- 可与流量计一起使用对流量和压力进行控制
想了解更多关于压力驱动型流量控制的信息，请阅读此应用贴士。
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