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Elveflow OB1 Mk4 Microfluidic Flow Controller

This is our best pressure/vacuum controller: the Elveflow OB1 MK4. Embedding the state-of-the-art technology for flow control from -900 mbar to 8 bar, this controller is 20 times more precise and 10 times faster than the other flow controllers on the market.
According to your needs, it can be equipped with up to 4 channels for pressure and/or vaccum, and comes with the tubing, fittings and reservoirs necessary to perform your experiment straight after unpacking. An optional flow sensor can be added.
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General

Features & Benefits

Achieve Enhanced Precision

  • 20x More Precise: Achieve unparalleled accuracy in your experiments, surpassing traditional flow controllers.
  • 10x Faster Response: Witness rapid flow changes with minimal delay, thanks to advanced Piezo technology.
  • Pulsation-Free Flow: Ensure consistent and reliable fluid delivery, eliminating unwanted fluctuations.

Perfect for Microfluidic Innovation

  • Specifically engineered for microfluidic research, the OB1 MK4 excels in demanding applications.
  • Experience blazing-fast flow changes directly within your microdevices.

Versatile and Adaptable

  • Configurable Channels: Pair each channel with Microfluidic Thermal Flow Sensors (MFS) or Coriolis Flow Sensors (BFS) for precise flow rate control of both liquids and gases.
  • Wide Pressure Range: Offers multiple pressure ranges to suit diverse experimental needs (see specifications below).

Intuitive Software and Seamless Integration

  • Elveflow OB1 Software: Control your experiments with ease using the intuitive software interface.
  • Sequencer Functionality: Design complex experimental sequences with the powerful Sequencer tool.
  • Data Logging: Record data at up to 100Hz and export for further analysis.
  • Broad Compatibility: UART communication enables integration with various control systems, including Mac, Linux, Arduino, and PLCs.
  • ESI Software and SDK: Access software and development tools for custom applications.

Reliability and Support

  • Backed by a 2-year warranty for peace of mind.

Advantages of Pressure control in microfluidics

Content

1x Pressure controller

1x Power supply

1x User manual

1x USB-key loaded with ESI software

Specifications

Pressure Channels Specifications

Channel type 1 2 3 4 5
Pressure range (mbar) 0 to 200 mbar 0 to 2 bar 0 to 8 bar -900 mbar to 1 bar -900 mbar to 6 bar
Pressure range (psi) 0 - 2.9 psi 0 to 29 psi 0 to 116 psi -13 to 14.5 psi -13 to 87 psi
Pressure stability (Full Scale)
0.015 %
0.005 %
0.006 %
-900 to 500 mbar 500 to 1000 mbar -900 to 2000 mbar 2000 to 6000 mbar
0.005 % 0.007 % 0.005 % 0.007 %
Pressure stability 30 µbar / 0.0004 psi 100 µbar / 0.0014 psi 500 µbar / 0.007 psi 100 µbar / 0.0014 psi 150 µbar / 0.0021 psi 350 µbar / 0.05 psi 525 µbar / 0.076 psi
Response time down to 10 ms
Settling time down to 50 ms
Minimum pressure increment 12 µbar - 0.00017 psi 120 µbar - 0.0017 psi 480 µbar - 0.007 psi 120 µbar - 0.0017 psi 420 µbar - 0.006 psi
Pressure supply Max pressure + 0.5 bar and up to 10 bar
Non corrosive, non explosive, dry and oil-free gases, e.g. air, argon, N2, CO2, ...
Input vacuum / 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.

Please note that the max pressure value might vary by +/- 2.5%.

Instrument Specifications

Flow sensor compatibility Compatible with the whole MFS and BFS range
Monitoring and feedback loop flow control available
Flow rates From 0,1 µL/min to 500 mL/min
(indicative, please refer to the MFS and BFS series)
Liquid Compatibility Non contact pump
Any aqueous, oil, or biological sample solution.
Software control Elveflow Smart Interface
Windows 7, 8 and 10, both 32 and 64 bit versions supported
Software
Development Kit
Librairies available: Matlab, Python, Labview, C++
Windows 7, 8 and 10, both 32 and 64 bit versions supported
Serial/UART communication protocol on request
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 sequencer
Load and save custom configurations (.csv)
Screen LCD screen showing pressure and sensor from the channel
USB connection USB B
Sensor connection One M8-4 pins connecter available per channel
Compatible with Elveflow sensors: MFS, MPS, MFP, MBD
Custom analog sensor supply: 5-24 V
Custom analog sensor readout : 0-10 V
TTL trigger In and out available
0-5 V
Power consumption 12 W (100 V to 240 V – 50 Hz to 60 Hz)
Casing dimensions (5) 240 x 223 x 80 mm
Weight 1.4 kg to 2.9 kg

Your Question Answered

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Darwin Microfluidics being based in France, ships orders under Delivered At Place (DAP) incoterms. This means that for customers outside the European Union (EU), you are responsible for any applicable customs fees, duties, and taxes in addition to the shipping costs. These charges are determined by your local customs authority and must be paid by you upon the arrival of the shipment in your country.

We recommend contacting your local customs office for detailed information on these charges if you're ordering from outside the EU, as they can vary depending on the destination and the value of your order. Please note that these additional costs are not included in the shipping fees charged by Darwin Microfluidics.

If you've received your order from Darwin Microfluidics and found that a product is defective or missing, please follow these steps to resolve the issue:

Report immediately: Contact our customer service team as soon as possible. Reporting the issue promptly helps us address your concern more efficiently.

Provide details: When you contact us, please provide your order number, the name the order was placed under, and a detailed description of the issue. For defective products, include clear photos or a video that shows the defect.

Review: Our team will review your claim to determine the best course of action. We may ask for additional information or details about the problem.

Resolution: Depending on the situation, we may send a replacement for the defective or missing item, provide a refund, or offer another satisfactory resolution. Our goal is to ensure you are completely satisfied with your purchase.

Follow-up: We will keep you updated throughout the process and confirm when the issue has been resolved to your satisfaction.

We apologize for any inconvenience caused by a defective or missing item and are committed to resolving your issue as quickly and smoothly as possible.

At Darwin Microfluidics, our goal is to offer the most competitive prices directly as our list price, ensuring that all our customers receive great value without needing to navigate complex discount structures. Here’s a detailed look at our discount policy:

Competitive list prices: We work hard to ensure our list prices are among the most competitive in the market. This approach allows us to offer fair pricing to all our customers from the start, eliminating the need for frequent discounts.

Quantity-based discounts: For certain products, we offer quantity-based discounts directly on the product pages. These discounts are automatically applied based on the quantity of the product you purchase, providing savings for bulk purchases without the need for special codes or negotiations.

Bulk orders: While we strive to offer the best prices upfront, we understand that customers making large-scale purchases may have special considerations. In such cases, we invite you to discuss your needs with our sales team. Depending on the size and nature of your order, we may be able to offer tailored discounts or pricing adjustments.

We believe in transparency and simplicity in pricing, allowing you to make your purchases with confidence, knowing you're receiving a fair deal without the hassle of negotiating discounts. If you have any questions about pricing or discounts for bulk orders, please don't hesitate to reach out to our sales team for personalized assistance.

Please follow our returns & refund page.

Since Darwin Microfluidics sells exclusively to companies and institutions and is based in France, the VAT treatment for your orders depends on the location of your company or institution:

Within the EU (excluding France): For customers in other EU countries, the reverse charge mechanism applies. This means that VAT is not charged by us at the point of sale. Instead, it is your responsibility to account for the VAT at the standard rate applicable in your country under the reverse charge procedure. This process helps simplify cross-border transactions within the EU.

In France: For customers located in France, standard French VAT rates apply to all purchases. As a France-based company, we are required to charge VAT on sales to other French companies and institutions, which you can then reclaim according to local VAT procedures if applicable.

Outside the EU: For customers outside the European Union, sales are not subject to VAT by us. However, you may be subject to import duties, taxes, and charges that are not included in the item price or shipping cost. These charges are the buyer's responsibility and vary by country. We advise checking with your local customs office for more information.

Please ensure your VAT identification number is provided during the ordering process for EU transactions to qualify for the reverse charge mechanism. If you have any questions regarding VAT charges or need further assistance with VAT-related issues, please contact our customer service team.

We are unable to provide specific estimates for customs fees, duties, or taxes associated with your order. These charges are determined by the customs authority in your country and can vary based on a variety of factors, including the type of items purchased, their value, and the country to which they are being shipped.

We recommend contacting your local customs office directly to get the most accurate and up-to-date information regarding potential customs charges for your order. They can provide you with detailed guidelines on the fees you might expect to pay based on the products you're importing from us.

Please remember, these charges are the responsibility of the recipient and are not included in the shipping costs paid to Darwin Microfluidics.

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OB1 Mk4 pressure controller with LCD screen and 4 channels front view
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SKU: LVF-OB1-4-2250
0 - 2000 mbar
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OB1 Mk4 pressure controller with LCD screen and 4 channels front view
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SKU: LVF-OB1-4-2224
0 - 2000 mbar
0 - 2000 mbar
0 - 2000 mbar
-900 - 1000 mbar
£10,930.15
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OB1 Mk4 pressure controller with LCD screen and 4 channels front view
Elveflow OB1 Mk4 Microfluidic Flow Controller
SKU: LVF-OB1-4-2225
0 - 2000 mbar
0 - 2000 mbar
0 - 2000 mbar
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£10,930.15
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