AccuFlux® Integrity Tester

Automated integrity test instrument.

Consistent with Meissner’s commitment to developing smart products that bolster quality, reduce risk and provide a second to none customer experience, the AccuFlux® integrity test system is engineered to combine the highest levels of instrument accuracy, robustness, and ease of use. In an era where importance of quality and accuracy often takes a back seat to reducing cost, the AccuFlux® stays true to its purpose of sacrificing nothing; providing assurance that each test performed is being done so in a way that only a company with over 30 years of filtration expertise can provide.

The AccuFlux® is a testament to Meissner’s commitment to vertical integration. Key among the design of this system is a 15″ color, multi-touch user interface which serves as a window into the intuitive and easy to use nature of the system. The AccuFlux® features a recipe driven test setup which allows a user to be performing tests within seconds of powering on the device. Once powered up, the user logs directly into the test screen where a test recipe can be selected. After reviewing conveniently displayed test data, the user can start the test with the press of a button. While the test is being performed, all test settings and data are being stored to up to three (3) locations. Upon completion of a test, the user must acknowledge the result, at which point a test report is generated and saved to a .PDF file. These files as well as the test data can also be viewed from the system’s History screen. Setup of recipes is made simple by providing data for all supported Meissner filters. The system is compatible with filters from other manufacturers, although this data must be entered manually. Test data entry and recipe setup is limited to users of specified permission level. A portion of what makes the system CFR 21, Part 11 compliant is its multi-tiered user administration system which requires all users to have a unique, individual username and password. The user experience and usability of the system is also enhanced with various features listed below:

Preinstalled filter data for Meissner filters

Icon Cyan Check

Built in self checks and tests, such as internal/external leak test and source pressure check

Built in sensor calibration utility

Icon Cyan Check

Auto-generated detailed PDF test certificate

Editable test data for adding non-Meissner filter

Icon Cyan Check

Multiple save locations, including network locations and USB devices

CFR 21 Part 11 Compliant

Icon Cyan Check

Live test data stored to .CSV file

Recipe storage system for storing filter data, system data and test setups

Icon Cyan Check

Tiered user system including unique user login accounts

What’s Under the Hood

When designing the AccuFlux®, quality and performance were the number one priority. The result is a system comprised of up to three (3) highly accurate mass flow meters, providing the greatest level of accuracy at all points throughout the standard 0-250 mL/min flow range. The high level of flow control built into the system allows the diffusive flow tests to be performed in less than 3 minutes, without sacrificing accuracy, and on systems containing as many as three 40″ filter elements. Bubble point tests are performed using a highly accurate pressure sensor and utilize Meissner’s TransVector™ algorithm, completing bubble points tests in as little as 90 seconds.

AccuFlux® employs a Quad core, Windows 10 industrial PC with integrated 15″ full color, multi-touch screen. The use of a powerful PC is a must when running today’s anti-virus software, and also yields great benefits when it comes to integrating the system with a network, using standard Windows based accessories or applications, and connecting the system to other network devices and printers. Some of the features that allow the AccuFlux® to perform at such a high level are:

Windows 10 Full Function Industrial PC

Icon Cyan Check

Three highly accurate mass flow meters

Availability of Factory Calibration Services

Icon Cyan Check

15″ Full Color Multi-Touch User Interface

High Accuracy Pressure Sensor

Icon Cyan Check

Keyed and Color Coded Process Connections

Windows Printer, Device and Accessory Compatibility

Icon Cyan Check

Integrated Calibration Functionality

Unitized Manifold Design

Icon Cyan Check

Standard Network Security and Virus Protection Protocol Compatibility


Operating System

  • Windows 10


  • B&R Industrial PC
  • 1.91 GHz, Quad Core Processor
  • 8 GB Ram
  • 128 GB Storage

User Interface

  • 15.6″ Color Multi-touch Display
  • Touch Type: Projected Capacitive
  • Resolution: 1920 x 1080 Full HD


  • 2.0 USB x3
  • 3.0 USB x1
  • 24 VDC, 5A Power Output
  • RJ45, Ethernet
  • WLAN (Optional)
  • Bluetooth (Optional)

Standard Sensor Range

  • Low Flow: 0 – 8 mL/min
  • Med Flow: 0 – 40 mL/min
  • High Flow: 0 – 250 mL/min
  • Pressure: 0 – 100 PSIG

Sensor Accuracy

  • Flow Meters: ±0.5% Rd ±0.1% FS
  • Pressure Sensor: ±0.15 PSI (±0.15% FS)

Functional Tests

  • Printer Test
  • Network Test
  • Internal Leak Test
  • External Leak Test
  • Source Pressure Test

Power Requirements

  • 100-240 VAC, 50/60z Input Power (Internal Voltage (24VDC)
  • Power: 100 W typical, 200 W peak

Physical Dimensions

  • 14.19 W x 19 D x 11.06 H

Pneumatic Requirement

  • Minimum Gas Supply Pressure: 80 PSIG (120 PSIG Max)
  • Gas Supply Type: Dry Air

Pneumatic Connections

  • Air Ingress: Color Coded, Keyed Staubli Coupling
  • Air Egress: Color Coded, Keyed Staubli Coupling
  • Vent Ingress: Color Coded, Keyed Staubli Coupling
  • Vent Egress: Color Coded, Keyed Staubli Coupling


  • 304 Stainless Steel
  • Dust and Splash Resistant

Environmental Conditions

  • Operating Temperature Range: 60 – 80 °F
  • Storage Temperature Range: -4 – 122 °F
  • Maximum Humidity: 95% R.H. (No Condensation)

AccuFlux® Integrity Test Benefits Demo

Let’s talk. Send a message to our industry experts.