Molbox™ COMPASS® software

The Fluke Calibration molbloc/molbox is a unique gas flow standard offering state-of-the-art metrology from <1 sccm to several thousand slm


Calibration assistance software for molbloc/molbox™ users

The Fluke Calibration molbloc/molbox is a unique gas flow standard offering state-of-the-art metrology from <1 sccm to several thousand slm with a wide variety of gases and real time measurement capability. COMPASS® for molbox software works with molbloc/molbox to create a full function calibration system. The result is the optimal flow calibration system combining the outstanding performance of molbloc/molbox with the power, versatility and features of a modern PC-based application.


  • Usable on any PC with a 32-bit Windows OS and available COM port.
  • Supports both molbox1+ and molbox RFM.
  • A true Windows® application following Windows protocol for file management, menu and message formatting, graphics and editing. Other applications can be run without interrupting test execution.
  • Complete online Help facility with Tool Tips.
  • Customizable user interface with scalable windows.
  • Calibrate and test a wide variety of devices including: MFCs, MFMs, rotometers, turbine meters, bubble meters and others.
  • Fully automated testing of both analog and digital MFCs.
  • Automated flow control support for testing flow measure only devices.
  • Flow corrections with automated ambient pressure and temperature entry for density dependent DUTs.
  • Log extra data from the DUT during the test with user defined commands.
  • Open hardware configuration allows simple integration of third party acquisition, control, and pressure and temperature measurement hardware.
  • Sets up and maintains DUT database with unique DUT characteristics, test scripts and histories.
  • Process gas editing tool includes complete gas conversion factors for most major MFC manufacturers and automatically calculates conversion factors for missing relationships and blends.
  • Produces standard, delimited test data files which easily import into other software programs if desired.
  • Test data files stored in user definable directory structure.
  • 100% customizable test report generation tool with preformatted templates.
  • Extensive on-board plotting function to create a variety of test data plots.





Electronic interfaces supported by COMPASS software

molbox and auxiliary device interfaces RS-232

IEEE-488 (National Instruments or CEC interface hardware required)

DUT interfaces RS-232

RS 485 (requires RS485-to-RS232 converter)

IEEE-488 (National Instruments or CEC interface hardware required)

DVICENET (National Instruments)

Recommended system configuration to run COMPASS for molbox software

  • PC with 32-bit Microsoft OS and available COM port
  • Access to CD drive to load COMPASS for molbox
  • molbox1 or molbox RFM based mass flow standard



Model Name


COMPASS for molbox COMPASS for molbox flow calibration software

      Product manuals




Request a quote - Shop

  • Any additional requirements? Please let us know.
  • This field is for validation purposes and should be left unchanged.

Call Now Button