2020 Trade Shows are cancelled so let DYNOmite bring them to you...

Trade Show Update


Trade Shows have been cancelled for 2020 and we are disappointed as you are. But in anticipation of this reality, we have been working hard to create a new-to-the-world virtual booth for our devoted Customers. You will hear more about this in the next weeks, but look for:

  1. Live streaming content with industry experts
  2. Demonstrations with service techs of our equipment
  3. Live chat with Sales and Service staff to discuss industry needs and innovations
  4. Watch as some of the most popular SuperFlow and DYNOMite products are being built
  5. the coolest opportunity the industry has ever experienced – YOUR chance to interact with our Innovation team to finalize versions of software and controls

DYNOmite views this year as an opportunity to engage with you in ways we haven't been able to in the past. Please visit our show page to register for additional information as it becomes available.

Barometric Pressure

Read about determining the correct barometric pressure to enter for correcting dynamometer horsepower data

Basics | 07.20.20

How do I determine my shop’s “absolute barometric pressure?

An accurate absolute barometric pressure entry, on DYNO-MAX’s Run Information – Weather tab, is required for applying atmospheric correction standards – to internal-combustion engine test data. This information must be entered as absolute, rather than altitude-compensated, barometric pressure. Typical weather-forecasting barometers, are calibrated to report relative (altitude compensated) pressures. This applies to most home barometers (if they are even accurate at all).

Note: Even if you use the optional DYNOmite Weather Station to automatically enter your atmospheric data, it must still be (periodically) calibrated with the same pressure information.

One way to get an accurate barometric pressure reading is to call a (very) local airport. Ideally, the person you reach will understand the difference between absolute and altitude-compensated, barometric pressure. It is important for you to know which reading they give you. If the person can tell you both readings, they likely understand the difference.

If an airport (or other source) can only supply you one reading, it will probably be the relative (altitude compensated) pressure. All is not lost though, it is easy to convert a local altitude-compensated, barometric pressure reading into absolute terms – as long as you have the altitude that local reading was taken at. The airport-tower people should know their altitude. If not, try this link:

DYNO-MAX includes a tool (on its same Weather tab) for adjusting relative barometric-pressure readings – to remove their altitude compensation. Just input your Local Barometer reading and your Altitude (under Calculate Absolute Pressure). Then click the Enter Absolute From Local Pressure button to have DYNO-MAX calculate and insert the absolute pressure for you.

Important: If you attempting to use the optional DYNOmite Weather Station module, but its Barometric Pressure is wrong by a factor of two, it has probably been miscalibrated using PSI instead of Inches of Mercury (or vice versa).

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