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Retrotec Calibration Plate for 200 and 300 Series Fans
Q32 Calibration plate (front)

Retrotec Calibration Plate for 200 and 300 Series Fans

Part Number:DU374
temporarily out of stock - ships in 5 to 10 days

Retrotec Calibration Plate for 200 and 300 Series Fans

Formaly DU159

Retrotec’s Field Verification Plate for duct testing systems gives you an easy, five-minute test to verify the accuracy of your duct testing system. Performing this test monthly will allow you to detect calibration problems early and fix them before they become serious.

The DucTester Field Verification Plate gives you the means to check your system calibration in the field, to make sure it is performing at top accuracy. The plate has a nozzle to connect a pressure reference and is meant to be attached to the end of the flex duct. Knowing the size of the hole in the plate, the tester can run the fan, and measure the hole flow. Comparing the result will indicate if the system is within parameters, and can give an indication when the system may need to be sent back to the factory for formal re-calibration.

The field calibration plate is compatible with Retrotecs 200 and 300 series fans duct testing system. The field calibration plate is completely compatible with the Minneapolis DuctBlaster(R).

The DucTester Quickguide and Manual include a section on using the field verification plate to check the system.


  • Sturdy metal construction
  • Nozzle connected to a pressure pickup to ensure even pressure reference during the test

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