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DISCONTINUED - Retrotec Calibration Plate for 300 Series Fans

This product is discontinued.

SKU:
DU374
MPN:
DU374
Availability:
DISCONTINUED
Minimum Purchase:
1 unit
  • DISCONTINUED - Retrotec Calibration Plate for 300 Series Fans
  • DISCONTINUED - Retrotec Calibration Plate for 300 Series Fans
DISCONTINUED - NOT AVAILABLE FOR PURCHASE

Description

DISCONTINUED - Retrotec Calibration Plate for 200 and 300 Series Fans

You’ll be comfortable knowing you’re using your new DucTester correctly simply by using this Field Calibration Plate. Then you’ll be able to verify the accuracy of your equipment by using this 5-minute test on a regular basis. Show Code officials and builders that it really works. Detect equipment, set up and usage problems immediately to ensure your results are always accurate.

Retrotec’s Field Calibration Plate for the 300 series DucTester 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 Calibration 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.

Specs

Includes

  • Field Verification Plate

Videos

Resources

Detailed Duc-Tester Pressurization Field Calibration Check Procedure



  1. Tape the Field Calibration Plate to the flex duct flange & attach the red tube.
  2. Attach the flex-duct to the outlet side to pressurize the duct. Install the Mid flow ring.
  3. Connect up as if you were testing a duct.
  4. Set to Flow @ 25 Pa, time averaging to 8 seconds. Adjust the speed until PrA reads close to 25 Pa. Allow the flex duct to straighten out to its full length.
  5. Wait for 30 seconds after fan speed stabilizes.

The depressurization test is the same as the pressurization test, except the flex-duct is mounted on the Duc-tester inlet.

If the measured flow of your Duc-tester is less than 97 CFM or greater than 106 CFM, our problems checklist will help you to determine a resolution.



Problem Problem Frequency Typical Error Details
Wrong Range Configuration or Device Constant -80% to +400% Setting the Digital Gauge to the wrong Range Config or Device is the most common error. Often occurs just after
a change of Range or Device.
Tubing Connections incorrect Sometimes 20% Especially for pressurizing houses and depressurizing ducts, tubes are hooked up incorrectly most of the time.
Plugged tubes Seldom 20% to 200% Wide range of errors but not that common.
Leaking tubes Less Seldom 10% to 50% Wide range of errors but not that common. Usually the
pressure source will restore some leaked away air but if excessive, pressure indications will fall.
Flex duct leaking Slow degradation 1% to 25% Very common but small. Always there to some degree. This procedure will identify a leaking duct so it may be
patched with duct tape.
Gauge channels read differently Rare 1% to 20% One of 2 channels reading differently. Uncommon but could be a big error. If both channels have an identical error, the effect on the result is negligible.
Gauge wont zero Rare 1% to 5% One of 2 channels reading differently. Uncommon but
could be a big error. If both channels have an identical error, the effect on the result is negligible. It is the difference between the channels that causes the errors.

Software / App