Retrotec DU200 DucTester Testing Procedures to meet EnergyStar Standards - Manual (Page 4)

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Gauge set up to meet ENERGY STAR standards
The first time you use the DM-2, press [Auto Zero] to turn it “On,” and press [Time Avg] until it is set to
“8s”.
If the door fan pressure fluctuates more than 2 Pa, press [Time Avg] to reduce the pressure fluctuations. If pressure
fluctuations are still above 2 Pa, use the [Baseline] feature as outlined in QuickGuide-DM2MkII.
Press [Setup] and scroll to “Device Setup” using [
], [].
Press [ ], and [] to change the current selection and enable the Devices needed, which are:
“DU200” for the Q32 DucTester and “1000” for the Door Fan. Press [Exit].
Scroll to “Mode Setup” using [
], [].
Press [ ], and [] to change the current selection and enable the Modes needed, which are shown below.
Air change is only needed if you are using a Door Fan.