Retrotec DucTester 341 Bedienungsanleitung PDF herunterladen (Seite 34)

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©Retrotec Inc. 2014

7.2 Mode Setup for various standards around the world

Table 4: Gauge Mode Setup for various standards around the world

Standard:

Region:

France

Res

France

Apt

France

Comml

Pressure

Flow

m3/hr

7.3 Setting up and using the DM32 gauge for Duct testing

3. Set up the gauge to show the results you require

Tap [Channel B] on the screen to select a different Result, or tap the [Result to be

displayed] button in the [Settings] menu. Typically, choose between Flow or Flow/Area.

Units for flow are typically CFM, and units for Flow/Area are typically CFM/ft

, CFM/100 ft

or CFM/1000 ft

If Flow/Area is the Result is selected, the [Area] button will be appear on the Home screen.

Tap the [Area] and enter a value to change the area in units of sq ft. The [Area] can also be

changed from the [Settings] menu.

4. Set up the gauge to show only the fans and ranges you need, and set the ones currently in use

Press the [Device] button (fan icon from the Home screen) and select [340].

Next, select Range Configuration [74]. If Range Ring installed on fan is not Range 74-Range,

adjust the setting on the gauge to match what is installed.

5. Set up the gauge for proper time averaging.

Press the [Settings] button and toggle [Time Averaging] to get “4s”, or go to 8 seconds if

results are fluctuating.

6. Adjust fan speed on DucTester

Use [Set Pressure] on gauge: Press [Set Pressure] on DM32 gauge’s Home Screen, then

[25], [Set]. The fan will automatically accelerate and maintain a pressure of 25 Pa in the

duct system. Press [@] button until “@ is On” is displayed to view the result at exactly 25

Pa. If your standard requires 50 Pa, change the [Default @ Pressure] to 50 Pa from the

[Settings] menu.

Use [Set Speed] on gauge: Press [Set Speed] on DM32 gauge’s Home Screen, then [50],

[Set] to set the fan speed to 50%. Press [] or [] buttons to adjust the speed until Duct

Pressure (Channel A) displays close to 25 Pa. Press [@] button until “@ is ON” is displayed

to view the result estimated at 25 Pa. If your standard requires 50 Pa, change the [Default

@ Pressure] to 50 Pa from the [Settings] menu.

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