Retrotec DM-2A Bedienungsanleitung PDF herunterladen (Seite 26)

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©Retrotec Inc. 2012

The Retrotec DM-2 can be connected to Minneapolis's Model 3 and Model 4 fans.

To connect the DM-2 to a Minneapolis Model 3 or Model 4 Fan

1. Using the included Retrotec Umbilical cable, connect the yellow pressure tube from the

yellow port of the DM-2 to the open port on the fan.

2. Some newer versions of the Model 3 and 4 contain an additional Reference port. If

available, connect the green tube in the Umbilical cable from the green port on the DM-2 to

the Reference port on the fan.

3. The power and Control Cables included in a Retrotec umbilical cannot be used when using a

3rd party fan. Make sure the batteries are fully charged, prior to beginning testing.

4.2 Conducting a Basic Test

After making the necessary connections with the DM-2 (to the fan), follow these steps to begin a test.

To conduct a test

1. Turn the gauge on by pressing [On/Off].

2. Press [Exit] to exit the welcome splash screen.

3. Check the battery power before beginning a test to ensure the gauge has enough power to

complete the test. (Plug the gauge in, recharge or replace batteries if needed).

4. Select the appropriate device to which the DM-2 is connected by pressing [Device].

5. Select the appropriate Flow Range configuration for the fan by pressing [Range Config].

6. Press [Mode] to select the required results to display. Note that the mode can be changed

at any point during the test to view different results.

7. Select an appropriate time averaging value for the test conditions by pressing [Time Avg].

8. Ensure that AutoZero is on.

9. Press [Baseline] to begin acquiring a baseline pressure reading. Press [Enter] after 60

seconds to set the baseline reading.

10. To view the results at a particular pressure, use the [@ Pressure] function.

11. Either press [Set Speed] to set the fan speed to a particular percentage,

OR press [Set Pressure] to control the fan to a particular building pressure.

12. Press [Jog/Hold] once and use the arrows to increase or decrease the speed/pressure, or

push it twice to hold the results on the display.

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Retrotec DM-2A Bedienungsanleitung Seite 26