Retrotech DM-2A Manual de usuario descargar pdf (Pagina 16)

Retrotec Energy Innovations, Ltd.

DM-2A Mark II 2008-02-22

The keys labeled 0 through 9 and the decimal point can be used for inputting values when

needed. You’ll also notice there are four directional keys labeled with arrows as in 2, 4, 6, and

8 representing up, left, right, and down (respectively). Besides the numeric and directional

functions, keys also include these secondary functions:

 MOde The DM-2A mark II can display measurements and calculate results inThe DM-2A mark II can display measurements and calculate results in

a variety of units. The upper portion of the display screen (PrA) always shows

channel A pressure, while the lower display area can change according to the

channel B display or the current mode. Press MOde continuously to cycle through

the selections made available from the Setup menu. Choose from these modes:

• Flow Displays the calculated ﬂow though the fan.

• EqLA This displays the Equivalent Leakage Area, sometimes called the

Canadian ELA usually taken at 10 Pa .

• EfLA Displays the Eﬀective Leakage Area (EfLA), sometimes called the US or

LBL (Lawrence Berkeley Labs) ELA and taken at 4 Pa.

• Air change Measures the air changes per hour. This mode requires that you

input the volume on the main screen.

• Flow/Area Displays the ﬂow divided by the area that you have input on the

main screen.

• EqLA/Area Displays the equivalent leakage area (EqLA) divided by the area

that you have input on the main screen.

DM-2A Mark II Dual-Channel Pressure Gauge User Manual

1: Getting Started

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 59 60

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Retrotech DM-2A Manual de usuario Pagina 16