Retrotec DM-2A Manuel d'utilisateur télécharger pdf (Page 13)

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©Retrotec Inc. 2012

The DM-2 Screen

The Display Screen is where all measurement values are shown, as well as the current status of the

device, and test configuration.

Table 1. DM-2 Gauge keys and functions.

Key

Description

Page for

information

Battery Health

/Baseline

Displays the battery health (degree of charge) for rechargeable batteries

only.

If Baseline has been activated, a pressure will appear that is deducted

from the PrA value.

Jog/Hold

Cycles between inactive as indicated by "- - - - " and "Hold" which will

hold the display and control functions until “Hold” is turned off.

Jog can be enabled when in Set Speed or Set Pressure mode.

Displays the current value of the slope of the line along which

@Pressure measurements are extrapolated. Can be set between 0.50

and 1.00. A value of 0.65 is suggested for houses, 0.60 for ducts and

0.55 for leaky buildings with large holes and for large buildings.

Time

Displays the current Time Averaging setting: Off, 1s, 2s, 4s, 8s, 10s, 20s,

1m, 2m.

Zero

Displays the current Auto Zero status, On or Off.

Volume/Area

Input

Displays the current surface area, or enclosure volume setting, used for

calculations involving per unit area.

Speed

Displays the current fan speed as a percentage.

Device

Displays the current fan (also known as the Device). This must match the

fan that is in use.

Range Config

Displays the full Range configuration. The range selected must match

the Flow Range that is in use.

Set

Displays either the Set Pressure for Channel A or the Set Speed for the

fan that the gauge will attempt to reach.

Mode

Displays the current results being calculated by the gauge.

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Retrotec DM-2A Manuel d'utilisateur Page 13

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