Retrotec DM-2A Manual de usuario descargar pdf (Pagina 72)

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©Retrotec Inc. 2012

Term

Definition

room

See “Enclosure”.

room pressure

The pressure difference created by the Door Fan between inside and outside of the enclosure.

This pressure is commonly measured by Channel A on the gauge.

Speed Control port

Output Control port on the gauge, to control fan speed, labeled “Speed Control”

time averaging

Refers to the digital gauge display that must have an adjustable averaging from 1 second to 1

minute for the purpose of averaging fluctuating pressure signals.

Averaging can be block averages that will update for the length of the average or rolling

(moving) averages that will update continuously by displaying the average over the past time

period.

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1.1 Gauge Overview 6
1.1.2 The DM-2 Screen 7
1.2 Batteries 8
1.2.2 Charging batteries 9
1.2.5 Replacing batteries 9
1.3 Resetting the Gauge 10
1.4 Screen Contrast 11
2 DM-2 Keypad Functions 12
2.1.5 Mode 13
2.1.6 Range Config 13
2.1.7 Setup 14
2.1.8 Baseline 14
2.1.11 Set Pressure 15
2.1.9 Time Avg 15
2.1.10 Auto Zero 15
2.1.12 Set Speed 16
2.1.13 Jog/Hold 16
2.1.14 @ Pressure 17
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3.1 Setup Menu 19
3.1.1 Full Screen Timeout 20
3.1.2 Restore Settings 20
3.1.3 Language 21
3.1.4 Battery Type 21
3.1.5 Display Version Info 21
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3.1.7 Power Down Hour 23
3.1.8 Surface Area Unit 24
3.1.9 Building Volume Unit 24
3.1.10 European, Separator 24
3.2 Device Setup 25
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3.3 Mode Setup 28
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4.1 Differential Pressure 30
4.3 Analog Magnehelic Gauges 31
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8.1 Making the Connections 40
8.1.2 Control connections 41
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9 Troubleshooting 45
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9.13 Updating Firmware 54
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Cannot Reach 50 Pa Factors 60
Cannot Reach 25 Pa Factors 61
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 64
Inside Temperature (F) 65
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Glossary 70
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