Retrotech DM-2A 用户手册

Retrotec Energy Innovations, Ltd.

DM-2A Mark II   2008-02-22

The Significant Figures – or ‘Sig Figs’ – feature controls the number of significant digits displayed 

and allows an extra digit, round to the nears 5 to be displayed. The available options are:

2.5  Two significant figures plus a third figure rounded to either 0 or 5.

3.0  Three significant figures.

3.5  Three significant figures plus a fourth figure rounded to either 0 or 5.

For example, the table shown next illustrates example values displayed using specific 

significant figure options.

1.0345

1.05

1.03

1.035

20.353

20.0

20.4

20.35

147.626

150

148

147.5

4326.72

4350

4330

4325

The Reverse Mode option (shown next) essentially enables you to set your gauge to control a 

fan device in reverse of normal operations. For normal operations, leave the Reverse Mode option 
set to No, meaning the feature is disabled. This is the default configuration for your gauge.

DM-2A Mark II Dual-Channel Pressure Gauge