Retrotech DM-2A 用户手册

Retrotec Energy Innovations, Ltd.

DM-2A Mark II   2008-02-22

9.  Press the J

 keypad button again. Notice that Hold now appears at the top 

centre of your gauge display screen (as shown next). In this state, your gauge will 
hold the current measurements. This is useful when you wish to freeze a specific 
pressure reading at a given speed.

10.  Press the J

 keypad button a third time to cycle the feature to off, as indicated 

on your display screen.

11.  To turn the test device fan off, press the S

 keypad button, enter a percent 

value of 0 and press the e

 keypad button. Your test device fan will gradually slow 

to a stop.

12.  Press the S

 keypad button. Notice that the words Room Pressure: now 

appear on the gauge display screen followed by a blinking cursor (as shown next). 
This feature enables you to manually control the pressure of a room or enclosure 
using the pressure created by the test device fan. 

DM-2A Mark II Dual-Channel Pressure Gauge