Retrotech DM-2A 用户手册

Retrotec Energy Innovations, Ltd.

DM-2A Mark II   2008-02-22

3.  The time averaging feature calculates the average pressure over a given time period. 

Pressing the t

 keypad button enables you to cycle through the range of 

time-averaging intervals: Off, 1s, 2s, 4s, 8s, 10s, 20s, 1m, and 2m (where s represents 
seconds and m represents minutes). The current time average interval is displayed in 
the display window below the Time label (as shown next). Press the t

 keypad 

button once and notice that the pressure values change according to the current 
time average setting.

4.  Press the a

 keypad button once to activate the feature. 

Your gauge will 

periodically produce an audible clicking sound. When a

 is active, 

your gauge’s solenoids will automatically be reset

 every ten seconds. Your gauge 

display indicates the Auto Zero On or Off state below the Zero label in the upper-right 
corner of the screen (as shown next). Press the a

 keypad button to turn off 

the feature.

DM-2A Mark II Dual-Channel Pressure Gauge