Retrotech DM-2A 用户手册

Retrotec Energy Innovations, Ltd.

DM-2A Mark II   2008-02-22

  The following list explains what each of the information labels printed around the perimeter 

of your display screen represent:

•  Baseline  Indicates either the baseline pressure that will be deducted from the PrA 

value or the current battery health status.

•  n

  Indicates the value of the slope of the line along which @-measurements will be 

extrapolated

.

•  Time  Indicates time averaging on or off.

•  Zero  Indicates whether the auto zero feature is currently on or off.

•  Speed  Indicates the current speed signal going to the device as a percent value.

•  Device  Displays the device currently selected for use with your gauge.

•  Range Config  Indicates the current flow restrictor plate/ring/range configuration 

set for the device.

•  Set  Indicates the pressure or fan speed that is being controlled.

•  Pressure  Indicates the pressure value for channel A.

•  Mode  Indicates the current results mode in use for the lower portion of the display.

•  Volume and Area Input and Display  Indicates the current value of the volume 

used to calculate air changes or the area used in per-unit area displays.

•  Jog/Hold display  Indicates whether if the Jog or Hold features are currently active.

The keypad buttons (shown next) enable you to navigate screens, make selections, and 

enter values in the course of your testing operations. The keypad buttons serve dual functions 
according to the input expected and/or required by the device.

DM-2A Mark II Dual-Channel Pressure Gauge