Dakota Ultrasonics VX - Manual (Page 7)

VX Ultrasonic Velocity Gauge
3
OPERATION
The VX interacts with the operator through the membrane keypad and
the LCD display. The functions of the various keys on the keypad are
detailed below, followed by an explanation of the display and its various
symbols.
The Keypad
This key is used to turn the VX on and off. When the gauge is turned
ON, it will first perform a brief display test by illuminating all of the
segments in the display. After one second, the gauge will display the
internal software version number. After displaying the version number, the
display will show .0000 IN /
µs (or 0000 M /s if using metric units), indicating
the gauge is ready for use.
Pressing the ON/OFF key turns OFF the VX. The gauge has a special
memory that retains all of its settings even when the power is off. The
gauge also features an auto-powerdown mode designed to conserve
battery life. If the gauge is idle for 5 minutes, it will turn itself off.