9
CHAPTER 3
Operation
Keypad Functions
When pressing the keys on the front panel, the RVD will beep to confirm the
function. If you press a key and the RVD does not beep, then the RVD does not
allow that function during the current mode.
The RVD
has the ability to data log, determine statistics and recall individual
data points. When the
READ
key is pressed, the samples being taken are added
to the memory. The
RECALL
key is used to view statistics or individual sample
points. The
NEXT TEST
key is used to advance to the next test ID number. The
RVD
retains data even when it is turned off.
ON/OFF Key
Press the
ON/OFF
key to turn the RVD on and off. When the instrument is first
turned on it goes through a preprogrammed power-up sequence that includes an
internal self-check which illuminates all the LCD segments. The RVD
will then
display percentage of battery life remaining (accurate for alkaline batteries
only), baud rate, percentage of memory log remaining, time, time constant
value, and current test ID. At this point, the RVD will start measuring in
velocity mode.
Note:
To skip the start-up displays, press
ENTER
at any time during the
power-up sequence.
Arrow Keys (
▲▼
)
The two arrow keys are used to scroll through and select values as needed for
RVD functions. Pressing and holding either arrow key during the start-up
sequence will allow you to change the baud rate, time and date, and time
constant value.
ENTER Key
Press the
ENTER
key to accept a value or condition. In start-up mode, you can
also press the
ENTER
key to skip the start-up sequence.
VEL Key
Press the
VEL
key to display velocity measurements. The velocity will be
displayed in ft/min or m/s depending on the DIP switch settings (refer to
Appendix A). The RVD
will automatically start in velocity mode.
Содержание Alnor RVD
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