TSI Instruments ALNOR MicroManometer AXD 550, Руководство пользователя, Страница: 8 / 26

6
6
AXD 550 Keypad and Menus
The AXD 550 Keypad
Each key (except ZERO ) has two different
functions. The
primary
function is shown above
the diagonal line on the key’s surface. The
secondary
function is shown below the diagonal
line. A more detailed description of each function
follows.
In the RUN mode,
if a key is held for
less than three
seconds
, the primary
function is
activated. When a
key is held for
more
than three seconds
,
the secondary
function is
activated. The
exceptions to this
are the
↑
and
↓ keys. Because
they are used to
move between menu
options, these keys
do not function in
RUN
mode.
The cycle time of the AXD 550 software may
cause the meter to react slowly to a key push. The
reaction time of a key push will vary with different
functions (1–3 seconds). Do
not push a key twice
because of a slow response time. Doing so may
result in accidental activation of a secondary
function or duplication of a desired function.
Primary Key Functions:
ON/OFF This key is used to turn the
instrument on or off when in the
RUN mode. If the instrument is in
any other mode, pressing this key
will exit that function and go back
to the
RUN mode without making
any changes.
VOL The VOL key prepares the
AXD 550 for air volume
measurements. After pressing this
key, you must indicate whether
you’re measuring by area, or
whether you’re measuring a round
or rectangular duct. Choose one of
these options by pressing the
↑ or
↓
keys, followed by the
↵
key to
make a selection. After you make
your selection, use the
↑ or
↓ keys to enter the dimensions,
then the ↵ key to enter the units.
MENU MENU allows you to select one of
several options. Use the ↑ or
↓ keys to move through the
choices. To choose a selection,
push
↵ , or return to RUN mode by
pushing ON/OFF . The MENU
selections are as follows:
[
] Changes memory page
[ ] Prints all stored data
[ ] Correction Factor
[ ] Enables or disables auto
shut-off
[ ] Scans meter voltages
[ ] This is only used by the
factory
[ ] Enables or disables the
serial port
[ ] Time constant selection
(See also “Menu Selections,” next
page.)
HOLD Pressing this key freezes data in
RUN mode for input to memory or
output to a printer. The display
flashes. Pushing
HOLD again
stores and prints your data.
Pressing
ON/OFF returns you to
RUN
mode without storing or
printing.