5
5
To attach the printer:
• Grasp the 8521 integral cable at the connector.
• Align the keyway.
• Gently push the connector into the AXD 550
until it is locked.
Start-Up Sequence
Each time you turn the instrument on, some basic
functions are tested. The following will occur:
• All the LCD segments will turn on.
• The current software revision level will be
displayed.
• The message [
] will appear.
• The last unit of measurement will be displayed.
• The meter will begin to measure.
Zeroing the Instrument
Before you begin taking measurements, the
AXD 550 must be zeroed by following these steps:
• Most hand-held meters using differential
pressure sensors require a warm-up time. Turn
on your AXD 550 a minimum of five (5)
minutes before zeroing and taking your first
measurements.
• Make sure there is no air flowing past a Pitot
probe. Also verify that none of the tubing is
pressurized by accidental squeezing.
• Press the
ZERO
key until [
] appears on
the display.
The instrument will automatically zero its
readings. Repeat this procedure if necessary,
because at high resolutions the AXD 550 will read
small pressure changes.
Clearing the Memory
If this is the first time you are using the AXD 550,
clear the memory before using the instrument.
Clearing the memory is done with the following
steps:
• Push
CLR
for three seconds.
• Push
↑
until [
] appears.
• Push
. ↵
to clear memory.
The meter starts in
RUN
mode. It will display
measurement values associated with the unit last
used. If the value is
OVERRANGE
the display
will show [
]; similarily if the instrument is
measuring an
UNDERRANGE
value the display
will show [
].
The Display
The AXD 550 uses a 4-digit, 7-segment LCD. As
a result, measurements exceeding 9,999 of a given
unit of measure will be displayed in a scientific
notation format of XXEY. The actual reading will
be rounded to the nearest thousand, XX. The Y
indicates the number of zeros after XX. For
example, 12,751 is displayed as [
].
The AXD 550 is measuring and averaging the
actual
value of the reading, not the rounded
scientific notation value. No accuracy loss will be
encountered. When printing the data on the 8521
MicroPrinter or downloading the data to a host
PC, the actual reading will be seen.
Modes
The AXD 550 operates and takes measurements in
the
RUN
mode. You may be in the
RUN
mode or
one of the menu selection modes.
Содержание ALNOR MicroManometer AXD 550
Страница 1: ...AXD 550 MicroManometer OWNER S MANUAL...
