5
• Attach one section of flexible tubing to
the probe’s static pressure port, and
another to the probe’s total pressure
port.
• Identify the (+) and (-) pressure ports
at the top of the AXD530.
• Attach the tubing from the total pres-
sure port of the Pitot-static probe to the
(+) port of the MicroManometer.
• Attach the tubing from the static pres-
sure port of the Pitot-static probe to the
(-) port of the MicroManometer.
• Check to ensure that all tubing connec-
tions are tight.
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 along with a measurement
value.
• [
] followed by [
]
will appear.
• The meter will begin to measure.
Zeroing the Instrument
Before you begin taking measurements, the AXD530
must be zeroed by following these steps:
• Most hand-held meters using differen-
tial pressure sensors require a warm-up
time. Turn on your Alnor AXD530 a
minimum of 5 minutes before zeroing
and taking your first measurements.
Pitot-static probe
TOTAL PRESSURE HOLE
STATIC PRESSURE HOLES
STATIC PRESSURE PORT
(TO - INPUT ON MANOMETER)
TOTAL PRESSURE PORT
(TO + INPUT ON MANOMETER)