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M20013 REL-0000 (2103)
Altitude and Indicated Air Speed
ALT FEET or BEYOND MAX
When BEYOND MAX appears on screen
When BEYOND MAX appears on-screen instead of ALT FEET, the
calculated altitude exceeds 36,000 feet.
Note: Don't confuse BEYOND MAX with an overrange condition.
If the sensor is outside the calibrated range, the HHP400
displays MEAS ERROR and the sensor may be damaged.
Display altitude in feet or meters
1.
Press the
2. Press the
between FEET and METER and back to FEET.
IAS MPH
When you display IAS MPH (KNOTS or KM/H) on-screen, the
current, ambient pressure—the uncorrected barometric pressure—
is measured and is the reference pressure used for calculating air
speed.
When you switch from the IAS MPH screen to one of the other
display functions, the HHP400 does not hold that measurement
in memory. When you switch back to the IAS MPH screen, a new
pressure measurement is recorded and used as the reference
barometric pressure in the IAS MPH calculated air speed.
Switching from the IAS MPH screen to another display function,
and then switching back to the IAS MPH screen again while in
motion (IAS > 0), displays the wrong speed since IAS is reset
to zero (current measured pressure to reference barometric
pressure).
Backward
1.
Press
IAS MPH (mi/h).
2. Press
Units
MPH to KNOTS to KM/H and back to MPH.
User Manual HHP460 Smart Manometer with Altimeter & Air Speed Test
Backward
key to display ALT FEET (Altitude in Feet).
Units
key when ALT FEET is on-screen to switch
two times from the home screen to display
key when IAS MPH is on-screen to switch from
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