6300 Rev H User’s Manual
125-9106A Page 18
[4] Pitot-Rate units
The Pitot-Rate units are typically the Pitot units per minute. If Pitot units are knots then the rate units are
knots/min. However, there are three exceptions as shown in the table below. Pitot-Rate units cannot be
changed by the user.
Exceptions
Pitot units Pitot-Rate units
Mach knots/min
km/hr km/hr/sec
EPR inHg/min
[5] Pitot-Rate Actual value
The Actual rate of change of pressure at the Pitot output, converted to current Pitot-Rate units, is
displayed here. The displayed resolution depends on the Pitot-Rate units as shown in the table below.
The Actual Rate value is updated every 250 msec.
Pitot-Rate Units
Displayed
Resolution
knots/min 0.1
km/hr/sec 0.01
mph/min 0.1
inHg/min 0.001
mbar/min 0.01
psi/min 0.001
mmHg/min 0.01
kpa/min 0.001
[6] Pitot-Rate Target value
The rate at which the Pitot Target value ramps from one target to the next target, is determined by the
Pitot-Rate Target value. That is, if the Pitot-Rate target is set to 150 knots/min, and the airspeed (Pitot)
target is changed from 25 knots to 100 knots, the 6300 will ramp the airspeed at a rate of 150 knots/min,
taking roughly 30 seconds to move from 25 knots to 100 knots.
Note: On most aircraft, there is no indicator which displays this pitot-rate.
The Pitot-Rate target value has the same resolution as the Pitot-Rate Actual value. How to set the Pitot-
Rate Target is described in Section 3.5.
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