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Eggtimer Rocketry Proton User Manual page 24

Board reva9; software rev. 1.01a

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Altitude (100'-2000', default is 500') :
Deployment altitude for the event. When your rocket descends from nose-over to this altitude or
below, the channel will fire.
Deploy Mode (Igniter/Servo, default is Igniter):
Selects Igniter mode (on-off) or servo mode (CH1-3 only).
Pulse Width (Igniter only, 1-9 secs, default is 1 sec):
Controls how long the output will fire in Igniter mode.
Servo Skew: (Servo Only, CCW 100%-CW100%, CH1-3 only, default is 100% CCW)
Controls how far the servo will move when triggered. When the servo is Reset, it will go in the
opposite direction the same amount, i.e. if you have it set to CCW 75% it will go to CW 75%
when reset.
Failsafe Time (OFF, 0.3-3.0 sec, default is OFF):
Controls the time for the failsafe check (see below).
Failsafe Vel. (50-300 fps, default is 100 fps):
Controls the velocity for the failsafe check (see below).
The Failsafe mechanism is designed to help prevent your rocket from coming in ballistic due to
drogue parachute failure. Your descent velocity is monitored from the time that nose-over
occurs. If the descent velocity exceeds the Failsafe Velocity parameter for the Failsafe Time
period, the channel will fire as programmed. The idea is that if your drogue chute doesn't
deploy, your main will be deployed at a relatively low velocity somewhat near apogee,
preventing your rocket from coming in at very high speed. Yes, it's going to cause your rocket
Proton_2abcd
1.01a
Main Settings
Channel 2:
Altitude: 500
v
Deploy Mode: Igniter v
Pulse Width: 2 secs
Failsafe: Time 1.0
Vel. 100
Submit
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v
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