Is the Safety Timer hard to set?
No. It comes set for about 10 seconds from the factory. Note that tilt testing must be done before the safety timer times out, to see the 1 sec. blink of the apogee LED, which indicates tilt detection. If you push the test button, and don’t tilt the board, after 10 sec., the safety timer times out, and forces the apogee output on (stays on). To set the delay, just lay the board on a table, and push the button. Time from start to when the apogee LED activates (stays on). This delay should be approximately your rockets time to apogee, plus 1-2 sec. For best accuracy, let the board stay off 2 minutes between tests. Adjust the blue 20 turn pot to set the delay. • What about the Main Timer Dipswitch? This setting has nothing to do with the safety timer. The Main time delay is set in increments of ~5 sec., and starts when apogee fires. If all the switches are down, that is zero, and main will fire right after apogee. Move only the rightmost switch up for 5 sec. Use the chart provided to set
