Flowbench Project page 4.
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Here are the finished pitot tubes.
Here are the bench control switches they are Carling rocker switch/breakers. From left to right, bench and motor contactor coil power, motors 1-4, motors 5-6, motors 7-8, motors 9-10. The upper two switches are Clippard air valves for switching pitot and test pressure to the FP-1.
The back of the control switches. The extra wiring is for hour meters and a 120V plug in.
Breaker box wiring. The contactor at the top is controlled by the left most rocker switch and turns on the bench and motor contactor coil power.
Motor contactors, two motors per contactor. The upper contactors will cut motor contactor coil power. That way all motors can be killed with the main bench power switch.
Motor wiring.
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