FCD Question
Moderators: Helpinators, Moderators
FCD Question
I unfortunately am not very firmiliar with building such devices. If when completing this FCD how could I bench test it for a proper result.
-
QuickDrive
- Lurker-King
- Posts: 1050
- Joined: Mon Nov 03, 2003 8:36 pm
- Location: Moncton NB Canada
- Contact:
-
vrg3
- Vikash
- Posts: 12517
- Joined: Sun Nov 03, 2002 2:13 am
- Location: USA, OH, Cleveland (sometimes visiting DC though)
- Contact:
Actually, I don't know if it's been covered in another thread or not...
But basically, you just need to simulate the pressure sensor and power supplies.
I use my PC's power supply; the hard drive connectors generally have red (+5v), yellow (+12v), and black (ground) wires. I connect them to the corresponding wires of the FCD (you'll notice that I use the same colors for my wires) and then connect a potentiometer between the red and black wires. The wiper of this potentiometer goes to the input.
Most of the time, you should measure the same voltage at the output as at the input, except when the input rises above about 4.3 volts. From then on the output should hold at approximately 4.3 volts.
But basically, you just need to simulate the pressure sensor and power supplies.
I use my PC's power supply; the hard drive connectors generally have red (+5v), yellow (+12v), and black (ground) wires. I connect them to the corresponding wires of the FCD (you'll notice that I use the same colors for my wires) and then connect a potentiometer between the red and black wires. The wiper of this potentiometer goes to the input.
Most of the time, you should measure the same voltage at the output as at the input, except when the input rises above about 4.3 volts. From then on the output should hold at approximately 4.3 volts.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212