Scaline

[bhuviram]

I have a sensor that calculates both pressure and vacuum. When I caliberated the sensor I received different slopes and offset for pressure and vacuum respectively. I have a certain sequence of solenoid states and I have to measure the pressure and vacuum flow rate. Sequence for ex:

Step 1) Solenoid 1 (pressure state), the system will go from 0psi to 32psi. Start the timer at 10psi and stop the timer at 32psi and based on time calculate flow rate.

Step 2) Solenoid 1 (vacuum state), 32psi to -10psi. Start the timer at 10psi and stop the timer at -10psi and calculate vacuum flow rate.

Step 3) Solenoid 2 and so on

Issues:

1) How do I apply different scaling?. I read the voltage using DAQ read and if its < 1.16 I need vaccum scaling and if not pressure scaling. Should I use some property node to implement it.

2) How can I implement the timer.

I would really appreciate if someone could direct me.

Thanks