I'm trying to reset the input from a transducer that measures changes in water volume inside a burette. I realize the attached VI is probably not the most efficient way to do it, but I am trying to have a control (boolean) in the front panel that when turned on once, it will take that value generated in that iteration and subtract it from the rest of the random generated values. The random number generator represent the input from this digital pressure transducer I have, which has it's on VI. When I start the test, the transducer sends reading correspongind to the weight of the already existing column of water on top of it, and I want to tell it to subtract that initial weight from the remaining of the readings obtained throughout the test. I hope this makes sense. Can anybody help me, please?!