DigiVac SNAP Посібник з експлуатації - Сторінка 9
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Controlling at a Setpoint
1.**Note: You can either control in setpoint mode or in one of the modes outlined on pg. 8
The button highlighted on the screen is the mode you are in; Ex. you can set the mode to
Setpoint and push the dial in to activate the icon for setting the set point
2. Once activated the Icon is a button that is located below the vacuum reading.
It says "S-XX" and then lists the current set point.
3.You can adjust it how you'd like. Turn the Dial to the desired setpoint, then Push the
Dial in, to save the set-point or press the SAVE button on the screen. When you return
back to the home screen you will see the updated setpoint on the screen.
4.You are now ready to begin controlling vacuum
Setting PID Variables to Optimize Performance
SNAP ships with PID variables that are optimized for average vacuum hose lengths for
20 and 50 liter vessels. The SNAP is capable of controlling much smaller and larger
vessels, but may require some PID tuning to optimize the control.
For more background on PID check out this white paper Here.
You can access PID variables from the Setpoint (S - xxx) button when in Setpoint mode.
To adjust:
Click on S - xxx button
Click on PID
To put in a different number, input that number in the dialogue box
Touch the value box of the variable you want to change (P, I, D)
Click OK
Your new PID variable is set.
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