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MACS II User Manual
101796668 Revision E 48
Figure 5-12 Calibrate Screen New Calibration (Bottom) Portion
Follow this procedure to calibrate the pressure.
1. Click Start.
2. In the Actual PSI text box, type the actual pressure. If the Read PSI is
reading a negative number, then type 0 (zero).
3. Click Read. The process populates the first line in the Volts and PSI Table
with zero value. The Start button changes to Next.
4. Click Next. Wait for the pressure to stabilize and then type the actual pressure
from a calibrated gauge in the Actual PSI.
5. Click Read. Subsequent lines in the Volts and PSI Table are now populated
with voltage applied and actual pressure generated due to it.
6. Repeat step 4 until the Next button changes back to Start at which point, the
whole calibration process starts repeating.
Click Save to save any changes and close this screen. Click Cancel to exit this
screen without saving any changes. While exiting this screen, the pressure vents out
of the system to render the system safe.