Scaling - Graco PR70 Operation & Maintenance Manual

Scaling

To scale the pressure transducer:
• Plug the transducer into a fitting with a gauge to read pressure.
• Put the highest value of air pressure (500psi maximum) on the fitting.
• Enter the pressure reading from the gauge in the High (PSI) field.
• Press the Set High Pressure Scale Factor button.
• Remove the air pressure, verify the gauge reads zero.
• Enter the value (zero) reading from the gauge in the Low (PSI) field.
• Press the Set Low Pressure Scale Factor button.
• Run the air pressure up and down and verify the gauge reading matches the reading in the Scaled field.
• Repeat if necessary.
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