The 7615 pressure controller will control better when the pump sensor (also called control sensor) matches the quartz reference transducer (also called Paros sensor).
Perform this procedure if the pump sensor has been replaced, or is not reading approximately what your Paros sensor is reading, or if normal operation does not allow for excursions above 75% FS.
This process is automatically performed during normal operation of the 7615 when the pressure is at 10% FS and at 90 FS.
This document provides instructions for performing 7615 Pump Pressure Matching (also called alignment). This procedure matches the output of the pump sensor to the Paros sensor.