Data Track designed the Tracker 250 digital panel meters specifically for use with Melt Pressure Transducers. Data Track's "Fast Cal" feature provides a fast and simple method of calibrating a panel meter to a melt pressure transducer using it's internal calibration resistor. Re-calibration can be undertaken whenever the melt pressure transducer is at ambient pressure (i.e. has no pressure applied to it). Should the melt pressure transducer be faulty, or incorrectly wired, it will be indicated to you during the calibration procedure.