The DFI 1650 is a self-calibrating microprocessor based six-digit transducer indicators. This versatile instrument will instantly self-calibrate with any Cooper transducer equipped with the “Sure Cal Signature” option. One to four independent transducer channel cards are available. Transducers previously purchased may be used by purchasing the In-Line module. Manual calibration of the DFI 1650 is done via the front panel menu. An auto-zero circuit will zero the indicator when no load or pressure is applied to the transducer. Standard outputs include RS-232 and 0-5 volt analog output.