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Endevco® model 2771C-XX remote charge converter (RRC) is an ultra low noise, two-wire, single-ended device designed for use with piezoelectric (charge output) transducers. This device transforms the transducer's high impedance charge output to a low impedance voltage proportional to the transducer's charge. The signal output from the RCC is less susceptible to noise because of its low impedance voltage. Also, the shunt capacitance of the cable connecting the RCC to the main conditioner does not significantly affect system noise and sensitivity.

The signal output from RCC and the current to RCC are carried along the same wire. Model 2771C is a low-noise device, and has fixed gains of 0.1 mV/pC, 1.0 mV/pC, and 10 mV/pC. This is a low noise device. It operates within a constant current range of 4-20 mA.

This unit supports the proposed IEEE P1451.4 TEDS (Transducer Electronic Data Sheet); a memory chip that allows storage and recall of the following sensor data: sensitivity, model number, serial number, manufacturer, date of last calibration and sensor location.