APD 4051 Series Bridge/Strain Gauge/Load Cell Transmitters

The APD 4051 accepts a strain gauge, bridge, or load cell input and provides a proportional, isolated DC voltage or current output. It includes filtering and processing to allow effective use of low-level transducers in the noisy environments common in industrial applications. The built-in bridge excitation power supply generates a stable source of excitation voltage to drive a 350 W (or greater) bridge type sensor such as a load cell, pressure transducer, or strain gauge and amplifies and converts the resulting millivolt signal into the factory configured output.

The APD 4051 is factory configured to a specific excitation voltage, millivolt input (mV/V rating of the sensor multiplied by the excitation voltage), DC voltage or DC current output, and power. The input can be configured as zero-based (i.e., 0 to 20 mV), bi-polar (i.e., –30 to +30 mV) for push-pull applications, or offset (i.e., 5 to 33 mV) to electronically compensate for deadweight (tare). The output can be configured as zero-based, bi-polar, or offset.
In addition to the standard output ranges, the APD 4051 output can be configured meet most non-standard requirements.