AP5104 DIN-Rail Amplifier for LVDTs

⚠️ Editor's Note: This product has been discontinued. This page is for reference only.

The new Series AP5104 is a convenient DIN-rail Amplifier for use with 4, 5, or 6-wire LVDTs (linear variable differential transformer). The AP5104 provides regulated AC excitation with remote sensing capability for cable runs exceeding 20 ft.

The AP5104 produces filtered analog outputs of ±0 to 5V DC, ±0 to 10V DC, 4-20 mA, and 4-12-20 mA, which are field-selectable via the front panel. These outputs are filtered using a low-pass active filter that removes unwanted high-frequency measurement-signal components and thus eliminates aliasing errors. Signal inputs from 16 to 1600 mV/V are accepted.

The DIN mount housing is constructed of high-impact thermoplastic and permits easy access to screw terminal connections for power, analog output, shunt, and sensor signals. All controls are external, including 25-turn trim pots for zero and span, as well as coarse gain and zero, zero-input switch, jumper links for master/slave setting, and excitation frequency setting. The manual or automatic phase shift adjustment feature synchronizes primary and secondary phase shifts caused by winding inductance or cabling.

The AP5104 is easy to use, with a power status indicator light and an analog over-range indicator light.

Model AP5104 is available now, prices begin at $375. This unit is compatible with the complete range of Stellar Technology AC/AC LVDT transducers, and most other manufacturers' LVDTs.