DS3800NADC1D1D

About the DS3800NADC1D1D

GE manufactured the DS3800NADC1D1D, which functions as an analog input card, to work as a component in their Mark IV system. Designed for gas and steam turbine control, the Mark IV works upon the theory of "intentional redundancy." It has integrated chipsets that partially copy the responsibilities of each other, which allows for responsibilities to be transferred away from a failing PCB to working boards to keep the entire system up and running.

The DS3800NADC1D1D is marked for alignment on its top edge. It has four test points (TP) that are individually labeled. One terminal block (7 by 4) is located near the center of the board. A male connector sits on the left side of the board and allows for communication to other PCBs.

The DS3800NADC1D1D includes multiple resistors and integrated circuits. One of these circuits is the Datel A/D converter, located in the upper right quadrant. Nearby are two trim potentiometers, which are used for external adjustment of zero or offset & gain for the converter chip. These have been located as closely together as possible to avoid noise pickup. The DATEL chip features short-cycle operation, internal high z input buffers, and 8 or 20 microsecond conversion times. It has a 12-bit resolution.

Installation of the DS3800NADC1D1D should be attempted only by qualified electrical personnel using guidelines from technical support publications from the original manufacturer (such as manuals or data sheets,) following all safety procedures.

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