The Allen-Bradley 836T-D463JX81X15 Electromechanical Differential Pressure Controller is a member of the 836 series of pressure controllers that are specifically designed and manufactured by Allen Bradley for the precise measurement and control of differential pressure levels in an industrial application process. This controller can operate as a standalone controller and it uses 2 electrical contacts to engage or disengage a control circuit, such as in a system with a combination of pumps and automatic valves intended to keep the water level in a tank between 2 user-defined points. The Allen-Bradley 836T-D463JX81X15 Electromechanical Differential Pressure Controller can also be used in machine tool applications, which often require very precise measurement and control of the pressure difference between 2 pressure chambers, or precise control of the speed and direction of the movement of a hydraulic cylinder.

The built-in electrical contacts that com from the factory in the Allen-Bradley 836T-D463JX81X15 Electromechanical Differential Pressure Controller are of the SPDT (Single-Pole, Double-Throw) type, which means that when one of the contact opens the other one closes and vice versa. With those contacts, up to 4 independent electrical circuits may be activated by the differential pressure tripping point that is externally adjustable by using a set of pressure ranges and set point adjustment screws and locking nuts. The Allen-Bradley 836T-D463JX81X15 Electromechanical Differential Pressure Controller’s electrical specifications for the circuits to be connected to the controller are a maximum voltage of 600 Volts AC, and a maximum inrush current rating of 5 Amps. Only properly trained technicians should be allowed to perform maintenance operations on the device.