As part of our full-service design and engineering capabilities, Merrick has in-depth instrumentation and controls expertise including designing complex Distributed Control Systems (DCS), local control loops, field instrumentation, and stack monitoring systems. We have programmed PLC logic for machinery control applications performed system configuration and developed graphic screens for DCS systems. Merrick is familiar with current trends in instrumentation technology development and is proficient in the proper application of process controls. Among the services provided are P&ID development, process control, motor control, logic ladder control, loop diagrams, and wiring diagrams.