Which EMC (electromagnetic compatibility) devices are helpful for the design and modification of antimicrobial susceptibility testing instruments?

The EMC design of this equipment prioritizes long-term stability. The heater in the constant temperature incubator should be controlled by a PID solid-state relay with RC absorption across the SSR terminals, and the temperature sensor signal line should be shielded. Optical detection units (e.g., photometers) should be located away from the heater and motor areas, with regulated power supply for their light source and shielded detector circuitry. The stepper/servo motor drivers for the sample card transfer mechanism should be properly filtered, and non-metallic materials (e.g., nylon gears) should be used in the transmission components to reduce electromagnetic coupling. The entire system should be equipped with an online UPS or use a high-quality switching power supply to withstand grid fluctuations.