Automation Equipment and Instrumentation

Control and instrumentation can be defined as subproducts for measuring, sending messages, controlling, and regulating. These are installed locally in each system, in the installation as a whole, or in the control technical room.

SHI TABLE 9.7 Important Information and Requirements for Control and Instrumentation

Power supply to buildings 3-phase 400 VAC ±10% 50 Hz

Type of control Data-based controller (DDC)

Input and output modules 0(2)—10 VDC or 0(4)—20 mA

Climate surroundings 0 to +50 °C and 1 0 to 90% relative humidity

Electronic norms/requirements IEC 60364/CENELEC HD384

Level of encapsulation IP54 (local components)

To ensure flexibility for possible later additions or changes, the instrumenta­tion has to be selected based on standardized subproducts using national or inter­national norms. These standards are mainly based on the measuring areas and signal types. Typical signals for input and output to the data-based controller (DDC and PLC) are

• Measuring and control signals as 0-10 VDC, 0(4)-20 mA, or 0.2-1 bar

• Sensors with receptor of thermal element, platinum or nickel (Pt 100, Pt 1000, Ni 1000)

Other important parts of the instrumentation are

• Local electromagnetic and pneumatic components, damper, and valve actuators

• Fuses, relays, and contactors for control of pumps, fan, light, energy, etc.

• Electrical safety