M2 Instrumentation and Control, Third Edition

accuracy actuator adjustment amount analog applications capacitance capacitor cause chapter chlorine circuit circuit breakers coil communication conductors connected control system controlled variable converted designed devices diagram diameter differential pressure digital control electrical power electronic energy equipment factor feedforward feedforward control final control element flow rate flowmeter fluid force frequency function head loss horsepower hydraulic indicate induction motor input installation instrumentation insulation level switch liquid load loop magnetic maintenance manual measured mechanical meter monitoring motor control motor starter normally operation orifice plate output signal percent pipe Pitot tube pneumatic position process control proportional control pulse pump reactance relay remote rotating rotor SCADA sensor set point shown in Figure standard stator surge synchronous tank telemetry temperature Thermowell torque total head transmission transmitted turbine typically upstream valve velocity Venturi Venturi meter voltage water utility weir wire