Consider this control system, set up to maintain the temperature of a chemical reactor vessel at a constant (“setpoint”) value.…
On the job, you are sent to troubleshoot a brand-new control system, consisting of a pneumatic liquid level transmitter connected…
Consider this control system, set up to maintain the temperature of a chemical reactor vessel at a constant (“setpoint”) value.…
Liquid Level Switch Control Logic A form of liquid level switch called a tilt switch is often used for detecting…
Determine the functions of all pressure switches and relays in this steam boiler monitoring circuit, and what each of their…
Determine the statuses of all lamps and relay coils in this circuit, given the following process conditions: Flow = 4…
How Overload Heaters used to Automatically Shut the Motor OFF & Prevent Damage ? Some common components of three-phase motor…
Identify which lamp in the following ladder-logic diagram is the high-flow alarm and which is the low-flow alarm.
Two pressure switches are plumbed together so as to receive the exact same pressure at all times, and they both…
An alternative to the conventional schematic diagram in AC power control systems is the ladder diagram. In this convention, the…
