Amherst, N.H.-based ControlAir Inc. equipped its 900X series electronic pressure regulators to provide that precise control by means of an electronic feedback system. The 900X pressure regulators convert voltage signals into proportional pneumatic outputs to provide precision control in grinding machinery applications, among others. The 900X regulators can be mounted on a wall, panel, pipe, or rail. The piezo-actuator provides the desired pressure up to 100 lbs. Maintaining Faultless Motor Voltage Voltage faults caused by electrical variations can cause electrical motors, elevators, and escalators to fail prematurely.
Operators select the monitor's nominal input voltage by turning a knob.
When all voltages are acceptable, the output relay energizes and a light-emitting diode indicator lights green. In the event of a fault in voltage, the LED flashes green during the trip delay, then glows red when the output relay de-energizes. The monitor resets automatically when the fault is corrected. Accurate Vision Inspection by John DeGaspari Retina Systems Inc. of Seymour, Conn., a manufacturer of high-speed, noncontact vision inspection systems, decided to add an innovative feature to its units. The upgrade required the addition of a micrometer dial and a digital readout that makes it possible for the system to be easily adjusted to measure parts of different sizes.