The Desco 19330 Full-Time Continuous Monitor is a single workstation continuous monitor. It continuously monitors the wiring of an AC outlet, path-to-ground integrity of one operator, and the ground plane of one ESD worksurface. Mounting tabs make it suitable to install in workbench or equipment settings. The embedded relay terminal activates when a pass condition is displayed on the monitor and can be connected to machines for access control or other devices.

The Full-Time Continuous Monitor is designed with Wave Distortion Technology to provide stable continuous monitoring of the path-to-ground and presence of one megohm resistance of an operator’s wrist strap. Audio and visual alarms activate in less than 500 milliseconds when the operator unintentionally disconnects from the monitor or the wrist strap connection points are intermittent. The Full-Time Continuous Monitor also monitors for a worksurface path-to-ground of less than ten megohms and the integrity of the electrical ground used to by the monitor. This Full-Time Continuous Monitor is calibrated to NIST standards.

Wave Distortion Technology is the most reliable technology for the continuous monitoring of Single-Wire (Conductor) Wrist Straps. 'Wave Distortion' or vector impedance works by applying a continuous test voltage of 1.2 volts peak-to-peak at one to two microamperes (0.000002 amperes) to the wrist strap that is connected to the continuous or constant monitor. The test voltage creates a square wave that the monitor circuit compares to established patterns. By monitoring the 'distortions,' or shape of the square wave, Wave Distortion Technology determines if the monitored circuit is complete - the operator is in the circuit and the total equivalent DC resistance is within specifications. Wave Distortion Technology produces a very fast alarm time and minimal false alarms.