Two Person Continuous Monitoring System
Total path to ground measurement is the apex of wrist strap constant monitoring. In contrast, resistance loop monitoring ignores the most vital part of an ESD control program, the total resistance of a system. The Sentinel V2 measures the ESD device and the human body down a 2 conductor path to the ground. This circuit differs from resistance loop monitoring in which the measurement is calculated with device resistors in a parallel path, halving the resistance for a truer, more accurate reading.
The Sentinel empowers you and your team to mitigate risk, direct corrective actions, reinforce learning, and better identify improvement opportunities more quickly and accurately.
Total path to ground
The Sentinel’s one-of-a-kind design is the first monitor to accurately display the resistance of the operator to the ground.
Total resistance to ground paints the picture from your point of view, as the operator, the source of voltage. The resistance equivalent of your dual conductor wrist strap is actually 500kR, a parallel path to the ground, and this is how the Sentinel reads it. Conversely, all other wrist strap monitors measure each side of the wrist strap in series, for a total wrist strap resistance of 2MR, which is incorrect.