Time Mark - Model 171 Series - AC Current Monitor for Detecting Undercurrent Conditions
The Model 171 from Time Mark Corporation is an AC current monitor rigorously designed to identify undercurrent conditions. It features a unique microcontroller-based circuit that continuously monitors current via an integral shunt resistor, consequently actuating an electromechanical SPDT relay. The system includes dual status indicators to display relay operations, fault conditions, and timing events. An adjustable trip delay feature curtails unwanted trigger events, while an adjustable restart delay supports operations where sequential load start is necessary. Despite its out-of-stock status, the 171 model remains a vital solution for industries requiring stringent current monitoring. Its standard configurations consist of 8-Pin integration, 1A relay contact ratings, and a functioning voltage of 120VAC, ensuring compatibility with diverse industrial environments.
The Model 171 is an AC current monitor for detecting undercurrent conditions. The monitor contains a proprietary microcontroller-based circuit monitoring current passed through an internal shunt resistor and driving an electromechanical SPDT relay. Two status lights are provided to indicate relay status, fault condition, and timing. An adjustable trip delay is provided to prevent nuisance tripping and an adjustable restart delay has been provided for applications requiring a delay to start an additional load.