All Integral, Compak™, and Super Seal™ model power supplies feature a Loss of Seal Indicator (LSI). The LSI alarm contacts are accessible for customer connection or can be integrated into an optional factory installed indicator.
The contacts are used as a switch to activate an alarm indication, warning the operator when the induction sealing power supply is not operating. The alarm contact does not change its state until the power supply is started.
The conditions that activate the contacts are either a loss of input power or a malfunction in the induction sealing power supply. The alarm condition only clears when the system is sealing. The LSI circuit includes a set of normally open and normally closed isolated relay contacts. Please contact us for the location and recommended installation procedure to incorporate the alarm circuit for each series power supply. The contacts are rated at 250 VAC at 3 amps.
The Integral and Compak™ series power supplies have a terminal strip available for the necessary connections. The Super Seal™ models are provided with an interconnection cable to connect the alarm and power source.
The contacts act as a switch to energize an optional alarm from an external power source. The external power source is required to ensure the alarm function operates when a loss of power condition occurs.
The most common application of the LSI is to energize an audible or visual alarm, alerting the operator to a problem condition.
The LSI function can be used with the optional stack light to alert operators of changes in operating conditions of thier induction sealer.