The output circuit will remain on at any moderate voltage above the switch setting (with no damage to the switch), and then turn off as the voltage falls below 10% of the turn on setting.
If you want the VAS to turn on at 100 volts it will stay on until the voltage drops back to 90 volts or less, at 200 volts it will turn off at 180 volts. This hysteresis is required to prevent chattering between the on and off state. Standard SRT policy on all of our VAS's is to use a hysteresis of 10%, but this can be changed moderately to accommodate customer requirements.
These units have consistent switching repeatability and are easy to retro-fit to an existing system, or they can be implemented into a variety of new systems. Applications can include computerized Building Control Systems (BCS), Energy Management Systems (EMS), and safety shutdown control of systems.
Engineers at SRT are available to discuss any questions you might have on any of our products. Often we are asked to customize or prepare special calibrations on our sensors to suit customer needs. Please contact us at (800) 447-6805 and ask for Dayle Smith or Doug McNutt, or FAX us at (719) 634-2601, or send E-mail to firstname.lastname@example.org.
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