I am continually receiving alarms that say one (or more) of my sensors are "unplugged" and then a few minutes later I get a "clear" alarm for that sensor. How can this be corrected?

I am continually receiving alarms that say one (or more) of my sensors are "unplugged" and then a few minutes later I get a "clear" alarm for that sensor. How can this be corrected?

Some customers with DC-powered units (Watchdog 1200, Watchdog 1000) have found that grounding the chassis of the unit to an isolated ground point in their rack helps in this situation. The Watchdog 1200 and Watchdog 1000 contain a 10-32 threaded hole on the back of the unit which is used for grounding purposes.