PRO-SVR_LEGACY
Page 6 of 10
Protection Modes and Indicators
The protection circuit on the DR-25 / MODEL 25 is triggered by a high DC offset condition. This is the only
protection available on this unit. Therefore, extra precautions should be taken to make sure the unit is OFF
before manipulating the connections.
When a high DC offset is present at the output, the protection circuit opens both output relays, even if the
condition is only present on one channel. If the relays are intermittently clicking, DC offset should be
monitored for a long period of time, to make sure DC offset caused that condition, and not the protection
circuit itself that is running out of specifications.
