The CD 3R provides redundant control as a backup for a primary control system (e.g. Contegra's Station Master 703).  The CD 3R redundant controller provides backup in case the primary controller failure.  The CD 3R’s outputs are wired in parallel with the primary system’s control contacts.  The CD 3R can use either two float switch On/Off inputs, for differential level control, or a single abnormal level float switch input with a “timed off” function.  The CD 3R’s “timed off” function is a programmable off-delay timer that continues the pump(s) operation after the single ‘abnormal level’ switch has opened.  The off-delay timer is adjustable from 0-10:00 minutes.  The alarm circuit automatically silences and resets following the end of each pumping cycle.

Learn more >  10141-0001-03 CD-3R