Flowline LU78 EchoSwitch - Manual (Page 22)

22 of 34 MN300282 Rev A
CONFIGURATION (cont.) Step Five
How to Time Alternate relays: This function is only operational when two or more relays are configured as
pumps performing the same function (either filling or emptying). This function is useful when a complete
cycle of the pumps cannot be guaranteed such as a continuous inflow to a sump. Thus one pump may run
longer than the other pump. To insure equal wear of both pumps, the alternating cycle can be set up on a
timer. Thus the lead and lag pumps will be switched based on time rather than a cycle basis.
1. Make sure at least two relays are in the same
mode.
a. Example: two relays are set as PUMPs that
FILL or three relays are set as PUMPs that
EMPTY).
b. If this condition is not met, M‐PLEX will not
appear.
2. In TOP‐LEVEL MENU mode, select M‐PLEX.
3. Select DUPLEX or TRIPLX.
4. Select A‐TIME.
5. Select HOURS.
6. Using the UP and DOWN buttons, set the
Alternating Time in Hours.
a. Alternating Time can be set from 0 to 600
hours.
7. To enter the value, press and hold SELECT for 2
seconds and release. SAVED will display.
8. Select EXIT to return to TOP‐LEVEL MENU.