User guide

RevA MN300282 19of34
CONFIGURATION(cont.) StepFive
HowtoDuplextworelays:DuplexenablesEchoSwitch®tousetworelaystoalternateaftereachcyclewhile
performingalead‐lagoperation.Tobegin,configure  tworelaysinthesame mode(ex:two relaysare setas
PUMPsthatFILLortworelayssetasPUMPsthatEMPTY).BesuretosetonerelaywithanONSetPointatthe
PrimaryLevelandtheotherrelayONSetPointattheBackupLevel.SettingtherelayswiththesameONlevel
willhavecausebothrelaystoturnonatthesame time.Oncethisiscompleted,seethestepsbelow.Example
belowshowstworelays(AandB)usedtoAutoEmptyatank:
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1. Make sure at least two relays are in the same
modeforpumps.
a. If this is not true, then M‐PLEX will not
appear.
2. InTOP‐LEVELMENUmode,selectM‐PLEX.
3. SelectDUPLEX.
a. If three relays are configured in the same
mode,continuetostep4.
b. If only two relays are configured, jump to
step5.
4. Select R1_R2 (Relay 1 & 2), R2_R3 (Relay 2 & 3)
orR1_R3(Relay1&3).
a. EchoSwitch® will  allow you to select two of
threerelaystoduplex.
5. SelectEXITtoreturntoTOP‐LEVELMENU.
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