User guide

32of34 MN300282 RevA
APPENDIX(continued) StepEight
Troubleshooting
PROBLEM SOLUTION
TANKdoesnotappearon
themainmenu
Units function is set for PERCENT on EchoSwitch®:When Units is set
for PERCENT, the TANK function is disabled.To re‐enable TANK,
changeunitstoINCHES,CM,FEETorMETERS.
Displayalwaysjumpsto
theLOSTcondition
Check the dimensional configuration ( Height and Fill‐H) of the
EchoSwitch®.Makesure thattheFill‐Hsettingcorrespondstothefull
level of liquid (from the bottom up) and not the distance from the
sensortotheliquid(topdown).
M‐PLEXdoesnotappear
onthemainmenu
None of the relaysare configured the same:M‐PLEX will only appear
when2or3relaysareconfiguredasthesamefunction.Forexample,
twoormorerelaysareconfiguredasPumpsthatAutoFill.M‐PLEXwill
notappearifarelay isconfiguredasanAutoEmptyPumpandanAuto
EmptyValve.
DisplayshowsFULL Level of liquid is above the FILL_H setting:Check the  FILL_H setting,
making sure the FILL_H  setting is high enough so the level of liquid is
belowtheFILL_Hsetting
DisplayshowsEMPTY LevelofliquidisbeyondtheHEIGHTsetting:ChecktheHEIGHTsetting,
making sure the HEIGHT setting is low enough so the level of liquid is
abovetheHEIGHTsetting
PumpsorValvesdonot
alternate
1. M‐PLEXissetforNO‐ALTorA‐TIMEissetabove0:
a. If M‐PLEX is set for NO‐ALT, then the relays will not alternate.
ChangeM‐PLEXtoeitherDUPLEXorTRIPLXtobeginalternation.
b. IfA‐TIMEissetforanythingabove0hours,thenthepumpswill
only alternate after the A_TIME set has been reached.For
example, if A‐TIME is set for 3 hours, then the relays will only
switchafter each 3 hour period.To alternateafter each cycle,
changeA‐TIMEto0hours
2. TheONlevelsfortherelaysaresettothesamesetting.Changethe
ONsetpointtoanothervalue.
3. The DELAY is set for a period of time that has not been reached.
Example:ifdelaywassetto600,youmustwait10minutesbefore
therelaywilltrigger.
Relaycloses,butdoesnot
openagain
Aninductivekickmaybeholdingtherelayclosed.Ifswitching24VDC,
makesureadiodehasbeeninstalledtoactasasnubber.
Relaychattersonandoff
repeatedly
Mostlikelythe turbulenceinthe tankiscausingthe chatter.Increase
theHysteresissettingtocorrect.
Relaydoesnotinitially
switch.
Check the DELAY setting for the relay.The delay time must be met
beforetherelayswitches.Example:if delay  wassetto600, you must
wait10minutesbeforetherelaywilltrigger.
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