User Manual

Rev5 MN890570 15of30
ULSX‐CALCONFIGURATION(continued) StepSeven
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Loop Fail‐Safe:This feature allowsyou to select the fail‐safe current
output if  the sensor fails to detect a return signal. When the sensor 
regainssignal, the output currentwill revertback to thecurrent level
condition.
o Hold Last Value‐The output will remain in the same state as
thelastechodetected.Example:Iftheoutputwas6.7mAjust
prior to the lost signal, the device will continue to output 6.7
mA.Sensorwillindicatethelevelwhensignalwasregain.
o Empty‐ The output will revert to the current value for an
empty condition.When “4 mA at Bottom” is selected, the
sensor will output 4 mA when a fail‐safe condition occurs.If
“20 mA at Bottom” is selected, the sensor will output 20 mA
whenafail‐safeconditionoccurs.
o Full ‐ The output will revert to the current value for a full
condition.When“4mAatBottom”isselected,thesensorwill
output 20 mA when afail‐safe condition occurs.If “20 mA at
Bottom” is selected, the sensor will output 4 mA when a fail‐
safeconditionoccurs.
o Overfill(21mA)‐Theoutputcurrentwillgoto21mAwhenthe
returnsignalislost.
o Overfill(22mA)‐Theoutputcurrentwillgoto22mAwhenthe
returnsignalislost.
Outputat Empty:Thisfeatureallowsyoutoselecttheorientationof
the 4 to 20 mA output (4 to 20 mA or 20 to 4 mA).Choose which
output setting best fits the application.Typical installations are set
with 4 mA at Bottom.This will not affect the performance of the
sensor other than the output of the Series ULS.ULSX‐CAL’s factory
default is 4 mA at bottom and 20 mA at top. When connecting  your
sensortoadisplay,youmustaccountforyouroutputsettings.
o 4 mA at Bottom‐The output current will be 4 mAwhen the
sensor measures an empty  tank and 20 mA when the sensor
measuresafulltank. 
o 20mAatBottom‐Theoutput
currentwillbe20mAwhenthe
sensor measures an empty tank and 4 mA when the sensor
measuresafulltank.
Note:Rightclickonanymenuthatyoumayhavequestionsontoopenthehelpmenu.
Note:Toreset,presstheClearScreenbutton.
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