Manual

6of16 MN301040 RevB
SAFETYPRECAUTIONS StepFive
AboutthisManual:PLEASEREADTHEENTIREMANUALPRIORTOINSTALLINGORUSINGTHISPRODUCT.
This manual includes information on all  versions of the  DeltaSpan™ Series Pressure Level Transmitter from
Flowline;modelsLD31‐S3__,LD31‐S4__,LD32‐S3__andLD32‐S4__.Pleaserefertothepartnumberlocated
onthetransmitterlabeltoverifytheexactmodelwhichyouhavepurchased.
User’s Responsibility for Safety:Flowline manufactures a wide range of liquid level sensors and
technologies.Whileeachofthesetechnologiesaredesignedtooperateinawidevarietyofapplications,itis
the user’s responsibility to select a technology that is appropriate for the application, install it properly,
perform tests of the installed system, and maintain all components.The failure to do so could result in
propertydamageorseriousinjury.
ProperInstallationandHandling:Onlyproperly‐trainedstaffshouldinstalland/orrepairthisproduct.Use
apropersealantwithallinstallations.Alwayscheckforleakspriortosystemstart‐up.
Wiring and Electrical:CAUTION: Do not exceed specified supply voltage rating of 28 VDC.Permanent
damagenotcoveredbywarrantywillresult.Thisdeviceisnotdesignedfor120or240voltACoperation.Use
onlyon10to28VDC.
Temperature and Pressure:The LD31 and LD32 seriesare designed for use in application temperatures
from‐18°to80°C(0°to176°F).Bothseriesaredesignedforuseatpressuresupto2xthefullspan.
MaterialCompatibility:Bothseriesaremadeof316StainlessSteel(316SS),316LStainless Steel(316LSS)
with a cable of Polyurethane or Ethylene Tetrafluoroethylene (ETFE).The LD31 series has a bullet nose of
PolyvinylChloride(PVC).Makesurethatthe modelwhichyouhaveselectedischemicallycompatiblewiththe
applicationliquids.
Flammable,ExplosiveandHazardousApplications:TheLD31/LD32seriesisULlistedforuseinHazardous
(Classified) Locations.The protection method is by Intrinsic Safety, “ia”.It was investigated by UL under UL
Standard913SixthEditionandCSAStandardNo.157‐92.
ForuseinHazardous(Classified)Locations:
 Class
IDiv.1GroupsA,B,C,D;
 ClassIIDiv.1GroupsE,F,G;
 ClassIIIDiv.1;
 TemperatureCode:T4@80°Cambient;
 InstallinaccordancewithcontroldrawingM2‐196008‐03.
Make a Fail‐Safe System:Design a fail ‐safe system that accommodates the possibility of transmitter
failure or battery power loss.In c ritical applications, Flowline recommends the use of redundant backup
systemsandalarmsinadditiontotheprimarysystem.
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