8013156/U878 /2010-05-01 ©SICKAG•Germany•Subjecttochangewithoutnotice 23
Operating Instructions LFH
Failure Possible cause Procedure
Signal span dropping off/too small
Diaphragmisdamaged,e.g.through
impact,abrasive/agressivemedia;corro-
sionofdiaphragm/pressureconnector;
transmissionuidmissing.
Contactthemanufacturerandreplacethe
instrument
Signal span drops off Moisturepresent(e.g.atthecabletail) Installthecablecorrectly
Signal span erratic or incorrect Workingtemperaturetoohigh/toolow
Ensure permissible temperatures as per
theOperatingInstructions
Abnormalzeropointsignal
Mediumorambienttemperaturetoohigh/
too low
Controltheinternaltemperatureofthe
instrumentwithinthepermissiblerange;
observetheallowabletemperatureerror
(seeOperatingInstructions)
Diaphragmisdamaged,e.g.through
impact,abrasive/agressivemedia;corro-
sionofdiaphragm/pressureconnector.
Replace instrument
Workingtemperaturetoohigh/toolow
Ensure permissible temperatures as per
theOperatingInstructions
Zeropointsignalunstable/toolow/high Moisturepresent(e.g.atthecabletail)
Installthecablecorrectly,
lterelementinsertion
Hot instrument case surface
Permissible ambient or medium tempera-
ture exceeded
Ensure permissible ambient/medium
temperaturelimitsareobserved(see
OperatingInstructions)
7. Starting, operation / 8. Maintenance, accessories 9.Troubleshooting
*) Makesurethataftertheassemblytheunitisworkingproperly.Incasetheerrorcontinuestoexist.
Iftheproblempersists,contactoursalesdepartment.