SICK PBS Series

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Operating Instructions PBS
3.Signs,symbolsandabbreviations/4.Function
5. For your safety
5. For your safety
 Select the appropriate pressure switch with regard to scale range, performance
andspecicmeasurementconditionspriortoinstallingandstartingtheinstru-
ment.
 Observetherelevantnationalregulations(e.g.:EN50178)andobservethe
applicablestandardsanddirectivesforspecialapplications(e.g.withdangerous
mediasuchasacetylene,ammablegasesorliquidsandtoxicgasesorliquids
and with refrigeration plants or compressors). If you do not observe the appro-
priate regulations, serious injuries and/or damage can occur!
 Open pressure connections only after the system is without pressure!
 Pleasemakesurethatthepressureswitchisonlyusedwithintheoverloadthresholdlimitallthe
time!
 Observetheambientandworkingconditionsoutlinedinsection7„Technicaldata”.
 Observethetechnicaldatafortheuseofthepressureswitchinconnectionwithaggressive/
corrosivemediaandfortheavoidanceofmechanicalhazards.
 Ensurethatthepressureswitchisonlyoperatedinaccordancewiththeprovisionsi.e.as
described in the following instructions.
 Do not interfere with or change the pressure transmitter in any other way than described in
these operating instructions.
 Removethepressureswitchfromserviceandmarkittopreventitfrombeingusedagainacci-
dentally, if it becomes damaged or unsafe for operation
 Take precautions with regard to remaining media in removed pressure transmitter. Remaining
media in the pressure port may be hazardous or toxic!
 Haverepairsperformedbythemanufactureronly.
 Opencircuitbeforeremovingconnector.
Warning