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5. For your safety
5. For your safety
Select the appropriate pressure switch with regard to scale range, perfor-
„
!
mance and specific measurement conditions prior to installing and starting
the instrument.
Warning
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, flammable gases or liquids and toxic
gases or liquids and with refrigeration plants or compressors). If you do not
observe the appropriate 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 aggres-
„
sive / 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
„
accidentally, 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.
„
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio
GB
PSD-30
5
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