
DANGER
Risk to life due to electric shock
An improperly earthed product is potentially fatal in the event of a fault.
► Connect the product galvanically with the earthed vacuum chamber.
► Ensure that the connection complies with the requirements of a protective bonding according to
EN 61010. (CF and VCR connections comply with this requirement.)
► Use electrically conductive centering rings and circlips for KF connections.
Risks during operation
WARNING
Risk of injury resulting from overpressure in the vacuum system
Opening tensioning pieces with an overpressure
> 1000 hPa
in the vacuum system can lead to inju-
ries as a result of flying parts, and escaping process medium could prove harmful to health.
Elastomer seals in KF connections (e.g. O-rings) are not resistant to pressures
> 2500 hPa
. This
could prove harmful to health due to escaping process medium.
► Do not open any tensioning pieces when overpressure is prevalent in the vacuum system.
► Use suitable tensioning pieces for overpressure.
► Use tensioning pieces which can only be opened and closed using a tool (e.g. tightening strap-
circlip).
► Use sealing rings with an outer centering ring.
Risks during maintenance
DANGER
Danger to life from electric shock caused by moisture ingress
Water that has entered the unit will result in personal injury through electric shocks.
► Only operate the unit in a dry environment.
► Operate the unit away from fluids and sources of moisture.
► Do not switch on the unit if fluid has entered it. Instead contact Pfeiffer Vacuum Service.
► Always disconnect the power supply before cleaning the unit.
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
► Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
► Decontaminate affected parts before carrying out maintenance work.
► Wear protective equipment.
WARNING
Health hazards due to cleaning agent
The cleaning agent being used causes health hazards which could include, for example, poisoning,
allergies, skin irritations, chemical burns or damage to the airways.
► When handling cleaning agents, observe the applicable regulations.
► Adhere to safety measures regarding handling and disposal of cleaning agents.
► Be aware of potential reactions with product materials.
Safety
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Содержание TPR 271
Страница 1: ...OPERATING INSTRUCTIONS EN Translation of the Original TPR 270 TPR 271 Pulse Pirani gauge...
Страница 39: ...39 40...
Страница 40: ...PG0014 ed E Date 2212 P N PG0014BEN...