Siemens SITRANS P III serie Bedienungsanleitung Seite 32

WARNING
Hot, toxic or corrosive process media
Danger of injury during maintenance work.
When working on the process connection, hot, toxic or corrosive process media could be released.
● As long as the device is under pressure, do not loosen process connections and do not remove any parts that are
pressurized.
● Before opening or removing the device ensure that process media cannot be released.
WARNING
Improper connection after maintenance
Danger of explosion in areas subject to explosion hazard.
● Connect the device correctly after maintenance.
● Close the device after maintenance work.
Refer to Chapter "Connecting the device (Page 21)".
WARNING
Use of a computer in a hazardous area
If the interface to the computer is used in the hazardous area, there is a danger of explosion.
● Ensure that the atmosphere is explosion-free (hot work permit).
CAUTION
Releasing key lock
Improper modification of parameters could influence process safety.
● Make sure that only authorized personnel may cancel the key locking of devices for safety-related applications.
CAUTION
Hot surfaces
Danger of burns during maintenance work on parts having surface temperatures exceeding 70 °C (158 °F).
● Take corresponding protective measures, for example by wearing protective gloves.
● After carrying out maintenance, remount touch protection measures.
CAUTION
Hazardous voltage with open device in versions with 4-conductor extension
Danger of electrocution when the enclosure is opened or enclosure parts are removed.
● Disconnect the device before you open the enclosure or remove enclosure parts.
● Observe the special precautionary measures if maintenance is required while the device is live. Have maintenance
work carried out by qualified personnel.
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SITRANS P, DS III series (7MF4.33.. 7MF4.34.. 7MF4.35..)
A5E03434626-01, 08/2011