Maintenance and servicing
5.1 Basic safety instructions
SITRANS P DS III
Service Manual, 06/2014, A5E34219855-01
31
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).
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.
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.
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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