Servicing And Maintenance - Siemens SITRANS DS III Series Compact Operating Instructions

6

Servicing and maintenance

6.1 Basic safety instructions
WARNING
Impermissible repair of explosion protected devices
Danger of explosion in areas subject to explosion hazard.
● Repair must be carried out by Siemens authorized personnel only.
WARNING
Impermissible accessories and spare parts
Danger of explosion in areas subject to explosion hazard.
● Only use original accessories or original spare parts.
● Observe all relevant installation and safety instructions described in the instructions for the device or enclosed with the
accessory or spare part.
WARNING
Maintenance during continued operation in a hazardous area
There is a danger of explosion when carrying out repairs and maintenance on the device in a hazardous area.
● Isolate the device from power.
- or -
● Ensure that the atmosphere is explosion-free (hot work permit).
WARNING
Commissioning and operation with pending error
If an error message appears, correct operation in the process is no longer guaranteed.
● Check the gravity of the error
● Correct the error
● If the device is faulty:
– Take the device out of operation.
– Prevent renewed commissioning.
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.
32
SITRANS P, DS III series (7MF4.33.. 7MF4.34.. 7MF4.35..)
A5E03434656-02, 12/2012