Maintenance And Repair Work - Siemens SITRANS FC430 Bedienungsanleitung

6.3

Maintenance and repair work

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
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
Humid environment
Danger of electric shock.
● Avoid working on the device when it is energized.
● If working on an energized device is necessary, ensure that the environment is dry.
● Make sure when carrying out cleaning and maintenance work that no moisture penetrates the inside of the device.
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.
WARNING
Enclosure open
Danger of explosion in hazardous areas as a result of hot components and/or charged capacitors inside the device.
Proceed as follows to open the device in a hazardous area:
1. Isolate the device from power.
2. Observe the wait time specified in the operating instructions or on the warning sign before opening the device.
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.
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SITRANS FC430 with HART (7ME4613, 7ME4603, 7ME4623, 7ME4713)
A5E03736889 -01, 03/2012