Siemens SITRANS MASS 2100 Compact Operating Instructions page 42

Service and maintenance
6.3 Maintenance and repair work
Humid environment
Risk 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
Hot parts in the device
Temperatures that can burn unprotected skin may be present for some time after the device
has been switched off.
● Observe the waiting time specified in Technical data (Page 47) or on the device before
Enclosure open
Risk of explosion in hazardous areas as a result of hot components and/or charged capacitors
inside the device.
To open the device in a hazardous area:
1. Isolate the device from power.
2. Visually inspect sensor inlet and outlet.
Exception: Devices exclusively having Intrinsic safety (Ex i) may be opened in an energized
state in hazardous areas.
Hot, toxic or corrosive process media
Risk 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
● Before opening or removing the device ensure that process media cannot be released.
42
WARNING
the inside of the device.
CAUTION
starting with maintenance work.
WARNING
WARNING
remove any parts that are pressurized.
SITRANS MASS 2100 & FC300 (FCT010)
Compact Operating Instructions, 05/2020, A5E40504094-AB