8.3
Maintenance and repair work
WARNING
Impermissible repair of the device
• Repair must be carried out by Siemens authorized personnel only.
WARNING
Impermissible repair and maintenance of the device
• Repair and maintenance must be carried out by Siemens authorized personnel only.
CAUTION
Hazardous voltage at open device
Risk of electric shock when the enclosure is opened or enclosure parts are removed.
• Before you open the enclosure or remove enclosure parts, de-energize the device.
• If maintenance measures in an energized state are necessary, observe the particular
precautionary measures. Have maintenance work carried out by qualified personnel.
WARNING
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
the inside of the device.
WARNING
Risk of explosion and release of harmful substances
Improper handling of lithium batteries can result in an explosion of the batteries.
Explosion of the batteries and the released pollutants can cause severe physical injury. Worn
batteries jeopardize the function of the device.
Note the following when handling lithium batteries:
• Replace the battery every 5 years.
• Replace the lithium battery only with the type recommended by the manufacturer.
The article number is A5E34734290.
• Do not throw lithium batteries into fire, do not solder on the cell body, do not recharge, do
not open, do not short-circuit, do not reverse polarity, do not heat above 100°C and protect
from direct sunlight, moisture and condensation.
Service and maintenance
8.3 Maintenance and repair work
SITRANS CC240 and SITRANS MX300
Operating Instructions, 06/2021, A5E47280695-AB
65
