Service and maintenance
Impermissible repair of explosion protected devices
Risk of explosion in hazardous areas
• Repair must be carried out by Siemens authorized personnel only.
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
Temperature sensors are essentially maintenance-free. However, we recommend
recalibration under the following conditions:
● Processes with strong vibrations or changes in temperature.
● Food, pharma, biotechnology applications (annually), TS300 only.
● Processes that demand high measuring accuracy and safety.
Define the recalibration intervals for the specific process or plant. With constant operating
temperatures and a low load, the reference values are as follows:
• < 2 years at temperatures up to 400 °C
• < 5 years at temperatures up to 200 °C
Compact Operating Instructions, 01/2018, A5E03920348-AE
penetrates the inside of the device.