7.3
Maintenance and repair work
WARNING
Impermissible repair of explosion protected devices
Risk of explosion in hazardous areas
● Repair must be carried out by Siemens authorized personnel only.
WARNING
Improper connection after maintenance
Risk of explosion in areas subject to explosion hazard.
● Connect the device correctly after maintenance.
● Close the device after maintenance work.
Refer to Connecting (Page 21).
CAUTION
Hot surfaces
Risk 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.
7.3.1
Hot parts in the device
CAUTION
Hot parts in the device
Temperatures that can burn unprotected skin may be present for some time after the device
has been switched off.
7.4
Return procedure
Enclose the bill of lading, return document and decontamination certificate in a clear plastic
pouch and attach it firmly to the outside of the packaging.
Service and maintenance
7.4 Return procedure
SITRANS I300 Isolating power supply with EIA-485 interface
32
Operating Instructions, 01/2019, A5E45099319-AA
