SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06
351
Service and maintenance
12
12.1 Maintenance and repair
Maintenance
The devices are maintenance-free. Cleaning is unnecessary.
Siemens AG nevertheless recommends that you carefully clean the protective lens cover if it
becomes dirty, to ensure consistent reading performance.
Repair
If you send in a reader to Siemens AG for repair, do not send the protective lens cover,
lighting unit or other accessories.
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