Service and maintenance
10
10.1 Service and maintenance
Cleaning the device
The device is designed for low-maintenance operation. Nevertheless, you must regularly clean
the device.
Note
Switch the device o for cleaning
Clean the device only when it is switched o.
For cleaning, use a soft cloth moistened either with water or a mild cleaning agent. Use only
dishwashing detergent or foaming detergent.
Procedure
Spray the cleaning agent on to a cleaning cloth. Never use caustic solvents or abrasive cleaners.
Note
Avoid damage
Do not clean the device using compressed air or steam jets because they can damage it.
Checking the device
In order to prevent foreign bodies or liquids entering the device, regularly check the device for
the following:
• Ensure that all the housing screws are in place and tight
• For damage to the housing
• For damage to the cable cover or cable entry
Protect the device from environmental eects
Protect the device against the following environmental factors:
• Direct sunshine and heat sources
• Mechanical vibration and shock
• Dust
• Humidity
• Strong magnetic elds
NCU 1740
Equipment Manual, 10/2021, A5E51087503B AA 91
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