Service and maintenance
11
11.1 Basic safety instructions
WARNING
Use of a computer in a hazardous area
If the interface to the computer is used in the hazardous area, there is a risk of explosion.
● Ensure that the atmosphere is explosion-free (hot work permit).
WARNING
Dust layers above 5 mm
Risk of explosion in hazardous areas. Device may overheat due to dust build up.
● Remove dust layers in excess of 5 mm.
CAUTION
Releasing button lock
Improper modification of parameters could influence process safety.
● Make sure that only authorized personnel may cancel the button locking of devices for
safety-related applications.
NOTICE
Penetration of moisture into the device
Device damage.
● Make sure when carrying out cleaning and maintenance work that no moisture penetrates
the inside of the device.
SITRANS P320/P420 (mA/HART)
Operating Instructions, 06/2018, A5E44852162-AA 175
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