page 53 of 91 USB-QFLCII-14804/0
9.3 Safe system shutdown
To shut down the system, proceed as follows:
• Turn off the main switch
• Secure the main switch against unauthorized reactivation (lock it with a
padlock)
• Turn off the explosion suppression unit, if applicable, to avoid an unintended
release or false trigger.
• Wait until all rotating components come to a stop and safeguard them.
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9.4 Inspection lid opening and closing
The inlet isolation device is equipped with an inspection lid for easy access
to the inside of the inlet isolation device when inspecting/maintenance/
servicing the device is required. See Section , 4.1.1 Inspection lid.
WARNING
Risk of physical harm
There is a danger of physical harm to personnel near the device.
Open the inspection lid only after the system is safely disconnected and after verifying
the flap blade is closed and locked.
Do not operate this inlet isolation device while the inspection lid is open!
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WARNING
Inhalation of dispersed dust, mist, vapor or direct contact with process
materials can cause health hazards
Please provide protective equipment for the operating staff such as:
a) Safety glasses
b) Gloves
c) Protective clothing
d) Full face masks with appropriate filter cartridges (protection class
depending on severity of dust hazard)
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