Maintenance 75
03/2016 CFPP Process Analyzer CFPP-4.2
10.7 Checking the residual-current device (RCD)
Should only be performed by a qualified electrician.
Personal protective
equipmente
Safety goggles
Protective gloves (hazardous materials)
Required material
Software manual
Procedure 1. Ensure that the ambient atmosphere is not explosive.
!
Danger of explosion due to open ignition sources
!
The control box contains ignition sources. Opening the control box c
an
cause explosion of potentially explosive atmosphere.
• Avoid measures see chapter 2 „Safety“.
1. Turn the
Explosion protection
key switch to the
Off
position.
2. Open the control box.
3. Activate the test button
T
once every six month at least, if no other regional or
application-specific additional tests are specified.
The RCD must trigger.
10.7.1 Measures after the RCD has triggered
1. If the RCD has triggered, switch it back on.
2. Close the control box and secure the connections with safety bolts.
3. Turn the
Explosion protection
key switch back to the
On
position.
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