Pepperl+Fuchs VisuNet EX2 GMP RM/PC 3700 Series Hardware Manual page 60

VisuNet EX2 GMP RM/PC 3700 Series
Appendix
Tetrahydrofuran
■
Slight discoloration
Intense examinations established that the following products caused slight discoloration:
Mustard
■
Tomato juice
■
Tomato ketchup
■
Lemon juice
■
Tea
■
Coffee
■
Note!
Various other substances may cause the surface structure to alter. Testing and subsequent
assessment still require clarification.
4.5 Change the keyboard EXTA3-K**
Assemly, commissioning, operation, maintenance and dismounting of any device may only be
carried out by trained, qualified personnel.
Caution!
Fault / Fail completely
Devices or any connected facilities or systems may develop a fault or fail completely.
Consider the ESD safety measures.
4.5.1 Dismount a keyboard EXTA3-K*
Dismount a keyboard
1. Separate the silicon joint between housing and keyboard. Use a sharp edged tool for examle
a knife or a scalpel.
2. Open the bottom plate.
3. Remove the cable from the board: Pull the cables (1). Declamp the PE connector (2)
Declamp the cable clamp (3).
4. Remove the mounting rail of the keyboard. Remove the lock nuts. Remove the rails.
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