INFICON Gemini ATM to Ultra-High Vacuum Gauge - Manual (Page 26)

26 tina83e1-a (2014-02)
When making a CF flange connection, it may be ad-
vantageous to temporarily remove the electronics unit.
Hexagon socket AF 2
Protective lid
Keep the protective lid.
WARNING
WARNING: electric arcing
Helium may cause electric arcing with detrimental
effects on the electronics of the product.
Before performing any tightness tests put the pro-
duct out of operation and remove the electronics
unit.