Pepperl+Fuchs 6000 SERIES Installation And Operation Manual page 2

6000 Series Purge/Pressurization System
b
With regard to the supply of products, the current issue of the
following document is applicable:
The General Terms of Delivery for Products and Services of
the Electrical Industry, published by the Central Association
of the Electrical Industry (Zentralverband Elektrotechnik und
Elektroindustrie (ZVEI) e.V.) in its most recent version as
well as the supplementary clause: "Expanded reservation of
proprietorship".
I/O Manual