9
Notes for the Reader
Abbreviations and Terms
PNP
Current sourcing, positive logic
Prox.
Proximity switch
SET-UP
Self-learning installation
During commissioning and maintenance, the SET-UP procedure carries out
all the necessary settings for the generation of messages.
PLC
Programmable Logic Controller
a/f
Indicates the size of spanners [width across flats]
T.VIS
Tuchenhagen Valve Information System
TPE Thermoplastic
elastomer
U
Voltage
UL
Underwriters Laboratories
Underwriters Laboratories is an independent organization which tests and
certifies products with regard to their safety.
V+
DeviceNet
V-
Supply -DeviceNet
V AC
Volt alternating current
V DC
Volt direct current
W
Unit of measurement of power [Watt]
Inch OD
Pipe dimension acc. to British standard
(BS), Outside Diameter
Inch IPS
US pipe dimension
Iron Pipe Size
Abbreviation
Explanation
