Endress+Hauser SOP300, Краткое руководство по эксплуатации

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About this document Overfill Prevention System SOP300
4 Hauser
1.1.3 Electrical symbols
Symbol Meaning Symbol Meaning
Direct current Alternating current
Direct current and alternating current Ground connection
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.
Protective ground connection
A terminal which must be connected to
ground prior to establishing any other
connections.
Equipotential connection
A connection that has to be connected
to the plant grounding system: This
may be a potential equalization line or
a star grounding system depending on
national or company codes of practice.
1.2 Text emphasis
Emphasis Meaning Example
Bold Keys, buttons, program icons, tabs, menus, commands Start → Programs → Hauser
In the File menu, select the Print option.
Angle brackets Variables <DVD drive>
1.3 Acronyms used
Acronyms Meaning
AC Alternating Current
AOPS Automated Overfill Prevention System
CPU Central Processing Unit
DC Direct Current
DHCP Dynamic Host Configuration Protocol
H High-Limit (upper warning limit)
HH HighHigh Limit (upper alarm limit)
HMI Human Machine Interface (e.g. operating panel)
L Low-Limit (lower warning limit)
LL LowLow-Limit (lower alarm limit)
NC Normally Closed
OPS Overfill Prevention System
MOPS Manual Overfill Prevention System
PLC Programmable logic controller (PLC)