Glossary
SIPART PS2 with and without HART
282 Operating Instructions, 10/2013, A5E00074631-11
National Electrical Manufacturers Association. NEMA is a standardization institute in the
USA. NEMA was formed in 1926 with the merger of Associated Manufacturers of Electrical
Supplies and the Electric Power Club.
An enclosure standard of the National Electrical Manufacturers Association. The NEMA 4
compliant devices are suitable for use in indoor and outdoor applications. Protection is
provided against dust particles, rain as well as spray and splash water.
The same protection like NEMA 4. Additional protection of the enclosure from corrosion.
Individual parameter settings are specifically changed to adjust the positioner as per the
actuator or other requirements. Parameter assignment is carried out after the complete
commissioning of the positioner.
Name of a physical phenomenon. Due to mechanical compression loads on a crystal, an
electric potential develops on specific crystal surfaces. In a reverse case, applying an electric
field to specific crystal surfaces leads to crystal deformation.
Potentially explosive gaseous atmosphere
Mixture of air, combustible gases, vapors, mists or dusts.
PDM is a Siemens software package for project planning, parameter assignment,
commissioning and maintenance of network configuration and field devices. Part of SIMATIC
Step7. Is used for configuration and diagnostics.
PROFIBUS stands for process fieldbus. PROFIBUS is a vendor-independent standard for
networking field devices (e.g. PLCs, actuators, final control elements, and sensors).
PROFIBUS is compatible with protocols such as DP (decentralized peripherals), FMS
(fieldbus message specification) and PA (process automation).
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