Glossary; Symbols; Terms - Siemens Acvatix SAS31.03 Manual

ClosedPosition-
Synchronisation
DIL switches
DN
Fail safe function
kPa
k
vs
LED
Idle stroke
PN
Position feedback
Forced control
Siemens
Building Technologies
7

Glossary

7.1

Symbols

Caution, general danger – read the notes!
Caution, hot surface – read the notes!
Condition as supplied to costumer
Crosstip screwdriver (Pozidriv)
Slotted screwdriver
Screw wrench
Allen key
7.2

Terms

The Synchronisation of the mechanical position and the internal position control will
be performed (after manual operation).
A DIL switch shows the switching choices in the form of a place value system (dual
in line) in relation to basis 2 (on and off).
Nominal size [mm]: Characteristic for matching parts of the piping system.
The fail safe function ensures that the actuator is driven to a defined end position
also in the event of a power failure. In normal situations, dampers are shut or
valves closed, thus cutting off the medium flow.
Unit of pressure: 100 kPa = 1 bar = 10 mWS.
Nominal flow rate: Nominal flow rate of cold water (5...30 °C) through the fully
open valve (H ) at a differential pressure of 100 kPa (1 bar).
100
Light emitting diode.
The actuator stem lifts off the valve stem slightly (0.2 mm), so that the valve closed
securely. If the valve opens again, this idle stroke has to be overcome, before the
valve really opens (valve characteristic has an effect).
PN class [bar]: Characteristic relating to the combination of mechanical und
dimensional properties of a component in the piping system.
Signal used to acquire the position, fed back via an input.
Forced control serves for overriding automatic mode and is implemented in the
structure.
Actuators SAS.., SAT.. for valves
Glossary
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CE1P4041en
2015-05-19