Siemens SIPART Series - 4.4 Using the positioner in a humid environment

Installing/mounting
4.4 Using the positioner in a humid environment
SIPART PS2 with and without HART
44 Operating Instructions, 10/2013, A5E00074631-11
See also
Preparing part-turn actuators for commissioning (Page 132)
4.4
Using the positioner in a humid environment
Introduction
This information contains important notes for the installation and operation of the positioner
in a wet environment with frequent and heavy rains and/or continuous tropical dew. The IP66
degree of protection is no longer adequate in this environment, especially when there is a
risk of water freezing.
Favorable and unfavorable mounting positions
Avoid the unfavorable mounting positions:
● To prevent fluids seeping through during normal operation of the device, e.g. through
exhaust air openings.
● Otherwise the display becomes poorly legible.
Figure 4-8 Favorable and unfavorable mounting positions
Additional measures to prevent liquids from seeping through
Take additional measures to prevent liquids from seeping through if the conditions force you
to operate the positioner in an unfavorable mounting position.
Additional measures required to prevent liquids from seeping through depend on the
selected mounting position. You may also require:
● Gland with sealing ring, e.g. FESTO: CK - 1 / 4-PK-6
● Approximately 20 to 30 cm plastic hose, e.g. FESTO: PUN - 8 x 1.25 SW
● Cable tie; the number and the length depend on the local conditions.