Lumel RE22, Руководство пользователя и краткое руководство по началу работы

Страница: 19 / 20

PL EN
19
Installation recommendations
The RE22 controller fulfils requirements concerning the fastness
against electromagnetic interference occurring in the industrial
environment acc. to obligatory standards.
In order to obtain a full immunity of the controller against electro-
magnetic interference in an unknown environment interference level
it is recommended to observe following principles:
- do not supply the controller from the network near devices generating
high impulse interference and do not use common earthing circuits
with them,
- apply network filters,
- apply metallic shields in the shape of tubes or braided screens to
conduct supplying wires,
- wires supplying the measuring signal should be twisted in pairs,
and for resistance thermometers in a 3-wire connection, twisted from
wires with the same length, cross-section and resistance, and led
in a shield as above,
- all screens should be one side earthed, and led the nearest possible
to the controller,
- apply the general principle that wires leading different signals should
be led the farthest possible between them (not less than 30 cm),
and their crossing executed at a right angle.