Lumel RE60, Руководство пользователя, Страница: 12 / 32

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3.4. Installation recommendations
In order to obtain a full fastness against electromagnetic noise in
an environment with unknown noise level, it is recommended to
observe following principles:
- do not supply the controller from the network, in the proximity
of devices generating high pulse noise and do not apply common
earthing circuits,
- apply network filters,
- apply metallic shields in the shape of tubes or braids to conduct
supplying wires,
- wires leading measuring signals should be twisted in pairs,
and for resistance sensors in 3-wire connection, twisted of wires
of the same length , cross-section and resistance, and led in
a shield as above,
- all shields should be one-side earthed or connected to the protective
wire, the nearest possible to the controller,
- apply the general principle, that wires leading different signals
should be led at the maximal distance between them (no less
than 30 cm), and the crossing of these group of wires made
at right angle (90
o
).