JUMO dTRANS T02 Ex Betriebsanleitung Seite 42

!
Any electrical connection other than that specified in the
connection diagram may result in the destruction of the
instrument.
!
With supply networks that are subject to interference (e.g.
thyristor control units), the transmitter should be fed from an
isolating transformer.
!
Supply fluctuations are only permissible within the specified
tolerances (see Data Sheet).
Setup interface
The setup interface and the analog output are not
A
electrically isolated. This means that, in unfavorable
conditions and with a built-in transmitter, equalizing
currents may flow when the PC interface cable is
connected. The equalizing currents may damage the
affected instruments.
However, there is no danger if the output circuit of the
transmitter is electrically isolated from ground. If it cannot
be ensured that, with a built-in transmitter, the output circuit
is electrically isolated, one of the following safety measures
has to be taken:
Use a PC that is not directly coupled to ground (e.g. battery-
operated notebook), or disconnect the output of the
transmitter before connecting the PC interface.
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5 Installation
12