JUMO 707020 dTRANS T02Ex - Four-Wire Transmitter Operating Manual - Handbuch (Seite 57)

13
5 Installation
Installation notes

The choice of cable, the installation and the electrical
connection must conform to the requirements of VDE 0100
“Regulations on the Installation of Power Circuits with Nominal
Voltages below 1000 V” or the appropriate local regulations.
 The electrical connection, as well as work inside the unit, must
only be carried out by qualified personnel.

If contact with live parts is possible while working on the unit, it
must be completely disconnected from the supply.
 A current limiting resistor (safety function) protects the supply
circuit in the event of a short-circuit in the transmitter. The
external fusing of the supply should not be rated above 1A
(slow).
 Stray electromagnetic fields, e.g. from transformers, mobile
phones or electrostatic discharge must be avoided in the
vicinity of the transmitter.
 Do not install inductive loads (relays, solenoid valves etc.) close
to the transmitter. Fit RC or spark quenching combinations, or
free-wheeling diodes, for interference suppression.
 Run input, output and supply cables separately and not parallel
to one another. Run out/return cables next to each other and
twist them, if possible.
 Route input and output cables without any connection to the
mains supply as twisted and screened cables. Earth the screen
on the instrument side.
 Do not connect any additional loads to the supply terminals of
the instrument.

The transmitter is intended for rail mounting outside the
hazardous area.