Tecfluid XT5 - Manual (Page 4)

1 INTRODUCTION
The XT5 converter is an electronic equipment that adapts to the Flomid and Flomat series
electromagnetic flow sensors. The microprocessed electronic circuit offers the following
benefits:
 Excitation of the coils by means of pulsed signal to obtain a minimal zero offset.
 Pulse and analog current outputs proportional to the flow rate and user
configurable.
 Local and separate mounting.
 Easy interchangeability with other sensors.
 Display orientable 180º to adapt to the installation position.
 HART TM protocol compatibility (XT5H model).
2 ELECTRICAL CONNECTION
For the electrical connection, the XT5 has a screw terminal strip.
For the electrical installation it is recommended to use multiple conductor cables with
individual cable sections in the order of 0.25 to 0.5 mm
2 in order to make it easier to
connect. It is better to maintain the cables with mains voltage (power supply) separated
from the cables with low level signals (4-20 mA etc.).
Before starting the installation, check that the cable glands are the right size for the cables
to be used, this will guarantee the instrument will stay watertight. The PG 11 cable glands
used are for cables with outside diameters between 6 mm and 10 mm.
Peel the outside insulation to free the inner cables. It is recommended to tin the ends of
the wires to avoid loose ends. Pass the cables through the cable glands and screw down
in the corresponding positions of the terminal strip. Once the wiring is finished make sure
that the cables are well gripped by the cable glands to maintain the degree of protection.
IMPORTANT NOTE: In order to comply with the electrical safety requirements as per EN-
61010-1 (IEC 1010-1), the installation of the equipment must take into account the
following:
 A mains switch must be provided to disconnect the equipment. This switch must
be marked as the disconnecting device for the equipment and be within easy
reach of the operator.
 The mains supply must have an earth line.
 The housing must not be opened when the instrument has mains supply
connected.
Before starting to install the equipment, check that the supply voltage available is the
same as marked on the label of the instrument.
To help in the connecting of the equipment, the description of the terminals is marked on
the printed circuit next to the terminal strip.
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