Tecfluid MX4 For FLOMID Series - Manual (Page 16)

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2.1.2 Remote converter
One of the ends of the cable has a header and two wires, to connect them to the sensor.
The connection is as explained in point 2.1.1.
The other end has to be connected to the converter, and has five wires. The cable must
be passed through the cable gland and the connection for each wire is explained in
chapter 3.
2.2 Electrical connection
For the electrical installation, the MX4 converter has two terminal strips. To help in the
wiring of the equipment, the description of the terminals is marked on a label in the rear
cover of the device.
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 cable glands used
are for cables with outside diameters between 3.5 mm and 10 mm
To connect the cables, peel the outside insulation to free the inner cables. It is
recommended to put a terminal at 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.
Incorrect installation of the cable gland or inadequate cable placement can cause
irreparable damage to the converter.
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.
IMPORTANT NOTE: To ensure smooth operation of the equipment, it is recommended to
make the connection paying attention to the following points:
 For the output signals, use shielded cable when possible.
 Keep the cables away from strong sources of noise.
2
INSTALLATION OF THE ELECTRONIC CONVERTER