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English
SE58 L
ELECTRICAL CONNECTION AND GROUNDING INSTRUCTIONS
Always ensure that the transmitter and the sensor are grounded (earthed) correctly. The grounding of
the sensor and transmitter must ensure that the device and liquid are equipotential.
• Before connecting the power supply, verify that the main voltage is within the limits indicated on data plate.
• For the connections use only approved conductor, with fire-proof properties, whose section varies from
0.25 mm2to 1.50 mm2, based on distance/power; additionally fix the power supply wires with an additional
fastening system located close to the terminal.
• The power supply line must be equipped with an external protection for overload current (fuse or automatic
line breaker).
• Provide in close proximity of the transmitter a magnetothermic circuit breaker easily accessible for the
operator and clearly identified; whose symbols must conform to the electrical safety and local electrical
requirements.
• Ensure that the component complies with the requirements of the standard for electrical safety distance.
• Check chemical compatibility of materials used in the connection security systems in order to minimize
electrochemical corrosion. With aluminum housing should avoid direct contact between the ground
connection cable and the aluminum housing. It is therefore recommended to connect the safety ground
cable, by placing it between the washer and the metal bracket on the related terminal or use an eyelet
terminal crimped on the ground protection cable.
• Sensor’s hardwired inputs and outputs are connected to the transmitter through terminal blocks located
inside the transmitter.
• To locate the terminal block loosen the 4 screws on the terminal block cover. When the front cover is lifted,
the terminal block is visible. The terminal block is the hardwire connection of the transmitter to external
equipment, including the sensor.
• The following pages give informations on the terminal block numbering, and the respective connecting of
the sensor cables, and inputs/outputs.
• The mains power cables must have adequate values for the maximum current of the appliance, and the
cable used must house the standards of the IEC 60227 standard or the IEC 60245 standard.
N(-)
L(+)
ORING 4700
COVER
SCREW
GROWER