4
NT935BH
SAFETY REGULATIONS
ATTENTION:
Read the manual carefully before starting to use the control unit. Keep the instructions for future reference.
Do not open the device, touching any internal components can cause electric shock. Contact with a voltage
over 50 Volts can be fatal. To reduce the risk of electric shock, do not dismantle the back of the device for any
reason. Moreover its opening would void the warranty.
Before connecting the device to the power supply, make sure that all the connections are correct.
Always
disconnect the unit from the supply before any cabling modification.
Any work on the equipment must be entrusted to a qualified engineer.
Failure to comply with these instructions can cause damages, fires or electric shock, and possible serious
injuries!
POWER SUPPLY
The NT935BH control unit can be supplied from 85 to 260 Vac-Vdc, without respecting the polarity in Vdc.
Before using it, make sure the power cable is not damaged, knotted or pinched. Do not tamper with the power cable.
Never disconnect the unit by pulling the cable, avoid touching the pins. Do not carry out any operations of
connecting/disconnecting with wet hands. To disconnect the device, do not use objects such as levers. Disconnect the
power supply immediately if you notice that the device gives off a burning smell or smoke: contact the assistance.
LIQUIDS
Do not expose the equipment to splashes or drops, do not position it in places with humidity exceeding 90% and never
touch with wet or damp hands. If any liquid penetrates the control unit, disconnect it immediately and contact technical
service.
CLEANING
Disconnect the power cable before cleaning the control unit, use a dry cloth to dust it, without any solvent or detergents,
and compressed air.
OBJECTS
Never insert any objects into the cracks of the control unit. If this happens, disconnect the control unit and contact an
engineer.
USE RESERVED TO QUALIFIED PERSONNEL
The purchased goods are a sophisticated electronic device that is totally unsuitable to be used by non-qualified
personnel. Any work must be carried out by a specialist engineer.
ACCESSORIES
The use of non-original accessories or spare parts can damage the unit and endanger users' safety. In the event of
faults, contact technical service.
POSITIONING
Install the control unit indoors, in a place protected from water splashes and fr
om the sun’s rays. Do not place near heat
sources exceeding the parameters stated in this manual. Position on a stable surface, far from any possible vibrations.
Position the control unit as far away as possible from any intense magnetic fields.
REPAIRS
Do not open the control unit. For any fault, always use qualified personnel. The opening of the control unit and/or the
removal of the series identifying label entails the automatic forfeiture of the warranty. The Warranty seal is applied to all
devices, any attempt to open the unit would break the seal and cause the consequent automatic forfeiture of the
warranty.
FUNCTIONS
To control the transformer correctly from a temperature point of view, enabling the VOTING function is allowed
where the load distributed between the phases of the transformer is adequately balanced.
TECHNICAL INFORMATION
Mail: [email protected] tel: 02/4581861
