12
Madas Technical Manual
- 3|3.2aX - REV. 0 of 1
st
Aug 2019
M16/RMX N.A. - MBA/RMX N.A.
ES
FR
EN
IT
• ATTENTION:
The coil is provided with a 3m long power supply cable (
1
). This cable
CANNOT
be replaced with a
different one. In the event of damage, the part (coil) must be disposed of and replaced with an identical new one; Any repair
(if possible) can only be carried out by the manufacturer;
• In the dangerous zone, wire the ends of the cable with explosion-proof approved equipment (E.g. Terminal box with “E”
protection or increased safety according to EN 60079-7) using the special wire terminals;
• Cable colours
Phase : brown (alternatively black or grey)
Neutral : blue
: yellow/green
• Make sure the connection cables are inserted correctly into the electrical terminal, ensuring they are not crushed and/or
damaged in order to prevent short circuits and interferences.
• Provide a fixed installation ensuring adequate protection against mechanical stress;
• The valve needs to be connected to earth either through the pipe or through other means (e.g. cable jumpers).
Special conditions for safe use
The “X” symbol (positioned at the end of the protection mode) indicates particular conditions of use:
• Clean the product regularly to prevent dust from building up;
• The valve must be installed in places at a low risk of mechanical impact;
• Minimum bending radius of the cable = 4 Ø; minimum installation temperature -35°C;
• The equipment must be protected against the effect of lightning discharges;
• Sparks caused by impact or friction on light metals can cause sources of ignition, therefore tools with corroded surfaces
must not be used under any circumstances (e.g. for adjustments, maintenance, etc.);
• Protect the product from impact or friction caused by other objects;
• Periodically check the integrity of the dissipative surface treatment of the coil and connector;
• Do not install in environments where the product is in direct contact with corrosive gases, chemicals, salt water, water or
steam (C3 or medium degree of environmental pollution). Contact the technical department for any other application, for
the compatibility analysis;
3.3 - INSTALLATION IN PLACES WHERE THERE IS THE RISK OF EXPLOSION (DIRECTIVE 2014/34/EU)
The solenoid valve complies with Directive 2014/34/EU as a device of group II, category 3G and as device of group II, category
3D; consequently, it is suited for installation in zones 2 and 22 as classified in Annex I of Directive 99/92/EC. The solenoid
valve is
NOT
suitable for use in zones1, 21, 0 and 20, as defined in aforementioned Directive 99/92/EC. To determine the
qualification and size of the hazardous zones, please refer to standard IEC EN 60079-10-1.
If installed and subject to maintenance in full compliance with all conditions and technical instructions provided in this manual, the
device does not pose a source of specific hazards: in particular, under conditions of normal operation, it is not expected for the
solenoid valve to emit a flammable substance into the atmosphere with methods such as to originate an explosive atmosphere.
During installation and maintenance, it is imperative to comply with the Ex standards, in particular EN 60079-14. Electrical
installation must be carried out by authorised personnel in accordance with relative national regulations.
Do not install the appliance in explosive atmospheres except for the specified gas and dust groups and areas (as explained
in section 2.0).
The subsequent application of a non-conductive coating with a thickness of > 0.2mm on the external surface prohibits its use
in environments with potentially explosive atmospheres where group IIC Gases are present. The thickness of the coating must
be < 2mm for group IIB.
For group III it is necessary to take appropriate precautions to prevent the accumulation of electrostatic charges (e.g. cleaning
with an antistatic cloth, etc.).