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Installation
At installation and maintenance it is essential to observe applicable standards for electrical safety and
electrical installations in potentially explosive atmospheres, especially EN 60079-14.
Installation only in areas with low level of mechanical danger (in accordance with EN 60079-0, Tests
of enclosures), the place of installation must be light-protected.
Install the provided receptacle connector (same number of certificate imprinted) with a suitable
connecting cable together with the solenoid and valve according to these instructions. The Ex suitability
is solely fulfilled when installed completely..
Only single assembly admissible: the minimum distance to the next solenoid shall be at least 70 mm in
order to keep the admissible temperatures (at a duty cycle of 100 %).
After the removal of the packaging, make sure that dirt cannot penetrate into the system and check
that there is no dirt in the piping or the valve housing.
Make sure not to detach pipes and valves of pressurized systems.
Take suitable measures to exclude unintentional activation or inadmissible impairment.
Make sure not to damage O-rings and seals during assembly.
Mounting is admissible in any position. Preferably the solenoid coil points upwards.
The solenoid coil can be locked when offset by 45°.
In case of selection of the valve housing material, the following must be considered:
Plastics: In order to avoid the build-up of electrostatic charges, the requirements according to
EN 60079-0, Section 7.4, must be observed.
When properly installed ingress protection IP65 is achieved. Observe the provided seals and the
prescribed tightening torques pursuant to the assembly scheme. Only use original spare parts provided
by nass magnet, otherwise to this assembly the ATEX attestation of conformity is not applicable any
more.
The cable gland is suited for cable diameters of 4.5 mm to 6 mm or 6 mm to 8 mm, one gasket provided
for each range. Only one gasket at a time shall be used in the gland.
Please observe the respective requirements and ambient conditions (see EN 60079-14) when routing
cables for connection.
Prevent the connecting cables from being buckled and damaged in order to avoid short circuits and
interruptions.
Directly before the connector a strain relief must be provided in order to ensure that strain and torsion
are not transmitted to the connector.
The wire clamps are rated for wire cross sections from 0.5 mm² to 1.5 mm². The tightening torque of
the clamp screw is 0.2
Single-wired conductors may be used or either multi-wired or fine-wired conductors may be used if
wire end sleeves are applied. The wire ends shall be mounted into the screw joints properly and
undamaged. Only one conductor respectively one end sleeve may be inserted per clamp.
The terminal block can be offset in steps of 90° inside the connector housing such that the cable outlet
direction is adjustable. No further settings are possible.
Before operational start-up of the device, it must be ensured that the entire machine or system
corresponds to the determinations of the applicable EU-directives (e.g. the EMC Directive).
+0.1
Nm.
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