pizzato FD M2-EX4 Serie Mode D'emploi page 4

1 INFORMATION ON THIS DOCUMENT
1.1 Function
These operating instructions provide information on installation, connection and safe
use for the following articles: FD ••••-M2-EX4, FL ••••-M2-EX4, FA ••••-•••-EX5.
1.2 Target audience
The operations described in these operating instructions may be performed only by
personnel who are qualified to install devices in ATEX environments with explosion
hazards, who are fully capable of understanding them, and who possess the technical
qualifications required for operating the machines and plants in which the safety
devices are to be installed.
1.3 Application field
These instructions apply exclusively to the products listed in paragraph Function, and
their accessories.
1.4 Original instructions
The Italian language version is the original set of instructions for the device. Versions
provided in other languages are translations of the original instructions.
2 SYMBOLS USED
This symbol indicates any relevant additional information
Attention: Any failure to observe this warning note can cause damage or
malfunction, including possible loss of the safety function.
3 DESCRIPTION
3.1 Device description
The device described in these operating instructions is a position switch composed of
a metal housing containing electrical contacts driven by actuator heads.
3.2 Intended use of the device
- The device described in these operating instructions is designed to be applied to
industrial machines with or without risk of explosion.
- The direct sale of this device to the public is prohibited.
- The use of the device for purposes other than those specified in these instructions
is prohibited.
- Any use other than as expressly specified in these instructions shall be considered
unintended by the manufacturer.
- Also considered unintended use:
a) using the device after having made structural, technical, or electrical modifications
to it;
b) using the product in a field of application other than as described in paragraph
TECHNICAL DATA.
4 INSTALLATION INSTRUCTIONS
Attention: Installing a protective device is not sufficient to ensure operator
safety or compliance with machine safety standards or directives. Before installing a
protective device, perform a specific risk analysis in accordance with the key health
and safety requirements in the Machinery Directive. The manufacturer guarantees
only the safe functioning of the product to which these operating instructions refer,
and not the functional safety of the entire machine or entire plant.
For assembly and operating instructions for articles F• ••93-M2-EX4,
F• ••99-M2-EX4, F• ••R2-M2-EX4, F• ••95-M2-EX4, F• ••78-M2-EX4, F• ••83-M2-EX4,
F• ••84-M2-EX4 please refer to the operating instructions for the versions of the article
to be used in standard environments (with no explosion hazard).
4.1 General conditions
- Please read these operating instructions carefully before installation to ensure pro-
per operation of the device and the safety of the application. Please contact our Tech-
nical Office (see paragraph SUPPORT) for any remaining issues or questions.
- The general engineering rules, specific national regulations and the applicable direc-
tives must be observed when selecting and using the devices.
- The utilization implies compliance and knowledge of the ATEX Directive 2014/34/
EU.
For use in potentially explosive areas, the installation rules stipulated by the technical
rules of the area for which the device is designed must be observed.
- Failure to comply with the requirements of the operating instructions or incorrect use
of the device during operation can lead to the damage of the device and the loss of
the safety function performed by the device itself. This will result in termination of the
warranty on the item and will release the manufacturer from any liability.
- Store the products in their original packaging, in a dry place with temperature betwe-
en -40°C and +70°C
Attention: Before proceeding with the installation of the device, ensure that the
markings on the product are compatible with the ATEX rating of the site where the
device will be used. Failure to comply with this requirement can cause serious injury
to persons, including death, and/or serious damage to property.
e-mail:
Pizzato Elettrica Srl
web site: www.pizzato.com
via Torino, 1
36063 MAROSTICA (VI) Phone:
ITALY Fax:
Devices
FD ••••-M2-EX4
II 3D Ex tc IIIC T80°C Dc
FL ••••-M2-EX4
II 3D Ex tc IIIC T80°C Dc
FA ••••-•••-EX5
II 3G Ex nC IIC T6 Gc
4.2 Instruments
Normal screwdrivers and tool keys are required for the installation of these devices.
4.3 Electrical parameters
Attention: The electrical parameters are indicated on the product and in the
catalogue and must be strictly observed.
FD ••••-M2-EX4, FL ••••-M2-EX4
Maximum rated voltage
Maximum thermal current Ith
FA ••••-•••-EX5
Maximum rated voltage
Maximum thermal current Ith
4.4 Installation
The device can be fastened in any position.
Always use the same number of screws as the number of holes on the housing when
mounting the device. Install the screws with medium resistance thread locker with the
number of threads engaged being equal to or greater than the screw diameter. The
device must never be fixed with fewer screws than holes available on the housing.
The diameter and property class of the screws must be suitable for the expected
loads. Tighten with a torque of between 2 and 3 Nm.
- Tighten the cover, head and lever screws with a torque of between 0.8 Nm and 1.2
Nm.
- Do not exceed the maximum actuation travel.
4.5 Installation requirements for articles FD ••••-M2-EX4, FL ••••-M2-EX4
- Do not perform any operation inside the device when there is voltage.
- Maintenance in the ambient temperature range (-20°C to +70°C) and compliance
with the instructions provided with the device are requirements for proper operation.
- During installation and connection, make sure that the conductors are correctly po-
sitioned and clamped in the terminals.
- Tighten the internal conductor terminals with a torque of between 0.6 and 0.8 Nm.
- Always use a cable gland suitable for a potentially explosive use environment and
for the cable section. Pursuant to EN 60529, the cable gland must have a degree of
protection IP at least equal to or greater than the IP of the device.
The cable glands must be cable glands for Ex equipment or Ex components and must
not invalidate the specific features of the device's protection type.
- At the end of the wiring, check that no contaminating element has been introduced
inside the device.
When the ambient temperature is higher than 60°C, the cables, cable glands and
conductors must be able to withstand a temperature that is higher than the ambient
temperature plus 10°C.
- Do not disassemble the device. If it is necessary to adjust the head of the device,
reposition the head in the base with greatest care after adjusting it.
- Before closing the device cover, verify the correct positioning of the gaskets.
- Verify that the electrical cables, wire-end sleeves, cable numbering systems and any
other parts do not obstruct the cover from closing correctly or if pressed between them
do not damage or compress the internal contact block.
- During and after the installation do not pull the electrical cables connected to the
device. If excessive tension is applied to the cables (which are not supported by an
appropriate cable gland), the contact block of the device may be damaged.
- The general installation and assembly requirements described in EN 60079-14 must
be complied with.
- To connect the external ground cable, use an eyelet terminal.
- When the wiring is complete, and before activation, verify that the device identifica-
tion code corresponds both on the cover and on the housing.
External earth connection
FD ••••-M2-EX4
4/18
info@pizzato.com
ZE FOG301A22-EU
+39.0424.470.930
+39.0424.470.955
Markings Certificate
EU declaration of conformity,
Pizzato Elettrica
EU declaration of conformity,
Pizzato Elettrica
500V AC, 600V DC
400V AC for contact blocks 20, 28
10A AC/DC
400V AC/DC
10A AC/DC
FL ••••-M2-EX4