SEQUENCER WITH
DIFFERENTIAL PRESSURE
SWITCH
Technical brochure
FI 72.0483.0720E
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General instructions for safety, assembly, commissioning, usage and maintenance
to be read before working on the device
I. GENERAL
These instructions must be read jointly with:
+the standard NFC15-100
+the technical data sheet specific to the device
The Sefram devices are designed to be assembled,
commissioned
and
used
in
compliance
with
the
characteristics/data given in the technical data sheet. Always
adhere to all of directives, legislation, orders and most recent
standards in force for the stated field of application.
The assembly, commissioning, usage and maintenance
operations must always be carried out by qualified and
authorized personnel.
Personnel working on the devices must be familiar with the
safety rules and requirements in force regarding the
components, devices, machines and electrical installations.
Before any intervention on the cabinet, the equipment must be
de-energized by cutting off the power source upstream of it.
II. RECEPTION - STORAGE
After unpacking the device, check that this latter has not been
damaged during transport; for certain devices, remove the
protective film from the cover. The material must be stored
inside in a dry place.
In the event of a problem, please contact Sefram.
III. ASSEMBLY
The assembly operations must be carried out by qualified,
skilled and authorized personnel. Personnel working on these
devices must be familiar with the safety rules and
requirements in force.
The box must be mounted vertically.
For material connected permanently to the network, a quickly
accessible cut-off device must be incorporated into the cabling
installation of the building.
The device supply must be equipped with a device for
protection against risks of over-current and fault isolation.
The number of poles protected must be appropriate to the
neutral regime of the building and to the regulations in force.
The equipment must be connected to the PE protection mass
by green/yellow wires (NFC15-100).
The device is compatible with the neutral regimes TT, TN or
IT;
Nevertheless, we recommend that the device is supplied
through the intermediary of an insulation transformer for which
the primary is supplied between phases and not between
phase and neutral, so as to avoid any accidental over-voltage
caused when the neutral is cut before the phases.
In the event of a problem, please contact Sefram.
IV. COMMISSIONING AND USAGE
Commissioning is authorized only after duly establishing that
the device, the machine or the installation in which the device
has been integrated in a compliant manner, satisfies all of the
directives, legislation, orders and most recent standards in
force.
Commissioning operations must be carried out by qualified,
skilled and authorized personnel. Personnel working on these
devices must be familiar with the safety rules and
requirements in force.
Note: correct operational functioning does not in itself
constitute an indication of conformity to the recommendations
for the use of the material in complete safety.
Also read the maintenance recommendations which equally
apply during commissioning and use.
In the event of a problem, please contact Sefram.
V. MAINTENANCE
The device does not require any special maintenance.
For devices equipped with the pressure measurement, in
order to retain a precise pressure measurement, an annual
calibration is advised particularly at « zero » (see § calibration
on the technical data sheet)
The following operations are recommended; they constitute a
minimum:
-
Before any work intervention, we recommend that
the dust is removed
before
opening the box,
-
The device must not be opened in an excessively
dusty environment,
-
The settings must be carried out in the shortest lapse
of time so as not to engender any risks,
-
The integrity of the joints must be checked: remove
any trace of dust or other deposit,
-
Remove any trace of dust which could have
penetrated during the setting operation,
-
Always
ensure that the transparent cover is correctly
closed.
Maintenance operations and interventions inside the box must
be carried out by qualified, skilled and authorized personnel.
Personnel working on these devices must be familiar with the
safety rules and requirements in force.
In the event of a problem or any questions during these
operations please contact SEFRAM.
